Results 141 to 150 of about 1,063 (165)

The Ecological Basis for Biogeographic Classification: an Example in Orchid Bees (Apidae: Euglossini)

Neotropical Entomology, 2012
Biogeography has been difficult to apply as a methodological approach because organismic biology is incomplete at levels where the process of formulating comparisons and analogies is complex. The study of insect biogeography became necessary because insects possess numerous evolutionary traits and play an important role as pollinators.
A, Parra-H, G, Nates-Parra
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Long-term ecology of euglossine orchid-bees (Apidae: Euglossini) in Panama

Oecologia, 1987
Abundance patterns during 6-7 years and orchid visitation were determined for 51 species of the 57 local euglossine bees. Male bees were counted at 3 chemical attractants presented in the same manner each month. Sites were separated by 75 km but included wet Atlantic forest at 500 m elevation, moist forest at 180 m near Barro Colorado Island, and cloud
D W, Roubik, J D, Ackerman
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Function of Fragrances Collected by Euglossini Males (Hymenoptera: Apidae)

Entomologia Generalis, 2000
A possible answer is offered, on the basis of one occasional observation, to the puzzle of why males [MM] of Euglossini bees collect fragrances. The suggested answer is: to attract initially MM and later females [FF]. Such behavior is as follows: the fragrance collected by Euglossini MM is stored in their hind tibiae, where it may be altered and/or ...
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Sociality in Euglossa (Euglossa) viridissima Friese (Hymenoptera, Apidae, Euglossini)

Insectes Sociaux, 2008
Euglossa viridissima is an orchid bee that forms both solitary and multiple female nests, making it a suitable species for the study of factors leading to diverse degrees of sociality in Euglossines. We conducted observations in eight reused nests (where a first generation of bees had been produced) kept in artificial boxes from the Yucatan Peninsula ...
M. E. Cocom Pech, W. de J. May-Itzá, L. A. Medina Medina, J. J. G. Quezada-Euán   +3 more
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Sex Ratio and Nest Observations of Euglossa hyacinthina (Hymenoptera: Apidae: Euglossini)

Journal of the Kansas Entomological Society, 2007
Euglossa is the largest genus of orchid bees (Hymenoptera: Apidae: Euglossini), with 103 described species from northern Mexico to Paraguay and northern Argentina (Michener 2000; Roubik and Hanson 2004). For many species of these colorful, large-bodied insects females have not been identified.
Capaldi, Elizabeth A., Flynn, Corey J., Wcislo, William T.   +2 more
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Priority areas for conservation of orchid bees (Apidae, Euglossini) in the Atlantic Forest

Journal of Insect Conservation, 2019
Given the decline of pollinators around the world, preserving these animals has become a priority. This is especially urgent in threatened areas that concentrate high biodiversity such as the Atlantic forest (AF) in South America. Orchid bees are among the most important pollinators in the AF and are considered as good biological indicators of ...
Elder Assis Miranda, Antônio Freire Carvalho, Jamile de Jesus Gomes-Miranda, Cássio Ribeiro de Souza, Marco Antonio Costa   +4 more
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New insight into the phylogeny of the orchid bees (Apidae: Euglossini)

2018
Orchid bees occur across the American continent, from the southern United States to Paraguay and northern Argentina. There are 240 described species of orchid bees. The phylogeny of these bees has been studied by several researchers. In most cases, phylogenetic trees with different topologies have been introduced, because the tree topology of the ...
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Population genetic structure of orchid bees (Euglossini) in anthropogenically altered landscapes

Conservation Genetics, 2011
Habitat degradation and fragmentation are widespread phenomena in tropical regions. Negative effects on the biota are numerous, ranging from interruption of gene flow among populations, to the loss of genetic diversity within populations, to a decline in species richness over time. Orchid bees (Hymenoptera: Apidae: Euglossini) are of major conservation
Zimmermann, Yvonne, Schorkopf, Dirk-Louis, Moritz, R. F. A., Pemberton, Robert W., Quezada-Euan, J. J. G., Eltz, Thomas   +5 more
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ABELHAS EUGLOSSINI EM ÁREAS SOB DIFERENTES NÍVEIS DE URBANIZAÇÃO

Anais dos Seminários de Iniciação Científica
O crescimento acelerado das cidades contribui para a degradação do ambiente, devido a aspectos como a ocupação desordenada de áreas naturais, promovendo o desequilíbrio das comunidades biológicas (EMBRAPA, 2022), consequentemente alterando a paisagem e as interações ecológicas que normalmente ocorreriam nesses espaços (Liu et al., 2018). De modo geral,
null Eduarda Freitas da Silva, null Willian Moura de Aguiar   +1 more
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Vertical stratification in orchid bees (Apidae: Euglossini)?: a meta-analysis

Apidologie, 2022
Yostin Jesús Añino Ramos, Emilio Romero, Dumas Gálvez   +2 more
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