نتایج جستجو برای: ungulates

تعداد نتایج: 1483  

2014

The pronghorn antelope (Antilocapra americana) is the rarest and least-known hoofedmammal classified as a game species in the state of Washington. (Woodland caribou, Rangifer tarandus caribou, are rarer, but are classified as Endangered under both Federal and Washington’s state endangered species statute). Although often called simply “antelope”, pronghorns are not true antelope at all; most au...

2008
N. SHIGESADA Hans F. Weinberger Kohkichi Kawasaki Nanako Shigesada

It is shown that a trick introduced by H. R.Thieme [6] to study a one-species integral equation model with a nonmonotone operator can be used to show that some multispecies reaction-diffusion systems which are cooperative for small population densities but not for large ones have a spreading speed. The ideas are explained by considering a model for the interaction between ungulates and grassland.

Journal: :Ecology 2021

Ecologists have long desired predictive models that allow inference on population dynamics, where detailed demographic data are unavailable. Integral projection (IPMs) both and phenotypic outcomes at the level of to be predicted from distribution a functional trait, like body mass. In species mass markedly influences rates, as is rule among mammals, then IPMs provide not only opportunity assess...

Journal: :Mammal Study 2023

There is a compelling need to develop user-friendly and sensitive techniques monitor sika deer (Cervus nippon) populations in snowy regions, where initial stages of invasion have been observed. In snow, we can easily detect footsteps terrestrial mammals, which often serve as useful index population size. Here, examined the possibility identifying tracks with similar hoof prints left by two symp...

Journal: :ISPRS international journal of geo-information 2021

Conserving landscape connections among favorable habitats is a widely used strategy to maintain populations in an increasingly fragmented world. A species can then exist as metapopulation consisting of several subpopulations connected by dispersal. Our study focuses on the importance human–wildlife coexistence areas maintaining connectivity primary small ungulates within and outside protected l...

Journal: :Quaternary International 2021

In spite of the increased number investigations Mesolithic period in Atlantic Europe, including studies that have focused on reconstructing human diets, information about role shellfish subsistence strategies is still very limited. this study, an experimental programme to collect modern molluscs was carried out northern Iberia over a three-year order establish meat yield four main species recov...

Journal: :Oryx 2021

Abstract Throughout the Himalaya, mountain ungulates are threatened by hunting for meat and body parts, habitat loss, competition with livestock. Accurate population estimates important conservation management but most of available methods to estimate ungulate densities difficult implement in mountainous terrain. Here, we tested efficacy recent extension point transect method, using camera trap...

Journal: :Wildlife Research 2022

Context Understanding the factors determining impacts of roads and how they fragment landscapes limiting movement animals, is key to implement efficient mitigation measures. Aims Here we investigate if road orientation in relation resources, a largely overlooked factor on impact assessments, can influence animals within landscape where water resources are spatially clustered. Methods We evaluat...

Journal: :Ecological solutions and evidence 2023

Abstract Foraging on crops by wild ungulates may create human–wildlife conflicts through reducing crop production. Ungulates interact with and within complex socio‐ecological systems, making the reduction of damage a challenging task. Aside from ungulate densities, is influenced different drivers affecting foraging behaviour: food availability quality in landscape (i.e. foodscape) as well fear ...

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