Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

División de recursos entre Trigona fulviventris y Scaptotrigona mexicana con la superposición de rangos de vuelo

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Publication Date

May 2003

Abstract

The theory of resource partitioning predicts that congeneric species are allowed to coexist by a division of the available resources. This study looks at the possibility of resource partitioning between Trigona fulviventris and Scaptotrigona mexicana on fine temporal scales in Cloud Forest habitat, a region in which stingless bee pollen diets has not been extensively studied. Workers from one T. fulviventris and one S. mexicana nest, located 200 m apart, were studied synchronously over six days. Capture-mark and release experiments verified that the foraging areas of these two nests indeed overlap. Of the 14 morphotypes of pollen brought in by S. mexicana and the 16 morphotypes brought in by T. fulviventris, seven morphotypes were found in common between the two species (Sørenson index = 0.3). La teoría de la división de recursos predice que las especies similares se permiten coexistir por una división de los recursos disponibles. Este estudio examina la posibilidad de la división de los recursos entre Trigona fulviventris y Scaptotrigona mexicana a corto plazo en el bosque nuboso, una región en que las dietas de polen de las abejas sin aguijón no se había estudiado extensamente. Las abejas trabajadoras de T. fulviventris y de S. mexicana, con una separación de los nidos de 200 metros de distancia, se estudiaban al mismo tiempo por seis días. Experimentos de capturar-marcar y soltar confirmaron que las áreas donde las abejas de estos dos nidos buscan comida traslapan. De los 14 morfotipos de polen traídos al nido por S. mexicana y los 16 por T. fulviventris, siete morfotipos eran lo mismo entre las dos especies (índice de Sørenson = 0.3).

Keywords

Partitioning, Habitat (Ecology), Compartimentacion, habitat (Ecologia), Bees--Behavior, Abejas--Comportamiento, Monteverde Biological Station (Costa Rica), Estacion Biologica de Monteverde (Costa Rica), CIEE Spring 2003, CIEE Primavera 2003

Description

Student Affiliation : Department of Biological Sciences, Ecology, Behavior and Evolution Program, University of California, San Diego Digitized by MVI

Subject: topical

Partitioning, Habitat (Ecology); Compartimentacion, habitat (Ecologia); Bees--Behavior; Abejas--Comportamiento; CIEE Spring 2003; CIEE Primavera 2003

Subject: geographic

Monteverde Biological Station (Costa Rica); Estacion Biologica de Monteverde (Costa Rica)

Genre

Reports

Holding Location

Monteverde Institute MVI

Identifier

M39-00141

Resource partitioning between Trigona fulviventris and Scaptotrigona mexicana with overlapping flight ranges

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