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The biotic and abiotic contexts of ecological selection mediate the dominance of distinct dispersal strategies in competitive metacommunities

Author(s): Khattar G; Savary P; Peres-Neto PR;

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 t ...

Article GUID: 38913058


Firefly (Coleoptera, Lampyridae) species from the Atlantic Forest hotspot, Brazil

Author(s): Vaz S; Mendes M; Khattar G; Macedo M; Ronquillo C; Zarzo-Arias A; Hortal J; Silveira L;

Background: We compiled a database of firefly species records from the Atlantic Forest hotspot in Brazil and made it available at GBIF. Data were gathered from literature and from several key entomological collections, including: Coleção entomológica Prof. José Alfredo Pinheiro Dutra (DZRJ/UFRJ) and Coleção do Laboratório de Ecologia de Insetos from Unive ...

Article GUID: 38327309


Reciprocal inhibition and competitive hierarchy cause negative biodiversity-ecosystem function relationships

Author(s): D' Andrea R; Khattar G; Koffel T; Frans VF; Bittleston LS; Cuellar-Gempeler C;

The relationship between biodiversity and ecosystem function (BEF) captivates ecologists, but the factors responsible for the direction of this relationship remain unclear. While higher ecosystem functioning at higher biodiversity levels ('positive BEF') is not universal in nature, negative BEF relationships seem puzzlingly rare. Here, we develop ...

Article GUID: 38193391


Variation in a Darwin Wasp (Hymenoptera: Ichneumonidae) Community along an Elevation Gradient in a Tropical Biodiversity Hotspot: Implications for Ecology and Conservation

Author(s): Flinte V; Pádua DG; Durand EM; Hodgin C; Khattar G; da Silveira LFL; Fernandes DRR; Sääksjärvi IE; Monteiro RF; Macedo MV; Mayhew PJ;

Understanding how biodiversity varies from place to place is a fundamental goal of ecology and an important tool for halting biodiversity loss. Parasitic wasps (Hymenoptera) are a diverse and functionally important animal group, but spatial variation in their diversity is poorly understood. We su ...

Article GUID: 37999060


Global meta-analysis of urbanization stressors on insect abundance, richness, and traits

Author(s): 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;

Anthropic stressors are among the greatest concerns in nature conservation. Among these, deforestation and urban expansion are major drivers of habitat loss, which is a major threat to biodiversity. Insects, the largest and most abundant group of animals, are declining at alarming rates. However, ...

Article GUID: 37543317


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