The Orchid Bee Fauna (Hymenoptera: Apidae: Euglossini) of a Neotropical Savanna: an Efficient Protocol to Assess Bee Community and Diversity Along Elevational and Habitat Complexity Gradients

Viana, Thaís Andrade; Martins, Francisco Medeiros; Lourenço, A. P.

doi:10.1007/s13744-021-00899-7

Cited by 5 publications

(10 citation statements)

References 55 publications

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“…The present study reports the distribution and composition of bees of the tribe Euglossini in the second largest mountain range in South America, the Serra do Espinhaço, in southeastern Brazil. The results expand the knowledge of the distribution of euglossines found in other studies carried out in the same ecosystem (Antonini et al, 2016;Nemésio, 2016;Santos et al, 2020;Viana et al, 2021), incorporating sampling in mesic habitats along the elevational gradient.…”

Section: Discussionsupporting

confidence: 83%

“…nigrohirta, sampled by Nemésio (2005), both of which are seasonal and are seldom observed in studies. Additionally, we were unable to locate the species Exaerete dentata (Linnaeus, 1758), which was previously reported by Viana et al (2021) as a cleptoparasite of bees from the Eulaema Lepeletier and Eufriesea Cockerell genera (Nemésio & Silveira, 2006). Cleptoparasitic bees are also infrequently observed in studies (Nemésio & Silveira, 2006).…”

Section: Discussionmentioning

confidence: 64%

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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: 83%

Section: Discussionmentioning

confidence: 64%

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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“…En localidades de otros países con más tradición de estudios de abejas Euglossini como Costa Rica se han registrado entre 35 (Ramírez, 2019) (Allen et al, 2019). Brasil es posiblemente el país con más arraigo en la investigación de Euglossini; en múltiples localidades de Rio de Janeiro se han registrado entre 11 y 17 especies (Aguiar & Gaglianone, 2011), en Maranhao entre nueve (Rebélo & Cabral, 1997) y 14 (Silva, et al, 2009), y en la Mata Atlántica, nueve (Sofia, et al, 2004), 23 (Rocha & Garófalo, 2013), y 12 (Rocha et al, 2020, en tanto que en Mato Grosso, en el ecotono cerrado-selva, se han registrado 16 (Olivera-Junior et al, 2015), en la sabana 14 (Viana et al, 2021), en la catinga, cinco (Carneiro et al, 2018) y en bosques higrófilos, cinco especies (Castro et al, 2013). Así, la riqueza de 17 especies registrada en Arauca es notable y comparable a ambientes estructuralmente más complejos (por ejemplo, los bosques), a pesar de ser un ecosistema predominantemente compuesto de sabanas con fragmentos discretos de bosques donde las euglosinas pueden encontrar los recursos que las orquídeas y otras especies vegetales les proveen, ya que probablemente en la sabana la oferta es limitada.…”

Section: Resultsunclassified

“…Además, Faria & Gonҫalves (2013), en la costa oriental de Brasil, y Castro et al (2013) plantearon que la precipitación incide en la mayor oferta de recursos florales, lo que contribuye a determinar la riqueza de especies de abejas y propicia ensamblajes más diversos en zonas de pastos mezcladas con bosques. Sin embargo, es amplio el número de investigaciones que postulan que las euglosinas son más diversas en ambientes en buen estado de conservación (Knoll & Penatti, 2012;Villaça et al, 2009) y la oferta de recursos como polen, néctar, y materiales para la construcción de nidos (Viana et al, 2021). Esta tendencia de mayor diversidad de la tribu Euglossini en ambientes bien preservados ha llevado a que este taxón sea considerado como bioindicador de la calidad del hábitat (Rocha-Filho & Garófalo, 2013;Parra-H et al, 2016;Allen, 2019).…”

Section: Discussionunclassified

Variación estacional de abejas euglosinas (Apidae: Euglossini) en el norte de la Orinoquia colombiana

Pérez-Buitrago¹,

Mojica-Candela²,

Agudelo-Martínez³

2022

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Las abejas euglosinas son importantes polinizadores de múltiples especies de plantas neotropicales, pero en muchas localidades de Colombia existe poca información sobre su presencia. El objetivo de este estudio fue documentar el cambio en la riqueza y abundancia de especies de las abejas de las orquídeas (Apinae: Euglossini) durante las temporadas seca y lluviosa en tres ambientes (bosque de galería, sabana inundable, y un sendero con vegetación secundaria) del departamento de Arauca, Colombia. Los especímenes se recolectaron por captura directa usando cebos libres y la instalación de 32 trampas de botella y cuatro tipos de cebo. La intensidad diaria del muestreo fue de siete horas (7:00-14:00) durante 10 días consecutivos en cada temporada climática. Se recolectaron 367 especímenes pertenecientes a tres géneros y 17 especies que representaron entre el 81,1 y el 91,9 % de las especies esperadas en la zona de estudio. La sabana inundable y el sendero ecológico fueron los ambientes con mayor riqueza de especies y abundancia, comparados con el bosque de galería. Durante la temporada lluviosa se registraron 16 especies (ocho exclusivas) y en la seca, nueve especies (una exclusiva). Se registró una mayor riqueza y abundancia de especies durante la época lluviosa. Este es el primer estudio de abejas euglosinas en las sabanas del departamento de Arauca; se reporta una diversidad comparable a otras localidades de Colombia y otros países neotropicales.

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“…Previous studies have found various factors that can influence orchid distribution across a landscape, including pollination specificity and mycorrhizal association [31]. As both factors are also found to correlate with altitude [53][54][55][56], we used this as proxy variables within the SDMs. Alongside altitudinal data, we also retrieved climatic variables relating to precipitation and temperature from the World Clim dataset (worldclim.org, 2020).…”

Section: Species Distribution Models (Sdms) Of Conservation Priority Speciesmentioning

confidence: 99%

Exploring Effective Conservation of Charismatic Flora: Orchids in Armenia as a Case Study

2021

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Plants are the bedrock of life on Earth but are increasingly threatened with extinction. The most cost-effective way of conserving plant diversity is through Protected Areas (PAs). However, the locality, size, and management of PAs are crucial for effectively maintaining diversity and have been criticized as currently inadequate. Using Armenia as our study site and orchids as our study taxa, we sought to (1) identify spatial patterns of orchid diversity hotspots and corresponding PA network sites; (2) examine if the current PA network is effective at capturing orchid species richness and diversity and (3) explore the relationship between the range of area suitability of species and level of protection. We used data collected from herbarium, field visits and GBIF occurrence records. Using freely available mapping software, we created heatmaps of observations and species richness. We compared PA sites based on the number of species (species richness) and diversity (Shannon–Weiner Index). Species range was developed using the MaxEnt model and a correlation analysis was performed against the proportion of the range within PA. We found that 57% of PA sites have a representation of at least one species of orchid, but some threatened species are not presented within any PA site. The Tavush and Syunik province not only held the highest species richness (>10 species), but the PA network within also held high orchid diversity (2.5 diversity index value for Dilijan National Park). We did not find a significant relationship between the range of area suitability for orchids and protection; however, all our target species had less than 30% of their range under protection. Our study highlights important challenges related to the limitations of available data, and we discuss these implications towards effective conservation outcomes for orchids for the region.

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The Orchid Bee Fauna (Hymenoptera: Apidae: Euglossini) of a Neotropical Savanna: an Efficient Protocol to Assess Bee Community and Diversity Along Elevational and Habitat Complexity Gradients

Cited by 5 publications

References 55 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

Variación estacional de abejas euglosinas (Apidae: Euglossini) en el norte de la Orinoquia colombiana

Exploring Effective Conservation of Charismatic Flora: Orchids in Armenia as a Case Study

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