Relationships between the deforestation process and the fish diversity patterns at Western Amazon streams

• Grant number: 15/05827-6
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date until: March 01, 2016
• End date until: August 31, 2016
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering - Nature Conservation
• Principal Investigator: Lilian Casatti
• Grantee: Gabriel Lourenço Brejão
• Supervisor: David Joseph Hoeinghaus
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
• Institution abroad: University of North Texas, United States
• Associated to the scholarship: 12/21916-0 - Relationships among the deforestation process and the fish diversity patterns at Western Amazon streams, BP.DR

Abstract

The streams of the Neotropical region harbor a small-sized fish fauna, frequently with limited geographical distribution and, generally, highly dependent on riparian vegetation for feeding, shelter and reproduction. The watershed native vegetation removal is one among several modifications, which effects on aquatic environments are not completely understood yet. The knowledge of deforestation history along with current landscape structure enhances the power of analysis to evaluate ecological deforestation effects. Moreover, distinct ways of deforestation process might affect the fish community composition and functioning. The Machado river basin in Rondônia is an important basin of Amazon region, prone to exhibit high diversity and endemism; presents a recent history of high deforestation and land use intensification, which can cause profound changes in aquatic environments. Thus, the aim of this proposal is to understand how the deforestation process affects the ichthyofauna, as well as to find the consequences of this process on fish alpha (±), beta (²) and functional diversity patterns.

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)

PEREZ-MAYORGA, MARIA ANGELICA; CASATTI, LILIAN; TERESA, FABRICIO BARRETO; BREJAO, GABRIEL LOURENCO. Shared or distinct responses between intermediate and satellite stream fish species in an altered Amazonian River?. ENVIRONMENTAL BIOLOGY OF FISHES, v. 100, n. 12, p. 1527-1541, DEC 2017. (15/05827-6, 12/21916-0, 10/17494-8)

BREJAO, GABRIEL L.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; PEREZ-MAYORGA, MARIA ANGELICA; FERRAZ, SILVIO F. B.; CASATTI, LILIAN. Taxonomic and functional turnover of Amazonian stream fish assemblages is determined by deforestation history and environmental variables at multiple scales. Neotropical Ichthyology, v. 19, n. 3, 2021. (10/17494-8, 12/21916-0, 09/12318-0, 18/11954-9, 15/05827-6)

BREJAO, GABRIEL L.; HOEINGHAUS, DAVID J.; PEREZ-MAYORGA, MARIA ANGELICA; FERRAZ, SILVIO F. B.; CASATTI, LILIAN. Threshold responses of Amazonian stream fishes to timing and extent of deforestation. Conservation Biology, v. 32, n. 4, p. 860-871, AUG 2018. (10/17494-8, 12/21916-0, 15/05827-6, 09/12318-0)