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Stream-dwelling anuran metacommunity structure and dynamics in the Atlantic Rainforest: a hierarchical approach that accounts for species imperfect detection

Grant number: 14/07113-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2014
Effective date (End): July 31, 2018
Field of knowledge:Biological Sciences - Ecology - Theoretical Ecology
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Tadeu de Siqueira Barros
Grantee:José Wagner Ribeiro Júnior
Home Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Associated scholarship(s):16/07469-2 - Influence of forest cover on amphibian assemblages: a priori grouping of species in multi-species occupancy models, BE.EP.DR


The metacommunity approach has provided new insights about processes that drive community structure by considering that beyond local interactions like intraspecific, interspecific, and species-environment relations, processes that occur at broader scales (e.g., dispersal) also drive the assembly of local communities. However, until now metacommunity empirical studies surprisingly neglected detection error of species, which can generate biased patterns and reduce model explanatory power. Thus, the overall objective of this thesis proposal is to investigate community assembly of stream-dwelling anurans in the Atlantic Rainforest by using hierarchical multi-species occupancy models that account for imperfect detection. Two models are stated in the hierarchical modeling approach: one for parameters that are usually the main focus (e.g., beta diversity and species occurrence), but cannot be observed directly, and another model for directly observed data that is related with ecological parameters of interest, but is influenced and biased by methodology and sampling error. More specifically, we intend to: I) evaluate that amount of variation in local community composition that can be explained by environmental and spatial processes; II) evaluate that amount of variation in beta diversity that that can be explained by environmental and spatial processes; III) investigate which metacommunity pattern best fit the observed patterns; IV) model variation in species richness as a function of both environmental and spatial co-variables. Taking into account for detection error by hierarchical modeling, we will generate more accurate models to disentangle sampling noise from ecological parameters of interest. Thus, we expect to increase the amount of explained variation in our statistics models. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RIBEIRO, JR., JOSE WAGNER; SIQUEIRA, TADEU; DIRENZO, GRAZIELLA V.; LAMBERTINI, CAROLINA; LYRA, MARIANA L.; TOLEDO, LUIS FELIPE; HADDAD, CELIO F. B.; BECKER, C. GUILHERME. Assessing amphibian disease risk across tropical streams while accounting for imperfect pathogen detection. Oecologia, v. 193, n. 1 APR 2020. Web of Science Citations: 0.
MOREIRA SUGAI, LARISSA SAYURI; FREIRE SILVA, THIAGO SANNA; RIBEIRO, JR., JOSE WAGNER; LLUSIA, DIEGO. Terrestrial Passive Acoustic Monitoring: Review and Perspectives. Bioscience, v. 69, n. 1, p. 15-25, JAN 2019. Web of Science Citations: 10.
RIBEIRO, JR., JOSE WAGNER; SIQUEIRA, TADEU; BREJAO, GABRIEL LOURENCO; ZIPKIN, ELISE F. Effects of agriculture and topography on tropical amphibian species and communities. Ecological Applications, v. 28, n. 6, p. 1554-1564, SEP 2018. Web of Science Citations: 2.

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