Results 31 to 40 of about 8,286 (161)

Incorporating intraspecific variation into species distribution models improves climate change analyses of a widespread West African tree species (Pterocarpus erinaceus Poir, Fabaceae)

open access: yesGlobal Ecology and Conservation, 2023
Climate change is predicted to affect species distribution worldwide. Most of the methods used to evaluate such impact so far assume that species respond to the environmental gradients in a uniform way along their distribution range.
Séverin Biaou   +6 more
doaj   +1 more source

Long-term isolation of European steppe outposts boosts the biome’s conservation value

open access: yesNature Communications, 2020
Europe hosts isolated remnants of the steppe belt that once covered much of Eurasia. Here the authors combine genomic data and ecological niche modelling on three plant and three insect species to show evolution independent of the zonal steppe and high ...
Philipp Kirschner   +12 more
doaj   +1 more source

Linking ecological niche, community ecology and biogeography: insights from a mechanistic niche model

open access: yesJournal of Biogeography, 2012
AbstractAimWe present a mechanistic niche model that integrates the demography of competing plant species in a metabolic, stochastic framework. In order to explore the model's ability to generate multiple species and community patterns, we assessed trait composition, richness gradients and spatial distributions of species ranges and abundances of ...
Cabral, Juliano Sarmento, Kreft, Holger
openaire   +2 more sources

Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex

open access: yesBMC Evolutionary Biology, 2017
Background The classification of closely related plants is not straightforward. These morphologically similar taxa frequently maintain their inter-hybridization potential and share ancestral polymorphisms as a consequence of their recent divergence ...
Ana Lúcia A. Segatto   +3 more
doaj   +1 more source

Interspecific hybridization explains rapid gorget colour divergence in Heliodoxa hummingbirds (Aves: Trochilidae)

open access: yesRoyal Society Open Science, 2023
Hybridization is a known source of morphological, functional and communicative signal novelty in many organisms. Although diverse mechanisms of established novel ornamentation have been identified in natural populations, we lack an understanding of ...
Chad M. Eliason   +8 more
doaj   +1 more source

Geographic distribution of phlebotomine sandfly species (Diptera: Psychodidae) in Central-West Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2015
This study updates the geographic distributions of phlebotomine species in Central-West Brazil and analyses the climatic factors associated with their occurrence.
Paulo Silva de Almeida   +7 more
doaj   +1 more source

Ecological niche modeling of the genus Papio

open access: yesAmerican Journal of Physical Anthropology, 2018
AbstractObjectiveEcological niche modeling (ENM) has been used to assess how abiotic variables influence species distributions and diversity. Baboons are broadly distributed throughout Africa, yet the degree of climatic specialization is largely unexplored for individual taxa. Also, the influence of climate on baboon phylogenetic divergence is unknown.
Amanda J. Fuchs   +2 more
openaire   +3 more sources

Regional Variation Exaggerates Ecological Divergence in Niche Models [PDF]

open access: yesSystematic Biology, 2010
Traditionally, the goal of systematics has been to produce classifications that are both strongly supported and biologically meaningful. In recent years several authors have advocated complementing phylogenetic analyses with measures of another form of evolutionary change, ecological divergence. These analyses frequently rely on ecological niche models
openaire   +2 more sources

Eltonian Niche Modelling: Applying Joint Hierarchical Niche Models to Ecological Networks

open access: yesEcology Letters
ABSTRACT There is currently a dichotomy in the modelling of Grinnellian and Eltonian niches. Despite similar underlying data, Grinnellian niches are modelled with species‐distribution models (SDMs), whereas Eltonian niches are modelled with ecological‐network analysis, mainly because the sparsity of species‐interaction data prevents ...
D. Matthias Dehling   +2 more
openaire   +1 more source

Ecologic Niche Modeling of Blastomyces dermatitidis in Wisconsin

open access: yesPLoS ONE, 2008
Blastomycosis is a potentially fatal mycosis that is acquired by inhaling infectious spores of Blastomyces dermatitidis present in the environment. The ecology of this pathogen is poorly understood, in part because it has been extremely difficult to identify the niche(s) it occupies based on culture isolation of the organism from environmental samples ...
Reed, Kurt D.   +3 more
openaire   +5 more sources

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