1
|
Aziz MA, Smith O, Jackson HA, Tollington S, Darlow S, Barlow A, Islam MA, Groombridge JJ. Phylogeography of Panthera tigris in the mangrove forest of the Sundarbans. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
2
|
Eriksson CE, Kantek DLZ, Miyazaki SS, Morato RG, Dos Santos-Filho M, Ruprecht JS, Peres CA, Levi T. Extensive aquatic subsidies lead to territorial breakdown and high density of an apex predator. Ecology 2021; 103:e03543. [PMID: 34841521 DOI: 10.1002/ecy.3543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/27/2021] [Accepted: 09/22/2021] [Indexed: 01/25/2023]
Abstract
Energetic subsidies between terrestrial and aquatic ecosystems can strongly influence food webs and population dynamics. Our objective was to study how aquatic subsidies affected jaguar (Panthera onca) diet, sociality, and population density in a seasonally flooded protected area in the Brazilian Pantanal. The diet (n = 138 scats) was dominated by fish (46%) and aquatic reptiles (55%), representing the first jaguar population known to feed extensively on fish and to minimally consume mammals (11%). These aquatic subsidies supported the highest jaguar population density estimate to date (12.4 jaguars/100 km²) derived from camera traps (8,065 trap nights) and GPS collars (n = 13). Contrary to their mostly solitary behavior elsewhere, we documented social interactions previously unobserved between same-sex adults including cooperative fishing, co-traveling, and play. Our study demonstrates that aquatic subsidies, frequently described in omnivores, can also transform the ecology and behavior of obligate carnivores.
Collapse
Affiliation(s)
- Charlotte E Eriksson
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Daniel L Z Kantek
- Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO), Estação Ecológica de Taiamã (EET), Cáceres, Mato Grosso, Brazil
| | - Selma S Miyazaki
- Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO), Estação Ecológica de Taiamã (EET), Cáceres, Mato Grosso, Brazil
| | - Ronaldo G Morato
- Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO), Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros (CENAP), Atibaia, São Paulo, Brazil
| | - Manoel Dos Santos-Filho
- Departamento de Ciências Biológicas, Universidade do Estado de Mato Grosso (UNEMAT), Cáceres, Mato Grosso, Brazil
| | - Joel S Ruprecht
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Carlos A Peres
- Centre for Ecology, Evolution and Conservation, School of Environmental Sciences, University of East Anglia, Norfolk, Norwich, NR4 7TJ, UK.,Instituto Juruá, Rua das Papoulas 97, Manaus, Brazil
| | - Taal Levi
- Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon, 97331, USA
| |
Collapse
|