Tootfinder

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

🚨🚨🚨 🚨 🚨 **Bird flu spreading through species: birds, cattle, humans** - National Zero
https://nationalzero.com/2024/04/02/bird-flu-spreading-through-species-birds-cattle-humans/

I understand that using non-technical terminology is important for communication to the general public, but, people know what crayfish are, right?? 🤔
"Lobster-like creatures are spreading and causing havoc across Ontario"
https://www.blogto.com/city/2024/05/invasi

Several species of lobster-like creatures spreading and causing havoc across Ontario
Several species of invasive crayfish are spreading across Ontario at worrying speed, and these small lobster-like crustaceans are already wreaking ...

Venomous snakes likely to migrate en masse amid global heating, says study
Climate breakdown is likely to lead to the large-scale migration of venomous snake species into new regions and unprepared countries, according to a study.
The researchers forecast that Nepal, Niger, Namibia, China, and Myanmar will gain the most venomous snake species from neighbouring countries under a heating climate.
Low-income countries in south and south-east Asia, as well as parts of Africa, wi…

"Study identifies species with a long history but short future amid threats"
#Animals
https://news.mongabay.com/2024/03/stud

Study identifies species with a long history but short future amid threats
Over the past 4 billion years, lifeforms have evolved into the spectacular array of species that now inhabit the planet. While many species radiated into extensive families of closely related species, others are so unique that they alone embody millions of years of evolutionary history — sole representatives of entire lineages of the tree of […]

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

Tl;dr nope: Can the fish in the ocean handle marine heatwaves?
https://thebarentsobserver.com/en/node/12843

Can the fish in the ocean handle marine heatwaves?
Long periods of unusually warm ocean temperatures, known as marine heatwaves, can have devastating effects on marine ecosystems and have been linked to widespread coral bleaching, harmful algal blooms and abrupt declines in commercially important fish species. How worried should we be?

I just went out during leaving-work-rush-hour and OMG what the hell are we doing as a species?!
If anyone needs me, I will be under my desk, wrapped in a blanket and playing my Switch.
#WFH if you can.

While Trump administration rolled back protections for for species newly classified as threatened, the Biden Administration is taking steps to restore them. #BidenHarris4More #VoteForClimate

Biden restores threatened species protections dropped by Trump
The Biden administration has restored rules to protect imperiled plants and animals that had been rolled back under former President Donald Trump. Among the changes announced Thursday, the U.S. Fish and Wildlife Service will reinstate a decades-old regulation that mandates blanket protections for species newly classified as threatened. The blanket protections regulation was dropped in 2019 as part of a suite of changes to the application of the species law under Trump. Those changes came as ext…

Scientists Use Sea Sponges to Study Global Warming Back to 1700 (Raymond Zhong/New York Times)
https://www.nytimes.com/2024/02/05/climate/global-warming-sponges.html

Scientists Use Sea Sponges to Study Global Warming Back to 1700
Research on a long-lived but rarely seen species in the Caribbean is helping scientists piece together a revised history of climate change.

🐟 Spinning, whirling fish in south Florida prompt emergency response
https://www.theguardian.com/environment/2024/mar/31/smalltooth-sawfish-south-florida

As lawmakers prepare to take up NOAA funding, conservation groups demand $300M spending hike for endangered marine species | Courthouse News Service
https://www.courthousenews.com/as-lawmaker

As lawmakers prepare to take up NOAA funding, conservation groups demand $300M spending hike for endangered marine species
The agency’s program for protecting marine mammals, sea turtles and other threatened wildlife remains underfunded, advocates say — while some species face extinction by as early as midcentu.

This https://arxiv.org/abs/2209.03924 has been replaced.
link: https://scholar.google.com/scholar?q=a

Correlation between Gyral Size, Brain Size, and Head Impact Risk across Mammalian Species
A study on primates has established that gyral size is largely independent of overall brain size. Building on this, and other research suggesting that brain gyrification may mitigate the effects of head impacts, our study aims to explore potential correlations between gyral size and the risk of head impact across a diverse range of mammalian species. Our findings corroborate the idea that gyral sizes are largely independent of brain sizes, especially among species with larger brains, thus exten…

Stabilization in two-species chemotaxis systems with singular sensitivity and Lotka-Volterra competitive kinetics
Halil Ibrahim Kurt, Wenxian Shen
https://arxiv.org/abs/2404.03158

Stabilization in two-species chemotaxis systems with singular sensitivity and Lotka-Volterra competitive kinetics
The current paper is concerned with the stabilization in the following parabolic-parabolic-elliptic chemotaxis system with singular sensitivity and Lotka-Volterra competitive kinetics, \begin{equation} \begin{cases} u_t=Δu-χ_1 \nabla\cdot (\frac{u}{w} \nabla w)+u(a_1-b_1u-c_1v) ,\quad &x\in Ω\cr v_t=Δv-χ_2 \nabla\cdot (\frac{v}{w} \nabla w)+v(a_2-b_2v-c_2u),\quad &x\in Ω\cr 0=Δw-μw +νu+ λv,\quad &x\in Ω\cr \frac{\partial u}{\partial n}=\frac{\partial v}{\partial n}=\frac{\partial w}{…

Harsh but fair: «For this reason, and as reported in other islands worldwide (Campbell & Donlan, 2005; Capizzi, 2020), complete eradication of feral goats represents the only option to preserve the natural plant communities in microinsular ecosystems over the long term.»
https://zenodo.org/records/10924962

Up to a third of Africa’s great apes are threatened by a boom in mining projects for minerals required for the renewable energy transition, new research shows.
An estimated 180,000 gorillas, bonobos and chimpanzees are at risk due to an increase in demand for critical minerals such as copper, lithium, nickel and cobalt, a study has found. Many of those minerals are required for clean energy technologies such as wind turbines and electric cars.
Researchers say the boom in demand is…

"Boom in mining for renewable energy minerals threatens Africa’s great apes"
#Africa #Apes #Animals

This https://arxiv.org/abs/2312.15795 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Biparental Reproduction may Enhance Species Sustainability by Conserving Shared Parental Traits more Faithfully than Monoparental Reproduction
Recognized effects of sexual reproduction and other forms of biparental reproduction in species sustainment and evolution include the increasing of diversity, accelerating adaptation, constraining the accumulation of deleterious mutations, and the homogenization of species genotype. Nevertheless, many questions remain open with regard to the evolution of biparental reproduction. In this paper we contribute an initial exploration of finer details of the homogenization effect that we believe dese…

Among the most fascinating characteristics of the human species and its great strengths is using its ability to speak to inform the other members of the herd of their observations about the world.
It's raining cats & dogs. He paid hush money to a porn star. I hate Mondays
Think about how much more uninformed of the world you'd be if you didn't just hear someone blabbing about it.
It's also a great idea about a website, where people would be allowed to si…

Even through the horror of death, comes the beauty of life.
2 FREE wallpapers for you to use.
Also uploaded to my Ko-fi completely uncompressed (Mastodon compresses images) for free here: https://ko-fi.com/i/ID1D5V6ZS8
Enjoy!!

Click to view on Ko-fi
Follow Be Aware on Ko-fi

Citizen Science and Machine Learning for Research and Nature Conservation: The Case of Eurasian Lynx, Free-ranging Rodents and Insects
Kinga Skorupska, Rafa{\l} Stryjek, Izabela Wierzbowska, Piotr Bebas, Maciej Grzeszczuk, Piotr Gago, Jaros{\l}aw Kowalski, Maciej Krzywicki, Jagoda Lazarek, Wies{\l}aw Kope\'c
https://arxiv.or…

Citizen Science and Machine Learning for Research and Nature Conservation: The Case of Eurasian Lynx, Free-ranging Rodents and Insects
Technology is increasingly used in Nature Reserves and National Parks around the world to support conservation efforts. Endangered species, such as the Eurasian Lynx (Lynx lynx), are monitored by a network of automatic photo traps. Yet, this method produces vast amounts of data, which needs to be prepared, analyzed and interpreted. Therefore, researchers working in this area increasingly need support to process this incoming information. One opportunity is to seek support from volunteer Citizen…

foodweb_little_rock: Little Rock Lake food web (1991)
A food web among the species found in Little Rock Lake in Wisconsin. Nodes are taxa (like species), either autotrophs, herbivores, carnivores or decomposers. Edges represent feeding (nutrient transfer) of one taxon on another.
This network has 183 nodes and 2494 edges.
Tags: Biological, Food web, Unweighted

Out-of-equilibrium thermodynamics of autocatalytic networks
Armand Despons
https://arxiv.org/abs/2404.03347 https://arxiv.org/pdf/240…

Out-of-equilibrium thermodynamics of autocatalytic networks
The purpose of this work is to clarify how the stoichiometric trait of autocatalytic networks, namely their absence of a conservation law, shapes their non-equilibrium behavior. To do so, we consider an autocatalytic network coupled with external species acting as food/waste materials, necessary to fulfill mass conservation. Then, we show that the production of autocatalytic species requires a conservative influx of these external species. From this, we derive the thermodynamic potential of an …

This Arduino Is Feeding The Fishes
https://poliverso.org/display/0477a01e-ef65bb66-ccfcc0ce651371d1
This Arduino Is Feeding The Fishes Depending on the species, a fish can be a fairly low-maintenance pet. But of course even the most laid back of cre…

This is quite a significant agreement between #Canada and #Alaska, agreeing to a 7 year moratorium on Chinook #Salmon harvest on the Yukon River. The stock is in desperate straits, so a life cycle of no catch is…

Canada, Alaska suspend fishing of Yukon River chinook salmon for 7 years | CBC News
In a bid to help the recovery of the Yukon River chinook salmon run, the federal government and the State of Alaska have agreed to implement a seven-year moratorium on fishing the species.

Babe, wake up - we just documented a bunch of wild deep sea creatures for the first time #science

New squid alert! 100+ species discovered off the coast of New Zealand
Dozens of new mollusks, three fish, and a mystery species were found during a three-week long expedition.

Chemical abundances and deviations from the solar S/O ratio in the gas-phase ISM of galaxies based on infrared emission lines
Borja P\'erez-D\'iaz, Enrique P\'erez-Montero, Juan A. Fern\'andez-Ontiveros, Jos\'e M. V\'ilchez, Antonio Hern\'an-Caballero, Ricardo Amor\'in
https://arxiv.org/abs/2403.02903 https://arxiv.org/pdf/2403.02903
arXiv:2403.02903v1 Announce Type: new
Abstract: The infrared (IR) range is extremely useful in the context of chemical abundance studies of the gas-phase interstellar medium (ISM) due to the large variety of ionic species traced in this regime, the negligible effects from dust attenuation or temperature stratification, and the amount of data that has been and will be released in the coming years. Taking advantage of available IR emission lines, we analysed the chemical content of the gas-phase ISM in a sample of 131 Star-Forming Galaxies (SFGs) and 73 Active Galactic Nuclei (AGNs). Particularly, we derived the chemical content via their total oxygen abundance in combination with nitrogen and sulfur abundances, and with the ionisation parameter. We used a new version of the code HII-CHI-Mistry-IR v3.1 which allows us to estimate log(N/O), 12 log(O/H), log(U), and, for the first time, 12 log(S/H) from IR emission lines, which can be applied to both SFGs and AGNs. We tested that the estimations from this new version, that only considers sulfur lines for the derivation of sulfur abundances, are compatible with previous studies. While most of the SFGs and AGNs show solar log(N/O) abundances, we found a large spread in the log(S/O) relative abundances. Specifically, we found extremely low log(S/O) values (1/10th solar) in some SFGs and AGNs with solar-like oxygen abundances. This result warns against the use of optical and IR sulfur emission lines to estimate oxygen abundances when no prior estimation of log(S/O) is provided.

A deep-sea robot may have discovered more than 100 new species - The Washington Post
https://www.w…

See the dozens of new species this deep-sea robot just discovered
Alien-looking lobsters, sponges, urchins, sea stars and sea lilies are among the creatures deep-sea explorers found off the coast of Chile.

Maximizing Network Phylogenetic Diversity
Leo van Iersel, Mark Jones, Jannik Schestag, Celine Scornavacca, Mathias Weller
https://arxiv.org/abs/2405.01091 …

Maximizing Network Phylogenetic Diversity
Network Phylogenetic Diversity (Network-PD) is a measure for the diversity of a set of species based on a rooted phylogenetic network (with branch lengths and inheritance probabilities on the reticulation edges) describing the evolution of those species. We consider the \textsc{Max-Network-PD} problem: given such a network, find~$k$ species with maximum Network-PD score. We show that this problem is fixed-parameter tractable (FPT) for binary networks, by describing an optimal algorithm running …

What's particularly muddy right now is
how a rising number of cattle infections are impacting farm workers,
beyond the Texas case that occurred back in March.
Veterinarians and physicians in states with dairy cattle outbreaks told The Associated Press there are multiple reports of farm workers falling sick,
but confirming cases is proving challenging for one key reason:
Many workers are reluctant to get tested.
"You have groups of individuals that…

What would it take to spark an H5N1 bird flu pandemic? And how bad would it be? | CBC News
For several decades, scientists have rung alarms that a dangerous form of bird flu had pandemic potential. As H5N1 spreads to more species, including U.S. dairy cattle, how likely is that worst-case scenario?

2022 retro-link! https://www.resilience.org/stories/2022-02-22/dennis-meadows-on-the-50th-anniversary-of-the-publication-of-the-limits-to-growth/ - Dennis Meadows on the 50th anniversary of the p…

"Boom in mining for renewable energy minerals threatens Africa’s great apes"
#Africa #Apes #Animals

This https://arxiv.org/abs/2303.04795 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLO_…

Stabilized profunctors and stable species of structures
We introduce a bicategorical model of linear logic which is a novel variation of the bicategory of groupoids, profunctors, and natural transformations. Our model is obtained by endowing groupoids with additional structure, called a kit, to stabilize the profunctors by controlling the freeness of the groupoid action on profunctor elements. The theory of generalized species of structures, based on profunctors, is refined to a new theory of \emph{stable species} of structures between groupoids w…

This https://arxiv.org/abs/2403.01527 has been replaced.
link: https://scholar.google.com/scholar?q=a

The GAPS Programme at TNG LIV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system
The atmospheric characterisation of hot and warm Neptune-size exoplanets is challenging due to their small radius and atmospheric scale height. The warm-Neptune HAT-P-11b is a remarkable target for such characterisation due to the large brightness of its host star (V=9.46 mag; H=7.13 mag). This work aims at: (i) reviewing the main physical and architectural properties of the HAT-P-11 planetary system; (ii) probing the presence of 8 molecular species in the atmosphere of HAT-P-11b at high spectr…

Our species has vastly underestimated its own stupidity.
Homo stupidus 🧌
:mastodon:

Computing Threshold Circuits with Bimolecular Void Reactions in Step Chemical Reaction Networks
Rachel Anderson, Bin Fu, Aiden Massie, Gourab Mukhopadhyay, Adrian Salinas, Robert Schweller, Evan Tomai, Tim Wylie
https://arxiv.org/abs/2405.00940

Computing Threshold Circuits with Bimolecular Void Reactions in Step Chemical Reaction Networks
Step Chemical Reaction Networks (step CRNs) are an augmentation of the Chemical Reaction Network (CRN) model where additional species may be introduced to the system in a sequence of ``steps.'' We study step CRN systems using a weak subset of reaction rules, \emph{void} rules, in which molecular species can only be deleted. We demonstrate that step CRNs with only void rules of size (2,0) can simulate threshold formulas (TFs) under linear resources. These limited systems can also simulate thresh…

Spring has sprung here in Flyover Country. I saw four species of butterflies today. Here's one, a freshly eclosed Zebra Swallowtail.
#FlyoverCountry #Pollinators #Butterfly

growing in my yard today ... "lesser periwinkle" ... and apparently one of a number of species growing here (outside Asheville, NC) that are originally from other parts of the world

21 Black Rhinos Successfully Moved to New Kenya Home With Space to Breed–Hailing Return of Species After 50 yrs https://www.goodnewsnetwork.org/21-black-rhinos-successfully-moved-to-new-kenya-home-with-space-to-breed/<…

21 Black Rhinos Successfully Moved to New Kenya Home With Space to Breed–Hailing Return of Species After 50 yrs
Kenya successfully transferred 21 eastern black rhinos to establish a new viable breeding population for a species on brink of extinction.

"all three of these radiations were associated with shifts from annual towards perennial life histories... The authors suggest that this is consistent with species formation driven by ecological opportunity."
Molecular natural history: Lupines
https://www.molecul…

Biden administration restores threatened species protections dropped by Trump
#BidenHarris4More
#EndangeredSpecies

Biden restores threatened species protections dropped by Trump
The Biden administration has restored rules to protect imperiled plants and animals that had been rolled back under former President Donald Trump. Among the changes announced Thursday, the U.S. Fish and Wildlife Service will reinstate a decades-old regulation that mandates blanket protections for species newly classified as threatened. The blanket protections regulation was dropped in 2019 as part of a suite of changes to the application of the species law under Trump. Those changes came as ext…

🐬 Ancient giant river dolphin species found in the Peruvian Amazon
https://news.mongabay.com/2024/03/ancient-giant-river-dolphin-species-found-in-the-peruvian-amazon/

Ancient giant river dolphin species found in the Peruvian Amazon
A team of paleontologists found a giant fossilized skull along the shore of the Napo River in the Peruvian Amazon. To their surprise, the relic belonged to a newly described species of giant freshwater dolphin. This colossal creature swam in the rivers of the Amazon around 16 million years ago and is considered the largest-known […]

Species of structure and physical dimensions
Heinz-J\"urgen Schmidt
https://arxiv.org/abs/2404.19305 https://arxiv.org/pdf/2404.…

Species of structure and physical dimensions
This study addresses the often underestimated importance of physical dimensions and units in the formal reconstruction of physical theories, focusing on structuralist approaches that use the concept of ``species of structure" as a meta-mathematical tool. We are pursuing an approach that goes back to a suggestion by T.~Tao. It involves the representation of fundamental physical quantities by one-dimensional real ordered vector spaces, while derived quantities are formulated using concepts from l…

Adsorption of Gases on Ti3C2Tx MXene: Implications from X-ray Photoelectron Spectroscopy
Lars-{\AA}ke N\"aslund, Esko Kokkonen, Martin Magnuson
https://arxiv.org/abs/2404.03287

Adsorption of Gases on Ti3C2Tx MXene: Implications from X-ray Photoelectron Spectroscopy
One of the most explored MXenes is the Ti3C2Tx, where Tx is designated to inherently formed termination species. Among many applications, Ti3C2Tx is an excellent material for energy storage, energy converting, and CO2-capturing devices. However, active sites for adsorption and surface reactions on the Ti3C2Tx-surface are still open questions to explore, which have implications for preparation methods when to obtain correct and optimized surface requirements. Here we use X-ray photoelectron spec…

"Butterfly study finds sharpest fall on record for small tortoiseshell in England"
#UK #UnitedKingdom #Butterflies

Cases of dysentery and Weil’s disease are soaring, and marine species are “full of cocaine, amphetamines and MDMA” due to sewage dumping. #ToryBritain #PlagueIsland

This https://arxiv.org/abs/2203.06076 has been replaced.
link: https://scholar.google.com/scholar?q=a

Bayesian Nonparametric Inference for "Species-sampling" Problems
Given an observed sample from a population of individuals belonging to species, "species-sampling" problems (SSPs) call for estimating some features of the unknown species composition of additional unobservable samples from the same population. Within SSPs, the problems of estimating coverage probabilities, the number of unseen species and coverages of prevalences have emerged in the past three decades for being the subject of numerous methodological and applied works, mostly in biological scie…

"#Coral research finds bleaching impedes reproduction and hinders recovery
#Bleaching can suppress reproduction in a common coral species found in the Great Barrier Reef, hampering future reef replenishment, new research led by the Australian Institute of Marine Science (AIMS) and James C…

Coral research finds bleaching impedes reproduction and hinders recovery
Bleaching can suppress reproduction in a common coral species found in the Great Barrier Reef, hampering future reef replenishment, new research led by the Australian Institute of Marine Science (AIMS) and James Cook University (JCU) has identified.

Mobility-induced kinetic effects in multicomponent mixtures
Filipe C. Thewes, Matthias Kr\"uger, Peter Sollich
https://arxiv.org/abs/2405.02159 https:…

Mobility-induced kinetic effects in multicomponent mixtures
We give an overview exploring the role of kinetics in multicomponent mixtures. Compared to the most commonly studied binary (single species plus solvent) case, multicomponent fluids show a rich interplay between kinetics and thermodynamics due to the possibility of fractionation, interdiffusion of mixture components and collective motion. This leads to a competition between multiple timescales that change depending on the underlying kinetics. At high densities, crowding effects are relevant and…

Performance Analysis and ISI Mitigation with Imperfect Transmitter in Molecular Communication
Dongliang Jing, Lin Lin, Andrew W. Eckford
https://arxiv.org/abs/2404.02383

Performance Analysis and ISI Mitigation with Imperfect Transmitter in Molecular Communication
In molecular communication (MC), molecules are released from the transmitter to convey information. This paper considers a realistic molecule shift keying (MoSK) scenario with two species of molecule in two reservoirs, where the molecules are harvested from the environment and placed into different reservoirs, which are purified by exchanging molecules between the reservoirs. This process consumes energy, and for a reasonable energy cost, the reservoirs cannot be pure; thus, our MoSK transmitte…

Classification of permanence and impermanence for a Lotka-Volterra model of three competing species with seasonal succession
Lei Niu, Xizhuang Xie
https://arxiv.org/abs/2402.19213

Classification of permanence and impermanence for a Lotka-Volterra model of three competing species with seasonal succession
In this paper, we are concerned with the permanence of a Lotka-Volterra model of three competing species with seasonal succession. Based on the existence of a carrying simplex, that is a globally attracting hypersurface of codimension one, we provide a complete classification of the permanence and impermanence in terms of inequalities on the parameters of this model. Moreover, we numerically show that invariant closed curves can occur in the permanent classes, which means that the positive fixe…

@… A new species of jellyfish was washed ashore

#invasivespecies

As the Federal Government Proposes a Plan to Cull Barred Owls in the West, the Debate Around ‘Invasive’ Species Heats Up - Inside Climate News
Some scientists say the term ‘invasive’ should not be used to describe nonnative species.

🐬 Ancient giant river dolphin species found in the Peruvian Amazon
https://news.mongabay.com/2024/03/ancient-giant-river-dolphin-species-found-in-the-peruvian-amazon/

Ancient giant river dolphin species found in the Peruvian Amazon
A team of paleontologists found a giant fossilized skull along the shore of the Napo River in the Peruvian Amazon. To their surprise, the relic belonged to a newly described species of giant freshwater dolphin. This colossal creature swam in the rivers of the Amazon around 16 million years ago and is considered the largest-known […]

This https://arxiv.org/abs/2401.02023 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

On Complexity of Stability Analysis in Higher-order Ecological Networks through Tensor Decompositions
Complex ecological networks are often characterized by intricate interactions that extend beyond pairwise relationships. Understanding the stability of higher-order ecological networks is salient for species coexistence, biodiversity, and community persistence. In this article, we present complexity analyses for determining the linear stability of higher-order ecological networks through tensor decompositions. We are interested in the higher-order generalized Lotka-Volterra model, which capture…

Deterministic preparation of a dual-species two-ion crystal
Maximilian J. Zawierucha, Till Rehmert, Jonas Keller, Tanja E. Mehlst\"aubler, Piet O. Schmidt, Fabian Wolf
https://arxiv.org/abs/2403.03010

This https://arxiv.org/abs/2307.06692 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Ejecta, Rings, and Dust in SN 1987A with JWST MIRI/MRS
Supernova (SN) 1987A is the nearest supernova in $\sim$400 years. Using the {\em JWST} MIRI Medium Resolution Spectrograph, we spatially resolved the ejecta, equatorial ring (ER) and outer rings in the mid-infrared 12,927 days after the explosion. The spectra are rich in line and dust continuum emission, both in the ejecta and the ring. Broad emission lines (280-380~km~s$^{-1}$ FWHM) seen from all singly-ionized species originate from the expanding ER, with properties consistent with dense post…

Hi friends, as we don't do a larger hike today so that my wife will fully recover for her upcoming business trip, I decided to write a blog post for a hike last April.
I also added 2 before/after photos which I found worthful to share. It reminds me about the upcoming hiking season. And that makes me smile 🙂
Enjoy the read!

Late-April Solitude: A Solo Alpine Journey
In the quiet majesty of a late-April solo hike, the mountain landscape revealed a subtle beauty in transition. The snow-covered peaks, the muted hues of transitioning grass, and the dance of light and shadow became a testament to the unfiltered allure of nature awakening from its winter slumber.

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 96 nodes and 634 edges.
Tags: Biological, Food web, Unweighted, Metadata

This https://arxiv.org/abs/2403.01527 has been replaced.
link: https://scholar.google.com/scholar?q=a

The GAPS Programme at TNG LIV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system
The atmospheric characterisation of hot and warm Neptune-size exoplanets is challenging due to their small radius and atmospheric scale height. The warm-Neptune HAT-P-11b is a remarkable target for such characterisation due to the large brightness of its host star (V=9.46 mag; H=7.13 mag). This work aims at: (i) reviewing the main physical and architectural properties of the HAT-P-11 planetary system; (ii) probing the presence of 8 molecular species in the atmosphere of HAT-P-11b at high spectr…

Spent some time last week at one of the campuses in the news re: anti-war demonstrations. I saw a lot of crazy shit.
It was sad, enraging, and pretty much left me with a feeling of hopelessness for humanity, yet again.
There are so many bad actors, bad faith interpretations, mischaracterizations, and mindless escalations.
It was a stark and depressing reminder of just how tribal we are as a species.
On the upside though was having some great conversation with my k…

@…
I think both inferiors would perform deference in whatever manner is customary to their status and their species. (Of course the whole premise is unfair, since dogs sniff each other's butts more as a how-ya-doing than a curtsy.)

Diphylla ecaudata –  Guardabosques Via https://www.thisiscolossal.com/2024/04/guardabosques-paper-bat-sculptures/
<…

Guardabosques' Meticulous Paper Portraits Celebrate Diverse Bat Species in 'Little Friends of Darkness' — Colossal
For Guardabosques, the mind-boggling variety of bats inspires 'Amiguitos de la Oscuridad,' or "little friends of darkness."

Complex pattern formation governed by a Cahn-Hilliard-Swift-Hohenberg system: Analysis and numerical simulations
Harald Garcke, Kei Fong Lam, Robert N\"urnberg, Andrea Signori
https://arxiv.org/abs/2405.01947

Complex pattern formation governed by a Cahn-Hilliard-Swift-Hohenberg system: Analysis and numerical simulations
This paper investigates a Cahn-Hilliard-Swift-Hohenberg system, focusing on a three-species chemical mixture subject to physical constraints on volume fractions. The resulting system leads to complex patterns involving a separation into phases as typical of the Cahn-Hilliard equation and small scale stripes and dots as seen in the Swift-Hohenberg equation. We introduce singular potentials of logarithmic type to enhance the model's accuracy in adhering to essential physical constraints. The pape…

Biden restores endangered species protections rolled back by Trump
https://post.news/@/reuters/2eKhU6k4d47c6VCrg6Ru6i0hyYM

Biden restores endangered species protections rolled back by Trump
By: Rich McKay (Reuters) -The Biden administration on Thursday restored some protections under the Endangered Species Act rolled back under former President Donald Trump, giving the federal government more leeway to designate plants or animals as threatened or endangered. The 51-ye

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

Bird of the Day — Takahē, New Zealand 2014
When dinosaurs walked the earth
#Nature

mist: MIST protein interaction database (2020)
The Molecular Interaction Search Tool (MIST) is a comprehensive resource of molecular interactions, assembled from severla primary sources. MIST currently supports several species, including:.
This network has 27105 nodes and 334495 edges.
Tags: Biological, Protein interactions, Unweighted
<…

Next Sunday (5 May) is National Dawn Chorus Day in the UK. Now if you find getting up before dawn a bit of a challenge you can record dawn chorus on your mobile and save the file. I use "GOM Recorder". The resulting file can then be imported into the excellent Bird app "Merlin". This app can both capture audio and then identify the birdsong within a sound file.
The image is a screenshot from the Merlin app.

Deterministic preparation of a dual-species two-ion crystal
Maximilian J. Zawierucha, Till Rehmert, Jonas Keller, Tanja E. Mehlst\"aubler, Piet O. Schmidt, Fabian Wolf
https://arxiv.org/abs/2403.03010

How Does One Species Become Many? Scientists Have Confirmed Darwin’s Hypothesis
https://scitechdaily.com/how-does-one-species-become-many-scientists-have-confirmed-darwins-hypothesis/

How Does One Species Become Many? Scientists Have Confirmed Darwin’s Hypothesis
Employing data from four species of Darwin’s finches on the Galápagos Islands, a team headed by McGill University has validated a long-held theory that the diversity of species arises from adaptation to various resources. Evolutionary biologists have traditionally believed that the transformation

The case for paying ranchers to raise trees instead of cattle
There is a simple, cost-effective and scientifically sound way to turn back the clock on global warming and reverse the catastrophic collapse of biodiversity:
pay ranchers to raise trees instead of cattle.
By mass, the world’s 1.7 billion cows are the dominant animal species on Earth,
far outweighing the human population,
and outweighing all the wild terrestrial mammals, birds, reptiles and amphibians…

Stable coexistence in indefinitely large systems of competing species
M. N. Mooij, M. Baudena, A. S. von der Heydt, I. Kryven
https://arxiv.org/abs/2404.14031

Stable coexistence in indefinitely large systems of competing species
The Lotka-Volterra system is a set of ordinary differential equations describing growth of interacting ecological species. This model has gained renewed interest in the context of random interaction networks. One of the debated questions is understanding how the number of species in the system, $n$, influences the stability of the model. Robert May demonstrated that large systems become unstable, unless species-species interactions vanish. This outcome has frequently been interpreted as a unive…

Bird of the Day — Takahē, New Zealand 2014
When dinosaurs walked the earth
#Nature

This https://arxiv.org/abs/2402.14793 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Adaptive hybrid density functionals
Exact exchange contributions are known to crucially affect electronic states, which in turn govern covalent bond formation and breaking in chemical species. Empirically averaging the exact exchange admixture over configurational and compositional degrees of freedom, hybrid density functional approximations (DFAs) have been widely successful, yet have fallen short to reach explicitly correlated high level quantum chemistry accuracy in general. Using quantum machine learning, we have adaptified h…

foodweb_baywet: Florida cypress wetlands food web (1998)
Networks of carbon exchanges among species in the cypress wetlands of South Florida. One network covers the wet and the other the dry season. Each node represents a taxon (similar to a species), and a directed edge indicates that one taxon uses another as food.
This network has 128 nodes and 2106 edges.
Tags: Biological, Food web, Weighted

"We found pesticides in a third of Australian frogs we tested. Did these cause mass deaths?"
#Australia #Pesticides #Animals

We found pesticides in a third of Australian frogs we tested. Did these cause mass deaths?
Among the poisons found in 36% of the frogs tested, rodenticide was detected for the first time. Pesticides are considered a threat to hundreds of amphibian species.

One of the #DFO advisory groups I have been involved with has finally published the findings from the National Dreissena (Zebra and Quagga Mussel) risk assessment for #Canada (model includes US as well). This was a Canadian Science Advisory Secretariat (

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 86 nodes and 415 edges.
Tags: Biological, Food web, Unweighted, Metadata

Florida Dolphin Dies of Bird Flu as Alarm Grows Over Species Spread
https://gizmodo.com/first-bird-flu-infection-kills-florida-dolphin-source-1851439482

Florida Dolphin Dies of Bird Flu as Alarm Grows Over Species Spread
Florida scientists have reported the first known and fatal case of highly pathogenic H5N1 avian influenza in a bottlenose dolphin.

mist: MIST protein interaction database (2020)
The Molecular Interaction Search Tool (MIST) is a comprehensive resource of molecular interactions, assembled from severla primary sources. MIST currently supports several species, including:.
This network has 3563 nodes and 52013 edges.
Tags: Biological, Protein interactions, Unweighted

Dragons, sea toads and the longest creature ever seen found on undersea peaks off South America
Squat lobsters, bright red sea toads and deep-sea dragon fishwere among
more than 160 species never previously seen in the region
that were spotted on a recent expedition
exploring an underwater mountain range
off the coast of South America.
Researchers from the California-based Schmidt Ocean Institute
believe that at least 50 of those species are likely …

Dragons, sea toads and the longest creature ever seen found on undersea peaks off South America
Squat lobsters, bright red sea toads and deep-sea dragon fishwere among
more than 160 species never previously seen in the region
that were spotted on a recent expedition
exploring an underwater mountain range
off the coast of South America.
Researchers from the California-based Schmidt Ocean Institute
believe that at least 50 of those species are likely …

foodweb_baywet: Florida cypress wetlands food web (1998)
Networks of carbon exchanges among species in the cypress wetlands of South Florida. One network covers the wet and the other the dry season. Each node represents a taxon (similar to a species), and a directed edge indicates that one taxon uses another as food.
This network has 128 nodes and 2106 edges.
Tags: Biological, Food web, Weighted

"Early warning system to track Asian hornets unveiled by UK researchers"
#UK #UnitedKingdom #AI #ArtificialIntelligence

"Early warning system to track Asian hornets unveiled by UK researchers"
#UK #UnitedKingdom #AI #ArtificialIntelligence

tree-of-life: Protein interactomes across the tree of life (2019)
Protein-protein iteraction networks ("interactome") for 1,840 species. An interactome captures all physical protein-protein interactions within one species, from direct biophysical protein-protein interactions to regulatory protein-DNA and metabolic interactions. .
This network has 1039 nodes and 3472 edges.
Tags: Biological, Protein interactions

tree-of-life: Protein interactomes across the tree of life (2019)
Protein-protein iteraction networks ("interactome") for 1,840 species. An interactome captures all physical protein-protein interactions within one species, from direct biophysical protein-protein interactions to regulatory protein-DNA and metabolic interactions. .
This network has 1039 nodes and 3472 edges.
Tags: Biological, Protein interactions

Scientists link elusive human group to 150,000-year-old Chinese ‘dragon man’
Evidence from the DNA traces left by #Denisovans shows they lived on the Tibetan plateau, ­probably ­travelled to the Philippines and Laos in south Asia and might have made their way to northern China more than 100,000 years ago. They interbred with modern humans.
Their DNA, which was first found in samples from the…

"Could a couple of Thai otters have helped the UK’s otter population recover? Our study provides a hint"
#UK #UnitedKingdom #Otters

Could a couple of Thai otters have helped the UK’s otter population recover? Our study provides a hint
Research has revealed how British otters may have been able to recover from species loss in the 1950s with the help of otters from Asia.

White House announces opposition to slew of House GOP bills targeting environmental regulations
The Biden administration announced that it “strongly opposes” a group of Republican-backed bills expected to be considered by the House this week that will target its environmental regulations.
The White House office of management and budgeted targeted six bills proposed by Republicans,
including measures to remove gray wolves from the list of endangered species,
open up land…

"Mass extinction: our fossil study reveals which types of species are most at risk from climate change"
#Climate #ClimateChange #Fossils

Mass extinction: our fossil study reveals which types of species are most at risk from climate change
If the climate warms by more than 7 degrees, the likelihood of extinction for a species increases, regardless of its other traits.

foodweb_little_rock: Little Rock Lake food web (1991)
A food web among the species found in Little Rock Lake in Wisconsin. Nodes are taxa (like species), either autotrophs, herbivores, carnivores or decomposers. Edges represent feeding (nutrient transfer) of one taxon on another.
This network has 183 nodes and 2494 edges.
Tags: Biological, Food web, Unweighted

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 105 nodes and 343 edges.
Tags: Biological, Food web, Unweighted, Metadata

"Air pollution can make insects mate with the wrong species"
#Pollution #AirPollution #Insects

Air pollution can make insects mate with the wrong species
Ground-level ozone, a product of pollution from cars, degrades insect pheromones, and this can result in mismatched mating and sterile offspring

foodweb_baywet: Florida cypress wetlands food web (1998)
Networks of carbon exchanges among species in the cypress wetlands of South Florida. One network covers the wet and the other the dry season. Each node represents a taxon (similar to a species), and a directed edge indicates that one taxon uses another as food.
This network has 128 nodes and 2106 edges.
Tags: Biological, Food web, Weighted

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

mist: MIST protein interaction database (2020)
The Molecular Interaction Search Tool (MIST) is a comprehensive resource of molecular interactions, assembled from severla primary sources. MIST currently supports several species, including:.
This network has 33399 nodes and 2028834 edges.
Tags: Biological, Protein interactions, Unweighted