Tootfinder

Steps towards an Ecology for the Internet
Anil Madhavapeddy, Sam Reynolds, Alec P. Christie, David A. Coomes, Michael W. Dales, Patrick Ferris, Ryan Gibb, Hamed Haddadi, Sadiq Jaffer, Josh Millar, Cyrus Omar, William J. Sutherland, Jon Crowcroft
https://arxiv.org/abs/2506.06469

Steps towards an Ecology for the Internet
The Internet has grown from a humble set of protocols for end-to-end connectivity into a critical global system with no builtin "immune system". In the next decade the Internet will likely grow to a trillion nodes and need protection from threats ranging from floods of fake generative data to AI-driven malware. Unfortunately, growing centralisation has lead to the breakdown of mutualism across the network, with surveillance capitalism now the dominant business model. We take lessons from from b…

2025 Molecular Ecology Prize goes to Rosemary Gillespie, for harnessing molecular phylogenetics to understand community assembly and ecology
https://www.molecularecologist.…

🐚 Scientists use fossils to assess the health of Florida's largest remaining seagrass bed
https://phys.org/news/2025-05-scientists-fossils-health-florida-largest.html

Scientists use fossils to assess the health of Florida's largest remaining seagrass bed
The seagrass is greener along Florida's Nature Coast … figuratively, that is. A new study published in the journal Marine Ecology Progress Series shows that seagrass ecosystems along the northern half of Florida's Gulf Coast have remained relatively healthy and undisturbed for the last several thousand years.

We have a contender for leaf blowers in the category of stupid, harmful and pointless appliances. Using oil-powered string trimmer to cut the single blades of grass from between paving stones on a train platform. Noise, stench and almost zero efficiency.
#ecology

When Trackers Date Fish: A Benchmark and Framework for Underwater Multiple Fish Tracking
Weiran Li, Yeqiang Liu, Qiannan Guo, Yijie Wei, Hwa Liang Leo, Zhenbo Li
https://arxiv.org/abs/2507.06400

When Trackers Date Fish: A Benchmark and Framework for Underwater Multiple Fish Tracking
Multiple object tracking (MOT) technology has made significant progress in terrestrial applications, but underwater tracking scenarios remain underexplored despite their importance to marine ecology and aquaculture. We present Multiple Fish Tracking Dataset 2025 (MFT25), the first comprehensive dataset specifically designed for underwater multiple fish tracking, featuring 15 diverse video sequences with 408,578 meticulously annotated bounding boxes across 48,066 frames. Our dataset captures var…

Sound Interval-Based Synthesis for Probabilistic Programs
Guilherme Espada, Alcides Fonseca
https://arxiv.org/abs/2507.06939 https://…

Sound Interval-Based Synthesis for Probabilistic Programs
Probabilistic programming has become a standard practice to model stochastic events and learn about the behavior of nature in different scientific contexts, ranging from Genetics and Ecology to Linguistics and Psychology. However, domain practitioners (such as biologists) also need to be experts in statistics in order to select which probabilistic model is suitable for a given particular problem, relying then on probabilistic inference engines such as Stan, Pyro or Edward to fine-tune the param…

I wonder how many people understand that good organic farming practices do not contribute to this problem?
https://www.theguardian.com/environment/2025/jun/03/climate-species-collapse-ecology-insects-nature-reserves-…

I wonder how many people understand that good organic farming practices do not contribute to this problem?
https://www.theguardian.com/environment/2025/jun/03/climate-species-collapse-ecology-insects-nature-reserves-…

Long-range dispersal promotes spatial synchrony but reduces the length and time scales of synchronous fluctuations
Davi Arrais Nobre, Karen C. Abbott, Jonathan Machta, Alan Hastings
https://arxiv.org/abs/2506.08304

Long-range dispersal promotes spatial synchrony but reduces the length and time scales of synchronous fluctuations
Synchronous oscillations of spatially disjunct populations are widely observed in ecology. Even in the absence of spatially synchronized exogenous forces, metapopulations may synchronize via dispersal. For many species, most dispersal is local, but rare long-distance dispersal events also occur. While even small amounts of long-range dispersal are known to be important for processes like invasion and spatial spread rates, their potential influence on population synchrony is often overlooked, si…

'Half the tree of life': ecologists' horror as nature reserves are emptied of insects (Tess McClure/The Guardian)
https://www.theguardian.com/environment/2025/jun/03/climate-species-collapse-ecology-insects-nature-reserves-aoe
http://www.memeorandum.com/250603/p106#a250603p106

🇺🇦 #NowPlaying on KEXP's #MiddayShow
Marvin Gaye:
🎵 Mercy Mercy Me (The Ecology)
#MarvinGaye
https://rarerecordings.bandcamp.com/track/marvin-gaye-mercy-mercy-me
https://open.spotify.com/track/3IDc87lrpEHWFBASmgTgFV

Interesting study of eastern Joshua tree mycorrhizal associations from trees near the Dome Fire burn in Mojave National Preserve, with sampling stratified by season
#ecology #mutualism #JoshuaTree …

I wrote a brief essay on hepaticas and rue anemones and their roles in cultural ecology.

Analysis of Reaction-Diffusion Predator-Prey System under Random Switching
Nguyen H. Du, Nhu N. Nguyen
https://arxiv.org/abs/2507.06491 https://arxiv.org/pdf/2507.06491 https://arxiv.org/html/2507.06491
arXiv:2507.06491v1 Announce Type: new
Abstract: This paper investigates the long-term dynamics of a reaction-diffusion predator-prey system subject to random environmental fluctuations modeled by Markovian switching. The model is formulated as a hybrid system of partial differential equations (PDEs), where the switching between different ecological regimes captures the randomness in environmental conditions. We derive a critical threshold parameter that determines whether the predator species will eventually go extinct or persist. We further characterize the system's asymptotic behavior by providing a detailed pathwise description of the omega-limit set of solutions. This analysis reveals how the effects of random switching shape the distribution and long-term coexistence of the species. Numerical simulations are provided to validate and illustrate the theoretical findings, highlighting transitions between different dynamical regimes. To the best of our knowledge, this is the first work that rigorously analyzes a spatially diffusive predator-prey model under Markovian switching, thereby bridging the gap between spatial ecology and stochastic hybrid PDE systems.
toXiv_bot_toot

Leadership Detection via Time-Lagged Correlation-Based Network Inference
Thayanne Fran\c{c}a da Silva, Jos\'e Everardo Bessa Maia
https://arxiv.org/abs/2507.04917

Leadership Detection via Time-Lagged Correlation-Based Network Inference
Understanding leadership dynamics in collective behavior is a key challenge in animal ecology, swarm robotics, and intelligent transportation. Traditional information-theoretic approaches, including Transfer Entropy (TE) and Time-Lagged Mutual Information (TLMI), have been widely used to infer leader-follower relationships but face critical limitations in noisy or short-duration datasets due to their reliance on robust probability estimations. This study proposes a method based on dynamic netwo…

This is another horrifying statistic to shelve alongside the composition of global mammalian biomass:
• humans 34%
• livestock and pets 62%
• wild animals 4%
#science #biology #ecology

Jonathan Schofield (@urlyman@mastodon.social)
Attached: 1 image …Here are some highlights (lowlights): “If you drop all that old life into the container that we call Earth, and burn them, it turns out that what we burn in *1 year* weighs 100x more than everything alive today. Everything. All the whales, elephants, forests, insects, grass, crops, birds, fish, people, dogs and cats. Add up all the carbon in everything alive now, and still, in one year we burn a hundred times more.” #climateDiary

Modeling Income Distribution with the Gause-Witt Population Ecology System
Marcelo B. Ribeiro
https://arxiv.org/abs/2506.20881 https://

Modeling Income Distribution with the Gause-Witt Population Ecology System
This paper presents an empirical application of the Gause-Witt model of population ecology and ecosystems to the income distribution competitive dynamics of social classes in economic systems. The Gause-Witt mathematical system of coupled nonlinear first-order ordinary differential equations employed to model population of species sharing the same ecological niche and competing for the same resources was applied to the income data of Brazil. Previous studies using Brazilian income data from 198…

I’m at the point now where I inherently distrust any white man with a bad haircut. https://mastodon.social/@Snoro/114743381099800265

This https://arxiv.org/abs/2506.02606 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Multi Layered Autonomy and AI Ecologies in Robotic Art Installations
Symbiosis of Agents is a large-scale installation by Baoyang Chen that embeds AI-driven robots in an immersive, mirror-lined arena, probing the tension between machine agency and artistic authorship. Drawing on early cybernetics, rule-based conceptual art, and seminal robotic works, it orchestrates fluid exchanges among robotic arms, quadruped machines, their environment, and the public. A three tier faith system pilots the ecology: micro-level adaptive tactics, meso-level narrative drives, and…

IdentityByDescentDispersal.jl: Inferring dispersal rates with identity-by-descent blocks
Francisco Campuzano Jim\'enez, Arthur Zwaenepoel, Els Lea R De Keyzer, Hannes Svardal
https://arxiv.org/abs/2507.06964

IdentityByDescentDispersal.jl: Inferring dispersal rates with identity-by-descent blocks
The population density and per-generation dispersal rate of a population are central parameters in the study of evolution and ecology. The distribution of recent coalescent events between individuals in space can be used to estimate such quantities through the distribution of identity-by-descent (IBD) blocks. An IBD block is defined as a segment of DNA that has been inherited by a pair of individuals from a common ancestor without being broken by recombination. We introduce $\texttt{IdentityB…

🇺🇦 #NowPlaying on KEXP's #90TEEN
Marvin Gaye:
🎵 Mercy Mercy Me (The Ecology)
#MarvinGaye
https://rarerecordings.bandcamp.com/track/marvin-gaye-mercy-mercy-me
https://open.spotify.com/track/3IDc87lrpEHWFBASmgTgFV

Tensor-product interactions in Markov-switching models
Jan-Ole Koslik
https://arxiv.org/abs/2507.01555 https://arxiv.org/pdf/2507.015…

Tensor-product interactions in Markov-switching models
Markov-switching models are a powerful tool for modelling time series data that are driven by underlying latent states. As such, they are widely used in behavioural ecology, where discrete states can serve as proxies for behavioural modes and enable inference on latent behaviour driving e.g. observed movement. To understand drivers of behavioural changes, it is common to link model parameters to covariates. Over the last decade, nonparametric approaches have gained traction in this context to a…

"Objective-C is a West Coast language. Objective-C is a hippie. You throw stuff at it and it just trusts you. “Peace maaaaaannn… if you say this is an NSArray I believe you…” and it leans back in its armchair, smoking weed, listening to Marley, Floyd, Doors, or Janis, looking at you with deep eyes, telling you stories about Buddhism and how important is ecology, and that tonight they are going to a retreat in the beach to pray for Yemanjš and the salvation of dolphins."

The Developer Guide to Migrate Across Galaxies
This is the presentation I gave at the second App Builders Conference in Lausanne, Switzerland, April 25th, 2017.

Yesterday I got for myself the #book "The Ecology of Freedom" (a Spanish translation, I quite liked this particular edition ).
#books

Multi Layered Autonomy and AI Ecologies in Robotic Art Installations
Baoyang Chen, Xian Xu, Huamin Qu
https://arxiv.org/abs/2506.02606 https://

Multi Layered Autonomy and AI Ecologies in Robotic Art Installations
Symbiosis of Agents is a large-scale installation by Baoyang Chen that embeds AI-driven robots in an immersive, mirror-lined arena, probing the tension between machine agency and artistic authorship. Drawing on early cybernetics, rule-based conceptual art, and seminal robotic works, it orchestrates fluid exchanges among robotic arms, quadruped machines, their environment, and the public. A three tier faith system pilots the ecology: micro-level adaptive tactics, meso-level narrative drives, and…

Of lynxes and limetrees: New Insights into the Historical Ecology of the Bavarian Forest on the Threshold of Modernity
Bettina Haas, Markus Gerstmeier, Ricarda Huter, Malte Rehbein
https://arxiv.org/abs/2507.02512

Of lynxes and limetrees: New Insights into the Historical Ecology of the Bavarian Forest on the Threshold of Modernity
This study explores the historical ecology of the Bavarian Forest at the threshold of modernity through the lens of a large-scale biodiversity survey conducted in 1845 across the Kingdom of Bavaria. Focusing on the Forestry Office of Zwiesel, the article analyses archival records that document the distribution of animal and tree species during a period of administrative rationalisation and early scientific systematisation. These sources include official correspondence, detailed species inventor…

Newly daylighted Canyon Creek brings lost habitat back to Spanish Banks
A long-hidden urban stream in Spanish Banks Beach Park has been brought back to the surface thanks to efforts by the Vancouver Board of Parks and Recreation.
Local Nations, community members and elected officials gathered today to celebrate the public opening of Canyon Creek, a previously buried waterway that ran through Pacific Spirit Regional Park and under the western parking lot at Spanish Banks

Newly daylighted Canyon Creek brings lost habitat back to Spanish Banks
A long-hidden urban stream in Spanish Banks Beach Park has been brought back to the surface thanks to efforts by the Vancouver Board of Parks and Recreation.

2025 Harry Smith Prize awarded to œscar Romero-Bšez for landscape genomics work that “sets a new standard”
#science #MolecularEcology #genetics

Model Reduction of Homogeneous Polynomial Dynamical Systems via Tensor Decomposition
Xin Mao, Can Chen
https://arxiv.org/abs/2506.19165 https://

Model Reduction of Homogeneous Polynomial Dynamical Systems via Tensor Decomposition
Model reduction plays a critical role in system control, with established methods such as balanced truncation widely used for linear systems. However, extending these methods to nonlinear settings, particularly polynomial dynamical systems that are often used to model higher-order interactions in physics, biology, and ecology, remains a significant challenge. In this article, we develop a novel model reduction method for homogeneous polynomial dynamical systems (HPDSs) with linear input and out…

Viral Dark Matter: Illuminating Protein Function, Ecology, and Biotechnological Promises
James C. Kosmopoulos, Karthik Anantharaman
https://arxiv.org/abs/2506.11942

Viral Dark Matter: Illuminating Protein Function, Ecology, and Biotechnological Promises
Viruses are the most abundant biological entities on Earth and play central roles in shaping microbiomes and influencing ecosystem functions. Yet, most viral genes remain uncharacterized, comprising what is commonly referred to as "viral dark matter." Metagenomic studies across diverse environments consistently show that 40-90% of viral genes lack known homologs or annotated functions. This persistent knowledge gap limits our ability to interpret viral sequence data, understand virus-host inter…

A note on metapopulation models
Diepreye Ayabina, Hasan Sevil, Adam Kleczkowski, M. Gabriela M. Gomes
https://arxiv.org/abs/2506.04284 https://

A note on metapopulation models
Metapopulation models are commonly used in ecology, evolution, and epidemiology. These models usually entail homogeneity assumptions within patches and study networks of migration between patches to generate insights into conservation of species, differentiation of populations, and persistence of infectious diseases. Here, focusing on infectious disease epidemiology, we take a complementary approach and study the effects of individual variation within patches while neglecting any form of diseas…

Negligible effects of environmental fluctuations on the maintenance of coral biodiversity: A test of five storage effects
Evan C. Johnson, Sean R. Connolly
https://arxiv.org/abs/2506.03346

Negligible effects of environmental fluctuations on the maintenance of coral biodiversity: A test of five storage effects
The storage effect is a general explanation for ecological coexistence, wherein different species specialize on different states of a fluctuating environment, e.g., hot vs. cold years. Despite the storage effect's prominence in theoretical ecology, we lack evidence on whether it maintains biodiversity in nature. Here, we examine five storage effects in a community of 11 coral species from the Great Barrier Reef, using detailed size-structured demographic data collected over five years. We param…

Modeling and Inferring Metacommunity Dynamics with Maximum Caliber
Zachary Jackson, Mathew A. Leibold, Robert D. Holt, BingKan Xue
https://arxiv.org/abs/2506.17495

Modeling and Inferring Metacommunity Dynamics with Maximum Caliber
A major challenge for community ecology is to use distribution patterns to infer basic parameters of dynamical models without conducting laborious experimental manipulations. We present a novel framework drawn from statistical physics -- Maximum Caliber -- for characterizing the temporal dynamics of complex ecological systems in spatially extended landscapes and inferring parameters from temporal data. As an extension of Maximum Entropy modeling, Maximum Caliber models the probability of possib…