@Article{RochaSaZaPrGoSc:2020:PrRiFo,
author = "Rocha, Marcelo Carvalho da and Santos, Maur{\'{\i}}cio Beux dos
and Zanella, Renato and Prestes, Osmar Damian and
Gon{\c{c}}alves, Alberto Senra and Schuch, Andr{\'e} Passaglia",
affiliation = "{Universidade Federal de Santa Maria (UFSM)} and {Universidade
Federal de Santa Maria (UFSM)} and {Universidade Federal de Santa
Maria (UFSM)} and {Universidade Federal de Santa Maria (UFSM)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal de Santa Maria (UFSM)}",
title = "Preserved riparian forest protects endangered forest-specialists
amphibian species against the genotoxic impact of sunlight and
agrochemicals",
journal = "Biological Conservation",
year = "2020",
volume = "249",
pages = "e108746",
month = "Sept",
keywords = "Amphibian decline, DNA damage, Pesticides, UV radiation,
Deforestation.",
abstract = "Although agrochemicals and solar ultraviolet (UV) radiation are
both environmental stressors currently associated with amphibian
decline, little is known about their interactive effects on
amphibian larvae. One potential hazardous consequence of this
interaction could be the increase of chromosomal damage and
induction of cell death, which culminate in tadpole mortality. In
this study, the preservation level of the riparian forest of four
different streams located at the Atlantic Forest in southern
Brazil was evaluated through satellite imagery analysis. The
incidence of solar UVB and UVA radiation were measured with a
radiometer in the amphibian breeding sites, and the presence of
agrochemicals in the water was quantified through liquid
chromatography coupled in tandem to mass spectrometry. Tadpole
population density of two endangered forest-specialist amphibian
species (Boana curupi and Crossodactylus schmidti) was evaluated
in each stream, and the chromosomal damage of the collected larvae
was determined through cytogenetic analysis of blood samples. The
results clearly indicate that the preservation of riparian forest
efficiently blocks the incidence of UV radiation upon the water
surface and reduce by 2.7-fold the entry of agrochemicals from
adjacent agricultural crops. Tadpoles collected in streams with
preserved and continuous riparian forest presented a significantly
lower amount of micronuclei, as well as higher population density
in comparison to tadpoles collected in streams located in
converted agricultural landscape. Therefore, this study
demonstrates that the preservation of the riparian forest has
paramount importance in reducing the impact of environmental
genotoxic agents into lotic breeding sites used by
forestspecialist amphibian species.",
doi = "10.1016/j.biocon.2020.108746",
url = "http://dx.doi.org/10.1016/j.biocon.2020.108746",
issn = "0006-3207",
language = "en",
targetfile = "rocha_preserved.pdf",
urlaccessdate = "27 abr. 2024"
}