Results 21 to 30 of about 418,792 (249)
Revealing the mechanisms governing the complex community assembly over space and time is a central issue in ecology. Null models have been developed to quantitatively disentangle the relative importance of deterministic vs.
Kai Ma, Qichao Tu, Qichao Tu
doaj +1 more source
Several studies on concordance between macrophyte and macroinvertebrate communities were carried out for decades while any investigation on co-occurrence of single pair of taxa of these two groups was never addressed.
Lorenzo Traversetti +3 more
doaj +1 more source
Hyper abundant mesopredators and bird extinction in an Atlantic forest island
Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil ...
Mauro Galetti +7 more
doaj +1 more source
Community structure of invertebrate fauna in Central Chilean Rivers
Aim River systems of Central Chile are short, steep and fast flowing. They are characterized by discharge regimes dominated by rainfall and snowmelt. Invertebrate fauna is highly endemic.
Patricio De los Ríos +4 more
doaj +1 more source
Size overlap in intertidal decapod communities along the chilean coast
The intertidal crustaceans on the Chilean coast are characterized by high diversity and niche specialization. The present study applied a size overlap null model for intertidal decapod communities at four different sites on the Chilean coast. The results
Patricio De los Ríos-Escalante +4 more
doaj +1 more source
Reptiles live in a range of different habitats from tropical forests to temperate zones where the climate may change on seasonal or a daily basis. The thermal environment is a major determinant of how efficiently they can achieve optimum or preferred ...
Ana Vujović +2 more
doaj +1 more source
Patterns in diurnal co-occurrence in an assemblage of hoverflies (Diptera: Syrphidae)
In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site in northern Italy in order to determine whether there are patterns in diurnal co-occurrence. We adopted a null model approach and calculated two co-occurrence
Manuela D'AMEN +3 more
doaj +1 more source
Functional volumes, niche packing and species richness: biogeographic legacies in the Congo Basin [PDF]
Understanding the determinants of species coexistence in complex and species-rich communities is a fundamental goal of ecology. Patterns of species coexistence depend on how biotic interactions and environmental filtering act over ecological and ...
Frederik Van de Perre +6 more
doaj +1 more source
Can fish species co-occurrence patterns be predicted by their trait dissimilarities?
Trait-based analyses have been successful in determining and predicting species association outcomes in diverse communities. Most studies have limited the scope of this approach to the biotic responses of a small number of species or geographical regions.
Ruben D. Cordero, Donald A. Jackson
doaj +1 more source
A simple null model predicts the island rule [PDF]
Abstract The island rule is a putative pattern in island evolution, where small species become larger on islands and large species become smaller. Despite decades of study, a mechanistic explanation for why some taxonomic groups obey the island rule, while others do not, has yet to be identified.
Matt Biddick, Kevin C. Burns
openaire +2 more sources

