Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores

Detalhes bibliográficos
Autor(a) principal: Leal, Cledinaldo Borges
Data de Publicação: 2019
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/45951
Resumo: Fitotelmata are temporary lentic aquatic environments formed by the accumulation of rain in structures of terrestrial plants, constituting peculiar microcosms. Such as all aquatic environments, its trophic base is usually microalgae (phytoplankton and periphyton), controlled by bottom-up factors, especially light and nutrients, and top-down, predators such as zooplankton, fish and amphibian larvae. In the National Forest (NF) of Palmares (Altos, Piauí, Brazil), such environments are the only available water source, crucial for the reproduction of the amphibian Corythomantis greeningi (Anura: Hylidae). The objective of this study was to understand the ecological structuring factors of phytotelmata in tree trunks, as well as the regulating factors of the microalgae and tadpoles of this amphibian, listing possible determinant factors in the choice of phytohelma for spawning and to verify possible relationships between nutrient concentrations and phytotelma species and its phylogenetic classification. Thus, we made eight collections in ten phytotelmata, in two subsequent years (March to April / 2016 and March to April / 2017), with measurement of climatological and hydrological variables, phytoplankton and periphytic biomass and biovolume of tadpoles. The results showed that the main environmental factor for phytotelmata is rainfall, and there is also influence of the plant species, and that turbidity is the factor that most explains the size variations of tadpoles, as well as the choice of spawning locations. The largest amount of phytoplankton occurred in the Dictyoloma vandellianum (pau-de-urubu) phytotelma and the periphyton in the Lecythis pisonis (sapucaia) phytotelma. Bottom-up factors, especially those related to light, contributed 31% to phytoplankton biomass variation, but no evident influence of top-down factors. The periphyton biomass showed no contribution of either bottom-up nor top-down factors. In terms of nutrients, the sapucaia differed from the other species and the jacaranda (Machaerium villosum) was different from the angico branco (Anadenanthera colubrina), a consistent result with the phylogenetic classification of such plants. We conclude that, although phytotelmata are unpredictable environments due to the lack of stability, it is possible to make ecological inferences about the processes which occur in them.
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spelling Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvoresEcology of Corythomantis greeningi tadpoles (Anura: Hylidae) and microalgae in phytotelmata of tree trunksLarvas de anurosAmbientes temporáriosPerifítonFitoplânctonEcologia tróficaFatores limitantesAPG IIIFitotelmata are temporary lentic aquatic environments formed by the accumulation of rain in structures of terrestrial plants, constituting peculiar microcosms. Such as all aquatic environments, its trophic base is usually microalgae (phytoplankton and periphyton), controlled by bottom-up factors, especially light and nutrients, and top-down, predators such as zooplankton, fish and amphibian larvae. In the National Forest (NF) of Palmares (Altos, Piauí, Brazil), such environments are the only available water source, crucial for the reproduction of the amphibian Corythomantis greeningi (Anura: Hylidae). The objective of this study was to understand the ecological structuring factors of phytotelmata in tree trunks, as well as the regulating factors of the microalgae and tadpoles of this amphibian, listing possible determinant factors in the choice of phytohelma for spawning and to verify possible relationships between nutrient concentrations and phytotelma species and its phylogenetic classification. Thus, we made eight collections in ten phytotelmata, in two subsequent years (March to April / 2016 and March to April / 2017), with measurement of climatological and hydrological variables, phytoplankton and periphytic biomass and biovolume of tadpoles. The results showed that the main environmental factor for phytotelmata is rainfall, and there is also influence of the plant species, and that turbidity is the factor that most explains the size variations of tadpoles, as well as the choice of spawning locations. The largest amount of phytoplankton occurred in the Dictyoloma vandellianum (pau-de-urubu) phytotelma and the periphyton in the Lecythis pisonis (sapucaia) phytotelma. Bottom-up factors, especially those related to light, contributed 31% to phytoplankton biomass variation, but no evident influence of top-down factors. The periphyton biomass showed no contribution of either bottom-up nor top-down factors. In terms of nutrients, the sapucaia differed from the other species and the jacaranda (Machaerium villosum) was different from the angico branco (Anadenanthera colubrina), a consistent result with the phylogenetic classification of such plants. We conclude that, although phytotelmata are unpredictable environments due to the lack of stability, it is possible to make ecological inferences about the processes which occur in them.Fitotelmos são ambientes aquáticos lênticos temporários que se formam pelo acúmulo de chuva em estruturas de plantas terrestres, constituindo-se em microcosmos peculiares. Como todo ambiente aquático, sua base trófica costuma ser as microalgas (fitoplâncton e perifíton), controladas por fatores bottom-up, sobretudo a iluminação e os nutrientes, e top-down, predadores como zooplâncton, peixes e larvas de anfíbios. Na Floresta Nacional (FLONA) de Palmares (Altos, Piauí, Brasil), tais ambientes são a única fonte de água disponível, crucial na reprodução do anfíbio Corythomantis greeningi (Anura: Hylidae). Visou-se compreender os fatores de estruturação ecológica de fitotelmos em troncos de árvores, bem como os fatores reguladores das microalgas e dos girinos desse anfíbio, elencar possíveis fatores determinantes na escolha do fitotelmo utilizado para desova e verificar possíveis relações entre as concentrações de nutrientes e a espécie de fitotelmo e sua classificação filogenética. Para isso, foram realizadas oito coletas em dez fitotelmos, por dois anos subsequentes (março a abril/2016 e março a abril/2017), com medição de variáveis climatológicas e hidrológicas, biomassa fitoplanctônica e perifítica e biovolume dos girinos. Os resultados mostraram que o principal fator ambiental estruturador dos fitotelmos é a pluviosidade, havendo também influência da espécie da planta, e que a turbidez é o fator que mais explica as variações de tamanho dos girinos, bem como a escolha do local para desova. A maior quantidade de fitoplâncton ocorreu no fitotelmo de Dictyoloma vandellianum (pau-de-urubu) e do perifíton no fitotelmo de Lecythis pisonis (sapucaia). Os fatores bottom-up, sobretudo os relacionados à iluminação, contribuíram em 31% para a variação da biomassa do fitoplâncton, porém sem influência evidente dos fatores top-down. A biomassa do perifíton não evidenciou contribuição nem dos fatores bottom-up, nem dos fatores top-down. Em termos de nutrientes, a sapucaia diferiu das demais espécies e o jacarandá (Machaerium villosum) foi diferente do angico branco (Anadenanthera colubrina), estando este resultado coerente com a classificação filogenética de tais plantas. Conclui-se que, embora sejam ambientes imprevisíveis devido à falta de estabilidade, é possível se fazer inferências ecológicas sobre os processos que ocorrem nos fitotelmos.Cascon, PauloLeal, Cledinaldo Borges2019-09-19T22:19:01Z2019-09-19T22:19:01Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfLEAL, Cledinaldo Borges. Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores. 2019. 98 f. Tese (Doutorado em Ecologia e Recursos Naturais) - Universidade Federal do Ceará, Fortaleza, 2019.http://www.repositorio.ufc.br/handle/riufc/45951porreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccess2019-09-19T22:19:01Zoai:repositorio.ufc.br:riufc/45951Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:17:00.715952Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
Ecology of Corythomantis greeningi tadpoles (Anura: Hylidae) and microalgae in phytotelmata of tree trunks
title Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
spellingShingle Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
Leal, Cledinaldo Borges
Larvas de anuros
Ambientes temporários
Perifíton
Fitoplâncton
Ecologia trófica
Fatores limitantes
APG III
title_short Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
title_full Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
title_fullStr Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
title_full_unstemmed Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
title_sort Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores
author Leal, Cledinaldo Borges
author_facet Leal, Cledinaldo Borges
author_role author
dc.contributor.none.fl_str_mv Cascon, Paulo
dc.contributor.author.fl_str_mv Leal, Cledinaldo Borges
dc.subject.por.fl_str_mv Larvas de anuros
Ambientes temporários
Perifíton
Fitoplâncton
Ecologia trófica
Fatores limitantes
APG III
topic Larvas de anuros
Ambientes temporários
Perifíton
Fitoplâncton
Ecologia trófica
Fatores limitantes
APG III
description Fitotelmata are temporary lentic aquatic environments formed by the accumulation of rain in structures of terrestrial plants, constituting peculiar microcosms. Such as all aquatic environments, its trophic base is usually microalgae (phytoplankton and periphyton), controlled by bottom-up factors, especially light and nutrients, and top-down, predators such as zooplankton, fish and amphibian larvae. In the National Forest (NF) of Palmares (Altos, Piauí, Brazil), such environments are the only available water source, crucial for the reproduction of the amphibian Corythomantis greeningi (Anura: Hylidae). The objective of this study was to understand the ecological structuring factors of phytotelmata in tree trunks, as well as the regulating factors of the microalgae and tadpoles of this amphibian, listing possible determinant factors in the choice of phytohelma for spawning and to verify possible relationships between nutrient concentrations and phytotelma species and its phylogenetic classification. Thus, we made eight collections in ten phytotelmata, in two subsequent years (March to April / 2016 and March to April / 2017), with measurement of climatological and hydrological variables, phytoplankton and periphytic biomass and biovolume of tadpoles. The results showed that the main environmental factor for phytotelmata is rainfall, and there is also influence of the plant species, and that turbidity is the factor that most explains the size variations of tadpoles, as well as the choice of spawning locations. The largest amount of phytoplankton occurred in the Dictyoloma vandellianum (pau-de-urubu) phytotelma and the periphyton in the Lecythis pisonis (sapucaia) phytotelma. Bottom-up factors, especially those related to light, contributed 31% to phytoplankton biomass variation, but no evident influence of top-down factors. The periphyton biomass showed no contribution of either bottom-up nor top-down factors. In terms of nutrients, the sapucaia differed from the other species and the jacaranda (Machaerium villosum) was different from the angico branco (Anadenanthera colubrina), a consistent result with the phylogenetic classification of such plants. We conclude that, although phytotelmata are unpredictable environments due to the lack of stability, it is possible to make ecological inferences about the processes which occur in them.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-19T22:19:01Z
2019-09-19T22:19:01Z
2019
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv LEAL, Cledinaldo Borges. Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores. 2019. 98 f. Tese (Doutorado em Ecologia e Recursos Naturais) - Universidade Federal do Ceará, Fortaleza, 2019.
http://www.repositorio.ufc.br/handle/riufc/45951
identifier_str_mv LEAL, Cledinaldo Borges. Ecologia de girinos de Corythomantis greeningi (Anura: Hylidae) e microalgas em fitotelmos de troncos de árvores. 2019. 98 f. Tese (Doutorado em Ecologia e Recursos Naturais) - Universidade Federal do Ceará, Fortaleza, 2019.
url http://www.repositorio.ufc.br/handle/riufc/45951
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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