Tootfinder

Towards a compleat theory of ecosystem size spectra
Ralf Schwamborn
https://arxiv.org/abs/2509.00023 https://arxiv.org/pdf/2509.00023

Towards a compleat theory of ecosystem size spectra
The regularity of ecosystem size spectra is one of the most intriguing and relevant phenomena on our planet. Aquatic size spectra generally show a log-linearly downtrending shape, following a power-law distribution. A constant log-linear slope has been reported for many marine pelagic ecosystems, often being approximately b = -1. Conversely, there are variable trophic-level-biomass relationships (trophic pyramids). The contrasting observations of a constant biomass (M) spectrum slope and highly…

Tidal Disruption in Topological Solitons and the Emergence of an Effective Horizon
Pierre Heidmann, Gela Patashuri
https://arxiv.org/abs/2506.05463 https:/…

Tidal Disruption in Topological Solitons and the Emergence of an Effective Horizon
We compute the dynamics of particles and strings falling into smooth horizonless spacetimes that match the Schwarzschild black hole but replace its horizon with a smooth cap in supergravity. The cap consists of a regular topological structure formed by the deformations of extra compact dimensions. We show that infalling particles follow Schwarzschild-like trajectories down to the cap, but experience rapidly growing tidal forces that reach extreme values. In addition, infalling strings encounter…