Keyword search (4,165 papers available)

"Khattar G" Authored Publications:

Title Authors PubMed ID
1 The biotic and abiotic contexts of ecological selection mediate the dominance of distinct dispersal strategies in competitive metacommunities Khattar G; Savary P; Peres-Neto PR; 38913058
BIOLOGY
2 Firefly (Coleoptera, Lampyridae) species from the Atlantic Forest hotspot, Brazil Vaz S; Mendes M; Khattar G; Macedo M; Ronquillo C; Zarzo-Arias A; Hortal J; Silveira L; 38327309
CONCORDIA
3 Reciprocal inhibition and competitive hierarchy cause negative biodiversity-ecosystem function relationships D' Andrea R; Khattar G; Koffel T; Frans VF; Bittleston LS; Cuellar-Gempeler C; 38193391
BIOLOGY
4 Variation in a Darwin Wasp (Hymenoptera: Ichneumonidae) Community along an Elevation Gradient in a Tropical Biodiversity Hotspot: Implications for Ecology and Conservation Flinte V; Pádua DG; Durand EM; Hodgin C; Khattar G; da Silveira LFL; Fernandes DRR; Sääksjärvi IE; Monteiro RF; Macedo MV; Mayhew PJ; 37999060
BIOLOGY
5 Global meta-analysis of urbanization stressors on insect abundance, richness, and traits Vaz S; Manes S; Khattar G; Mendes M; Silveira L; Mendes E; de Morais Rodrigues E; Gama-Maia D; Lorini ML; Macedo M; Paiva PC; 37543317
BIOLOGY

 

Title:The biotic and abiotic contexts of ecological selection mediate the dominance of distinct dispersal strategies in competitive metacommunities
Authors:Khattar GSavary PPeres-Neto PR
Link:https://pubmed.ncbi.nlm.nih.gov/38913058/
DOI:10.1098/rstb.2023.0132
Publication:Philosophical transactions of the Royal Society of London. Series B, Biological sciences
Keywords:competitionecological selectionseasonalityspatial autocorrelation
PMID:38913058 Category: Date Added:2024-06-24
Dept Affiliation: BIOLOGY
1 Laboratory of Community and Quantitative Ecology, Department of Biology, Concordia University , Montreal, Quebec H4B 1R6, Canada.

Description:

While the influence of dispersal on ecological selection is the subject of intense research, we still lack a thorough understanding of how ecological selection operates to favour distinct dispersal strategies in metacommunities. To address this issue, we developed a model framework in which species with distinct quantitative dispersal traits that govern the three stages of dispersal-departure, movement and settlement-compete under different ecological contexts. The model identified three primary dispersal strategies (referred to as nomadic, homebody and habitat-sorting) that consistently dominated metacommunities owing to the interplay of spatiotemporal environmental variation and different types of competitive interactions. We outlined the key characteristics of each strategy and formulated theoretical predictions regarding the abiotic and biotic conditions under which each strategy is more likely to prevail in metacommunities. By presenting our results as relationships between dispersal traits and well-known ecological gradients (e.g. seasonality), we were able to contrast our theoretical findings with previous empirical research. Our model demonstrates how landscape environmental characteristics and competitive interactions at the intra- and interspecific levels can interact to favour distinct multivariate and context-dependent dispersal strategies in metacommunities. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.





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