Prey preferences of the jaguar Panthera onca reflect the post-Pleistocene demise of large prey. [PDF]
Documenting the impacts of the Pleistocene megafaunal extinctions on predator-prey interactions is a challenge because of the incomplete fossil record and depauperate extant community structure.
Matt W Hayward +8 more
doaj +2 more sources
Do lions Panthera leo actively select prey or do prey preferences simply reflect chance responses via evolutionary adaptations to optimal foraging? [PDF]
Research on coursing predators has revealed that actions throughout the predatory behavioral sequence (using encounter rate, hunting rate, and kill rate as proxy measures of decisions) drive observed prey preferences.
Matt W Hayward +3 more
doaj +1 more source
Niche partitioning studies are essential to understand the mechanisms that allow ecologically similar species to coexist. The Rhone streber (Zingel asper) and the European bullhead (Cottus gobio) are both benthic riverine fishes that consume ...
Kurt Villsen +7 more
doaj +1 more source
Diet of Eastern Imperial Eagle (Aquila heliaca) in Bulgaria: composition, distribution and variation [PDF]
The Eastern Imperial Eagle (EIE) is a top predator exploiting different prey in different parts of its distribution. In this study, we summarise data collected over a long period of time (for 25 consecutive years), identifying key prey species in the ...
Dimitar Demerdzhiev +6 more
doaj +3 more sources
Prey Switching with a Linear Preference Trade-Off [PDF]
In ecology, prey switching refers to a predator's adaptive change of habitat or diet in response to prey abundance. In this paper, we study piecewise-smooth models of predator-prey interactions with a linear trade-off in a predator's prey preference. We consider optimally foraging predators and derive a model for a 1 predator-2 prey interaction with a ...
Sofia H. Piltz +2 more
openaire +2 more sources
Urban foraging : individual variation in inner-city graffiti writers' target preferences and specialization [PDF]
Objectives: Drawing upon optimal foraging theory, we examine graffiti writers’ individual target preferences to establish the diversity in their target choices (henceforth called “target specialization”).
Lens, Luc +3 more
core +2 more sources
Convergence between a mosquito-eating predator's natural diet and its prey-choice behaviour [PDF]
On the basis of 1115 records of Evarcha culicivora feeding in the field, we can characterize this East African jumping spider (Salticidae) as being distinctively stenophagic. We can also, on the basis of laboratory prey-choice experiments, characterize E.
Robert R. Jackson +2 more
doaj +1 more source
The Invasive Round Goby Neogobius melanostomus as a Potential Threat to Native Crayfish Populations
Despite the spread of round goby Neogobius melanostomus into freshwater streams, there is a lack of information with respect to its effect on macroinvertebrate communities, especially crustaceans. We studied foraging efficiency of N.
Pavel Franta +5 more
doaj +1 more source
Environmental drivers of large-scale movements of baleen whales in the mid-North Atlantic Ocean [PDF]
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Perez-Jorge, S., Tobena, M., Prieto, R., Vandeperre, F., Calmettes, B., Lehodey, P., & Silva, M.
Calmettes, Beatriz +6 more
core +1 more source
Lions Panthera leo Prefer Killing Certain Cattle Bos taurus Types
Lion predation on cattle causes severe human–wildlife conflict that results in retaliatory persecution throughout the lion’s geographic range. Cattle closely resemble the body size, shape, and herding patterns of preferred lion prey species.
Florian J. Weise +4 more
doaj +1 more source

