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Soil and forest structure predicts large-scale patterns of occurrence and local abundance of a widespread Amazonian frog
- Source :
- PeerJ, Vol 6, p e5424 (2018), Repositório Institucional do INPA, Instituto Nacional de Pesquisas da Amazônia (INPA), instacron:INPA, PeerJ
- Publication Year :
- 2018
- Publisher :
- PeerJ Inc., 2018.
-
Abstract
- The distribution of biodiversity within the Amazon basin is often structured by sharp environmental boundaries, such as large rivers. The Amazon region is also characterized by subtle environmental clines, but how they might affect the distributions and abundance of organisms has so far received less attention. Here, we test whether soil and forest characteristics are associated with the occurrence and relative abundance of the forest-floor dwelling Aromobatid frog,Allobates femoralis. We applied a structured sampling regime along an 880 km long transect through forest of different density. High detection probabilities were estimated forA. femoralisin each of the sampling modules. Using generalized linear mixed-effects models and simple linear regressions that take detectability into account, we show thatA. femoralisis more abundant in open forests than in dense forests. The presence and relative abundance ofA. femoralisis also positively associated with clay-rich soils, which are poorly drained and therefore likely support the standing water bodies required for reproduction. Taken together, we demonstrate that relatively easy-to-measure environmental features can explain the distribution and abundance of a widespread species at different spatial scales. Such proxies are of clear value to ecologists and conservation managers working in large inaccessible areas such as the Amazon basin.
- Subjects :
- Environmental Impacts
0106 biological sciences
Data Analysis
Rainforest
Conservation Biology
010504 meteorology & atmospheric sciences
Amazonian
Forest Structure
Biodiversity
lcsh:Medicine
Allobates femoralis
010603 evolutionary biology
01 natural sciences
General Biochemistry, Genetics and Molecular Biology
Soil
Amazonia
Tropical forest
Abundance (ecology)
Tropical Rain Forest
Transect
Sampling
Relative species abundance
0105 earth and related environmental sciences
Tadpole
River
Population Biology
biology
Allobates Femoralis
Ecology
Amazon rainforest
General Neuroscience
Environmental heterogeneity
lcsh:R
Sampling (statistics)
General Medicine
Ecological limiting factors
biology.organism_classification
Nonhuman
Geography
Biogeography
Manager
Anura
General Agricultural and Biological Sciences
Subjects
Details
- Language :
- English
- ISSN :
- 21678359
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- PeerJ
- Accession number :
- edsair.doi.dedup.....88d95ac51e7b4f9ac8a9eb6b362942d5