Biotic heterogeneity among scarab beetle communities in an anthropized landscape in the Central Valleys of Oaxaca, Mexico
Por:
Ramírez-Ponce A., Calderón-Patrón J.M., Vásquez H.M.G., Moreno C.E.
Publicada:
1 ene 2019
Resumen:
In the tropics, changes in land use are a major concern given that the transformation of natural ecosystems to degraded environments for human use occurs rapidly and is associated with deforestation, fragmentation, isolation, among other impacts. Scarab beetles are well represented in tropical and warm temperate ecosystems due to their high diversity, numerous ecological functions, sensitivity to habitat disturbances, and responses to anthropized areas, so they are considered as a model group to study the consequences of environmental disturbance in tropical regions. We present an analysis of the scarab beetle diversity in an anthropized landscape with five different land uses in the Central Valleys of the state of Oaxaca, Mexico, with an emphasis on the dissimilarity in species composition. The organisms were collected with dung-, carrion- and fruit-baited traps during five sampling periods. We identified 2766 individuals belonging to 40 species, the majority being coprophagous or copro-necrophagous. The most abundant species was Phanaeus nimrod, with 624 individuals, although the most abundant species changed according to land uses. Beta diversity was high (80% on average), and between four sites dissimilarity was 100%. Species replacement was more important than differences in richness for the total beta diversity calculated with incidence data; and balanced variation in abundance was more important than the abundance gradient in the case of analyses with abundances. The landscape presented high scarab beetle diversity, mainly due to a high species replacement and the balanced variation in abundance, indicating that a high biotic heterogeneity has been maintained, or even enhanced following landscape modification. © 2019, Springer Nature Switzerland AG.
Filiaciones:
Ramírez-Ponce A.:
CONACYT-Laboratorio Regional de Biodiversidad y Cultivo de Tejidos Vegetales, Instituto de Biología, UNAM-sede Tlaxcala, San Manuel de Morcóm s/n, Tlaxcala de Xicoténcatl, Tlaxcala, Mexico
Calderón-Patrón J.M.:
Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Juriquilla, Mexico
Instituto Tecnológico del Valle de Oaxaca, Nazareno Xoxocotlán, Oaxaca, Mexico
Vásquez H.M.G.:
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Oaxaca, IPN, Oaxaca, Mexico
Moreno C.E.:
Centro de Investigaciones Biológicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, Mexico
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