Richness and abundance of bats and birds in 12-year-old restoration settings

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Authors:
Edith Rivas-Alonso , Cristina Martínez-Garza

Publication Date:
2021

Abstract/Summary:
After plant cover is recovered, it is assumed that flying animal will use restored areas. The objective of this study was to evaluate richness and abundance of bats and birds in 12-years-old restoration settings in the tropical rainforest of Los Tuxtlas, Veracruz, Mexico. In 2006, cattle grazing was excluded from 24 30×30 m plots: eight plots were planted with 12 wind-dispersed tree species, eight plots were planted with 12 animal-dispersed species, and eight plots were left to undergo natural succession (no plantings). We use 18 plots to sample bats and birds in 2017 and 2018; two mist nets of 12 m were put in the 18 plots, 2 days per plot. For bats, nets were open at 18:00 hr for 5 hours while for birds, nets were open at 5:00 hr for 4 hours. With an effort of capture of 21,120 mt/hrs/net, we registered 509 bats from 16 species. With an effort of capture of 20,352 mt/hrs/net, we registered 180 birds from 46 species. Overall trophic guilds, richness and abundance of birds of were significantly higher in natural succession while insectivorous birds were also more abundant in natural succession. Overall trophic guilds, richness and abundance of bats were similar at all restoration treatments while a higher abundance of frugivorous bats was registered in the plantings of animal-dispersed species. Insectivorous birds found more resources in natural succession while frugivorous bats did so in plantings which included trees dispersed by bats of at least 16 planted or naturally recruited tree species.

Resource Type:
Conference Presentation, SER2021

Pre-approved for CECs under SER's CERP program

Source:
SER2021