Results 41 to 50 of about 6,846,802 (336)

Relative species abundance of replicator dynamics with sparse interactions [PDF]

open access: yes, 2016
A theory of relative species abundance on sparsely-connected networks is presented by investigating the replicator dynamics with symmetric interactions.
69378   +5 more
core   +2 more sources

Plant species abundance and phylogeny explain the structure of recruitment networks.

open access: yesNew Phytologist, 2019
Established plants can affect the recruitment of young plants, filtering out some and allowing the recruitment of others, with profound effects on plant community dynamics. Recruitment networks (RNs) depict which species recruit under which others.
J. Alcántara, J. Garrido, P. Rey
semanticscholar   +1 more source

Species richness, abundance and phenology of fungal fruit bodies over 21 years in a Swiss forest plot [PDF]

open access: yes, 2001
Fungal fruit bodies were surveyed on a plot area of 1500 m2 from 1975¿99 (excluding 1980¿83) in the fungal reserve La Chaneaz in western Switzerland. Fruit bodies were identified and counted on a weekly basis.
Ayer, F., Egli, S., Straatsma, G.
core   +3 more sources

Butterflies of the high altitude Atacama Desert: habitat use and conservation

open access: yesFrontiers in Genetics, 2014
The butterfly fauna of the high-altitude desert of Northern Chile, though depauperate, shows high endemism, is poorly known and is of considerable conservation concern.
Emma eDespland
doaj   +1 more source

Aridity preferences alter the relative importance of abiotic and biotic drivers on plant species abundance in global drylands

open access: yesJournal of Ecology, 2018
Disentangling the interplay between species‐specific environmental preferences and micro‐ and macroscale determinants of species abundance within plant communities remains challenging.
M. Berdugo   +5 more
semanticscholar   +1 more source

Neutral Theory and Relative Species Abundance in Ecology [PDF]

open access: yes, 2003
The theory of island biogeography[1] asserts that an island or a local community approaches an equilibrium species richness as a result of the interplay between the immigration of species from the much larger metacommunity source area and local ...
Banavar, Jayanth R.   +3 more
core   +1 more source

Road Zone Effects in Small-Mammal Communities

open access: yesEcology and Society, 2009
Our study focused on the putative effects of roads on small-mammal communities in a high desert region of southern Utah. Specifically, we tested whether or not roads create adjacent zones characterized by lower small- mammal densities, abundance, and ...
John A. Bissonette, Silvia A. Rosa
doaj   +1 more source

Trait means or variance—What determines plant species' local and regional occurrence in fragmented dry grasslands?

open access: yesEcology and Evolution, 2021
One of the few laws in ecology is that communities consist of few common and many rare taxa. Functional traits may help to identify the underlying mechanisms of this community pattern, since they correlate with different niche dimensions.
Kolja Bergholz   +4 more
doaj   +1 more source

Understory epiphytic pteridophytes along altitudinal gradients on opposite slopes in the Atlantic Forest

open access: yesRodriguésia, 2023
Gradual climatic changes caused by mountains’ altitudinal variation promote alterations in the structure of ecological communities. Environmental changes are also expected according to the slope’s position in relation to the sea.
Thiago Vieira Costa   +2 more
doaj   +1 more source

Fragmentation and insects: theory and application to calcareous grasslands [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2005
Habitat loss poses the greatest threat to the long-term survival of species on earth and has three major components: straightforward destruction of habitat, increasing fragmentation and deterioration of habitat quality. Habitat fragmentation, i.e.
Baguette M., Polus E., Vandewoestijne S.
doaj  

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