Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini)

Boff, Samuel; Alves-dos-Santos, Isabel

doi:10.3897/jhr.62.22834

Cited by 7 publications

(4 citation statements)

References 27 publications

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“…In this study, 23, 10, and 6 pollen types were observed in the nests of E. cordata, E. townsendi, and E. securigera, respectively, which was similar to that observed by Boff and Alves-dos-Santos (2018) in nests of E. cordata (20 pollen types), but less than that observed in nests of E. atroveneta (74) (Arriaga & Hernández, 1998), E. annectans (74) (Cortopassi-Laurino et al, 2009), E. viridissima, and E. dilemma (45) (Villanueva-Gutierrez et al, 2013). However, a smaller number of nests was assessed in the Sítio do Rangedor State Park, especially for E. securigera¸ for which only a single nest was obtained for the analysis.…”

Section: Discussionsupporting

confidence: 90%

Pollen Analysis of the Post-Emergence Residue of Euglossa Bees (Apidae: Euglossini) Nesting in an Urban Fragment

Pinto

Silva

Rêgo³

et al. 2019

Sociobiology

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Euglossini bees are considered pollinators of a wide variety of plants in the Neotropical region, but little is known about their floral preferences. In this study, we identified the botanical species used as pollen and nectar sources by three Euglossa species (Euglossa cordata, Euglossa townsendi, and Euglossa securigera) using pollen residue found in brood cells from trap nests installed in an urban fragment in São Luís, Maranhão, Brazil. In 14 analyzed Eg. cordata nests, 23 pollen types were observed, in 7 Eg. townsendi nests, 10 pollen types were observed, and in 1 nest of Eg. securigera, 6 morph types were identified. Solanum (Solanaceae), Zanthoxylum (Rutaceae), Mimosa pudica (Fabaceae), and Chamaecrista (Fabaceae) pollen types were common to all three bee species. Principal components analysis showed 83.04% variability on the first two axes, demonstrating substantial similarity among the samples. Solanum, Mimosa pudica, and Zanthoxylum were the principal components in the ranking. Larger diversity values (mean = 0.80) in some samples indicate that the species gathered resources in a heterogeneous manner; this resembles the findings of other studies of Euglossa. In general, the bees exhibited overlapping niches with regard to the most abundant pollens in the nests, but the females showed individual plasticity when gathering the floral resources.

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Section: Discussionsupporting

confidence: 90%

Pollen Analysis of the Post-Emergence Residue of Euglossa Bees (Apidae: Euglossini) Nesting in an Urban Fragment

Pinto

Silva

Rêgo³

et al. 2019

Sociobiology

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“…Vários estudos sobre a estrutura e hábitos de nidificação dos Euglossini demonstram que eles usam cavidades pré-existentes, tanto na natureza quanto em áreas urbanas [5][6][7]. Além disso, esses ninhos podem ser construídos em substratos aéreos (fixados em arbustos, folhas, galhos e estolões de bromélias), em ninhos abandonados por outros animais (por exemplo, vespas e cupins) e em cavidades subterrâneas [8,9].…”

Section: Introductionunclassified

Biologia de nidificação de Euglossa cordata (Apidae: Euglossini) em áreas abertas no Extremo Sul Baiano

Silva de Souza Filho,

Costa Prates,

Da Costa Pina

2024

Sci. Plena

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The genus Euglossa comprises a group of approximately 110 cataloged bee species found throughout the Neotropical region. Among these species, Euglossa cordata (Linnaeus, 1758) has a wide distribution in different environments. This research aimed to analyze aspects of the nesting biology of E. cordata in open areas near Atlantic Forest fragments in the Extreme South of Bahia, Brazil. Collections were carried out using PET bottle traps, a methodology commonly employed for capturing Meliponini but adapted for the first time in this study, presenting a low cost and good applicability for studies on Euglossa bees. Ten traps were randomly distributed in open environments at the Federal Institute of Bahia. Three nests of E. cordata were found, with a total of thirteen brood cells and six female emergences in traps 2 and 3. In all nests, the cells were constructed in a circular manner and arranged close to each other. The cells were built with resin and had a scalene trapezoid shape with variations in diameter and length. Studies on bees of the Euglossini tribe, popularly known as orchid bees, often focus on males collected using odor baits. Conversely, studies on females and nesting biology are scarce. Thus, methodologies that facilitate the capture of females and Euglossini nests are extremely relevant for enhancing our understanding of the group.

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“…Euglossine species can disperse between forest patches through these environments. intensity may provide resources (e.g., nesting sites) for euglossine bees through plants adapted to this environment (e.g., Bromeliaceae, Orchidaceae) Dressler, 1982;Boff and Alves-dos-Santos, 2018. Water (WT) Natural (rivers) and artificial (lakes) environments.…”

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The Interplay Between Thematic Resolution, Forest Cover, and Heterogeneity for Explaining Euglossini Bees Community in an Agricultural Landscape

et al. 2021

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Human activities have modified the landscape composition. The changes in the landscape structure can be evaluated by metrics, which are influenced, among other factors, by the number of cover classes used for the landscape classification (thematic resolution). In high thematic resolutions, landscape covers that can influence biological responses are identified and detailed. In low thematic resolutions, this detail level is lower because it aggregates different landscape covers in a few classes. However, how the thematic resolution influences our ability to understand landscape structure on biodiversity is poorly explored, particularly for pollinators. Here we asked how thematic resolution affects the explanatory power of landscape composition on explaining Euglossini bees (richness and abundance) within 15 landscapes composed mainly of coffee and pasture. To address this issue, we quantified the association between five attributes of the euglossine bee community and landscape composition: landscape cover classes (%) and landscape heterogeneity. Moreover, we also evaluated how the thematic resolution influences bee responses to landscape structure. We found a strong and positive influence of landscape heterogeneity in low thematic resolutions (i.e., few cover classes on maps) over the richness and rare species abundance. We also observed that- in addition to the forest cover in the landscape- the pasture cover (%) quantified in high thematic resolution positively influenced the total abundance and abundance of common and intermediate species. Our study highlights the importance of maintaining compositional heterogeneity for the orchid bee community in agroecosystems, and forest cover for the biological requirements and conservation of these pollinators. Moreover, the use of different thematic resolutions showed how specific types of landscape covers influence the euglossine community attributes. This can highlight the species preferences for habitats and landscape covers. Thus, we call the attention of landscape ecologists to the importance of the definition of thematic resolution, as our ability to quantify the association between biological responses and landscape structure may be influenced by the number of classes used when building thematic maps.

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Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini)

Cited by 7 publications

References 27 publications

Pollen Analysis of the Post-Emergence Residue of Euglossa Bees (Apidae: Euglossini) Nesting in an Urban Fragment

Pollen Analysis of the Post-Emergence Residue of Euglossa Bees (Apidae: Euglossini) Nesting in an Urban Fragment

Biologia de nidificação de Euglossa cordata (Apidae: Euglossini) em áreas abertas no Extremo Sul Baiano

The Interplay Between Thematic Resolution, Forest Cover, and Heterogeneity for Explaining Euglossini Bees Community in an Agricultural Landscape

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