نتایج جستجو برای: species distribution model sdms
تعداد نتایج: 3026550 فیلتر نتایج به سال:
Understanding seasonal distribution and movement patterns of animals that migrate long distances is an essential part of monitoring and conserving their populations. Compared to migratory birds and other more conspicuous migrants, we know very little about the movement patterns of many migratory bats. Hoary bats (Lasiurus cinereus), a cryptic, wide-ranging, long-distance migrant, comprise a sub...
Climate change during the past five decades has impacted significantly on natural ecosystems, and the rate of current climate change is of great concern among conservation biologists. Species Distribution Models (SDMs) have been used widely to project changes in species' bioclimatic envelopes under future climate scenarios. Here, we aimed to advance this technique by assessing future changes in...
Spatially explicit biogeographic models are among the most used methods in conservation biogeography, with correlative species distribution (SDMs) being popular them. SDMs can identify potential for species’ and community range shifts under climate change, thus inspire, inform, guide complex adaptive management planning efforts such as collaborative transboundary frameworks. However, rarely dev...
Species distribution models (SDMs) are commonly used to assess potential climate change impacts on biodiversity, but several critical methodological decisions are often made arbitrarily. We compare variability arising from these decisions to the uncertainty in future climate change itself. We also test whether certain choices offer improved skill for extrapolating to a changed climate and wheth...
Abstract In an increasingly urbanized world, there is a need to study urban areas as their own class of ecosystems well assess the impacts anthropogenic on biodiversity. However, collecting sufficient number species observations estimate patterns biodiversity in city can be costly. Here we investigated use community science-based data occurrences, combined with distribution models (SDMs), built...
مدل روزنه های موازی موج دار (corrugated oarallel bundle model) برای تعریف اثر ساختمان روزنه ها در نفوذ-واکنش (diffusion and reaction) در کاتالیستهای متخلخل بکار می رود. در مدل روزنه های موج دار، از یک دسته روزنه های اصلی (pore) استفاده شده است . هر یک از این روزنه های اصلی دارای یکسری عناصر روزنه می باشد که هر عنصر دارای یک شعاع تعیین شده به صورت اتفاقی از یک توزیع اندازه روزنه ها (pore size di...
Invasion dynamics are context-dependent and non-equilibrial, with invasive spread associated impacts continuously unfolding contingent on pathway, history, chance, over features of recipient ecosystems. Identifying a tool that can predict the risk extent an invasion, help stakeholders make informed decisions, is highly sought after. The Species Distribution Model (SDM) powerful statistical mach...
Building reliable species distribution models (SDMs) from presence-only information requires a good understanding of the spatial variation in sampling effort. However, most cases, effort is unknown, leading to biases SDMs. This study proposes method jointly estimate parameters and densities avoid such biases. The particularly suited analysis massive but highly heterogeneous data. proposed based...
During the Quaternary, large climate oscillations impacted distribution and demography of species globally. Two approaches have played a major role in reconstructing changes through time: Bayesian Skyline Plots (BSPs), which reconstruct population fluctuations based on genetic data, Species Distribution Models (SDMs), allow us to back-cast range occupied by its climatic preferences. In this pap...
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