Home range and habitat use of two sympatric crocodylians (Melanosuchus Niger and Caiman yacare) under changing habitat conditions

Paola de la Quintana; James Aparicio; Luis F. Pacheco

doi:10.1163/15685381-bja10027

Home range and habitat use of two sympatric crocodylians (Melanosuchus Niger and Caiman yacare) under changing habitat conditions

Paola de la Quintana, James Aparicio, Luis F. Pacheco

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We used radio-telemetry to record how Caiman yacare (Cy) and Melanosuchus Niger (Mn) responded to the intrusion of the Maniqui river into Cedral Lagoon in the Bolivian Amazon. Nine M. Niger and 3 C. yacare were followed between December 2015 and May 2016. Both species showed a gradual reduction in mean monthly range from December (19.96 ha Mn and 1.74 ha Cy) to May 2016 (0.08 ha Mn and 0.24 ha Cy). Habitat use was fairly constant throughout the months for both species, Melanosuchus Niger used mainly open swampy forests and Cyperaceae Marshes, while C. yacare used more islands and flooded grasslands. This study shows that both species of caimans responded to changes in depth and vegetation types, as their habitat as a whole was changed by river intrusion.

Original language	English
Pages (from-to)	115-123
Number of pages	9
Journal	Amphibia - Reptilia
Volume	42
Issue number	1
DOIs	https://doi.org/10.1163/15685381-bja10027
State	Published - 2020

Bibliographical note

Publisher Copyright:
© Koninklijke Brill NV, Leiden, 2020.

Keywords

Behavioral response
Bolivia
Caimans
Habitat changes
Movements

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10.1163/15685381-bja10027

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title = "Home range and habitat use of two sympatric crocodylians (Melanosuchus Niger and Caiman yacare) under changing habitat conditions",

abstract = "We used radio-telemetry to record how Caiman yacare (Cy) and Melanosuchus Niger (Mn) responded to the intrusion of the Maniqui river into Cedral Lagoon in the Bolivian Amazon. Nine M. Niger and 3 C. yacare were followed between December 2015 and May 2016. Both species showed a gradual reduction in mean monthly range from December (19.96 ha Mn and 1.74 ha Cy) to May 2016 (0.08 ha Mn and 0.24 ha Cy). Habitat use was fairly constant throughout the months for both species, Melanosuchus Niger used mainly open swampy forests and Cyperaceae Marshes, while C. yacare used more islands and flooded grasslands. This study shows that both species of caimans responded to changes in depth and vegetation types, as their habitat as a whole was changed by river intrusion.",

keywords = "Behavioral response, Bolivia, Caimans, Habitat changes, Movements",

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doi = "10.1163/15685381-bja10027",

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AU - de la Quintana, Paola

AU - Aparicio, James

AU - Pacheco, Luis F.

N1 - Publisher Copyright: © Koninklijke Brill NV, Leiden, 2020.

PY - 2020

Y1 - 2020

N2 - We used radio-telemetry to record how Caiman yacare (Cy) and Melanosuchus Niger (Mn) responded to the intrusion of the Maniqui river into Cedral Lagoon in the Bolivian Amazon. Nine M. Niger and 3 C. yacare were followed between December 2015 and May 2016. Both species showed a gradual reduction in mean monthly range from December (19.96 ha Mn and 1.74 ha Cy) to May 2016 (0.08 ha Mn and 0.24 ha Cy). Habitat use was fairly constant throughout the months for both species, Melanosuchus Niger used mainly open swampy forests and Cyperaceae Marshes, while C. yacare used more islands and flooded grasslands. This study shows that both species of caimans responded to changes in depth and vegetation types, as their habitat as a whole was changed by river intrusion.

AB - We used radio-telemetry to record how Caiman yacare (Cy) and Melanosuchus Niger (Mn) responded to the intrusion of the Maniqui river into Cedral Lagoon in the Bolivian Amazon. Nine M. Niger and 3 C. yacare were followed between December 2015 and May 2016. Both species showed a gradual reduction in mean monthly range from December (19.96 ha Mn and 1.74 ha Cy) to May 2016 (0.08 ha Mn and 0.24 ha Cy). Habitat use was fairly constant throughout the months for both species, Melanosuchus Niger used mainly open swampy forests and Cyperaceae Marshes, while C. yacare used more islands and flooded grasslands. This study shows that both species of caimans responded to changes in depth and vegetation types, as their habitat as a whole was changed by river intrusion.

KW - Behavioral response

KW - Bolivia

KW - Caimans

KW - Habitat changes

KW - Movements

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JO - Amphibia - Reptilia

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IS - 1

ER -

Home range and habitat use of two sympatric crocodylians (Melanosuchus Niger and Caiman yacare) under changing habitat conditions

Abstract

Bibliographical note

Keywords

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