Bee diversity in a fragmented landscape of the Mexican neotropic |
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Authors: | Laura Meneses Calvillo Virginia Meléndez Ramírez Víctor Parra-Tabla Jorge Navarro |
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Institution: | (1) Departamento de Zoologia, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Ap. Postal 4-116, Itzimna, Merida, Yucatan, Mexico;(2) Departamento de Ecologia, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico |
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Abstract: | The effects of fragmentation on tropical bee communities are not well understood. The present study investigated these effects
on wild bee species richness and diversity in fragments of tropical forest in the Yucatan Estate (Mexico). We present an analysis
of bee community structure based on fragment size, connectivity, and bee life form, and include an analysis of m-dominance to evaluate if large fragments sustain greater species diversity compared to small fragments. Results indicated
that the bee community within each fragment was composed of different bee species, and that species richness and diversity
increased with fragment size, although this relationship varied between the life forms. Results suggest a high degree of isolation
between fragments and greater differences in species composition. The m-dominance analysis indicated that 37% of the species recorded were restricted to medium and large-size fragments, while all
other species were randomly distributed across fragments of different size in general; ours results indicate that not only
do large fragments support greater species diversity than small fragments, but they are also essential for the conservation
of wild bee species. |
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