7 documents found, page 1 of 1
Pervasive gaps in Amazonian ecological research
Carvalho, Raquel L.; Resende, Angelica F.; Barlow, Jos; França, Filipe M.; Moura, Mario R.; Maciel, Rafaella; Alves-Martins, Fernanda; Shutt, JackBiodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain underst...
Nutrient enrichment is related to two facets of beta diversity for stream inver...
Bini, Luis Mauricio; Landeiro, Victor Lemes; Padial, Andréandrian; Siqueira, Tadeu [UNESP]; Heino, JaniMade available in DSpace on 2022-04-29T07:17:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01; Beta diversity, the spatial or temporal variability of species composition, is a key concept in community ecology. However, our ability to predict the relative importance of the main drivers of beta diversity (e.g., environmental heterogeneity, dispersal limitation, and environmental productivity) remai...
A comparative analysis reveals weak relationships between ecological factors an...
Heino, Jani; Melo, Adriano Sanches; Bini, Luis Mauricio; Altermatt, Florian; Al-Shami, Salman Abdo; Angeler, David G.; Bonada, Núria; Brand, CeciliaThe hypotheses that beta diversity should increase with decreasing latitude and increase with spatial extent of a region have rarely been tested based on a comparative analysis of multiple datasets, and no such study has focused on stream insects. We first assessed how well variability in beta diversity of stream insect metacommunities is predicted by insect group, latitude, spatial extent, altitudinal range, a...
Species richness and distribution of blackflies (Diptera: Simuliidae) in the Ch...
Landeiro, Victor Lemes; Pepinelli, Mateus; Hamada, NeusaTaxonomically, blackflies (Simuliidae) are among the best-known aquatic insects in Brazil. However, information on their distribution is lacking for many regions. We sampled simuliids in 50 streams in the Chapada Diamantina region, State of Bahia, located in three distinct geographical areas, 20 at Lençóis, 18 at Mucugê, and 12 at Rio de Contas. We analyzed simuliid species richness and distribution in the Chap...
The geometry of spatial analyses: Implications for conservation biologists
Landeiro, Victor Lemes; Magnusson, William ErnestMost conservation biology is about the management of space and therefore requires spatial analyses. However, recent debates in the literature have focused on a limited range of issues related to spatial analyses that are not always of primary interest to conservation biologists, especially autocorrelation and spatial confounding. Explanations of how these analyses work, and what they do, are permeated with math...
Compositional uniqueness of diatoms and insects in subtropical streams is weakl...
Castro, Emanuela; Siqueira, Tadeu [UNESP]; Melo, Adriano Sanches; Bini, Luis Mauricio; Landeiro, Victor Lemes; Schneck, FabianaMade available in DSpace on 2020-12-12T00:56:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Some local communities contribute more to beta diversity than others, which has been known as composit...
Main predictors of periphyton species richness depend on adherence strategy and...
Algarte, Vanessa Majewski; Siqueira, Tadeu [UNESP]; Landeiro, Victor Lemes; Rodrigues, Liliana; Bonecker, Claudia Costa; Rodrigues, Luzia CleideMade available in DSpace on 2018-12-11T16:48:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-07-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Periphytic algae are important components of aquatic ecosystems. However, the factors driving periphyton species richness variation remain largely unexplored. Here, ...