Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil

Detalhes bibliográficos
Autor(a) principal: Conceição, Anderson Mendonça
Data de Publicação: 2020
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFS
Texto Completo: http://ri.ufs.br/jspui/handle/riufs/16352
Resumo: Kerodon rupestris (rock cavy) is an herbivorous rodent specialized in rocky environments, with endemic occurrence in semiarid areas of Brazil. The objective of this studywastocharacterize the population density, use of space and diet in a 120 ha of rocky outcrops inthearea of caatinga in Sergipe. The density was estimated by distance sampling in four lineartransections (between 292-817m), alternated in the morning and afternoon. The use of thespace was verified at the moment of the detection of the rock cavy in the soil, rockorvegetation and its variation was tested by GLM. The records of rodent activity in the useofspace for air temperature classes and the use of height classes in vegetation were evaluatedbyGLM. The diet was observed ad libitum in the area of transections, the niche amplitudewas calculated and the influence of precipitation on the composition of the diet was assessedby simple logistic regression. Were carried out 612 observations of K. rupestris in 23,172m, and the best fitted model was Half-normal/Cosine for an estimate of 12.45 individuals/ha. There was a difference in the use of strata (p=0.021), with 71% of the records in the rock. Theactivity of this rodent was recorded between temperatures of 23 and 45 °C, withgreateractivity between 31-34 °C, and been influenced by this variable (p=2.743 -8). The rockcavydiffered in relation to the use of height classes in vegetation (p=0.021), with greater useof theground (55%) and records of use of 10 plant species. For the diet, this rodent consumedsixcategories (leaf, fallen leaf, flower, fallen flower, bark and stem), with leaf-basedfeeding(56.5%), reflecting a low niche range (Ba=0.321). For the consumption of categoriesbyspecies, this rodent was also a specialist (Ba=0.209), with greater use of leaves of Bauhiniacheilantha (25.26%) and fallen flowers of Cenostigma pyramidale (22%). The lowrainfall inthe region influenced the consumption of leafs (p=1.85 -5) and of the species B. cheilantha(p=0.044), while the high precipitation influenced the consumption of fallen flowers (p=2.82-5)and C. pyramidale (p=1.34 -5). The high population density of K. rupestris in the localityconfirms the importance of protected areas for the conservation of this species. The studiedpopulation presents similar characteristics of the rodent species that occur in islands, beingthat the rock cavy to cluster in the mesic refuges formed by the rocky outcrops. The rockcavyconsumes the vegetation associated with these environments, with a diet composed mainlyoffreshly fallen leaves and flowers, which are influenced by precipitation. The greaterconsumption of these food items can be favored by the level of water found in their tissues, which is important for survival in a semiarid environment with irregular rainfall, as well ascarbohydrates found in the nectar of flowers.
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spelling Conceição, Anderson MendonçaBocchiglieri, Adriana2022-10-05T15:08:02Z2022-10-05T15:08:02Z2020-02-28CONCEIÇÃO, Anderson Mendonça. Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil. 2020. 63 f. Dissertação (Mestrado em Ecologia e Conservação) – Universidade Federal de Sergipe, São Cristóvão, 2020.http://ri.ufs.br/jspui/handle/riufs/16352Kerodon rupestris (rock cavy) is an herbivorous rodent specialized in rocky environments, with endemic occurrence in semiarid areas of Brazil. The objective of this studywastocharacterize the population density, use of space and diet in a 120 ha of rocky outcrops inthearea of caatinga in Sergipe. The density was estimated by distance sampling in four lineartransections (between 292-817m), alternated in the morning and afternoon. The use of thespace was verified at the moment of the detection of the rock cavy in the soil, rockorvegetation and its variation was tested by GLM. The records of rodent activity in the useofspace for air temperature classes and the use of height classes in vegetation were evaluatedbyGLM. The diet was observed ad libitum in the area of transections, the niche amplitudewas calculated and the influence of precipitation on the composition of the diet was assessedby simple logistic regression. Were carried out 612 observations of K. rupestris in 23,172m, and the best fitted model was Half-normal/Cosine for an estimate of 12.45 individuals/ha. There was a difference in the use of strata (p=0.021), with 71% of the records in the rock. Theactivity of this rodent was recorded between temperatures of 23 and 45 °C, withgreateractivity between 31-34 °C, and been influenced by this variable (p=2.743 -8). The rockcavydiffered in relation to the use of height classes in vegetation (p=0.021), with greater useof theground (55%) and records of use of 10 plant species. For the diet, this rodent consumedsixcategories (leaf, fallen leaf, flower, fallen flower, bark and stem), with leaf-basedfeeding(56.5%), reflecting a low niche range (Ba=0.321). For the consumption of categoriesbyspecies, this rodent was also a specialist (Ba=0.209), with greater use of leaves of Bauhiniacheilantha (25.26%) and fallen flowers of Cenostigma pyramidale (22%). The lowrainfall inthe region influenced the consumption of leafs (p=1.85 -5) and of the species B. cheilantha(p=0.044), while the high precipitation influenced the consumption of fallen flowers (p=2.82-5)and C. pyramidale (p=1.34 -5). The high population density of K. rupestris in the localityconfirms the importance of protected areas for the conservation of this species. The studiedpopulation presents similar characteristics of the rodent species that occur in islands, beingthat the rock cavy to cluster in the mesic refuges formed by the rocky outcrops. The rockcavyconsumes the vegetation associated with these environments, with a diet composed mainlyoffreshly fallen leaves and flowers, which are influenced by precipitation. The greaterconsumption of these food items can be favored by the level of water found in their tissues, which is important for survival in a semiarid environment with irregular rainfall, as well ascarbohydrates found in the nectar of flowers.Kerodon rupestris (mocó) é um roedor herbívoro especialista em ambientes rochosos, com ocorrência endêmica em áreas semiáridas do Brasil. Este estudo objetivou caracterizar a densidade populacional, uso do espaço e dieta do mocó em 120 ha de afloramentos rochosos em uma área de caatinga de Sergipe. Estimou-se a densidade por amostragem de distância em quatro transecções lineares (entre 292-817m) percorridas alternadamente pela manhã e tarde. O uso do espaço foi verificado no momento da detecção dos mocós no solo, rocha ou vegetação e sua variação foi testada por GLM. Os registros de atividade no uso do espaço para as classes de temperatura do ar e a utilização das classes de altura na vegetação foram avaliadas por GLM. A dieta foi observada ad libitum na área das transecções, sendo calculada a amplitude do nicho e a influência da precipitação na composição da dieta avaliada por regressão logística simples. Foram realizadas 612 observações de K. rupestris em 23.172m, sendo o melhor modelo o Half-normal/cosseno para uma estimativa de 12,45 indivíduos/ha. Houve diferença no uso dos estratos (p=0,021), com 71% dos registros na rocha. A atividade deste roedor foi registrada entre as temperaturas de 23 e 45°C, com maior atividade entre 31-34°C, sendo influenciada por esta variável (p=2,743 -8). Os mocós diferiram em relação ao uso das classes de altura na vegetação (p=0,021), com maior utilização do solo (55%) e registros de uso de 10 espécies vegetais. Este roedor consumiu seis categorias (folha, folha caída, flor, flor caída, casca e caule), com alimentação baseada em folha (56,5%), refletindo uma baixa amplitude de nicho (Ba=0,321). Para o consumo das categorias por espécies, este roedor também foi especialista (Ba=0,209), com maior uso de folhas de Bauhinia cheilantha(25,26%) e flores caídas de Cenostigma pyramidale (22%). A baixa precipitação na região influenciou o consumo de folhas (p=1,85-5) e da espécie B. cheilantha (p=0,044), enquanto a alta precipitação influenciou o consumo de flor caída (p=2,82 -5) e C. pyramidale (p=1,34-5). A alta densidade populacional de K. rupestris na localidade confirma a importância de áreas protegidas para a conservação desta espécie. A população estudada apresenta características similares das espécies de roedores que ocorrem em ilhas, sendo que o mocó se agrega nos refúgios mésicos formados pelos afloramentos rochosos. O mocó consome a vegetação associada a esses ambientes, com dieta composta principalmente por folhas e flores recém caídas, sendo esta influenciada pela precipitação. O maior consumo destes itens alimentares pode ser favorecido pelo nível de água encontrado em seus tecidos, importante para sobrevivência em um ambiente semiárido com chuvas irregulares, assim como os carboidratos encontrados no néctar das flores.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESSão CristóvãoporRoedoresSergipeAnimais da caatingaDietaDensidade demográficaAlimentaçãoCaatingaDensidadeEstratificação verticalPrecipitaçãoDensityVertical stratificationFoodPrecipitationCIENCIAS BIOLOGICAS::ECOLOGIADensidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPós-Graduação em Ecologia e ConservaçãoUniversidade Federal de Sergipereponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81475https://ri.ufs.br/jspui/bitstream/riufs/16352/1/license.txt098cbbf65c2c15e1fb2e49c5d306a44cMD51ORIGINALANDERSON_MENDONCA_CONCEICAO.pdfANDERSON_MENDONCA_CONCEICAO.pdfapplication/pdf7452461https://ri.ufs.br/jspui/bitstream/riufs/16352/2/ANDERSON_MENDONCA_CONCEICAO.pdffdc9d240a39b65d4df12ab256081167dMD52TEXTANDERSON_MENDONCA_CONCEICAO.pdf.txtANDERSON_MENDONCA_CONCEICAO.pdf.txtExtracted texttext/plain127559https://ri.ufs.br/jspui/bitstream/riufs/16352/3/ANDERSON_MENDONCA_CONCEICAO.pdf.txt74bcb610e3d42f42b7ff6d98c1d9b6f6MD53THUMBNAILANDERSON_MENDONCA_CONCEICAO.pdf.jpgANDERSON_MENDONCA_CONCEICAO.pdf.jpgGenerated Thumbnailimage/jpeg1325https://ri.ufs.br/jspui/bitstream/riufs/16352/4/ANDERSON_MENDONCA_CONCEICAO.pdf.jpga9a1b0821b865b6d3dfe07f6d93538acMD54riufs/163522022-10-05 12:08:02.718oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2022-10-05T15:08:02Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.pt_BR.fl_str_mv Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
title Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
spellingShingle Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
Conceição, Anderson Mendonça
Roedores
Sergipe
Animais da caatinga
Dieta
Densidade demográfica
Alimentação
Caatinga
Densidade
Estratificação vertical
Precipitação
Density
Vertical stratification
Food
Precipitation
CIENCIAS BIOLOGICAS::ECOLOGIA
title_short Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
title_full Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
title_fullStr Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
title_full_unstemmed Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
title_sort Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil
author Conceição, Anderson Mendonça
author_facet Conceição, Anderson Mendonça
author_role author
dc.contributor.author.fl_str_mv Conceição, Anderson Mendonça
dc.contributor.advisor1.fl_str_mv Bocchiglieri, Adriana
contributor_str_mv Bocchiglieri, Adriana
dc.subject.por.fl_str_mv Roedores
Sergipe
Animais da caatinga
Dieta
Densidade demográfica
Alimentação
Caatinga
Densidade
Estratificação vertical
Precipitação
topic Roedores
Sergipe
Animais da caatinga
Dieta
Densidade demográfica
Alimentação
Caatinga
Densidade
Estratificação vertical
Precipitação
Density
Vertical stratification
Food
Precipitation
CIENCIAS BIOLOGICAS::ECOLOGIA
dc.subject.eng.fl_str_mv Density
Vertical stratification
Food
Precipitation
dc.subject.cnpq.fl_str_mv CIENCIAS BIOLOGICAS::ECOLOGIA
description Kerodon rupestris (rock cavy) is an herbivorous rodent specialized in rocky environments, with endemic occurrence in semiarid areas of Brazil. The objective of this studywastocharacterize the population density, use of space and diet in a 120 ha of rocky outcrops inthearea of caatinga in Sergipe. The density was estimated by distance sampling in four lineartransections (between 292-817m), alternated in the morning and afternoon. The use of thespace was verified at the moment of the detection of the rock cavy in the soil, rockorvegetation and its variation was tested by GLM. The records of rodent activity in the useofspace for air temperature classes and the use of height classes in vegetation were evaluatedbyGLM. The diet was observed ad libitum in the area of transections, the niche amplitudewas calculated and the influence of precipitation on the composition of the diet was assessedby simple logistic regression. Were carried out 612 observations of K. rupestris in 23,172m, and the best fitted model was Half-normal/Cosine for an estimate of 12.45 individuals/ha. There was a difference in the use of strata (p=0.021), with 71% of the records in the rock. Theactivity of this rodent was recorded between temperatures of 23 and 45 °C, withgreateractivity between 31-34 °C, and been influenced by this variable (p=2.743 -8). The rockcavydiffered in relation to the use of height classes in vegetation (p=0.021), with greater useof theground (55%) and records of use of 10 plant species. For the diet, this rodent consumedsixcategories (leaf, fallen leaf, flower, fallen flower, bark and stem), with leaf-basedfeeding(56.5%), reflecting a low niche range (Ba=0.321). For the consumption of categoriesbyspecies, this rodent was also a specialist (Ba=0.209), with greater use of leaves of Bauhiniacheilantha (25.26%) and fallen flowers of Cenostigma pyramidale (22%). The lowrainfall inthe region influenced the consumption of leafs (p=1.85 -5) and of the species B. cheilantha(p=0.044), while the high precipitation influenced the consumption of fallen flowers (p=2.82-5)and C. pyramidale (p=1.34 -5). The high population density of K. rupestris in the localityconfirms the importance of protected areas for the conservation of this species. The studiedpopulation presents similar characteristics of the rodent species that occur in islands, beingthat the rock cavy to cluster in the mesic refuges formed by the rocky outcrops. The rockcavyconsumes the vegetation associated with these environments, with a diet composed mainlyoffreshly fallen leaves and flowers, which are influenced by precipitation. The greaterconsumption of these food items can be favored by the level of water found in their tissues, which is important for survival in a semiarid environment with irregular rainfall, as well ascarbohydrates found in the nectar of flowers.
publishDate 2020
dc.date.issued.fl_str_mv 2020-02-28
dc.date.accessioned.fl_str_mv 2022-10-05T15:08:02Z
dc.date.available.fl_str_mv 2022-10-05T15:08:02Z
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dc.identifier.citation.fl_str_mv CONCEIÇÃO, Anderson Mendonça. Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil. 2020. 63 f. Dissertação (Mestrado em Ecologia e Conservação) – Universidade Federal de Sergipe, São Cristóvão, 2020.
dc.identifier.uri.fl_str_mv http://ri.ufs.br/jspui/handle/riufs/16352
identifier_str_mv CONCEIÇÃO, Anderson Mendonça. Densidade populacional, uso do espaço e dieta do roedor Kerodon rupestris (Mammalia: Caviidae) em uma área do alto sertão sergipano, Nordeste do Brasil. 2020. 63 f. Dissertação (Mestrado em Ecologia e Conservação) – Universidade Federal de Sergipe, São Cristóvão, 2020.
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