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Souza-Oliveira AF, Zuquim G, Martins LF, Bandeira LN, Diele-Viegas LM, Cavalcante VH, Baccaro F, Colli GR, Tuomisto H, Werneck FP. The role of environmental gradients and microclimates in structuring communities and functional groups of lizards in a rainforest-savanna transition area. PeerJ 2024; 12:e16986. [PMID: 38685936 PMCID: PMC11057429 DOI: 10.7717/peerj.16986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 01/30/2024] [Indexed: 05/02/2024] Open
Abstract
Environmental heterogeneity poses a significant influence on the functional characteristics of species and communities at local scales. Environmental transition zones, such as at the savanna-forest borders, can act as regions of ecological tension when subjected to sharp variations in the microclimate. For ectothermic organisms, such as lizards, environmental temperatures directly influence physiological capabilities, and some species use different thermoregulation strategies that produce varied responses to local climatic conditions, which in turn affect species occurrence and community dynamics. In the context of global warming, these various strategies confer different types of vulnerability as well as risks of extinction. To assess the vulnerability of a species and understand the relationships between environmental variations, thermal tolerance of a species and community structure, lizard communities in forest-savanna transition areas of two national parks in the southwestern Amazon were sampled and their thermal functional traits were characterized. Then, we investigated how community structure and functional thermal variation were shaped by two environmental predictors (i.e., microclimates estimated locally and vegetation structure estimated from remote sensing). It was found that the community structure was more strongly predicted by the canopy surface reflectance values obtained via remote sensing than by microclimate variables. Environmental temperatures were not the most important factor affecting the occurrence of species, and the variations in ecothermal traits demonstrated a pattern within the taxonomic hierarchy at the family level. This pattern may indicate a tendency for evolutionary history to indirectly influence these functional features. Considering the estimates of the thermal tolerance range and warming tolerance, thermoconformer lizards are likely to be more vulnerable and at greater risk of extinction due to global warming than thermoregulators. The latter, more associated with open environments, seem to take advantage of their lower vulnerability and occur in both habitat types across the transition, potentially out-competing and further increasing the risk of extinction and vulnerability of forest-adapted thermoconformer lizards in these transitional areas.
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Affiliation(s)
- Alan F. Souza-Oliveira
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisa da Amazonia, Manaus, Amazonas, Brazil
| | - Gabriela Zuquim
- Section for Ecoinformatics and Biodiversity, Department of Biology, Aarhus University, Aarhus, Denmark
- Department of Biology, University of Turku, Turku, Finland
| | - Lidia F. Martins
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisa da Amazonia, Manaus, Amazonas, Brazil
| | - Lucas N. Bandeira
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisa da Amazonia, Manaus, Amazonas, Brazil
| | | | | | - Fabricio Baccaro
- Departamento de Biologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Guarino Rinaldi Colli
- Departamento de Zoologia, Universidade de Brasília, Brasília, Distrito Federal, Brazil
| | - Hanna Tuomisto
- Department of Biology, University of Turku, Turku, Finland
| | - Fernanda P. Werneck
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisa da Amazonia, Manaus, Amazonas, Brazil
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Westeen EP, Martínez‐Fonseca JG, d'Orgeix CA, Walker FM, Sanchez DE, Wang IJ. Dietary niche partitioning of three Sky Island Sceloporus lizards as revealed through DNA metabarcoding. Ecol Evol 2023; 13:e10461. [PMID: 37693939 PMCID: PMC10485322 DOI: 10.1002/ece3.10461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/04/2023] [Accepted: 08/18/2023] [Indexed: 09/12/2023] Open
Abstract
Lizard diets are highly diverse and have contributed to the diversification, biogeographical distributions, and evolution of novel traits across this global radiation. Many parts of a lizard's ecology-including habitat preferences, foraging modes, predation risks, interspecific competition, and thermal constraints, among others-interact to shape diets, and dietary niche partitioning simultaneously contributes to co-occurrence within communities. We used DNA metabarcoding of fecal samples to identify prey items in the diets of three sympatric Sceloporus lizards in the Madrean Sky Islands of Arizona, USA. We found evidence for dietary niche partitioning between interacting species concomitant with their respective ecologies. We also compared diet composition between populations to understand how conserved or plastic species' diets are between different environments. Our findings suggest that habitat generalists are also diet generalists in this system, while the same may be true for specialists. The identification of prey items to much lower taxonomic levels than previously documented further reveals hidden diversity in the diets of these species and underscores the utility of metabarcoding for understanding the full complexity of lizard diets.
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Affiliation(s)
- Erin P. Westeen
- Department of Environmental Science, Policy, and ManagementUniversity of California, BerkeleyBerkeleyCaliforniaUSA
- Museum of Vertebrate ZoologyUniversity of California BerkeleyBerkeleyCaliforniaUSA
| | | | | | - Faith M. Walker
- School of ForestryNorthern Arizona UniversityFlagstaffArizonaUSA
- Pathogen and Microbiome InstituteNorthern Arizona UniversityFlagstaffArizonaUSA
| | - Daniel E. Sanchez
- School of ForestryNorthern Arizona UniversityFlagstaffArizonaUSA
- Pathogen and Microbiome InstituteNorthern Arizona UniversityFlagstaffArizonaUSA
| | - Ian J. Wang
- Department of Environmental Science, Policy, and ManagementUniversity of California, BerkeleyBerkeleyCaliforniaUSA
- Museum of Vertebrate ZoologyUniversity of California BerkeleyBerkeleyCaliforniaUSA
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3
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Alés RG, Acosta JC, Blanco G, Galdeano AP. Effects of habitat perturbation on lizard assemblages in the center-west of the Arid Chaco region, Argentina. AN ACAD BRAS CIENC 2023; 95:e20200927. [PMID: 37646706 DOI: 10.1590/0001-3765202320200927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 05/04/2021] [Indexed: 09/01/2023] Open
Abstract
Several human disturbances contribute to the decrease of vertebrate species' richness and abundance, altering the processes of an ecosystem. We evaluate richness, diversity and relative abundance of species for lizard assemblages at sites with different degrees of perturbation in the center-west of the Arid Chaco region in Argentina. Between 2015 and 2018, six lizard assemblages were sampled monthly -using pitfall traps- in three areas of the Chaco, with a perturbed and an unperturbed (control) replica at each of the areas: (1) Chaco Mountain plain, (2) Chaco Mountain slope, and (3) Chaco Plains, and habitat characteristics of each study site were recorded. We captured 1446 lizards, belonging to 12 species. The perturbed area at the Chaco Mountain plain showed the greatest richness, diversity and abundance of species. In the perturbed Chaco Plains, species abundance decreased by about 50% with respect to the control site. Liolaemus chacoensis was the dominant species at all sites. Some species could be negatively affected by a total loss of arboreal strata, tree trunks and fallen leaves. Structural parameters of lizard assemblages were related to the habitat characteristics; therefore, these results provide information for the conservation and management of lands and lizard assemblages in the Arid Chaco.
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Affiliation(s)
- Rodrigo Gómez Alés
- DIBIOVA (Gabinete Diversidad y Biología de Vertebrados del Árido), Departamento de Biología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
| | - Juan Carlos Acosta
- DIBIOVA (Gabinete Diversidad y Biología de Vertebrados del Árido), Departamento de Biología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
| | - Graciela Blanco
- DIBIOVA (Gabinete Diversidad y Biología de Vertebrados del Árido), Departamento de Biología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
| | - Ana Paula Galdeano
- DIBIOVA (Gabinete Diversidad y Biología de Vertebrados del Árido), Departamento de Biología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
- CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. Ignacio de la Roza 590 (O), Rivadavia, San Juan, Argentina
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4
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de Andrade Lima JH, de Oliveira MAT, de A. Almeida ME, de A. Oliveira PM, de Mello AVA, de Sousa ÍTF, de C. Kokubum MN. Short-term movement is different in two syntopic Tropidurus (Squamata, Tropiduridae) species in a semiarid habitat. J NAT HIST 2022. [DOI: 10.1080/00222933.2022.2147872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- José H. de Andrade Lima
- Programa de Pós-Graduação em Biologia Animal, Centro de Biociências, Universidade Federal de Pernambuco – UFPE, Recife, Brazil
- Laboratório de Herpetologia, Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco-UFPE, Recife, Brazil
- Laboratório de Herpetologia, Unidade Acadêmica de Ciências Biológicas, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, Brazil
| | - Mikael A. T. de Oliveira
- Laboratório de Herpetologia, Unidade Acadêmica de Ciências Biológicas, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, Brazil
| | - Maria E. de A. Almeida
- Laboratório de Herpetologia, Unidade Acadêmica de Ciências Biológicas, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, Brazil
- Programa de Pós-graduação em Ciências Florestais, Centro de Saúde e Tecnologia Geral, Universidade Federal de Campina Grande, Patos, Brazil
| | - Patricia Marques de A. Oliveira
- Programa de Pós-Graduação em Biologia Animal, Centro de Biociências, Universidade Federal de Pernambuco – UFPE, Recife, Brazil
- Laboratório de Herpetologia, Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco-UFPE, Recife, Brazil
| | - Anna V. Albano de Mello
- Laboratório de Herpetologia, Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco-UFPE, Recife, Brazil
| | - Ítalo T. F. de Sousa
- Laboratório de Herpetologia, Unidade Acadêmica de Ciências Biológicas, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, Brazil
| | - Marcelo N. de C. Kokubum
- Laboratório de Herpetologia, Unidade Acadêmica de Ciências Biológicas, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, Brazil
- Programa de Pós-graduação em Ciências Florestais, Centro de Saúde e Tecnologia Geral, Universidade Federal de Campina Grande, Patos, Brazil
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Estadual da Paraíba, Campina Grande, Brazil
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5
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Oitaven LPC, Calado SS, da Costa HN, Cruz GS, Monrós JS, Mesquita DO, Teixeira ÁAC, Teixeira VW, de Moura GJB. Trophic ecology of Gymnodactylus geckoides Spix, 1825 (Squamata, Phyllodactylidae) from Caatinga, Northeastern Brazil. HERPETOZOA 2022. [DOI: 10.3897/herpetozoa.35.e87199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The diet of lizards is mainly composed of arthropods. It can be affected by biotic and abiotic factors, which influence the energy supply provided by the composition of the animal´s diet. The richness and abundance of many arthropod species can be influenced by environmental seasonality, especially in the Caatinga ecoregion, due to the rainfall regimes. The present study aims to describe aspects of the seasonal and morphological variation in the lizard Gymnodactylus geckoides diet and their energy content. We collected 157 individuals (63 females, 68 males, and 26 juveniles) at the Catimbau National Park, Northeastern Brazil, of which 72 were analyzed for the dry season and 59 for the rainy season. Our data indicates Isoptera to be the most common prey in G. geckoides’s diet. Energy content, prey number was higher in the dry season, whereas prey volume and glycogen content increased in the rainy season. Proteins and lipids did not show marked differences. The present study represents the first effort to understand variations in G. geckoide’s trophic ecology, indicating that this specie presents a wide variation in their diet, especially when considering seasonal factors, revealing their needs and restrictions according to prey availability and environmental conditions.
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da Silveira Firmiano EM, Machado‐Santos C, Ribeiro Ricardo Brito A, Sousa BM, Lima Pinheiro N, das Neves Cardoso N, Alves do Nascimento A. Histological study and immunohistochemical location of cytoskeletal proteins in the testis and epididymis of the three species of lizards of the family Leiosauridae (Reptilia: Squamata). ACTA ZOOL-STOCKHOLM 2022. [DOI: 10.1111/azo.12422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Enely Maris da Silveira Firmiano
- Postgraduate Program in Animal Biology, Institute of Biological and Health Sciences Federal Rural University of Rio de Janeiro‐UFRRJ Seropédica Brazil
| | - Clarice Machado‐Santos
- Laboratory of Teaching and Research in Histology and Compared Embryology (LEPHEC) Federal Fluminense University Niterói Brazil
| | - Amanda Ribeiro Ricardo Brito
- Laboratory of Teaching and Research in Histology and Compared Embryology (LEPHEC) Federal Fluminense University Niterói Brazil
| | - Bernadete Maria Sousa
- Herpetology Laboratory, Department of Zoology, Institute of Biological Sciences, Federal University of Juiz de Fora‐UFJF University Campus noc number Juiz de Fora Brazil
| | - Nadja Lima Pinheiro
- Postgraduate Program in Animal Biology, Institute of Biological and Health Sciences Federal Rural University of Rio de Janeiro‐UFRRJ Seropédica Brazil
| | - Nathália das Neves Cardoso
- Postgraduate Program in Animal Biology, Institute of Biological and Health Sciences Federal Rural University of Rio de Janeiro‐UFRRJ Seropédica Brazil
| | - Aparecida Alves do Nascimento
- Postgraduate Program in Animal Biology, Institute of Biological and Health Sciences Federal Rural University of Rio de Janeiro‐UFRRJ Seropédica Brazil
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7
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Maia-Carneiro T, Rocha CFD. Diverging structures, perch heights, temperatures, and levels of sunlight of spatial niche dimensions ease the syntopic life of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata: Tropiduridae). J NAT HIST 2022. [DOI: 10.1080/00222933.2021.2024905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Thiago Maia-Carneiro
- Laboratório de Ecologia de Vertebrados/Vertebrate Ecology Laboratory, Departamento de Ecologia/Department of Ecology, Universidade do Estado do Rio de Janeiro/Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Carlos Frederico Duarte Rocha
- Laboratório de Ecologia de Vertebrados/Vertebrate Ecology Laboratory, Departamento de Ecologia/Department of Ecology, Universidade do Estado do Rio de Janeiro/Rio de Janeiro State University, Rio de Janeiro, Brazil
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8
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Martins LF, Choueri EL, Oliveira AFS, Domingos FMCB, Caetano GHO, Cavalcante VHGL, Leite RN, Fouquet A, Rodrigues MT, Carnaval AC, Colli GR, Werneck FP. Whiptail lizard lineage delimitation and population expansion as windows into the history of Amazonian open ecosystems. SYST BIODIVERS 2021. [DOI: 10.1080/14772000.2021.1953185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Lidia F. Martins
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | - Erik L. Choueri
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | - Alan F. S. Oliveira
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | | | - Gabriel H. O. Caetano
- Mitrani Department of Desert Ecology, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 849900 Midreshet Ben-Gurion, Israel
| | | | - Rafael N. Leite
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | - Antoine Fouquet
- Laboratoire Evolution et Diversité Biologique (EDB), UMR5174, Bâtiment 4R1, 118 Route de Narbonne 31077, Toulouse, France
| | - Miguel T. Rodrigues
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Ana C. Carnaval
- City College of New York and Biology Ph.D. Program, The Graduate Center City University of New York, New York, NY 10031, USA
| | - Guarino R. Colli
- Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Fernanda P. Werneck
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
- Programa de Coleções Científicas Biológicas, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
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9
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Diverging temporal and thermal niche dimensions favor syntopy of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata: Tropiduridae). Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00523-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Silva-da-Silva M, Almeida-Santos DA, Ribeiro S, Recoder RS, Santos AP. Reproductive Biology and Sexual Dimorphism of Gymnophthalmus vanzoi (Squamata, Gymnophthalmidae) in a Population South of the Amazon River, Brazil. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2020. [DOI: 10.2994/sajh-d-17-00025.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Maiume Silva-da-Silva
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, CEP 68035‑110, Santarém, Pará, Brazil
| | - Danilo Augusto Almeida-Santos
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, CEP 68035‑110, Santarém, Pará, Brazil
| | - Síria Ribeiro
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, CEP 68035‑110, Santarém, Pará, Brazil
| | - Renato Sousa Recoder
- Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, trav. 14, 101, Cidade Universitária, CEP 05508‑090, São Paulo, São Paulo, Brazil
| | - Alfredo P. Santos
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, CEP 68035‑110, Santarém, Pará, Brazil
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Gonçalves-Sousa JG, Mesquita DO, Ávila RW. Structure of a Lizard Assemblage in a Semiarid Habitat of the Brazilian Caatinga. HERPETOLOGICA 2019. [DOI: 10.1655/herpetologica-d-19-00026.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- José Guilherme Gonçalves-Sousa
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri, CE 60020-181, Brazil
| | - Daniel Oliveira Mesquita
- Laboratório de Herpetologia, Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, PB 60440-900, Brazil
| | - Robson Waldemar Ávila
- Laboratório de Herpetologia, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
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12
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Caldas FLS, Garda AA, Cavalcanti LBQ, Leite-Filho E, Faria RG, Mesquita DO. Spatial and Trophic Structure of Anuran Assemblages in Environments with Different Seasonal Regimes in the Brazilian Northeast Region. COPEIA 2019. [DOI: 10.1643/ch-18-109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Francis L. S. Caldas
- Departamento de Biologia, Laboratório de Cordados, Universidade Federal de Sergipe, São Cristóvão, SE 49100-000, Brazil; (FLSC) . Send reprint requests to FLSC
| | - Adrian A. Garda
- Departamento de Botânica e Zoologia, Laboratório de Anfíbios e Répteis–LAR, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-900, Brazil
| | - Lucas B. Q. Cavalcanti
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB 58059-000, Brazil
| | - Edinaldo Leite-Filho
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB 58059-000, Brazil
| | - Renato G. Faria
- Departamento de Biologia, Laboratório de Cordados, Universidade Federal de Sergipe, São Cristóvão, SE 49100-000, Brazil; (FLSC) . Send reprint requests to FLSC
| | - Daniel O. Mesquita
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB 58059-000, Brazil
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13
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ENTIAUSPE-NETO OMARM, AZEVEDO WEVERTONS, PEREIRA VALQUIRIAO, ABEGG ARTHURD, ROCHA ANDERSONM, LOEBMANN DANIEL. New records of the rare Troschel’s Pampas Snake, Phimophis guianensis (Serpentes: Dipsadidae) in Brazil. AN ACAD BRAS CIENC 2018; 90:3023-3029. [DOI: 10.1590/0001-3765201820180132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 04/10/2018] [Indexed: 11/21/2022] Open
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14
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Geographical Ecology ofTropidurus hispidus(Squamata: Tropiduridae) andCnemidophorus ocellifer(Squamata: Teiidae) in a Neotropical Region: A Comparison among Atlantic Forest, Caatinga, and Coastal Populations. J HERPETOL 2018. [DOI: 10.1670/16-018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Lima V, Brito S, Araujo Filho J, Teles D, Ribeiro S, Teixeira A, Pereira A, Almeida W. Raillietiella Mottae (Pentastomida: Raillietiellidae) Parasitizing Four Species of Gekkota Lizards (Gekkonidae and Phyllodactylidae) in the Brazilian Caatinga. Helminthologia 2018; 55:140-145. [PMID: 31662640 PMCID: PMC6799553 DOI: 10.2478/helm-2018-0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 01/26/2018] [Indexed: 11/20/2022] Open
Abstract
We tested the role of sex, size, and mass of the lizards Phyllopezus pollicaris, Gymnodactylus geckoides, Hemidactylus agrius, Lygodactylus klugei, and Hemidactylus brasilianus on the rates of pentastomid infection in the Brazilian Caatinga. We collected 355 individuals of these five species, of which four (prevalence of infection: P. pollicaris 15.9 %, G. geckoides 1.4 %, H. agrius 28.57 %, and H. brasilianus 4.16 %) were infected by Raillietiella mottae. Parasite abundance was influenced by host body size and mass only in P. pollicaris. Host sex did not infl uence the abundance of parasites in any species. Hemidactylus agrius, G. geckoides, and H. brasilianus are three new host records for pentastomids.
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Affiliation(s)
- V.F. Lima
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri – URCA, Rua Cel. Antônio Luiz, 1161, Campus do Pimenta, 63105-000, Crato, Ceará, Brazil
| | - S.V. Brito
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão – UFMA, Boa Vista, CEP 65500-000, Chapadinha, Maranhão, Brazil
| | - J.A. Araujo Filho
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Departamento de Sistemática e Ecologia – DSE, Centro de Ciências Exatas e da Natureza – CCEN, Universidade Federal da Paraíba – UFPB, Cidade Universitária, Campus I, CEP 58059-900, João Pessoa, Paraíba, Brazil
| | - D.A. Teles
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Departamento de Sistemática e Ecologia – DSE, Centro de Ciências Exatas e da Natureza – CCEN, Universidade Federal da Paraíba – UFPB, Cidade Universitária, Campus I, CEP 58059-900, João Pessoa, Paraíba, Brazil
| | - S.C. Ribeiro
- Instituto de Formação de Educadores - IFE, Universidade Federal do Cariri - UFCA, Campus Brejo Santo, CEP 63260-000, Brejo Santo, Ceará, Brazil
| | - A.A.M. Teixeira
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Departamento de Sistemática e Ecologia – DSE, Centro de Ciências Exatas e da Natureza – CCEN, Universidade Federal da Paraíba – UFPB, Cidade Universitária, Campus I, CEP 58059-900, João Pessoa, Paraíba, Brazil
| | - A.M.A. Pereira
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri – URCA, Rua Cel. Antônio Luiz, 1161, Campus do Pimenta, 63105-000, Crato, Ceará, Brazil
| | - W.O. Almeida
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri – URCA, Rua Cel. Antônio Luiz, 1161, Campus do Pimenta, 63105-000, Crato, Ceará, Brazil
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Abstract
We summarize thermal-biology data of 69 species of Amazonian lizards, including mode of thermoregulation and field-active body temperatures (Tb). We also provide new data on preferred temperatures (Tpref), voluntary and thermal-tolerance ranges, and thermal-performance curves (TPC's) for 27 species from nine sites in the Brazilian Amazonia. We tested for phylogenetic signal and pairwise correlations among thermal traits. We found that species generally categorized as thermoregulators have the highest mean values for all thermal traits, and broader ranges for Tb, critical thermal maximum (CTmax) and optimal (Topt) temperatures. Species generally categorized as thermoconformers have large ranges for Tpref, critical thermal minimum (CTmin), and minimum voluntary (VTmin) temperatures for performance. Despite these differences, our results show that all thermal characteristics overlap between both groups and suggest that Amazonian lizards do not fit into discrete thermoregulatory categories. The traits are all correlated, with the exceptions of (1) Topt, which does not correlate with CTmax, and (2) CTmin, and correlates only with Topt. Weak phylogenetic signals for Tb, Tpref and VTmin indicate that these characters may be shaped by local environmental conditions and influenced by phylogeny. We found that open-habitat species perform well under present environmental conditions, without experiencing detectable thermal stress from high environmental temperatures induced in lab experiments. For forest-dwelling lizards, we expect warming trends in Amazonia to induce thermal stress, as temperatures surpass the thermal tolerances for these species.
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Novosolov M, Rodda GH, Gainsbury AM, Meiri S. Dietary niche variation and its relationship to lizard population density. J Anim Ecol 2017; 87:285-292. [PMID: 28944457 DOI: 10.1111/1365-2656.12762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 09/16/2017] [Indexed: 11/28/2022]
Abstract
Insular species are predicted to broaden their niches, in response to having fewer competitors. They can thus exploit a greater proportion of the resource spectrum. In turn, broader niches are hypothesized to facilitate (or be a consequence of) increased population densities. We tested whether insular lizards have broader dietary niches than mainland species, how it relates to competitor and predator richness, and the nature of the relationship between population density and dietary niche breadth. We collected population density and dietary niche breadth data for 36 insular and 59 mainland lizard species, and estimated competitor and predator richness at the localities where diet data were collected. We estimated dietary niche shift by comparing island species to their mainland relatives. We controlled for phylogenetic relatedness, body mass and the size of the plots over which densities were estimated. We found that island and mainland species had similar niche breadths. Dietary niche breadth was unrelated to competitor and predator richness, on both islands and the mainland. Population density was unrelated to dietary niche breadth across island and mainland populations. Our results indicate that dietary generalism is not an effective way of increasing population density nor is it result of lower competitive pressure. A lower variety of resources on islands may prevent insular animals from increasing their niche breadths even in the face of few competitors.
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Affiliation(s)
- Maria Novosolov
- Department of Zoology, Tel Aviv University, Tel Aviv, Israel
| | - Gordon H Rodda
- Fort Collins Science Center, US Geological Survey, Fort Collins, CO, USA
| | - Alison M Gainsbury
- Department of Biological Sciences, University of South Florida, St. Petersburg, St. Petersburg, FL, USA
| | - Shai Meiri
- Department of Zoology, Tel Aviv University, Tel Aviv, Israel
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18
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Eisemberg CC, Reynolds SJ, Christian KA, Vogt RC. Diet of Amazon river turtles (Podocnemididae): a review of the effects of body size, phylogeny, season and habitat. ZOOLOGY 2016; 120:92-100. [PMID: 27552858 DOI: 10.1016/j.zool.2016.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/24/2016] [Accepted: 07/12/2016] [Indexed: 11/25/2022]
Abstract
Amazon rivers can be divided into three groups (black, white and clear waters) according to the origin of their sediment, dissolved nutrient content, and vegetation. White water rivers have high sediment loads and primary productivity, with abundant aquatic and terrestrial plant life. In contrast, black water rivers are acid and nutrient-poor, with infertile floodplains that support plant species exceptionally rich in secondary chemical defences against herbivory. In this study, we reviewed available information on the diet of Amazon sideneck river turtles (Family Podocnemididae). Our aim was to test the relationship between water type and diet of podocnemidids. We also took into account the effects of season, size, age, sex and phylogeny. Based on our review, turtles of this family are primarily herbivorous but opportunistic, consuming from 46 to 99% (percent volume) of vegetable matter depending on species, sex, season and location. There was no significant correlation between the maximum carapace size of a species and vegetable matter consumed. When the available information on diet, size and habitat was arranged on the podocnemidid phylogeny, no obvious evolutionary trend was evident. The physicochemical properties of the inhabited water type indirectly influence the average volume of total vegetable matter consumed. Species with no specialised stomach adaptations for herbivory consumed smaller amounts of hard to digest vegetable matter (i.e. leaves, shoots and stems). We propose that turtles with specialized digestive tracts may have an advantage in black water rivers where plant chemical defences are more common. Despite limitations of the published data our review highlights the overall pattern of diet in the Podocnemididae and flags areas where more studies are needed.
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Affiliation(s)
- Carla C Eisemberg
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT 0810, Australia; Instituto Nacional de Pesquisas da Amazônia, Manaus, AM 69067375, Brazil.
| | - Stephen J Reynolds
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT 0810, Australia
| | - Keith A Christian
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT 0810, Australia
| | - Richard C Vogt
- Instituto Nacional de Pesquisas da Amazônia, Manaus, AM 69067375, Brazil
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19
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Šmíd J, Shobrak M, Wilms T, Joger U, Carranza S. Endemic diversification in the mountains: genetic, morphological, and geographical differentiation of the Hemidactylus geckos in southwestern Arabia. ORG DIVERS EVOL 2016. [DOI: 10.1007/s13127-016-0293-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Ecología trófica de la lagartija Xenosaurus mendozai (Squamata: Xenosauridae) en el estado de Querétaro, México. REV MEX BIODIVERS 2016. [DOI: 10.1016/j.rmb.2016.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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21
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The influence of thermal biology on road mortality risk in snakes. J Therm Biol 2016; 56:39-49. [DOI: 10.1016/j.jtherbio.2015.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 12/12/2015] [Accepted: 12/23/2015] [Indexed: 11/20/2022]
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22
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Verrastro L, Ely I. Diet of the lizard Liolaemus occipitalis in the coastal sand dunes of southern Brazil (Squamata-Liolaemidae). BRAZ J BIOL 2016; 75:289-99. [PMID: 26132010 DOI: 10.1590/1519-6984.11013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 12/05/2013] [Indexed: 11/22/2022] Open
Abstract
Knowledge of a species' diet provides important information on adaptation and the relationship between the organism and its environment. The genus Liolaemus occurs in the southern region of South America and is an excellent model to investigate the adaptive processes of vertebrate ecology in ecosystems of this region of the world. Liolaemus occipitalis is an endangered species that inhabits the coastal sand dunes of southern Brazil. This species is the most abundant vertebrate in this environment, and it presents unique adaptation characteristics to the restinga environment. The present study analyzed this lizard's diet to verify similarities or differences between this species and other species of the same genus. Specimens were collected monthly from January 1996 to December 1997. The number of items, frequency of occurrence and volume of each prey taxon were determined. Arthropods were identified to the order level, and plant material was identified as flower, fruit, seed and leaves. Variations in the diet of males and females, adults and juveniles and seasons were also analyzed. The data indicate that Liolaemus occipitalis is a generalist, "sit-and-wait" or ambush predator as well as omnivorous, feeding on both arthropods and plant material. Significant ontogenetic differences were verified. Juveniles are more carnivorous, and the intake of plant material increases with size and age. Seasonal differences in diet composition were also observed. In the spring, arthropod and plant materials were more diversified and, therefore, consumed more often.
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Affiliation(s)
- L Verrastro
- Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - I Ely
- Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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23
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Gamble T, Greenbaum E, Jackman TR, Bauer AM. Into the light: diurnality has evolved multiple times in geckos. Biol J Linn Soc Lond 2015. [DOI: 10.1111/bij.12536] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Tony Gamble
- Department of Genetics, Cell Biology, and Development; University of Minnesota; Minneapolis MN USA
- Bell Museum of Natural History; University of Minnesota; Minneapolis MN USA
| | - Eli Greenbaum
- Department of Biological Sciences; The University of Texas at El Paso; El Paso TX USA
| | - Todd R. Jackman
- Department of Biology; Villanova University; Villanova PA USA
| | - Aaron M. Bauer
- Department of Biology; Villanova University; Villanova PA USA
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24
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Oonincx D, van Leeuwen J, Hendriks W, van der Poel A. The diet of free-roaming Australian Central Bearded Dragons (Pogona vitticeps). Zoo Biol 2015; 34:271-7. [DOI: 10.1002/zoo.21209] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/13/2015] [Accepted: 02/25/2015] [Indexed: 11/11/2022]
Affiliation(s)
- D.G.A.B. Oonincx
- Wageningen Institute of Animal Sciences; Animal Nutrition Group; Wageningen University; Wageningen The Netherlands
- Laboratory of Entomology; Department of Plant Sciences; Wageningen University; Wageningen The Netherlands
| | - J.P. van Leeuwen
- Biometris; Department of Plant Sciences; Wageningen University; Wageningen The Netherlands
| | - W.H. Hendriks
- Wageningen Institute of Animal Sciences; Animal Nutrition Group; Wageningen University; Wageningen The Netherlands
| | - A.F.B. van der Poel
- Wageningen Institute of Animal Sciences; Animal Nutrition Group; Wageningen University; Wageningen The Netherlands
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25
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Spitz J, Ridoux V, Brind'Amour A. Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships. J Anim Ecol 2014; 83:1137-48. [DOI: 10.1111/1365-2656.12218] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 03/11/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Jérôme Spitz
- Littoral Environnement & Sociétés; UMR 7266 Université de La Rochelle/CNRS; 17042 La Rochelle France
- Marine Mammal Research Unit; Fisheries Centre; University of British Columbia; 2202 Main Mall Vancouver BC V6T 1Z4 Canada
| | - Vincent Ridoux
- Observatoire PELAGIS - Système d'Observation pour la Conservation des Mammifères et Oiseaux Marins; UMS 3462; CNRS/Université de La Rochelle; 17071 La Rochelle France
- Centre d'études biologiques de Chizé - La Rochelle; UMR 7372; Université de La Rochelle/CNRS; 79360 Villiers en Bois France
| | - Anik Brind'Amour
- Ifremer; Département Écologie et Modèles pour l'Halieutique; Rue de l'île d'Yeu; BP 21105 44311 Nantes France
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26
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SOUZA SANTOS RV, DE CARVALHO CB, BORGES DE FREITAS E, BARROS GUEIROS F, GOMES FARIA R. Use of resources by two sympatric species of Ameivula (Squamata: Teiidae) in an Atlantic forest-Caatinga ecotone. ACTA BIOLÓGICA COLOMBIANA 2014. [DOI: 10.15446/abc.v20n1.41099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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DIAS EDUARDOJ, ROCHA CARLOSF. Habitat Structural Effect on Squamata Fauna of the Restinga Ecosystem in Northeastern Brazil. AN ACAD BRAS CIENC 2014; 86:359-71. [DOI: 10.1590/0001-3765201420130006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 07/05/2013] [Indexed: 11/21/2022] Open
Abstract
In this work, we surveyed data on richness and composition of squamatan reptiles and habitat structural effect in nine areas of restinga ecosystem in the State of Bahia, northeastern Brazil. The “restinga” ecosystems are coastal sand dune habitats on the coast of Brazil. Our main hypothesis is that the Squamata fauna composition along these restinga areas would be modulated by habitat structural. After 90 days of field sampling we recorded approximately 5% of reptile species known in Brazil. The composition of Squamata assemblages varied mainly based on the presence or absence of lizards of the genera Ameivula and Tropidurus. Our data showed that habitat structure consistently affected the composition of local Squamata fauna, especially lizards.
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Pelegrin N, Chani J, Echevarria A, Bucher E. Habitat degradation may affect niche segregation patterns in lizards. ACTA OECOLOGICA 2013. [DOI: 10.1016/j.actao.2013.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Montaño RR, Cuéllar RL, Fitzgerald LA, Mendoza F, Soria F, Fiorello CV, Deem SL, Noss AJ. Activity and Ranging Behavior of the Red Tegu LizardTupinambis rufescensin the Bolivian Chaco. J HERPETOL 2013. [DOI: 10.2994/sajh-d-13-00016.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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30
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Hertz PE, Arima Y, Harrison A, Huey RB, Losos JB, Glor RE. ASYNCHRONOUS EVOLUTION OF PHYSIOLOGY AND MORPHOLOGY INANOLISLIZARDS. Evolution 2013; 67:2101-13. [DOI: 10.1111/evo.12072] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 01/31/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Paul E. Hertz
- Department of Biological Sciences; Barnard College; 3009 Broadway, New York New York 10027
| | - Yuzo Arima
- Emerging Disease Surveillance and Response Unit; Division of Health Security and Emergencies; Western Pacific Regional Office; World Health Organization; P.O. Box 2932 (United Nations Avenue), 1000 Manila Philippines
| | - Alexis Harrison
- Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology; Harvard University; 26 Oxford Street Cambridge Massachusetts 02138
| | - Raymond B. Huey
- Department of Biology; University of Washington; Box 351800 Seattle Washington 98195
| | - Jonathan B. Losos
- Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology; Harvard University; 26 Oxford Street Cambridge Massachusetts 02138
| | - Richard E. Glor
- Department of Biology; University of Rochester; River Campus Box 270211, Rochester New York 14627
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31
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Brandt R, Navas CA. Body size variation across climatic gradients and sexual size dimorphism in Tropidurinae lizards. J Zool (1987) 2013. [DOI: 10.1111/jzo.12024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- R. Brandt
- Departamento de Fisiologia; Instituto de Biociências; Universidade de São Paulo; São Paulo Brazil
| | - C. A. Navas
- Departamento de Fisiologia; Instituto de Biociências; Universidade de São Paulo; São Paulo Brazil
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32
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Thermal Biology and Temperature Selection in Juvenile Lizards of Co-occurring Native and IntroducedAnolisSpecies. J HERPETOL 2012. [DOI: 10.1670/12-188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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García-De la Peña C, Gadsden H, Palomo-Ramos R, Gatica-Colima AB, Lavín-Murcio PA, Castañeda G. Spatial Segregation of Microhabitats Within a Community of Lizards in Médanos de Samalayuca, Chihuahua, Mexico. SOUTHWEST NAT 2012. [DOI: 10.1894/0038-4909-57.4.430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Reproduction, Body Size, and Diet of Polychrus acutirostris (Squamata: Polychrotidae) in Two Contrasting Environments in Brazil. J HERPETOL 2012. [DOI: 10.1670/10-288] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Spatial, Ontogenetic, and Sexual Effects on the Diet of a Teiid Lizard in Arid South America. J HERPETOL 2011. [DOI: 10.1670/10-154.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Caruccio R, Vieira RC, Verrastro L, Machado DM. Thermal biology, activity, and population parameters of Cnemidophorus vacariensis (Squamata, Teiidae), a lizard endemic to southern Brazil. IHERINGIA. SERIE ZOOLOGIA 2011. [DOI: 10.1590/s0073-47212011000300002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the following aspects of the biology of a population of Cnemidophorus vacariensis Feltrim & Lema, 2000 during the four seasons: thermal biology, relationship with the thermal environment, daily and seasonal activity, population structure and growth rate. Cnemidophorus vacariensis is restricted to rocky outcrops of the "campos de cima da serra" grasslands on the Araucaria Plateau, southern Brazil, and is currently listed as regionally and nationally threatened with extinction. Data were collected from October 2004 through September 2007 in the state of Rio Grande do Sul. Sampling was conducted randomly from 08:00 a.m. to 6:00 p.m. The capture-mark-recapture method was employed. The lizards were captured by hand, and their cloacal temperature, sex, snout-ventral length (SVL), mass, and the temperature of their microhabitat (substrate temperature and air temperature) were recorded. Individuals were then marked by toe-clipping and released at the site of capture. Body temperatures were obtained for 175 individuals, activity data for 96 individuals, and data on population structure and growth for 59 individuals. All data were obtained monthly, at different times of the day. Cnemidophorus vacariensis average body temperature was 23.84ºC, ranging between 9.6 and 38.2ºC. Temperatures ranged between 21 and 29ºC. The correlation between external heat sources, substrate and air were positive and significant and there was a greater correlation between lizard's temperature and the temperature of the substrate (tigmothermic species). The relatively low body temperatures of individuals are associated with the climate of their environment (altitude up to 1,400 m), with large variations in temperature throughout the day and the year, and low temperatures in winter. The average body temperature observed for C. vacariensis was low when compared with that of phylogenetically related species, suggesting that the thermal biology of this species reflects adaptations to the temperate region where it lives. The monthly rates of activity of lizards were related to monthly variations in the ambient temperatures. Our data suggest that the daily and seasonal activity of C. vacariensis result from the interaction between two factors: changes in the environment temperature and the relationship between individuals and their thermal environment. The population structure of C. vacariensis varied throughout the study period, with maximum biomass in January and maximum density in February (recruitment period). The sex ratio diverged from the expected 1:1. The growth analysis showed a negative relationship between the growth rate of individuals and the SVL, revealing that young individuals grow faster than adults, a typical pattern for short-lived species. The population studied showed a seasonal and cyclical variation associated with the reproductive cycle. The life strategy of C. vacariensis seems to include adaptations to the seasonal variations in temperature, typical of its environment.
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Ribeiro LB, Freire EMX. Trophic ecology and foraging behavior of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil. IHERINGIA. SERIE ZOOLOGIA 2011. [DOI: 10.1590/s0073-47212011000200010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study aimed to analyze the seasonal variation in diet composition and foraging behavior of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825), as well as measurement of the foraging intensity (number of moves, time spent stationary, distance traveled and number of attacks on prey items) in a caatinga patch on the state of Rio Grande do Norte, Brazil. Hymenoptera/Formicidae and Isoptera predominated in the diet of both species during the dry season. Opportunistic predation on lepidopteran larvae, coleopteran larvae and adults, and orthopteran nymphs and adults occurred in the wet season; however, hymenopterans/Formicidae were the most important prey items. The number of food items was similar between lizard species in both seasons; however the overlap for number of prey was smaller in the wet season. Preys ingested by T. hispidus during the wet season were also larger than those consumed by T. semitaeniatus. Seasonal comparisons of foraging intensity between the two species differed, mainly in the wet season, when T. hispidus exhibited less movement and fewer attacks on prey, and more time spent stationary if compared to T. semitaeniatus. Although both lizards are sit-and-wait foragers, T. semitaeniatus is more active than T. hispidus. The diet and foraging behavior of T. hispidus and T. semitaeniatus overlap under limiting conditions during the dry season, and are segregative factors that may contribute to the coexistence of these species in the wet season.
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39
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Plessis ID, Mouton P. Habitat Preferences of Three Sympatric Lacertid Lizards in the Arid Tankwa Karoo Basin of South Africa. AFRICAN ZOOLOGY 2011. [DOI: 10.3377/004.046.0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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40
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Dutra GF, Siqueira CC, Vrcibradic D, Kiefer MC, Rocha CFD. Plant Consumption of Insular and Mainland Populations of a Tropical Lizard. HERPETOLOGICA 2011. [DOI: 10.1655/herpetologica-d-09-00009.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Feeding habits, sexual dimorphism and size at maturity of the lizard Cnemidophorus ocellifer (Spix, 1825) (Teiidae) in a reforested restinga habitat in northeastern Brazil. BRAZ J BIOL 2010; 70:409-16. [PMID: 20552149 DOI: 10.1590/s1519-69842010005000006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Accepted: 04/13/2009] [Indexed: 11/21/2022] Open
Abstract
The feeding habits, the sexual dimorphism in size and sexual maturity of the actively foraging lizard Cnemidophorusocellifer were analysed in an area of a reforested Restinga habitat located in the municipality of Mataraca, along the northern-most coast of Paraíba State, Brazil. Seventy-five specimens of C. ocellifer were examined (46 males and 29A females). Of this total, only 23 specimens had prey in their stomachs. The most frequent prey consumed items were orthopterans (50%), coleopterans (23.9%) and arachnids (10.9%); termites and insect larvae were less consumed (both with 2.2%). There were no significant differences observed between the numbers of prey consumed by either males or females. There were significant differences in SVL (snout-vent length) between the sexes, with males attaining larger SVL values. When the influence of SVL was removed from the analyses, sexual dimorphism in the form was still reflected in the head size of these lizards. Sexual maturity in females and males was attained with SVL of 42.2 and 49.0 mm respectively. Although no significant difference was observed between the SVL of the females and the number of eggs produced, there was a clear tendency for larger females to produce more eggs. The low structural complexity of the vegetation and the poor soil quality in the reforested restinga area examined does not furnish favourable habitat for insect and termite larvae, contributing to the marked differences in the diet of the population of C. ocellifer observed in the present study in relation to the diet of their conspecifics in undisturbed areas of restinga, cerrado and caatinga.
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Leyte-Manrique A, RamÍrez-Bautista A. Diet of Two Populations of Sceloporus grammicus (Squamata: Phrynosomatidae) from Hidalgo, Mexico. SOUTHWEST NAT 2010. [DOI: 10.1894/gc-194.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Guerrero AC, da Rocha PLB. Passive Restoration in Biodiversity Hotspots: Consequences for an Atlantic Rainforest Lizard Taxocene. Biotropica 2009. [DOI: 10.1111/j.1744-7429.2009.00584.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Heliotherms in tropical rain forest: the ecology of Kentropyx calcarata (Teiidae) and Mabuya nigropunctata (Scincidae) in the Curuá-Una of Brazil. JOURNAL OF TROPICAL ECOLOGY 2009. [DOI: 10.1017/s0266467400010415] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
ABSTRACTKentropyx calcarata (Teiidae) and Mabuya nigropunctata (Scincidae) occur together in lowland tropical forest of the Amazon near the Rio Curuá-Una of Brazil. During the wet season of 1995 these lizards were common at forest edge along narrow roads that transect forest, in treefalls and along streams where sun reaches the ground. Both species are heliothermic, basking to gain heat. Their association with open patches results from high activity temperature requirements in an environment where sun availability is low. Null temperature distributions from forest and treefalls showed that forest does not offer opportunities for heat gain similar to treefalls. Moreover, the large proportion of time spent basking by both species indicates the importance of these patches for thermoregulation. K. calcarata is slightly larger in body length and heavier at a given body length than M. nigropunctata. Both species are active foragers that seek out prey while moving through the habitat, feeding on orthopterans, roaches and spiders. M. nigropunctata also eat significant numbers of insects that occur on vegetation, such as hemipterans. Prey size is larger in K. calcarata and associated with lizard body size. Prey size does not vary with body size in M. nigropunctata and prey are typically relatively small.Many of the ecological differences between these two lowland forest species appear to be historical: the ecology of K. calcarata is very similar to that of other species of Kentropyx and teiids in general and the ecology of M. nigropunctata is most similar to that of other studied species of south American Mabuya.
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de PINHO WERNECK FERNANDA, COLLI GUARINORINALDI, VITT LAURIEJOSEPH. Determinants of assemblage structure in Neotropical dry forest lizards. AUSTRAL ECOL 2009. [DOI: 10.1111/j.1442-9993.2008.01915.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kolbe JJ, Colbert PL, Smith BE. Niche Relationships and Interspecific Interactions in Antiguan Lizard Communities. COPEIA 2008. [DOI: 10.1643/ce-07-011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Pincheira-Donoso D. Testing the Accuracy of Fecal-Based Analyses in Studies of Trophic Ecology in Lizards. COPEIA 2008. [DOI: 10.1643/ce-06-214] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rocha CFD. Body size, female reproduction and sexual dimorphism in the lizard Ameiva ameiva (Teiidae) in a restinga of southeastern Brazil. ACTA ACUST UNITED AC 2008. [DOI: 10.1590/s0101-81752008000200024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study 57 specimens of the lizard Ameiva ameiva (Linnaeus, 1758) collected in the restinga at Barra de Maricá, in the state of Rio de Janeiro, southeastern Brazil, were analyzed to investigate size relations and reproduction (in females) and sexual dimorphism of this population. We answered the following questions: 1) what is the minimum reproductive body size in females? 2) what is the average clutch size and 3) how is clutch size related to body size? 4) Are body and head sizes sexually dimorphic? Mean clutch size was 6.7 ± 2.1 eggs and was positively correlated with female body size. Sexual dimorphism favoring males was found: adult mean snout-vent length was great in males (124.2 ± 17.8 mm) than females (96.5 ± 23.1 mm SVL), and males were larger with respect to head width and length, and body mass. Thus, despite the marked seasonality at Barra de Maricá, A. ameiva has an extended reproductive period. Also, intrasexual selection may have acted on females to produce larger clutches, and on males, favoring larger males.
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Vitt LJ, Shepard DB, Vieira GHC, Caldwell JP, Colli GR, Mesquita DO. Ecology of Anolis Nitens Brasiliensis in Cerrado Woodlands of Cantão. COPEIA 2008. [DOI: 10.1643/cp-06-251] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dias EJR, Rocha CFD. Niche differences between two sympatric whiptail lizards (Cnemidophorus abaetensis and C. ocellifer, Teiidae) in the restinga habitat of northeastern Brazil. BRAZ J BIOL 2007; 67:41-6. [PMID: 17505748 DOI: 10.1590/s1519-69842007000100006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2004] [Accepted: 02/28/2007] [Indexed: 11/21/2022] Open
Abstract
Differences among sympatric lizard species usually result from differences in the use of three resources: space, time and food or some combination of these three. However, differences in resource utilization among sympatric species may simply reflect their specific ecological needs rather than competitive pressures. In this study, we analyzed the temporal, spatial and food niche of two congeneric teiids (Cnemidophorus abaetensis and C. ocellifer) living sympatrically in the "restinga" habitat of Abaeté in the Salvador Municipality, Bahia State, Brazil to assess the degree of niche differentiation among them. The whiptail species overlapped considerably in an hourly activity (Ojk = 0.93), in microhabitat use (Ojk = 0.97) and in the prey items consumed (Ojk = 0.89). Differences in amount of vegetation in the microhabitats used by both lizard species may have contributed to differences in the activity period and in the distribution of the main prey eaten by these lizards which may, in turn, facilitate their coexistence in Abaeté. Although sympatric C. ocellifer and C. abaetensis in Abaeté differed only slightly in their use of microhabitats, period of activity and diet, the most important niche dimension segregating the two species seemed to be the food niche.
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Affiliation(s)
- E J R Dias
- Departamento de Ecologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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