Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?

During 30 days male euglossine bees were bait-sampled at 12 sites, in the central Pacific coast of Colombia (ten days and four sites at each of three adjacent habitats: farmlands, highly disturbed forest and less disturbed forest) and 487 individuals were captured. Most captured individuals belonged...

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Main Author: Juan Carlos Sandino
Format: Article
Language:English
Published: Vicerractoría Investigación 2004-03-01
Series:Revista de Biología Tropical
Subjects:
Online Access:http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442004000100016
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spelling doaj-9943ffe1a1cf46eaa15fea4f52fdb7402020-11-25T01:35:41ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442215-20752004-03-01521115118Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?Juan Carlos SandinoDuring 30 days male euglossine bees were bait-sampled at 12 sites, in the central Pacific coast of Colombia (ten days and four sites at each of three adjacent habitats: farmlands, highly disturbed forest and less disturbed forest) and 487 individuals were captured. Most captured individuals belonged to six species, five widely distributed through the American tropics and an endemic species. Two of the frequently captured species presented no different abundances between habitats, while the other four (67.97% of all the captured individuals), all of them big sized or long-tongued, were more frequently captured at the farmlands. A cluster analysis of the data matrix for the 23 captured species and the 12 sampling sites, grouped together the farmland sites, apart from the forest sites. It is proposed that male euglossine bees from generalist, long-tongued or big sized species, forage frequently at the farmlands, where fragrance or nectar resources may be clumped, less diverse, and present an access restricted by deep corollas or by microclimatic conditions of high temperature and low humidity<br>Durante treinta días y en doce sitios de muestreo en la costa pacífica central de Colombia (diez días y cuatro sitios en cada uno de tres hábitats adyacentes: fincas, bosque muy perturbado y bosque menos perturbado), se capturaron 487 machos euglosinos. La mayoría de machos pertenecen a seis especies, cinco de amplia distribución en tierras bajas de la América tropical y una endémica. De estas seis especies, dos no presentan diferencias significativas en su distribución entre hábitats, mientras que las otras cuatro (que representan 67.97% del total de individuos capturados), todas grandes o de lenguas largas, fueron capturadas con mayor frecuencia en las fincas. Un análisis de agrupamiento de la matriz de datos, para las 23 especies capturadas y los 12 sitios de muestreo, agrupó los sitios de finca aparte de los de bosque. Se propone que los machos euglosinos de especies generalistas, grandes o de lenguas largas, forrajearían con mayor frecuencia en las fincas, pues allí los recursos de néctar o fragancias presentarían mayor densidad, menor diversidad o un acceso restringido por corolas profundas o por condiciones microclimáticas de alta temperatura y baja humedadhttp://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442004000100016Euglossine beesColombiadeforestation gradientpollinatorsfarmlands
collection DOAJ
language English
format Article
sources DOAJ
author Juan Carlos Sandino
spellingShingle Juan Carlos Sandino
Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
Revista de Biología Tropical
Euglossine bees
Colombia
deforestation gradient
pollinators
farmlands
author_facet Juan Carlos Sandino
author_sort Juan Carlos Sandino
title Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
title_short Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
title_full Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
title_fullStr Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
title_full_unstemmed Are there any agricultural effects on the capture rates of male euglossine bees (Apidae: Euglossini)?
title_sort are there any agricultural effects on the capture rates of male euglossine bees (apidae: euglossini)?
publisher Vicerractoría Investigación
series Revista de Biología Tropical
issn 0034-7744
2215-2075
publishDate 2004-03-01
description During 30 days male euglossine bees were bait-sampled at 12 sites, in the central Pacific coast of Colombia (ten days and four sites at each of three adjacent habitats: farmlands, highly disturbed forest and less disturbed forest) and 487 individuals were captured. Most captured individuals belonged to six species, five widely distributed through the American tropics and an endemic species. Two of the frequently captured species presented no different abundances between habitats, while the other four (67.97% of all the captured individuals), all of them big sized or long-tongued, were more frequently captured at the farmlands. A cluster analysis of the data matrix for the 23 captured species and the 12 sampling sites, grouped together the farmland sites, apart from the forest sites. It is proposed that male euglossine bees from generalist, long-tongued or big sized species, forage frequently at the farmlands, where fragrance or nectar resources may be clumped, less diverse, and present an access restricted by deep corollas or by microclimatic conditions of high temperature and low humidity<br>Durante treinta días y en doce sitios de muestreo en la costa pacífica central de Colombia (diez días y cuatro sitios en cada uno de tres hábitats adyacentes: fincas, bosque muy perturbado y bosque menos perturbado), se capturaron 487 machos euglosinos. La mayoría de machos pertenecen a seis especies, cinco de amplia distribución en tierras bajas de la América tropical y una endémica. De estas seis especies, dos no presentan diferencias significativas en su distribución entre hábitats, mientras que las otras cuatro (que representan 67.97% del total de individuos capturados), todas grandes o de lenguas largas, fueron capturadas con mayor frecuencia en las fincas. Un análisis de agrupamiento de la matriz de datos, para las 23 especies capturadas y los 12 sitios de muestreo, agrupó los sitios de finca aparte de los de bosque. Se propone que los machos euglosinos de especies generalistas, grandes o de lenguas largas, forrajearían con mayor frecuencia en las fincas, pues allí los recursos de néctar o fragancias presentarían mayor densidad, menor diversidad o un acceso restringido por corolas profundas o por condiciones microclimáticas de alta temperatura y baja humedad
topic Euglossine bees
Colombia
deforestation gradient
pollinators
farmlands
url http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442004000100016
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