Assessing the effectiveness of protected areas for the conservation of ferns and lycophytes in the Brazilian state of Minas Gerais

Journal for Nature Conservation, Год журнала: 2019, Номер 53, С. 125775 - 125775

Опубликована: Ноя. 27, 2019

Язык: Английский

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Quantifying Tropical Plant Diversity Requires an Integrated Technological Approach

Trends in Ecology & Evolution, Год журнала: 2020, Номер 35(12), С. 1100 - 1109

Опубликована: Сен. 7, 2020

Язык: Английский

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The relative role of rivers, environmental heterogeneity and species traits in driving compositional changes in southeastern Amazonian bird assemblages

Biotropica, Год журнала: 2020, Номер 52(5), С. 946 - 962

Опубликована: Май 3, 2020

Abstract Amazonian rivers have been proposed to act as geographic barriers species dispersal, either driving allopatric speciation or defining current distribution limits. The strength of the barrier varies according species’ ecological characteristics and river's physical properties. Environmental heterogeneity may also drive compositional changes but has not well assessed in Amazonia. Aiming understand contributions riverine environmental shaping forest bird assemblages, we focus on Tapajós River. We investigate how spatial variation composition is related (Tapajós Jamanxim rivers), (distinct guilds), (canopy reflectance, soils, elevation). sampled birds through point‐counts mist nets both banks rivers. To test for relationships between data, used Mantel partial tests, NMDS, ANOVA + Tukey HSD. tests showed that clearest occurred across River, which seems unequally a significant guilds. River was associated with differences communities. Our results reinforce biogeographical boundary birds, while influences within interfluves. discuss combined influence geographical barriers, heterogeneity, distributions community complexity extrapolating patterns found other organisms. Portuguese available online material.

Язык: Английский

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Impacts of a large hydroelectric dam on the Madeira River (Brazil) on floodplain avifauna

Acta Amazonica, Год журнала: 2021, Номер 51(4), С. 298 - 310

Опубликована: Дек. 1, 2021

ABSTRACT Hydroelectric dams represent an important threat to seasonally flooded environments in the Amazon basin. We aimed evaluate how a dam Madeira River, one of largest tributaries Amazonas affected floodplain avifauna. Bird occurrence was recorded through simultaneous passive acoustic monitoring early successional vegetation and forest downstream from upstream sites impacted by permanent flooding after reservoir filling. Species were identified manual inspection semi-automated classification recordings. To assess similarity between sites, we used Landsat TM/ETM+ composite images before (2009-2011) (2016-2018) Downstream similar before, but not construction. Early already different 195 bird species. While species richness did differ composition differed significantly. Ten indicators upstream, four downstream. 31 Seven 24 specialist detected only upstream. found some characteristic find most tall forest. Predominantly carnivorous, insectivorous, nectarivorous appear have been replaced generalist widely distributed

Язык: Английский

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Small-scale environmental variations drive vegetation structure and diversity in Amazon riverine forests

Flora, Год журнала: 2021, Номер 283, С. 151916 - 151916

Опубликована: Авг. 11, 2021

Язык: Английский

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