Time and land-use change in an agricultural landscape: are there consequences to the functional diversity of tropical stream fish in a decade?

• Grant number: 15/04366-5
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: November 01, 2015
• End date: October 31, 2016
• Field of knowledge: Biological Sciences - Zoology - Applied Zoology
• Principal Investigator: Lilian Casatti
• Grantee: Jaquelini de Oliveira Zeni
• 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: 12/20280-5 - Landscape changes in medium term: consequences for the composition, trophic structure and functional diversity of fish fauna in tropical streams., BP.DR

Abstract

Successive changes in land-use over the years have potential to affect aquatic organisms and communities functioning. Thus, the aim of this project is assess if, and how, the land-use - grassland to sugarcane - and time (one decade) can affect functional diversity of tropical stream fish. For this, we resampled 43 streams that had been sampled in 2003 at Northwest state of São Paulo. All streams were resampled following the same methodology: two electrofishing passes with power generator (220 V, 50-60Hz, 3.4-4.1 A, 1000 W) in 75 m reach in each stream. The dominant land-use changed in 14 streams (grasslands à sugarcane) and the land-use remained unchanged in 29control streams. The 2003 samples will be compared with 2013 as for: (i) functional diversity (similarity dendrograms and MPD "mean pairwise distance" and MNTD "mean nearest taxon distance") and (ii) beta functional diversity, both based on trophic and ecomorphological traits. To evaluate the effect of land-use change and time on the community functional diversity and structure, a RDA partial will be performed at Rprogram. Thus, the results will be useful the development of conservation, management and restoration actions for river and stream ecosystems, especially in highly disturbed areas by agriculture. (AU)

Scientific publications

(4)

(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)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; CASATTI, LILIAN. Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams. Hydrobiologia, v. 847, n. 18, p. 15-pg., 2020-07-30. (10/17494-8, 15/04366-5, 12/20280-5, 16/01535-3, 01/13340-7, 18/06033-1, 12/05983-0)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; CASATTI, LILIAN. Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams. Hydrobiologia, v. 847, n. 18, SI, JUL 2020. (01/13340-7, 10/17494-8, 15/04366-5, 18/06033-1, 16/01535-3, 12/05983-0, 12/20280-5)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; CASATTI, LILIAN. Effects of pasture conversion to sugarcane for biofuel production on stream fish assemblages in tropical agroecosystems. Freshwater Biology, v. 62, n. 12, p. 2026-2038, DEC 2017. (12/20280-5, 15/04366-5)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; CASATTI, LILIAN. Effects of pasture conversion to sugarcane for biofuel production on stream fish assemblages in tropical agroecosystems. FRESHWATER BIOLOGY, v. 62, n. 12, p. 13-pg., 2017-12-01. (15/04366-5, 12/20280-5)