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Balbuena‐Serrano Á, Zarco‐González MM, Monroy‐Vilchis O. Biases and information gaps in the study of habitat connectivity in the Carnivora in the Americas. Mamm Rev 2023. [DOI: 10.1111/mam.12312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Ángel Balbuena‐Serrano
- División de Estudios de Posgrado e Investigación Instituto Tecnológico de Toluca, Tecnológico Nacional de México Av. Tecnológico S/N. Colonia Agrícola Bellavista, C.P. 52149 Metepec Estado de México Mexico
| | - Martha Mariela Zarco‐González
- Instituto de Ciencias Agropecuarias y Rurales‐Universidad Autónoma del Estado de México Campus El Cerrillo Piedras Blancas Toluca Estado de México 50090 Mexico
| | - Octavio Monroy‐Vilchis
- Universidad Autónoma Metropolitana, Unidad Lerma Av. de las garzas, El Panteón Lerma Estado de México 52005 México
- Universidad Autónoma del Estado de México Instituto literario No. 100 Toluca Estado de Mexico 50000 México
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Tirelli FP, Trigo TC, Queirolo D, Kasper CB, Bou N, Peters F, Mazim FD, Martínez-Lanfranco JA, González EM, Espinosa C, Favarini M, da Silva LG, Macdonald DW, Lucherini M, Eizirik E. High extinction risk and limited habitat connectivity of Muñoa’s pampas cat, an endemic felid of the Uruguayan Savanna ecoregion. J Nat Conserv 2021. [DOI: 10.1016/j.jnc.2021.126009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bou N, Soutullo Á, Hernández D, Mannise N, González S, Bartesaghi L, Pereira J, Merino M, Espinosa C, Trigo TC, Cosse M. Population structure and gene flow of Geoffroy’s cat ( Leopardus geoffroyi) in the Uruguayan Savanna ecoregion. J Mammal 2021. [DOI: 10.1093/jmammal/gyab043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Felids are among the species most threatened by habitat fragmentation resulting from land-use change. In the Uruguayan Savanna ecoregion, about 30% of natural habitats have been lost, large felids have been eradicated from most of the region, and the impact of anthropogenic threats over the smaller species that remain is unknown. To develop management strategies, it is important to enhance knowledge about species population structure and landscape connectivity, particularly when land-use change will continue and intensify in the next years. In this study, we evaluate the population structure and gene flow of Geoffroy’s cat in the Uruguayan Savanna ecoregion. We generated a matrix of 11 microsatellite loci for 70 individuals. Based on Bayesian approaches we found that within the Uruguayan Savanna, Geoffroy’s cat shows high levels of genetic variability and no population structure. However, we observed genetic differences between individuals from the Uruguayan Savanna and those from the contiguous ecoregion, the Argentinian Humid Pampa. Four first-generation migrants from Humid Pampa were identified in the Uruguayan Savanna, suggesting a stronger gene flow in the west-east direction. We detected a past bottleneck followed by a subsequent recovery in Geoffroy’s cat populations in both ecoregions. These results lay the groundwork to understand the population dynamics and conservation status of Geoffroy’s cat in the Uruguayan Savanna ecoregion, and provide baseline data to establish population monitoring.
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Affiliation(s)
- Nadia Bou
- Departamento de Biodiversidad y Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Avenida Italia 3318, 11600 Montevideo, Uruguay
| | - Álvaro Soutullo
- Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional del Este, Universidad de la República, Calle Tacuarembó esquina Bvar. Artigas, 20000 Maldonado, Uruguay
| | - Daniel Hernández
- Laboratorio de Control Ambiental, Polo Educativo Tecnológico Arrayanes, Camino de los Arrayanes km 7, 20200 Piriápolis, Uruguay
| | - Natalia Mannise
- Departamento de Biodiversidad y Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Avenida Italia 3318, 11600 Montevideo, Uruguay
| | - Susana González
- Departamento de Biodiversidad y Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Avenida Italia 3318, 11600 Montevideo, Uruguay
| | - Lucía Bartesaghi
- Departamento de Biodiversidad y Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Avenida Italia 3318, 11600 Montevideo, Uruguay
| | - Javier Pereira
- Grupo de Genética y Ecología en Conservación y Biodiversidad, División Mastozoología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Angel Gallardo 470, Ciudad de Buenos Aires, C1405DJR, Argentina
| | - Mariano Merino
- Centro de Bioinvestigaciones, Universidad Nacional del Noroeste de la Provincia de Buenos Aires, CICPBA, Monteagudo 2772, Pergamino, Provincia de Buenos Aires, B2700KIZ, Argentina
| | - Caroline Espinosa
- Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, prédio 43435, Bairro Agronomia, 91501-970Porto Alegre, RS, Brazil
| | - Tatiane C Trigo
- Setor de Mastozoologia, Museu de Ciências Naturais, Secretaria de Meio Ambiente e Infraestrutura, Rua Dr. Salvador França, 1427, CEP 90.690-000 - Porto Alegre, RS, Brazil
| | - Mariana Cosse
- Departamento de Biodiversidad y Genética, Instituto de Investigaciones Biológicas Clemente Estable-Ministerio de Educación y Cultura, Avenida Italia 3318, 11600 Montevideo, Uruguay
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Restoration and Conservation of Priority Areas of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity within an Agricultural Landscape. LAND 2021. [DOI: 10.3390/land10060550] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Land-use and land-cover (LULC) changes are major drivers of biodiversity loss in semi-arid regions, such as the Caatinga biome located in the Northeast of Brazil. We investigated landscape dynamics and fragmentation in an area of the São Francisco Valley in the Brazilian Caatinga biome and measured the effect of these dynamics on ecological, functional and structural connectivity over a 33-year period (1985–2018). We calculated landscape connectivity indices based on graph theory to quantify the effect of further agricultural expansion on ecological connectivity at the landscape scale. We used a multicriteria decision analysis that integrates graph-based connectivity indices at the habitat patch scale, combined with an index of human disturbance to identify patches that, if conserved and restored, preserve the connectivity of the landscape most effectively. In the period studied, agriculture increased at a rate of 2104 ha/year, while native Caatinga vegetation decreased at a rate of 5203 ha/year. Both dense and open Caatinga became more fragmented, with the number of fragments increasing by 85.2% and 28.6%, respectively, whilst the average fragment size decreased by 84.8% and 6.1% for dense and open Caatinga, respectively. If agriculture patches were to expand by a 300 m buffer around each patch, the overall ecological connectivity could be reduced by 6–15%, depending on the species’ (small- to mid-size terrestrial vertebrates) mobility characteristics for which the connectivity indices were calculated. We provided explicit spatial connectivity and fragmentation information for the conservation and restoration of the Caatinga vegetation in the studied area. This information helps with conservation planning in this rapidly changing ecosystem.
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Grattarola F, Rodríguez-Tricot L. Mammals of Paso Centurión, an area with relicts of Atlantic Forest in Uruguay. NEOTROPICAL BIOLOGY AND CONSERVATION 2020. [DOI: 10.3897/neotropical.15.e53062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Paso Centurión is one of the most diverse areas of Uruguay. It is legally protected at local and national level, however, there are different interests competing for its land use and management. With the aim to document the biodiversity of the area together with the local people, the NGO JULANA has been conducting a participatory monitoring process with camera traps since 2013. Here, we present a list of 23 medium and large-size mammal species documented in the area and a standardised dataset of occurrence records. Top observations include the last Chrysocyon brachyurus seen in Uruguay, the first record of Herpailurus yagouaroundi in the country and the second report of Leopardus munoai in the area. We also highlight the frequent observation of numerous rare species such as Tamandua tetradactyla, Leopardus wiedii, Cabassous tatouay, Coendou spinosus and Cuniculus paca. Although the cameras were located within only a few metres of the houses of the local people, some of the rarest and most elusive species in the country were reported. This suggests a possible coexistence between people – their socio-economic practices – and nature in the area. Our work underlines the importance of the recent inclusion of Paso Centurión and Sierra de Ríos to the National System of Protected Areas under the proposed category of ‘Protected Landscape’. Collectively, in a context of global change and lack of biodiversity data on species distribution, we emphasise the value of these records for the knowledge of mammals in Uruguay and the need to extend and continue monitoring this area.
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