In this study, the results of the comparison of the composition and species richness of dung beetles in two types of remnants with different shapes but equal size, a forest corridor vs. three isolated patches in an area of the Colombian Orinoquia. In total, 32 species and 14 genera were captured, of which 30 were captured in corridors and 29 in patches. No significant difference was observed in the values of richness or diversity for the two types of remnants (H'corridor=2.302, H'patches=2.531) although the values found are low for the Orinoquia region. Evenness values are high for the two remnants, indicating a relatively homogeneous distribution of abundance, which fits the lognormal curve for this beetle community. Likewise, the similarity values are high (Morisita-Horn = 0.877) with 87.5% of the species shared between the two types of remnants. It is possible that for this region the size is more important than the shape of the remnant, and that the composition of species that is still found in these patches of forest is the same for the two areas compared, as they are species with wide physiological ranges of tolerance against the effects of fragmentation.
DOI
10.21829/azm.1999.76761703
Publication Year
1999
Publication Site
Acta Zoologica Mexicana (nueva serie)
Journal Volume
76
Page Numbers
113–126
Family
Scarabaeidae
General topic
Ecology
Biodiversity/Biogeography
Specific topic
community structure
habitat disturbance
Abstract Note