Male Orchid Bees (Hymenoptera: Apidae: Euglossini) in Canopy and Understory of Amazon Várzea Floodplain Forest. I. Microclimatic, Seasonal and Faunal Aspects

Vilhena, Patricia dos Santos

doi:10.13102/sociobiology.v64i2.1232

Cited by 10 publications

(4 citation statements)

References 42 publications

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“…The uniformity and dominance indexes reflected differences in species abundance, since that a single dominant species (Eg. cordata) was represented by many individuals in the assemblage, as reported in other Euglossini assemblages (Alvarenga et al, 2007;Aguiar & Gaglianone, 2008;Rocha-Filho & Garófalo, 2013;Silveira et al, 2015;Vilhena et al, 2017). This study reinforces the idea of low species richness of orchid bees in xerophilous Caatinga vegetation.…”

Section: Discussionsupporting

confidence: 88%

Orchid Bees (Hymenoptera: Apidae: Euglossini) in Seasonally Dry Tropical Forest (Caatinga) in Brazil

Carneiro

Aguiar²,

Aguiar

et al. 2018

Sociobiology

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Euglossini bees are important Neotropical pollinators, but there is a lack in the knowledge about this fauna in dry tropical environments. The aims of this study were to evaluate the richness and abundance of euglossine bees in two fragments of seasonally dry tropical forest (Caatinga), as well as to assess the distribution of euglossine species richness in the Caatinga environment. Males were collected along 12 consecutive months, using traps with aromatic baits. The species richness (S=5) was lower than in rainforests and savannas. Euglossa cordata (L.) was the dominant species in the assemblage, representing 70% of the individuals. The highest abundance occurred in the rainy season. Euglossini fauna presents low local species richness in Caatinga areas, however the beta diversity is higher, since assemblages in different habitats have differences in species composition.

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Section: Discussionsupporting

confidence: 88%

Orchid Bees (Hymenoptera: Apidae: Euglossini) in Seasonally Dry Tropical Forest (Caatinga) in Brazil

Carneiro

Aguiar²,

Aguiar

et al. 2018

Sociobiology

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“…El análisis de correspondencia canónica para las especies de abejas euglossinas en relación con las variables climáticas de humedad y temperatura, expone que estás fueron determinantes para la distribución de las abejas, coincidiendo con Andrade-Silva et al (2012). Según Vilhena et al (2017), los machos de la tribu euglossini se muestran más activos cuando la temperatura oscila entre 24.5 °C a 27 °C, y cuando la humedad relativa es superior al 100% podría ser adversa para abejas pequeñas como lo son las del género Euglossa que presentan una menor capacidad de termorregulación, ejemplificando este hecho, podemos decir que durante los muestreos al haber un aumento en la humedad relativa, y una baja temperatura, inmediatamente cesaba la actividad o el flujo de euglosinos, y en el instante en que la temperatura se regulaba volvían a acercarse a los cebos. De acuerdo con Machado et al ( 2018) la variable de humedad relativa puede explicar las diferencias en las comunidades.…”

Section: Resultados Y Discusiónunclassified

“…Las abejas colectadas se colocaron en viales con alcohol al 70%, para su posterior transporte al laboratorio, en donde se procesaron e identificaron con la clave taxonómica de Roubik & Hanson (2004). Adicional se tomaron datos de variables abióticas para ambas áreas de muestreo: temperatura (°C) y humedad relativa (%) (Machado et al, 2018;Vilhena et al, 2017). Los datos recopilados, fueron ordenados en una base de datos de Microsoft Excel 2016.…”

Section: Materials Y Métodosunclassified

Orchid bees as bioindicators of the state of conservation of a forest

Rojas

Vásquez²,

Murgas³

et al. 2022

Manglar

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Bioindicators are organisms that determine the environmental impact of an ecosystem and euglossine are used for responding to environmental changes, they are easy to observe, and their taxonomy is well known. The study's objective was to evaluate a forest's environmental quality through orchid bees as bioindicators. In this investigation, collections were made at the undergrowth level by means of "Bottle Traps" and manual pools by zigzag method, in which entomological networks were used; the bees will be attracted by chemical attractants such as eucalyptus oil, the essence of eugenol and vanilla essence. We obtained a relatively high abundance with capture of 1024 individuals, and a richness of 38 species, the genus that dominated the study was the genus Euglossa with 89.5%, followed by the genus Eulaema with 9.6% and the genus Eufriesea with just 0.8 %, for the genus Exaerete that it is not possible to capture individuals, The completeness curve for the general sampling carried out allows us to observe representativeness of 99%. In conclusion, despite anthropic actions, the environmental quality in Cerro Llorón is quite stable because we found a very high abundance and species richness.

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“…This indicates that, despite the proximity of the sampling points to streams, the riparian fragments were more open than the primary terra-firme forests. These variables influence the activity of insects in general (Marques 2012), and of orchid bees in particular (Nemésio and Vasconcelos 2013;Vilhena et al 2017). However, the environmental differences between the forest types were not enough to significantly influence the structure of the respective bee assemblages.…”

Section: Discussionmentioning

confidence: 99%

Orchid bees in riparian and terra-firme forest fragments in an urban matrix in southwestern Brazilian Amazonia

2021

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Riparian forests are important ecosystems that support an enormous biodiversity in Brazil. Despite being protected under Brazilian legislation, these forests suffer great impact from the fragmentation of habitats. Orchid bees are a key group of pollinators in the Neotropical region, yet few data are available on the assamblage structure of these bees in riparian forests. We evaluated the role of fragments of riparian and terra-firme forest on the conservation and maintenance of orchid bees in an urban landscape in the southwestern Amazon basin. Specifically, we evaluated whether bee assemblages in riparian and terra-firme forests differed significantly in abundance, species richness and composition. We also evaluated whether species richness and abundance of bees vary with the size of the forest fragment. Male bees were attracted using odoriferous baits and collected with entomological nets in 10 forest fragments. There was no significant difference between riparian and terra-firme fragments in species abundance, richness and composition, but there was a positive correlation between fragment size and species richness and abundance. Our results suggest that, in an urban landscape, the remaining riparian and terra-firme forest fragments still could maintain 62.7% of the orchid bee species known to occur in the region, reinforcing the conservation value of these forest remnants. Our findings indicate that these fragments provide a potentially important habitat for the maintenance of local bee populations in the landscape.

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Male Orchid Bees (Hymenoptera: Apidae: Euglossini) in Canopy and Understory of Amazon Várzea Floodplain Forest. I. Microclimatic, Seasonal and Faunal Aspects

Cited by 10 publications

References 42 publications

Orchid Bees (Hymenoptera: Apidae: Euglossini) in Seasonally Dry Tropical Forest (Caatinga) in Brazil

Orchid Bees (Hymenoptera: Apidae: Euglossini) in Seasonally Dry Tropical Forest (Caatinga) in Brazil

Orchid bees as bioindicators of the state of conservation of a forest

Orchid bees in riparian and terra-firme forest fragments in an urban matrix in southwestern Brazilian Amazonia

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