Affiliation:
1. Laboratório de Bioecologia de Scarabaeoidea (Scaralab), Universidade Estadual de Mato Grosso do Sul 79200‐000 Mato Grosso do Sul Aquidauana Brazil
2. Instituto de Ecología Universidad Nacional Autónoma de México Ciudad de México Mexico
3. Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso Juína 78320‐000 Mato Grosso Brazil
4. Instituto Federal de Educação Ciência e Tecnologia de Rondônia Colorado do Oeste 76993‐000 Rondônia Brazil
5. Programa de Pós‐Graduação em Proteção de Plantas Universidade Federal de Alagoas Rio Largo 57100‐000 Alagoas Brazil
Abstract
AbstractBy understanding how assemblages segregate according to food types, it is possible to depict and understand species distribution and exploitation of similar food resources. Although it is well known that dung beetles may feed on carrion, but the attractiveness of different carrion types for these beetles is still poorly understood. In this study, we compared the dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) diversity attracted to two carrion types in different habitats in an Amazonian landscape. Dung beetles were captured by using pitfall traps baited with decaying cattle beef and cattle liver in native forest, peach palm plantation, teak plantation and exotic pasture. Overall, we captured 582 dung beetles of 43 species, where Canthidium aff. lentum was classified as a specialist of cattle beef, Deltochilum sp. One was considered specialist of liver carrion, 11 were considered generalists and for the 30 remaining species, it was not possible to determine their carrion preference due to the low number. Abundance, but not species richness, was affected by carrion type, and a higher number of beetles was recorded in beef‐baited traps compared to liver‐baited traps. According to functional groups, endocoprid beetles were more abundant in traps baited with decaying beef, while paracoprid and telecoprid beetles did not show preference for any carrion type. This study suggests a novel scenario of intra‐resource segregation, where species vary their preferences depending to the part of the dead corpse being exploited. The amount of food resource, the maintenance of stable populations and trophic preference mediated by chemical cues are some mechanisms that may explain the segregation of dung beetles among carrion types.
Subject
Ecology,Ecology, Evolution, Behavior and Systematics
Cited by
2 articles.
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