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Previous issue date: 2016-02-19 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A Caatinga ? uma forma??o florestal escler?fila, dec?dua e espinhosa. Situase
em uma regi?o semi-?rida, com cerca de 730 000 km2, exclusiva do territ?rio
brasileiro. Este ambiente apresenta grande varia??o de tipos de vegeta??o que foram
atribu?das ? varia??es em larga escala no clima, padr?es de geomorfologia e diferen?as
de pequena escala em relevo e solos. A precipita??o escassa e flutuante das regi?es
?ridas e semi-?ridas, exercem um forte controle sobre: hist?rias de vida, caracter?sticas
fisiol?gicas e composi??o de esp?cies de sua biota. Pelo menos 77 esp?cies de
morcegos das 178 esp?cies presentes no Brasil s?o encontrados na Caatinga, dos quais
13 s?o frug?voros e cinco nectarivorous incluindo o end?mica Xeronycteris vieirai. Os
morcegos s?o conhecidos por desempenharem pap?is importantes no controle de pragas,
poliniza??o e dispers?o de sementes. No entanto, pouca informa??o foi gerada sobre o
papel ecol?gico dessas esp?cies em um ambiente como Caatinga. Em geral, esse habitat
? o ecossistema brasileiro mais negligenciado em termos de pesquisa e conserva??o da
sua biodiversidade. Especificamente no caso dos morcegos, o Rio Grande do Norte
possui uma das maiores lacunas de conhecimento no Brasil. Os dados aqui
apresentados, representam uma das primeiras pesquisas formais com morcegos na
Caatinga do Rio Grande do Norte. Foram geradas informa??es sobre a estrutura
aninhada e assim?trica da rede mutual?stica entre morcegos nectar?voros e esp?cieschave
de plantas para a manuten??o da comunidade de morcegos nectar?voros nesta
regi?o. Al?m disso, a primeira evid?ncia de folivoria de pelo menos 16 esp?cies de
plantas pelo morcego frug?voro Artibeus planirostris foi documentada. Isto representa o
primeiro registro para um ambiente semi-?rido e o primeiro registro para a esp?cie.
Finalmente, o primeiro ?insight? para aspectos biol?gicos do morcego end?mico X.
vieirai, incluindo dieta, poleiros e dados de reprodu??o, assim como a extens?o de sua
distribui??o a n?vel nacional. / Caatinga is a deciduous thorny woodland and sclerophyllous vegetation,
encountered in a semi-arid region of around 730 000 km2 entirely within the Brazilian
territory . This environment presents high variation of vegetation types that have been
attributed to large-scale variations in the climate, geomorphology patterns, and smallscale
differences in topography and soils. The sparse and fluctuation precipitation of
arid and semiarid regions is believed to exert strong control over life histories,
physiological characteristics, and species composition of their biotas.
At least 77 bat species of the 178 species present in Brazil are found in Caatinga, of
which 13 are frugivorous and five nectarivorous including the endemic Xeronycteris
vieirai. Bats are known play important roles in pest control, pollination and seed
dispersal, nonetheless little information has been generated regarding the ecological
role these species play in an environment like Caatinga. In general, this habitat is the
most neglected Brazilian ecosystem in terms of investigation and conservation of its
biodiversity. Specifically in the case of bats, Rio Grande do Norte is one of the
biggest knowledge gaps in Brazil. The data presented here represent one of the first
formal investigations with bats in the Caatinga in Rio Grande do Norte. Information
on the nested and asymmetric structure of the mutualistc network between
nectarivorous bats and plants was generated, with data on key plant species for the
maintenance of the community of nectar-feeding bats in this region. Also, the first
evidence of folivory of at least 16 plant species by the fruit-eating bat Artibeus
planirostris was documented, representing the first record for a semi arid enviroment
and the first record for the bat species. Finally, the first insight to biological aspects of
the endemic X. vieirai including diet, roosts and reproduction data were registered as
well the extention of its range distribution at a national level.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/21512 |
| Date | 19 February 2016 |
| Creators | Schmidt, Eugenia Cordero |
| Contributors | 07873068862, Fonseca, Carlos Roberto Sorensen Dutra da, 75617633791, Machado, Isabel Cristina Sobreira, 18717519420, Venticinque, Eduardo Martins |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM ECOLOGIA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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