Results 41 to 50 of about 504,585 (415)
An Economical Custom-Built Drone for Assessing Whale Health
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]
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]
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]
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
Mind the gap: Experimental tests to improve efficacy of fladry for nonlethal management of coyotes
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
Tearing Out the Income Tax by the (Grass)Roots [PDF]
Landscapes are increasingly fragmented, and conservation programs have started to look at network approaches for maintaining populations at a larger scale. We present an agent-based model of predator–prey dynamics where the agents (i.e.
A Hastings+52 more
core +2 more sources
Selective Predation of a Stalking Predator on Ungulate Prey
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
Nonlethal deterrents against carnivores are important components to protecting livestock and conserving carnivore populations. However, the performance of the visual deterrent called fladry, a historical tool used to defend livestock from carnivores, is ...
Julie K. Young+2 more
doaj +1 more source
Prey aggregation is an effective olfactory predator avoidance strategy [PDF]
Predator–prey interactions have a major effect on species abundance and diversity, and aggregation is a well-known anti-predator behaviour. For immobile prey, the effectiveness of aggregation depends on two conditions: (a) the inability of the predator ...
Dunn, Alison M.+2 more
core +2 more sources