Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/jzo.13015 http://hdl.handle.net/11449/237879 |
Resumo: | The common lancehead Bothrops jararaca is widespread in the Atlantic Forest in Brazil. The species is known to show a marked sexual dimorphism pattern, with the female being larger than the male. However, most efforts in clarifying morphological variation between the sexes are often focused on a single population. In this paper, we investigate how sexual dimorphism and ontogenetic trajectories vary among populations as well as the ontogenetic trajectories of B. jararaca. We analyzed 211 specimens from a coastal and a highland population and measured 17 morphological traits, including linear and meristic characteristics, and the analysis revealed a clear but variable effect of sex and population. Females were larger than males in all evaluated populations. Furthermore, females in the coastal population were generally smaller than in the highland population but had significantly more scales. Widespread species often experience differential environmental pressures even in terms of biotic and abiotic factors. We attribute the results found herein to specificities in prey availability and climatic conditions which affect the ontogenetic pattern between the sexes and the populations, resulting in specific sexual dimorphism patterns. |
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Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patternsGeographic variationAllometrygrowthMorphometryBothrops jararacaSnakesSexual dimorphismThe common lancehead Bothrops jararaca is widespread in the Atlantic Forest in Brazil. The species is known to show a marked sexual dimorphism pattern, with the female being larger than the male. However, most efforts in clarifying morphological variation between the sexes are often focused on a single population. In this paper, we investigate how sexual dimorphism and ontogenetic trajectories vary among populations as well as the ontogenetic trajectories of B. jararaca. We analyzed 211 specimens from a coastal and a highland population and measured 17 morphological traits, including linear and meristic characteristics, and the analysis revealed a clear but variable effect of sex and population. Females were larger than males in all evaluated populations. Furthermore, females in the coastal population were generally smaller than in the highland population but had significantly more scales. Widespread species often experience differential environmental pressures even in terms of biotic and abiotic factors. We attribute the results found herein to specificities in prey availability and climatic conditions which affect the ontogenetic pattern between the sexes and the populations, resulting in specific sexual dimorphism patterns.Inst Butantan, Lab Ecol & Evolucao, BR-05593900 Sao Paulo, SP, BrazilUniv Estadual Julio de Mesquita Filho, Inst Biociencias Letras & Exatas, Programa Posgrad Biol Anim, Sao Jose Do Rio Preto, SP, BrazilUniv Sao Paulo, Inst Biociencias, Sao Paulo, SP, BrazilUniv Estadual Julio de Mesquita Filho, Inst Biociencias Letras & Exatas, Programa Posgrad Biol Anim, Sao Jose Do Rio Preto, SP, BrazilWiley-BlackwellInst ButantanUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Siqueira, L. H. C. [UNESP]Piantoni, C.Marques, O. A. [UNESP]2022-11-30T13:47:28Z2022-11-30T13:47:28Z2022-09-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14http://dx.doi.org/10.1111/jzo.13015Journal Of Zoology. Hoboken: Wiley, 14 p., 2022.0952-8369http://hdl.handle.net/11449/23787910.1111/jzo.13015WOS:000854867800001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Zoologyinfo:eu-repo/semantics/openAccess2022-11-30T13:47:29Zoai:repositorio.unesp.br:11449/237879Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-11-30T13:47:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
title |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
spellingShingle |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns Siqueira, L. H. C. [UNESP] Geographic variation Allometry growth Morphometry Bothrops jararaca Snakes Sexual dimorphism |
title_short |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
title_full |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
title_fullStr |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
title_full_unstemmed |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
title_sort |
Morphological variation in the common lancehead populations: Sexual dimorphism and ontogenetic patterns |
author |
Siqueira, L. H. C. [UNESP] |
author_facet |
Siqueira, L. H. C. [UNESP] Piantoni, C. Marques, O. A. [UNESP] |
author_role |
author |
author2 |
Piantoni, C. Marques, O. A. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Inst Butantan Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Siqueira, L. H. C. [UNESP] Piantoni, C. Marques, O. A. [UNESP] |
dc.subject.por.fl_str_mv |
Geographic variation Allometry growth Morphometry Bothrops jararaca Snakes Sexual dimorphism |
topic |
Geographic variation Allometry growth Morphometry Bothrops jararaca Snakes Sexual dimorphism |
description |
The common lancehead Bothrops jararaca is widespread in the Atlantic Forest in Brazil. The species is known to show a marked sexual dimorphism pattern, with the female being larger than the male. However, most efforts in clarifying morphological variation between the sexes are often focused on a single population. In this paper, we investigate how sexual dimorphism and ontogenetic trajectories vary among populations as well as the ontogenetic trajectories of B. jararaca. We analyzed 211 specimens from a coastal and a highland population and measured 17 morphological traits, including linear and meristic characteristics, and the analysis revealed a clear but variable effect of sex and population. Females were larger than males in all evaluated populations. Furthermore, females in the coastal population were generally smaller than in the highland population but had significantly more scales. Widespread species often experience differential environmental pressures even in terms of biotic and abiotic factors. We attribute the results found herein to specificities in prey availability and climatic conditions which affect the ontogenetic pattern between the sexes and the populations, resulting in specific sexual dimorphism patterns. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-30T13:47:28Z 2022-11-30T13:47:28Z 2022-09-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1111/jzo.13015 Journal Of Zoology. Hoboken: Wiley, 14 p., 2022. 0952-8369 http://hdl.handle.net/11449/237879 10.1111/jzo.13015 WOS:000854867800001 |
url |
http://dx.doi.org/10.1111/jzo.13015 http://hdl.handle.net/11449/237879 |
identifier_str_mv |
Journal Of Zoology. Hoboken: Wiley, 14 p., 2022. 0952-8369 10.1111/jzo.13015 WOS:000854867800001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Zoology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14 |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649713530994688 |