Results 21 to 30 of about 103,193 (342)
The balance between contamination and predation determine species existence in prey-predator dynamics with contaminated and uncontaminated prey [PDF]
arXiv, 2023 In freshwater ecosystems, aquatic insects that ontogenetically shift their habitat from aquatic to terrestrial play vital roles as prey subsidies that move nutrients and energy from aquatic to terrestrial food webs. As a result, these subsidies negatively affect alternative terrestrial prey by enhancing predator density.
arxiv
An Economical Custom-Built Drone for Assessing Whale Health
Frontiers in Marine Science, 2017 Drones or Unmanned Aerial Vehicles (UAVs) have huge potential to improve the safety and efficiency of sample collection from wild animals under logistically challenging circumstances.
Vanessa Pirotta +6 more
doaj +1 more source
Global solvability of a predator-prey model with predator-taxis and prey-taxis [PDF]
arXiv, 2021 This paper is concerned with a diffusive predator-prey model with predator-taxis and prey-taxis. Based on the Schauder fixed point theorem, we prove the global existence, uniqueness and boundedness of the classical solutions under the conditions that the predator-taxis and prey-taxis effects are weak enough.
arxiv
A sufficient condition on successful invasion by the predator [PDF]
arXiv, 2023 In this paper, we provide a sufficient condition on successful invasion by the predator. Specially, we obtain the persistence of traveling wave solutions of predator-prey system, in which the predator can survive without the predation of the prey. This proof heavily depends on comparison principle of scalar monostable equation, the rescaling method and
arxiv
Optimising low-Reynolds-number predation via optimal control and reinforcement learning [PDF]
, 2022 We seek the best stroke sequences of a finite-size swimming predator chasing a non-motile point or finite--size prey at low Reynolds number. We use optimal control to seek the globally-optimal solutions for the former and RL for general situations. The predator is represented by a squirmer model that can translate forward and laterally, rotate and ...
arxiv +1 more source
Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 470-483, December 2022., 2022 In Yellowstone Lake, Wyoming, lake trout carcasses are used to suppress invasive lake trout embryos in an effort to conserve native Yellowstone cutthroat trout. Using a field experiment, we determined that carcass treatment had limited, non‐target effects on benthic invertebrates.
Michelle A. Briggs +6 more
wiley +1 more source
The restoration potential of offshore mussel farming on degraded seabed habitat
Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 437-449, December 2022., 2022 Due to the artificial structures that accumulate mussels and exclude destructive fishing practices, the seabed could be restored by the installation of mussel farming structure. After four years, there was a significantly greater abundance of mobile taxa compared to the Controls that remained open to trawling. Commercial European lobster and brown crab
Danielle Bridger +7 more
wiley +1 more source
Mind the gap: Experimental tests to improve efficacy of fladry for nonlethal management of coyotes
Wildlife Society Bulletin, 2019 Coyotes (Canis latrans) are the top predator of livestock in the contiguous United States. Developing more effective nonlethal tools to prevent coyote depredation will facilitate coexistence between livestock producers and coyotes.
Julie K. Young +2 more
doaj +1 more source
Selective Predation of a Stalking Predator on Ungulate Prey
PLOS ONE, 2016 Prey selection is a key factor shaping animal populations and evolutionary dynamics. An optimal forager should target prey that offers the highest benefits in terms of energy content at the lowest costs. Predators are therefore expected to select for prey of optimal size. Stalking predators do not pursue their prey long, which may lead to a more random
Benno Woelfing +7 more
openaire +7 more sources