Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach

Autores
Pereyra, Maria Eugenia; Bona, Paula; Siroski, Pablo Ariel; Chinsamy, Anusuya
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Skeletochronology and growth dynamics are intensively investigated in vertebrate osteohistology. These techniques are par- ticularly important for interpreting the life history of long‐lived species, such as crocodilians. To understand the longevity, growth dynamics, sexual maturity, and sexual dimorphism of caimans we studied an almost complete ontogenetic series of captive and wild specimens of Caiman latirostris from different localities of Argentina. We identified both cyclical and non- cyclical growth marks in juvenile caimans, and we suggest that the latter are associated with environmental stress. By over- lapping the growth marks of different individuals, we were able to estimate the minimum age of each specimen. Variations in growth rate are evident in different bones, with the femur and scapula having the highest growth rates, while the fibula and pubis have much slower growth rates. We were able to determine the approximate age of sexual maturity from growth curves deduced from osteohistology, which concurred with those assessed in ecological studies. Additionally based on the growth curves we were able to document different growth dynamics which may be related to sexual dimorphism. This study provides valuable insights into the life history and ecological dynamics of crocodilians, shedding light on their growth patterns, attainment of sexual maturity, and the influence of environmental factors on growth. Furthermore it documents the intra- specific and interelemental osteohistological variation in crocodilians and has direct implications for studies that assess the life history of extinct archosaurs and other sauropsids.
Fil: Pereyra, Maria Eugenia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Siroski, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina
Fil: Chinsamy, Anusuya. University of Cape Town; Sudáfrica
Materia
growth dynamics
skeletochronology
osteohistology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/257720
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological ApproachPereyra, Maria EugeniaBona, PaulaSiroski, Pablo ArielChinsamy, Anusuyagrowth dynamicsskeletochronologyosteohistologyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Skeletochronology and growth dynamics are intensively investigated in vertebrate osteohistology. These techniques are par- ticularly important for interpreting the life history of long‐lived species, such as crocodilians. To understand the longevity, growth dynamics, sexual maturity, and sexual dimorphism of caimans we studied an almost complete ontogenetic series of captive and wild specimens of Caiman latirostris from different localities of Argentina. We identified both cyclical and non- cyclical growth marks in juvenile caimans, and we suggest that the latter are associated with environmental stress. By over- lapping the growth marks of different individuals, we were able to estimate the minimum age of each specimen. Variations in growth rate are evident in different bones, with the femur and scapula having the highest growth rates, while the fibula and pubis have much slower growth rates. We were able to determine the approximate age of sexual maturity from growth curves deduced from osteohistology, which concurred with those assessed in ecological studies. Additionally based on the growth curves we were able to document different growth dynamics which may be related to sexual dimorphism. This study provides valuable insights into the life history and ecological dynamics of crocodilians, shedding light on their growth patterns, attainment of sexual maturity, and the influence of environmental factors on growth. Furthermore it documents the intra- specific and interelemental osteohistological variation in crocodilians and has direct implications for studies that assess the life history of extinct archosaurs and other sauropsids.Fil: Pereyra, Maria Eugenia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Siroski, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; ArgentinaFil: Chinsamy, Anusuya. University of Cape Town; SudáfricaWiley-liss, div John Wiley & Sons Inc.2024-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/257720Pereyra, Maria Eugenia; Bona, Paula; Siroski, Pablo Ariel; Chinsamy, Anusuya; Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach; Wiley-liss, div John Wiley & Sons Inc.; Journal of Morphology; 286; 1; 12-2024; 1-220362-2525CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/jmor.70010info:eu-repo/semantics/altIdentifier/doi/10.1002/jmor.70010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:02:20Zoai:ri.conicet.gov.ar:11336/257720instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:02:20.551CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
title Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
spellingShingle Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
Pereyra, Maria Eugenia
growth dynamics
skeletochronology
osteohistology
title_short Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
title_full Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
title_fullStr Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
title_full_unstemmed Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
title_sort Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach
dc.creator.none.fl_str_mv Pereyra, Maria Eugenia
Bona, Paula
Siroski, Pablo Ariel
Chinsamy, Anusuya
author Pereyra, Maria Eugenia
author_facet Pereyra, Maria Eugenia
Bona, Paula
Siroski, Pablo Ariel
Chinsamy, Anusuya
author_role author
author2 Bona, Paula
Siroski, Pablo Ariel
Chinsamy, Anusuya
author2_role author
author
author
dc.subject.none.fl_str_mv growth dynamics
skeletochronology
osteohistology
topic growth dynamics
skeletochronology
osteohistology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Skeletochronology and growth dynamics are intensively investigated in vertebrate osteohistology. These techniques are par- ticularly important for interpreting the life history of long‐lived species, such as crocodilians. To understand the longevity, growth dynamics, sexual maturity, and sexual dimorphism of caimans we studied an almost complete ontogenetic series of captive and wild specimens of Caiman latirostris from different localities of Argentina. We identified both cyclical and non- cyclical growth marks in juvenile caimans, and we suggest that the latter are associated with environmental stress. By over- lapping the growth marks of different individuals, we were able to estimate the minimum age of each specimen. Variations in growth rate are evident in different bones, with the femur and scapula having the highest growth rates, while the fibula and pubis have much slower growth rates. We were able to determine the approximate age of sexual maturity from growth curves deduced from osteohistology, which concurred with those assessed in ecological studies. Additionally based on the growth curves we were able to document different growth dynamics which may be related to sexual dimorphism. This study provides valuable insights into the life history and ecological dynamics of crocodilians, shedding light on their growth patterns, attainment of sexual maturity, and the influence of environmental factors on growth. Furthermore it documents the intra- specific and interelemental osteohistological variation in crocodilians and has direct implications for studies that assess the life history of extinct archosaurs and other sauropsids.
Fil: Pereyra, Maria Eugenia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Siroski, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Ciencias Veterinarias del Litoral. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Instituto de Ciencias Veterinarias del Litoral; Argentina
Fil: Chinsamy, Anusuya. University of Cape Town; Sudáfrica
description Skeletochronology and growth dynamics are intensively investigated in vertebrate osteohistology. These techniques are par- ticularly important for interpreting the life history of long‐lived species, such as crocodilians. To understand the longevity, growth dynamics, sexual maturity, and sexual dimorphism of caimans we studied an almost complete ontogenetic series of captive and wild specimens of Caiman latirostris from different localities of Argentina. We identified both cyclical and non- cyclical growth marks in juvenile caimans, and we suggest that the latter are associated with environmental stress. By over- lapping the growth marks of different individuals, we were able to estimate the minimum age of each specimen. Variations in growth rate are evident in different bones, with the femur and scapula having the highest growth rates, while the fibula and pubis have much slower growth rates. We were able to determine the approximate age of sexual maturity from growth curves deduced from osteohistology, which concurred with those assessed in ecological studies. Additionally based on the growth curves we were able to document different growth dynamics which may be related to sexual dimorphism. This study provides valuable insights into the life history and ecological dynamics of crocodilians, shedding light on their growth patterns, attainment of sexual maturity, and the influence of environmental factors on growth. Furthermore it documents the intra- specific and interelemental osteohistological variation in crocodilians and has direct implications for studies that assess the life history of extinct archosaurs and other sauropsids.
publishDate 2024
dc.date.none.fl_str_mv 2024-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/257720
Pereyra, Maria Eugenia; Bona, Paula; Siroski, Pablo Ariel; Chinsamy, Anusuya; Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach; Wiley-liss, div John Wiley & Sons Inc.; Journal of Morphology; 286; 1; 12-2024; 1-22
0362-2525
CONICET Digital
CONICET
url http://hdl.handle.net/11336/257720
identifier_str_mv Pereyra, Maria Eugenia; Bona, Paula; Siroski, Pablo Ariel; Chinsamy, Anusuya; Analyzing the Life History of Caimans: The Growth Dynamics of Caiman latirostris From an Osteohistological Approach; Wiley-liss, div John Wiley & Sons Inc.; Journal of Morphology; 286; 1; 12-2024; 1-22
0362-2525
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/jmor.70010
info:eu-repo/semantics/altIdentifier/doi/10.1002/jmor.70010
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-liss, div John Wiley & Sons Inc.
publisher.none.fl_str_mv Wiley-liss, div John Wiley & Sons Inc.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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