Nest structure of a Euglossa sp. n. In a fruit of Theobroma subincanum from Ecuadorean Amazonas

Olesen, Jens M.

doi:10.1590/1809-43921988183330

Cited by 3 publications

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“…Although most species are considered solitary (Zucchi et al, 1969;Dressler, 1982;Kimsey, 1987;Michener, 2000;Cameron, 2004), the presence of more than one female in the nests of some species has suggested the occurrence of some kind of social organization in those nests (Dodson, 1966;Roberts and Dodson, 1967;Sakagami et al, 1967;Zucchi et al, 1969;Olesen, 1988;Eberhard, 1988;Otero, 1996). Studies on the nesting behavior of Euglossa cordata (Linnaeus) (Garófalo, 1985(Garófalo, , 1987(Garófalo, , 1992Augusto, 1993;Augusto and Garófalo, 1994), Euglossa atroveneta Dressler (Ramírez-Arriaga et al, 1996), Euglossa annectans Dressler (Garófalo et al, 1998), and Euglossa hyacinthina Dressler (Soucy et al, 2003) have shown that new nests are usually established by solitary females and that the occurrence of multifemale nests is the result of nest re-use by succeeding generations.…”

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confidence: 99%

Nesting biology and social structure of Euglossa (Euglossa) townsendi Cockerell (Hymenoptera, Apidae, Euglossini)

Augusto

Garófalo²

2004

Insect. Soc.

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The nesting behavior of the euglossine bee Euglossa townsendi was studied on the campus of the University of São Paulo-Ribeirão Preto, SP, Brazil, from January 1994 to December 1999, using artificial nesting substrate and observation boxes. Twenty-one nests were founded during the study period, with the highest frequencies of nesting occurring during the hot, wet season. Each nest was founded by a single female and, after the completion of the last cell, she spent most of her time in the nest. The males left the nest immediately after emergence and did not return. Some females left the nest within a few days of eclosing, while others stayed in their natal nests and began to reactivate them. Reactivations were performed by a single female, by one or more females in the presence of the mother, by more than one female in the absence of the mother, and by more than one female in the presence of females that participated in the prior reactivation. According to behavior, the females were classified as forager/egg-laying and egg-laying females. The oviposition by egg-laying females was always preceded by oophagy. All of the forager/egg-laying and egg-laying females that were dissected had been inseminated. The behavior displayed by egg-laying females is characteristic of brood parasitism and fits the parental parasitism hypothesis developed as an alternative pathway by which insect sociality could have arisen. The behaviors displayed by E. townsendi, together with those reported for Euglossa cordata, show that both species have bionomic traits that resemble the conditions suggested as precursors of the origin of eusociality.Research article 401 activities and dissected. Each spermatheca was squashed between a slide and a coverslip, and examined under a microscope. Statistical analyses were performed using Statistica 5.0 (StatSoft, Inc.). Throughout the text, all means are given ± SD.

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Section: Introductionmentioning

confidence: 99%

Nesting biology and social structure of Euglossa (Euglossa) townsendi Cockerell (Hymenoptera, Apidae, Euglossini)

Augusto

Garófalo²

2004

Insect. Soc.

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PHYLOGENY ANDBIOLOGY OFNEOTROPICALORCHIDBEES(EUGLOSSINI)

Cameron

2004

Annu. Rev. Entomol.

120

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Orchid bees (Euglossini), noted for their brilliant iridescence, are elusive pollinators throughout the American tropics. Males are especially important in the pollination of some orchids, from which they collect aromatic fragrances thought to play a role in territorial display and courtship. The tribe contains approximately 190 described species divided among five genera, distributed from Mexico to central Argentina. Relatively intense study of their biology in the 1960s through the mid-1980s shed light on their nesting biology, chemical ecology, and classification. Vigorous taxonomic research led to the naming of many new species, revisions, and checklists, but phylogenetic studies were scarce. In the two decades following the last comprehensive review, phylogenetic research has resulted in new hypotheses of generic relationships, and further examination of male display has led to additional interpretations. Females in natural and artificial nesting cavities have revealed social interactions and additional details of parasitism within the nest. This review emphasizes areas in need of more study, particularly phylogeny, phylogeography, chemosensory ecology, and comparative behavior, and highlights how historical context can guide future research.

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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

Vilhena¹

2017

Sociobiology

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Várzea floodplain forests are important ecosystems of the Amazon basin. Our goal was to verify whether orchid bee males have stratum preference in a forest with a dynamic understory. Traps were placed at 25 m and 1.5 m with aromatic scents to lure the bees. Data loggers were used to register temperature and relative humidity in both heights. Of 835 sampled males belonging to 28 species, 645 males from 23 species were collected at the understory. Temperature was 1.4º C higher at the canopy and relative humidity was 11.58% higher at the understory. Temperature, relative humidity, wind and tidal levels were the most important abiotic variables influencing mainly the canopy assemblage. The understory is a more stable environment, presenting good conditions to survival of the males. The species Euglossa cognata Moure, Eulaema meriana Olivier and Euglossa ignita Smith were closely related to strata and seasons.

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Nest structure of a Euglossa sp. n. In a fruit of Theobroma subincanum from Ecuadorean Amazonas

Cited by 3 publications

References 1 publication

Nesting biology and social structure of Euglossa (Euglossa) townsendi Cockerell (Hymenoptera, Apidae, Euglossini)

Nesting biology and social structure of Euglossa (Euglossa) townsendi Cockerell (Hymenoptera, Apidae, Euglossini)

PHYLOGENY ANDBIOLOGY OFNEOTROPICALORCHIDBEES(EUGLOSSINI)

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

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