Results 41 to 50 of about 2,542 (185)

Existence of Solution for Two Classes of Quasilinear Systems Defined on a Nonreflexive Orlicz–Sobolev Spaces

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper proves the existence of nontrivial solution for two classes of quasilinear systems of the type −ΔΦ1u=Fu(x,u,v)+λRu(x,u,v)inΩ−ΔΦ2v=−Fv(x,u,v)−λRv(x,u,v)inΩu=v=0on∂Ω$$ \left\{\begin{array}{l}\hfill -{\Delta}_{\Phi_1}u={F}_u\left(x,u,v\right)+\lambda {R}_u\left(x,u,v\right)\kern0.1832424242424242em \mathrm{in}\kern0.3em \Omega ...
Lucas da Silva, Marco Souto
wiley   +1 more source

Hematology of mountain lions (Puma concolor) in the Sierra Nevada, California, USA: effect of sex, season, or location?

open access: yesCalifornia Fish and Wildlife Journal, 2020
There is a paucity of published hematological data for wild, free-ranging mountain lions (Puma concolor). We collected such information from mountain lions occurring at mid-elevations to increase available baseline information. We captured and sampled
Vernon C. Bleich   +3 more
doaj   +1 more source

A GIS‐Based Approach to Modeling Carnivore Activity in the Pleistocene Site of Cova del Rinoceront (Iberian Peninsula)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín   +3 more
wiley   +1 more source

Observations of a puma predation on endangered California condors: Implications for species recovery

open access: yesEcosphere
Reintroduction of endangered species is wrought with many challenges, but one often overlooked challenge is the threat of predation of naïve individuals.
Aidan B. Branney   +3 more
doaj   +1 more source

The magnitude and economic replacement value of wild meat obtained from ‘recreational’ big game hunting in the United States

open access: yesPeople and Nature, EarlyView.
Abstract Meat production has notable benefits for food security, nutrition and various production economies, but has elicited substantial negative environmental impacts. Recreational hunting provides an alternative to agricultural meat production for over 24 million hunters worldwide.
Shane P. Mahoney, Richard D. Honor
wiley   +1 more source

Modelling the surprising recolonisation of an understudied aquatic mammal in a highly urbanised area: fortune favoured the smooth‐coated otter in Singapore

open access: yesWildlife Biology, EarlyView.
Ever‐growing human activities present an active and continuing threat to many species throughout the world. Nevertheless, concerted conservation efforts in some regions have balanced these threats and allowed endangered species to recolonise former parts of their original ranges and reverse their decline.
Kilian Hughes   +2 more
wiley   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

open access: yesWildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

Citizen science project on urban canids provides different results from camera traps but generates interest and revenue

open access: yesWildlife Biology, EarlyView.
As urbanization increases, wildlife increasingly encounters people. Coyotes Canis latrans and red foxes Vulpes vulpes are two canid species that have readily adapted to urban environments. Citizen science has emerged as a low‐cost method of collecting data on urban‐adapted species that can benefit management agencies but may provide different results ...
Neville F. Taraporevala   +2 more
wiley   +1 more source

Fear or feast: small mammal activity increases in the presence of carcasses despite increased threat of predation by black‐backed jackals

open access: yesWildlife Biology, EarlyView.
Food acquisition is arguably the most important, and among the riskiest behaviours for most mammals. Carcasses are an ephemeral resource for many scavengers, particularly black‐backed jackals Lupulella mesomelas that prey on small mammals. Landscape of fear theory suggests that prey species should reduce their activity in areas of high predator ...
Haemish I. A. S. Melville   +1 more
wiley   +1 more source

Enhancing hotspot mapping of illegal wild meat trade in Kenya through market surveys and confiscated meat analyses

open access: yesWildlife Biology, EarlyView.
Illegal trade of wild meat pose a severe threat to the survival of wildlife populations. The decline in the number of some species has been directly linked to these illegal activities. Poachers and traders of illegal wild meat products often mask them as livestock meat to sell to consumers who may or may not be complicit.
Moses Y. Otiende   +7 more
wiley   +1 more source

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