Results 131 to 140 of about 168,414 (382)
Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?
The Anatomical Record, EarlyView.Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley +1 more source
Substrate size modifies stream grazer–biofilm interactions in the presence of invertivorous fish
Ecology, Volume 103, Issue 12, December 2022., 2022 Abstract When herbivore abundance is controlled by predators there may be an indirect positive effect on primary producers due to reduced grazing pressure, but the potential of predation refuges to modify such trophic cascades has rarely been studied.
Ricardo J. Albariño +4 more
wiley +1 more source
Consequences of Culling in Deterministic ODE Predator-Prey Models [PDF]
arXiv, 2016 We show, within the context of the standard class of deterministic ODE predator-prey mathematical models, that predator culling does not produce a long term decrease in the predator population.
arxiv
, 2015 Summary Predation plays a fundamental role in evolutionary processes, driving changes in prey morphology, physiology and behaviour. With organisms being increasingly exposed to rapid environmental changes, there is growing interest in understanding ...
I. Fürtbauer +3 more
semanticscholar +1 more source
Early synapsids neurosensory diversity revealed by CT and synchrotron scanning
The Anatomical Record, EarlyView.Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit +6 more
wiley +1 more source
Ecology, Volume 103, Issue 12, December 2022., 2022 Abstract The outcomes of species interactions can vary greatly in time and space with the outcomes of some interactions determined by priority effects. On coral reefs, benthic algae rapidly colonize disturbed substrate. In the absence of top‐down control from herbivorous fishes, these algae can inhibit the recruitment of reef‐building corals, leading ...
Thomas C. Adam +8 more
wiley +1 more source
Predator-prey models with competition, Part II: uniform regularity estimates [PDF]
arXiv, 2019 We study a system of elliptic equations with strong competition and an arbitrary large number of components. The system is related to a model of predators and prey, with a single and where several predators compete with each other. In this paper we derive regularity estimates of the solutions that are independent of the number of components (i.e ...
arxiv
Notes on avian predation on young rabbits, Oryctolagus cuniculus (L.) [PDF]
, 1957 GM Dunnet
openalex +1 more source
The Anatomical Record, EarlyView.Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido +2 more
wiley +1 more source
Root hemiparasitic plants are associated with more even communities across North America
Ecology, Volume 103, Issue 12, December 2022., 2022 Abstract Root hemiparasitic plants both compete with and extract resources from host plants. By reducing the abundance of dominant plants and releasing subordinates from competitive exclusion, they can have an outsized impact on plant communities. Most research on the ecological role of hemiparasites is manipulative and focuses on a small number of ...
Jasna Hodžić +4 more
wiley +1 more source