Zobrazeno 1 - 10
of 23
pro vyhledávání: '"J J G Quezada-Euán"'
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Body size has frequently been discussed as related to reproductive success. Stingless bees show remarkable variation in body size among and within sexes and castes, but very little is known about the proximate causes and the consequences of such vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b17f7dcad10087b7f498e3439fb25091
Autor:
J. J. G. Quezada-Euán, Humberto Moo-Valle, W. de J. May-Itzá, D. Ruiz, E. Gutiérrez, T. Solís
Publikováno v:
Behavioral Ecology and Sociobiology. 70:871-879
The relative contributions of heritable and environmentally acquired components of colony odor towards individual recognition are scarcely known in social insects. Larval food may affect cuticular profiles which in turn may serve as cues in the proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d09e9fc54e3b65952cd83cf27a708330
https://doi.org/10.1007/s00265-016-2109-z
https://doi.org/10.1007/s00265-016-2109-z
Publikováno v:
Insectes Sociaux. 62:73-80
Isometric worker size variation has been found in various species of stingless bees but the adaptive value of this phenomenon is little understood. We studied intra-colony worker size variation in Melipona in relation to individual foraging preferenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::918b581947bb46616fb510e151195b25
https://doi.org/10.1007/s00040-014-0376-0
https://doi.org/10.1007/s00040-014-0376-0
Autor:
Robert J. Paxton, J. J. G. Quezada-Euán, L. A. Medina Medina, Salvador Medina, W. de J. May-Itzá
Publikováno v:
Insectes Sociaux. 61:183-190
Euglossines have long been regarded as largely solitary, though some species are known to exhibit social behavior. We studied the nesting behavior of Euglossa viridissima over an annual cycle, comparing sociality and offspring production across the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5203b10aade7cc49239eb72c00840ed9
https://doi.org/10.1007/s00040-014-0342-x
https://doi.org/10.1007/s00040-014-0342-x
Publikováno v:
Insectes Sociaux. 62:247-249
Defense castes are know from highly eusocial insects yet have rarely been described in social species with a small colony size. In nests of Euglossa viridissima, an orchid bee exhibiting primitively eusocial behavior, we recorded one subordinate fema
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a25b2eacdbe65ab44d8b3433f4b2338a
https://doi.org/10.1007/s00040-015-0397-3
https://doi.org/10.1007/s00040-015-0397-3
Autor:
F. G. Pech-May, W. de J. May-Itzá, Robert J. Paxton, Luis A. Medina-Medina, J. J. G. Quezada-Euán
Publikováno v:
Insectes Sociaux. 59:417-424
The production of male sexual offspring by social insect colonies is often strongly seasonal or resource-dependent. In stingless bees, males are produced in smaller numbers under conditions of low colony food reserves; whether such males are negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66f333e90c35617fb2556afdfec625e1
https://doi.org/10.1007/s00040-012-0236-8
https://doi.org/10.1007/s00040-012-0236-8
Autor:
Robert W. Pemberton, J. J. G. Quezada-Euán, D. L. P. Schorkopf, Robin F. A. Moritz, Thomas Eltz, Yvonne Zimmermann
Publikováno v:
Conservation Genetics. 12:1183-1194
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 declin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b122e4b7a6fccd4917202bc85108f43
https://doi.org/10.1007/s10592-011-0221-1
https://doi.org/10.1007/s10592-011-0221-1
Autor:
A. Velazquez-Madrazo, Robert J. Paxton, J. J. G. Quezada-Euán, A. Lopez-Velasco, J. Perez-Balam, Humberto Moo-Valle
Publikováno v:
Insectes Sociaux. 58:31-38
Although variation in body size has been recently reported in stingless bees (Meliponini), empirical evidence evaluating possible factors related to such variation is lacking, and thus it is not clear if it may have an adaptive significance. We evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a95e0d1390f3a53f1aac88d5a91339fd
https://doi.org/10.1007/s00040-010-0113-2
https://doi.org/10.1007/s00040-010-0113-2
Publikováno v:
Insectes Sociaux. 56:241-249
Neotropical orchid bees (Euglossini) are conspicuously different from other corbiculate bees (Apinae) in their lack of advanced sociality and in male use of acquired odors (fragrances) as pheromone-analogues. In both contexts, orchid bee mating syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac5ac265c928719aa18ddd3dba080c11
https://doi.org/10.1007/s00040-009-0017-1
https://doi.org/10.1007/s00040-009-0017-1
Publikováno v:
Insectes Sociaux. 55:428-433
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 (w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::021c0ec3e497f78d6e5d068689b44f56
https://doi.org/10.1007/s00040-008-1023-4
https://doi.org/10.1007/s00040-008-1023-4