Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado
The potential distribution of a cryptic, naturally rare large mammal, the giant armadillo Priodontes maximus, was explored in fragments of Cerrado and Atlantic Forest in the state of Mato Grosso do Sul (259,641 km2) Brazil. Watersheds (N = 344) throughout the state were surveyed for evidence of the...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Perspectives in Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2530064421000018 |
| _version_ | 1818579837106782208 |
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| author | Katia Maria Paschoaletto Micchi de Barros Ferraz Bruna Gomes de Oliveira Nina Attias Arnaud Leonard Jean Desbiez |
| author_facet | Katia Maria Paschoaletto Micchi de Barros Ferraz Bruna Gomes de Oliveira Nina Attias Arnaud Leonard Jean Desbiez |
| author_sort | Katia Maria Paschoaletto Micchi de Barros Ferraz |
| collection | DOAJ |
| description | The potential distribution of a cryptic, naturally rare large mammal, the giant armadillo Priodontes maximus, was explored in fragments of Cerrado and Atlantic Forest in the state of Mato Grosso do Sul (259,641 km2) Brazil. Watersheds (N = 344) throughout the state were surveyed for evidence of the species with 164 confirmed presences and 180 absences. A total of 144 independent presence points were used to model the current potential distribution of the species using the Maxent algorithm with 30 possible explanatory variables. Suitable and unsuitable areas, average patch size of suitable habitats and conversion rate of habitat from 1985 to 2018 were also calculated. Results highlight the severe fragmentation level of the suitable areas left for the giant armadillos, with suitable habitat patches (forest and savanna) surrounded by an agricultural matrix. Furthermore, only four suitable patches are larger than 100 km2 (132.63 ± 32.04 km2). Due to the species low population growth rate it is possible that individuals recorded are part of declining or functionally extinct populations. Further studies on the density and population trends of giant armadillos within this fragmented landscape will be key to understanding the potential long-term persistence of giant armadillos in the degraded Cerrado of MS. |
| first_indexed | 2024-12-16T07:08:02Z |
| format | Article |
| id | doaj.art-d53bd4029f2f463e82b1d538f5b18e45 |
| institution | Directory Open Access Journal |
| issn | 2530-0644 |
| language | English |
| last_indexed | 2024-12-16T07:08:02Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Perspectives in Ecology and Conservation |
| spelling | doaj.art-d53bd4029f2f463e82b1d538f5b18e452022-12-21T22:39:59ZengElsevierPerspectives in Ecology and Conservation2530-06442021-01-011914352Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian CerradoKatia Maria Paschoaletto Micchi de Barros Ferraz0Bruna Gomes de Oliveira1Nina Attias2Arnaud Leonard Jean Desbiez3Laboratório de Ecologia, Manejo e Conservação de Fauna Silvestre (LEMaC), Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Av. Pádua Dias 11, 13418-900, Piracicaba, São Paulo, BrazilInstituto de Conservação de Animais Silvestres (ICAS), Rua Licuala 622, 79046150, Campo Grande, Mato Grosso do Sul, BrazilInstituto de Conservação de Animais Silvestres (ICAS), Rua Licuala 622, 79046150, Campo Grande, Mato Grosso do Sul, BrazilInstituto de Conservação de Animais Silvestres (ICAS), Rua Licuala 622, 79046150, Campo Grande, Mato Grosso do Sul, Brazil; Instituto de Pesquisas Ecológicas (IPÊ), Rodovia Dom Pedro I, km 47, 12960-000, Nazaré Paulista, São Paulo, Brazil; Royal Zoological Society of Scotland (RZSS), Murrayfield, Edinburgh, EH12 6TS, United Kingdom; Corresponding author at: ICAS—Instituto de Conservação de Animais Silvestres Founder and Coordinator of the Giant Armadillo Conservation Program and Anteaters & Highways, Rua Licuala, 622, CEP: 79046-150, Campo Grande, Mato Grosso do Sul, Brazil.The potential distribution of a cryptic, naturally rare large mammal, the giant armadillo Priodontes maximus, was explored in fragments of Cerrado and Atlantic Forest in the state of Mato Grosso do Sul (259,641 km2) Brazil. Watersheds (N = 344) throughout the state were surveyed for evidence of the species with 164 confirmed presences and 180 absences. A total of 144 independent presence points were used to model the current potential distribution of the species using the Maxent algorithm with 30 possible explanatory variables. Suitable and unsuitable areas, average patch size of suitable habitats and conversion rate of habitat from 1985 to 2018 were also calculated. Results highlight the severe fragmentation level of the suitable areas left for the giant armadillos, with suitable habitat patches (forest and savanna) surrounded by an agricultural matrix. Furthermore, only four suitable patches are larger than 100 km2 (132.63 ± 32.04 km2). Due to the species low population growth rate it is possible that individuals recorded are part of declining or functionally extinct populations. Further studies on the density and population trends of giant armadillos within this fragmented landscape will be key to understanding the potential long-term persistence of giant armadillos in the degraded Cerrado of MS.http://www.sciencedirect.com/science/article/pii/S2530064421000018ConservationMaxentPlanningPriodontes maximusHabitat suitability |
| spellingShingle | Katia Maria Paschoaletto Micchi de Barros Ferraz Bruna Gomes de Oliveira Nina Attias Arnaud Leonard Jean Desbiez Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado Perspectives in Ecology and Conservation Conservation Maxent Planning Priodontes maximus Habitat suitability |
| title | Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado |
| title_full | Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado |
| title_fullStr | Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado |
| title_full_unstemmed | Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado |
| title_short | Species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the Brazilian Cerrado |
| title_sort | species distribution model reveals only highly fragmented suitable patches remaining for giant armadillo in the brazilian cerrado |
| topic | Conservation Maxent Planning Priodontes maximus Habitat suitability |
| url | http://www.sciencedirect.com/science/article/pii/S2530064421000018 |
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