The Orchid Bee Communities in different phytophysiognomies in the Atlantic Forest: from lowland to montane rainforests

Aguiar, Willian Moura de; Medeiros, Renata Lee dos Santos; Aguiar, Cândida Maria Lima; Borges, Isaura Gabriela Mendonça

doi:10.13102/sociobiology.v64i2.1348

Cited by 9 publications

(3 citation statements)

References 42 publications

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“…This result reinforces the pattern of reduced richness with increasing elevation for native bees, as observed in several countries and biogeographic regions (e.g. Classen et al, 2015;Dec & Santos, 2019;Hoiss et al, 2012;Medeiros et al, 2017;Nemésio, 2008;Perillo et al, 2017;Pinto et al, 2019). The pattern of reduction in insect species richness is often associated with the climatic variation and changes in vegetation structure that occur with increasing elevation, which work as environmental filters (Castro et al, 2020;Nunes et al, 2016).…”

Section: Discussionsupporting

confidence: 85%

Distribution patterns of orchid bees in xeric and mesic habitats on a tropical mountaintop

Freitas

Novais

Júnior

et al. 2023

Insect Conserv Diversity

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Most studies evaluating insect communities along climatic gradients in mountain regions have overlooked the relevance of the contrasting effects of xeric and mesic habitats on species distribution and richness. Mesic zones in xeric ecosystems can provide more favorable conditions for the maintenance of some insects, including orchid bees (Apidae, Euglossini), which are known for their high species diversity in humid tropical forests. For the first time, we sought to understand the distribution of Euglossini in xeric and mesic habitats during dry and wet seasons along an elevational gradient in Espinhaço mountains, southeastern Brazil. The study collected 4873 orchid bees from three genera and 14 species. During the wet season, bee richness decreased with elevation in both xeric and mesic habitats. However, during the dry season, there was an increase in both bee richness and abundance at intermediate elevations. In the dry season, lower bee richness and abundance were recorded in xeric habitats compared with mesic habitats. Bee richness and abundance did not differ between the dry and wet seasons for mesic habitats, while lower richness and abundance were recorded in the dry season for xeric habitats. Species composition remained unchanged across habitats, and species turnover was identified as the primary driver of β‐diversity among elevations and seasons. Orchid bees require high temperatures, but they cannot tolerate water stress in xeric habitats during the dry season. This highlights the importance of mesic habitats for maintaining these pollinators, which are essential for ecosystems in savanna and mountainous regions.

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Section: Discussionsupporting

confidence: 85%

Distribution patterns of orchid bees in xeric and mesic habitats on a tropical mountaintop

Freitas

Novais

Júnior

et al. 2023

Insect Conserv Diversity

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“…cordata and El. nigrita are indicators of disturbed forest in this study, as stressed by Ramalho et al (2009) and Aguiar and Ganglianone (2012), despite their tolerance to disturbed forest be evident (Santos & Sofia, 2002;Aguiar & Ganglianone, 2012;Nemésio, 2013;Giangarelli et al, 2015;Mateus et al, 2015;Ferronato et al, 2017;Medeiros et al, 2017). This leads us to the question: Do the different degrees of regeneration in continuous micro-environments not change the community of orchid bees or change to the point that negatively affect the community in the conserved sites of the primary forest?…”

Section: Discussionmentioning

confidence: 67%

Continuous Micro-Environments Associated Orchid Bees Benefit from an Atlantic Forest Remnant, Paraná State, Brazil

et al. 2019

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The fragmentation and habitat loss are the main causes of pollinators decline worldwide, however very little is known about the composition and distribution of neotropical pollinators along continuous micro-environments. To fill this gap, we carried out samplings of Euglossini bees in a continuous area of forest with micro-environments of primary (remnant) and secondary (regeneration) forest of Atlantic Forest. We evaluated the differences in the composition and uniformity of orchid bees in different micro-environments, in order to characterize the responses of the local environmental changes in the attraction of bees to chemical traps. Our results indicated that the composition and uniformity were similar between the two forest fragments studied here, although there are greater abundance of some species by micro-environments. We conclude that the characteristics of the sites in a continuous environment with primary and secondary forest do not seem to have an effect on the composition of the Euglossini fauna, and that the chemical substances are complementary in the attractiveness of the orchid bee males. Thus, our findings suggest that micro-environments in a continuous matrix near forest remnants can help to promote the reintegration of the orchid bee communities and contribute to the conservation of areas in process of forest regeneration.

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“…Euglossa calycina(Faria & Melo 2012).O material examinado porFaria & Melo (2012) mostra registros para apenas cinco localidades na Mata Atlântica: Itamaraju, Porto Seguro e Prado (BA), e Conceição da Barra e Linhares (ES). Um único registro diferente foi realizado recentemente porAguiar et al, (2017) na APA de Pratigi, também na Bahia, mas um pouco mais ao norte.Instituto Chico Mendes de Conservação da Biodiversidade -ICMBio Processo de Avaliação do Risco de Extinção da Fauna Brasileira…”

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Ficha de Euglossa botocuda

Aguiar¹,

Brant²,

Blochtein³

et al. 2023

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Categoria: Quase Ameaçada (NT) Última avaliação: 09/07/2021 (ajustada em 2022) Ano da publicação: 07/06/2023Euglossa botocuda é endêmica do Brasil, registrada no norte do Espírito Santo e sul da Bahia, associada ao ambiente florestal da Mata Atlântica. Sua extensão de ocorrência (EOO) foi calculada em aproximadamente 23.000 km². Estima-se declínio populacional pontualmente em parte de sua distribuição e que o restante esteja severamente fragmentada. A área de distribuição da espécie é fortemente afetada pela alteração da paisagem natural promovida, sobretudo, pela expansão urbana e das fronteiras agrícola e pecuária. Portanto, por aproximar-se de Vulnerável (VU) pelo critério B1ab(iii), Euglossa botocuda foi categorizada como Quase Ameaçada (NT).

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The Orchid Bee Communities in different phytophysiognomies in the Atlantic Forest: from lowland to montane rainforests

Cited by 9 publications

References 42 publications

Distribution patterns of orchid bees in xeric and mesic habitats on a tropical mountaintop

Distribution patterns of orchid bees in xeric and mesic habitats on a tropical mountaintop

Continuous Micro-Environments Associated Orchid Bees Benefit from an Atlantic Forest Remnant, Paraná State, Brazil

Ficha de Euglossa botocuda

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