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Impacts of the anthropogenic landscape structure and its dynamics on bird communities

Grant number: 10/05343-5
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2011
Effective date (End): April 30, 2015
Field of knowledge:Biological Sciences - Ecology
Principal Investigator:Hilton Thadeu Zarate Do Couto
Grantee:Eduardo Roberto Alexandrino
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated scholarship(s):14/14925-9 - The usage of bird assemblages as environmental quality indicator of forest patches in a highly agricultural landscape, BE.EP.DR


The conversion of original habitats in agricultural lands, and consequently the habitat fragmentation, is considered the main threat for biodiversity conservation. Nowadays, fragmented habitats embedded by an agricultural matrix are common scenarios in many regions on Earth, and therefore research is necessary to provide knowledge about the potential adaptation of biodiversity on these anthropogenic landscapes. Thus, the following study aims to describe the structure of bird assemblages that occur in forest patches inserted in pasture and sugarcane matrices, as well as in the interior of these crops, evaluating the effects caused by the dynamics, structure and composition of the landscapes on these bird assemblages. As experimental design, in 2010/2011 five samples of landscape (each one with 16km2) were placed in an agricultural landscape in southeast Brazil (Corumbataí river basin, 170000ha), after searching for sites composed at least by 70% of the matrix and 10% of forest habitat in its interior. Three samples of landscape were placed on pasture matrix (north) and two on sugarcane matrix (south). Thereafter eight forest patches were selected in these samples of landscapes considering the mean forest age through historical images analyses (1962, 1978, 1995, 2000 and 2008), resulting in a selection of four old patches (the most part of the patch was present on the river basin since 1962 or 1978) and four new patches (the most part of the patch has early re-growth started in 1995), being two old and two new on both matrix categories. Also, eight samples plots inside each crop (pasture and sugarcane) were chosen considering sites located at least 300 meters radius distant of other land uses. Thus, birds assemblages in forest patches and samples plots in crops were one year sampled (Nov2011-Nov2012) using point counts and transect methods. The landscape structure, through recent aerial images, are being collected by 1000m of circular buffers on the samples sites (forest and samples plots in each crop), and for the dynamic (fragmentation and forest re-growth) the historical images are being used. Initially, classical approaches of community ecology, such as richness, Shannon diversity, species composition, as well as innovative approaches (Functional diversity and Index of Biotic Integrity) will be performed in order to test which approach could be the best dependent variable to evaluate the effects of the landscape dynamic and structure on bird assemblages. The expectation of this project is to produce useful information to identify possible ways to promote high biodiversity maintenance in agricultural landscapes, and to produce useful knowledge for future researchers to test agricultural management actions. This Project is linked to FAPESP Projeto Auxilio Pesquisa n.2011/06782-5. (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)
BOVO, ALEX A. A.; FERRAZ, KATIA M. P. M. B.; MAGIOLI, MARCELO; ALEXANDRINO, EDUARDO R.; HASUI, ERICA; RIBEIRO, MILTON C.; TOBIAS, JOSEPH A. Habitat fragmentation narrows the distribution of avian functional traits associated with seed dispersal in tropical forest. PERSPECTIVES IN ECOLOGY AND CONSERVATION, v. 16, n. 2, p. 90-96, APR-JUN 2018. Web of Science Citations: 2.
ALEXANDRINO, EDUARDO ROBERTO; BUECHLEY, EVAN R.; KARR, JAMES R.; DE BARROS FERRAZ, KATIA MARIA PASCHOALETTO MICCHI; DE BARROS FERRAZ, SILVIO FROSINI; DO COUTO, HILTON THADEU ZARATE; SEKERCIOGLU, CAGAN H. Bird based Index of Biotic Integrity: Assessing the ecological condition of Atlantic Forest patches in human-modified landscape. ECOLOGICAL INDICATORS, v. 73, p. 662-675, FEB 2017. Web of Science Citations: 3.
ALEXANDRINO, EDUARDO ROBERTO; BUECHLEY, EVAN R.; PIRATELLI, AUGUSTO JOAO; MICCHI DE BARROS FERRAZ, KATIA MARIA PASCHOALETTO; MORAL, RAFAEL DE ANDRADE; SEKERCIOGLU, CAGAN H.; SILVA, WESLEY RODRIGUES; ZARATE DO COUTO, HILTON THADEU. Bird sensitivity to disturbance as an indicator of forest patch conditions: An issue in environmental assessments. ECOLOGICAL INDICATORS, v. 66, p. 369-381, JUL 2016. Web of Science Citations: 6.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
ALEXANDRINO, Eduardo Roberto. The human-modified landscapes under assessment: Bird in forest patches, agricultural matrices and the implications for conservation. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz Piracicaba.

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