Realm: Terrestrial
Climate: Tropical
Biome: Tropical and subtropical moist broadleaf forests
Central latitude: 18.477860
Central longitude: -95.155580
Duration: 4 years, from 1999 to 2017

1260 records

42 distinct species

Across the time series Canthidium centrale is the most frequently occurring species

Methods

Eleven forest fragments and eight pastures that include the San Martín Tuxtla Volcano and the Sierra de Santa Marta (the other nucleus area) that were sampled in 19992000 (Favila 2005) were resampled in 20162017. Forest fragments and pastures were monthly resampled at each period. The months surveyed were almost the same in 19992000 and 20162017 (i.e., January in 19992000, February in 20162017, March, May, June, August, and October in both periods), allowing to compare the dung beetle assemblage between both annual sampling periods. We used the same methodology as in Favila (2005) to collect dung beetles in each forest fragment and pastures. Pitfall traps (11 cm diameter × 7.5 cm depth) were baited with ca. 25 g of human feces or carrion (i.e., fresh fish meat). Each pitfall was filled with ca. 200 mL of 70% alcohol to preserve the collected specimens, covered with a plastic plate to prevent rainfall and leaf litter from falling into the trap. Pitfall traps were set in two groups of four traps per site, with traps spaced out 20 m from each other within each group, being alternately baited with feces and carrion. Each group was spaced out 100 m from the other. Traps were placed at a distance of at least 20 m from the edge of the habitat surveyed (i.e., forest fragment or pasture), which is sufficient to observe clear differences in the dung beetle assemblage of forest fragments and pastures within the LTBR (Favila 2005). Traps were left in place for 48 h in every sampling period. At each period, a total of 912 traps was set (8 traps per site, in 19 sites, which were resampled six times): 528 in forest fragments and 384 in pastures. Specimens were deposited in the entomological collection at the Instituto de Ecología, A.C. Species were classified into functional groups according to resource removal strategies (rollers telecoprids; tunnellers paracoprids; dwellers endocoprids) (Halffter and Edmonds, 1982, Scholtz et al., 2009).”[Extracted from Salomão et al 2020]. Additional: abundance units are individual counts, and biomass units are grams. Sites were sampled at diffferent frequencies, from 2 to 8 times in 2 to 4 years.

Citation(s)

@Article{BioTIME_cit636, Study_id = {776}, Citation_id = {636}, Author = {Salom{\~a}o, Renato P. and Favila, Mario E. and Gonz{\'a}lez-Tokman, Daniel}, Journal = {Ecological Indicators}, Pages = {105968}, Title = {Spatial and temporal changes in the dung beetle diversity of a protected, but fragmented, landscape of the northernmost Neotropical rainforest}, Volume = {111}, Year = {2020}, Doi = {10.1016/j.ecolind.2019.105968}, Language = {English} }