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Mammal occurrence and biological invasion in Cerrado remnants of agricultural landscapes

Abstract

The conservation of species outside protected areas (PAs) is a growing trend of the conservation community, since PAs do not hold the majority of remaining native habitat. In the last 50 years, the Cerrado of São Paulo State has undergone a drastic transformation, having been replaced by pastures and, later, by extensive sugarcane plantations and, to a lesser extent, forestry. In this scenario of strong agricultural economy and growing demand for biofuels, it is essential to evaluate the degree of dependence between mammals and Cerrado remnants represented, above all, by the areas of permanent preservation (APPs) and legal reserves (RLs) immersed in agricultural mosaics. The understanding of the relationship between environmental degradation and preservation of biotic community must also include the investigation of the process of biological invasion, since the dynamic of the latter is closely related to the degradation resulting from landscape transformation. However, studies with this focus on agricultural mosaics are still incipient in Brazil. This project has as main objectives: 1) to evaluate the occurrence of mammals, in particular of neglected species with relevant ecological contribution (armadillos), in Cerrado remnants immersed in landscapes dominated by agrosilviculture; and 2) to investigate concomitantly the process of biological invasion by examining the occurrence of three of the main mammal invader species in Brazil: the European Hare (Lepus europaeus), wild boar (Sus scrofa) and domestic dog. The study will be carried out in agricultural landscapes of São Paulo, and will be based on data from complementary sampling methods (cameratraps, track and burrow sampling along transects). The analyses will involve occupancy models, which allow the estimation of detection separately by sampling method (cameratrap/transects) and the estimation of occupancy in several spatial scales. We will sample 72 landscapes, selecting them through criteria that maximize the variance of the remaining native vegetation cover and minimize interference from uncontrolled factors. In addition, we will examine biological samples (mainly feces) of the European hare and the Brazilian rabit for assessing the viability of identifying these species through non-invasive genetic analyses. This study aims to elucidate the role of two of the main processes responsible for the decline of biodiversity in rural landscapes with strong agricultural economy. The data to be generated have, therefore, implications not only for the conservation of native fauna but also to the agricultural policy and economy in General. (AU)

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Scientific publications (5)
(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)
RODRIGUES, THIAGO F.; NOGUEIRA, KEILLER; CHIARELLO, ADRIANO G. Noninvasive Low-cost Method to Identify Armadillos' Burrows: A Machine Learning Approach. WILDLIFE SOCIETY BULLETIN, v. 45, n. 3 SEP 2021. Web of Science Citations: 0.
VERSIANI, NATALIA F.; BAILEY, LARISSA L.; PASQUALOTTO, NIELSON; RODRIGUES, THIAGO F.; PAOLINO, ROBERTA M.; ALBERICI, VINICIUS; CHIARELLO, ADRIANO G. Protected areas and unpaved roads mediate habitat use of the giant anteater in anthropogenic landscapes. JOURNAL OF MAMMALOGY, v. 102, n. 3, p. 802-813, JUN 2021. Web of Science Citations: 0.
MAGIOLI, MARCELO; MICCHI DE BARROS FERRAZ, KATIA MARIA PASCHOALETTO; CHIARELLO, ADRIANO GARCIA; GALETTI, MAURO; FREIRE SETZ, ELEONORE ZULNARA; PAGLIA, ADRIANO PEREIRA; ABREGO, NEREA; RIBEIRO, MILTON CEZAR; OVASKAINEN, OTSO. Land-use changes lead to functional loss of terrestrial mammals in a Neotropical rainforest. PERSPECTIVES IN ECOLOGY AND CONSERVATION, v. 19, n. 2, p. 161-170, APR-JUN 2021. Web of Science Citations: 1.
RODRIGUES, NAYRA T.; SARANHOLI, BRUNO H.; ANGELONI, THAIS A.; PASQUALOTTO, NIELSON; CHIARELLO, ADRIANO G.; GALETTI, JR., PEDRO M. DNA mini-barcoding of leporids using noninvasive fecal DNA samples and its significance for monitoring an invasive species. ECOLOGY AND EVOLUTION, v. 10, n. 12 JUN 2020. Web of Science Citations: 0.
RODRIGUES, THIAGO F.; MANTELLATTO, ALINE M. B.; SUPERINA, MARIELLA; CHIARELLO, ADRIANO G. Ecosystem services provided by armadillos. BIOLOGICAL REVIEWS, v. 95, n. 1 AUG 2019. Web of Science Citations: 0.

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