نتایج جستجو برای: Ecological niche
تعداد نتایج: 118276 فیلتر نتایج به سال:
Species relative abundance have closely related to ecological niche of plant communities. The broader specie ecological niche for food sources the greater relative abundance of plant species. Species abundance distributions models can be are divided into two groups Statistical and biological models. In this study we aimed to investigate how animal grazing (Long time grazing exclusion, Grazing a...
Mountain vipers of the genus Montivipera, generally, and the species of the Raddei clade, specifically, are interesting examples of species neo-endemism in Iran, Anatolia, and the Caucasus. Given the critical conservation status of these species, it is necessary to identify their suitable habitats for prioritizing conservation measures. We modeled ecological niche of each species based on four ...
numbers of persian leopards have considerably decreased in recent years and for this reason it has been categorized as endangered in the iucn classification. habitat destruction is believed to be the main cause of the species population decline. hence, attempts to preserve the remaining habitats of this kind of animal effectively are deemed essential in reversing its downgrading trend. to hit t...
1 Department of Ecology and Evolutionary Biology, University of Tennessee, 37996 Knoxville, Tennessee 2 BIOSS, King’s Buildings, EH93JZ Edinburgh, Scotland, UK (email: [email protected]) 3 Center for Theoretical Study, Charles University, Jilská 1, 110 00-CZ Praha 1, Czech Republic (e-mail: [email protected]) 4 Department of Ecology. Faculty of Science, Charles University, Viničná 7, 128 44-CZ...
Variation along the successional stage of a plant community is not limited to plant composition and diversity but also related to nutrient resources and plant species abundance distribution. Therefore, the use of models that consider the distribution of ecological niches in addition to the relative frequency of species in the distribution of species is also important. The object of current stud...
The ecological niche is a prominent theoretical concept in many ecological fields, central to ecological understanding of species interactions and community structure. To better understand this important concept, and the impact it has had on ecology, we used a citation analysis to examine the history of the niche through citation patterns during the 20th century. In particular, we sought to doc...
In the past decades, it has been debated whether ecological niche should be conserved among closely related species (phylogenetic niche conservatism, PNC) or largely divergent (traditional ecological niche theory and ecological speciation) and whether niche specialist and generalist might remain in equilibrium or niche generalist could not appear. In this study, we employed morphological traits...
A formal theory of the ecological niche is indispensable not only for semantic precision in philosophy to understand and compare it with other meanings of niche, but also when computer scientists and ecologists desire to create interoperable software where one can retrieve the niche of a species and compare their parameters. The proposed model is a more fine-grained description of the ecologica...
AIM The origins of ecological diversity in continental species assemblages have long intrigued biogeographers. We apply phylogenetic comparative analyses to disentangle the evolutionary patterns of ecological niches in an assemblage of European birds. We compare phylogenetic patterns in trophic, habitat and climatic niche components. LOCATION Europe. METHODS From polygon range maps and hand...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید