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Previous issue date: 2015-06-19 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / A distribui??o espa?o-temporal das popula??es reflete o ajuste de suas caracter?sticas
biol?gicas ?s condi??es ambientais e intera??es bi?ticas, conforme elementos precursores
adaptativos e filogen?ticos. A heterogeneidade de habitat e o clima estacional tendem a
causar padr?es de atividade dos organismos e de diversidade de esp?cies. Por?m, esses
padr?es sazonais e espaciais em comunidades de borboletas em ambientes secos ainda n?o
s?o claros. Estudamos uma comunidade de borboletas frug?voras na ESEC Serid?, no
nordeste do Brasil, com o intuito de caracterizar a guilda no semi?rido e verificar a
contribui??o relativa de vari?veis clim?ticas e vegetacionais sobre a sua composi??o,
diversidade e fenofaun?stica. As borboletas foram amostradas mensalmente, durante um
ano, e a distribui??o das esp?cies foi associada ?s caracter?sticas estruturais de tr?s
fitofisionomias (ex. riqueza e abund?ncia de esp?cies arb?reo-arbustivas, cobertura de
dossel, cobertura de herb?ceas, serapilheira) e a dados climatol?gicos (temperatura,
pluviosidade e umidade). Foram capturados 9580 indiv?duos de 16 esp?cies de borboletas,
pertencentes a quatro subfam?lias (Biblidinae, Charaxinae, Nymphalinae e Satyrinae). A
riqueza, abund?ncia e diversidade variaram em diferentes escalas, principalmente no tempo,
sendo maiores na esta??o chuvosa, enquanto a ?-diversidade e turnover foram maiores na
seca. A distribui??o das esp?cies seguiu principalmente as mudan?as de umidade,
pluviosidade e fenologia vegetacional, n?o havendo limites definidos entre habitats. O
per?odo de voo foi compartilhado dentro das subfam?lias, as quais devem ter resposta
distinta aos est?mulos ambientais, como tamb?m responder ? fenologia de plantas
hospedeiras e ter estrat?gias de reprodu??o distintas. Havendo inclusive, ind?cios de
adapta??es fisiol?gicas e comportamentais como reprodu??o sazonal e estiva??o. Portanto,
houve controle ambiental sobre a distribui??o e diversidade de esp?cies, com o papel chave
da associa??o do clima e estrutura da vegeta??o na diferencia??o da comunidade em
esta??es do ano, e da disponibilidade e qualidade de recursos sobre a varia??o de
abund?ncia das esp?cies, em pequenas escalas. Tais resultados podem dar suporte ao
biomonitoramento e conserva??o de ?reas preservadas, sobretudo em ambientes sob
press?o antr?pica e de condi??es ambientais extremas como o semi?rido. / The spatial and temporal distribution of the population reflects the adjustment of their
biological characteristics to environmental conditions and biotic interactions as adaptive and
phylogenetic precursors elements. The habitat?s heterogeneity and alternating seasons tend
to cause patterns of activity of organisms and species diversity. However, these seasonal and
spatial patterns in butterfly communities in dry environments are not yet clear. We studied a
community of frugivorous butterflies in ESEC Serid?, in northeastern Brazil, aiming to
characterize the guild in semiarid and check the relative contribution of climate and
vegetation variables on its composition, diversity and phenofaunistic. The butterflies were
sampled monthly during one year, and the distribution of species was associated with
structural characteristics of three vegetation types (eg. richness and abundance of tree and
shrub species, canopy cover, herbaceous cover, litter) and climatological data (temperature,
rainfall and humidity). We captured 9580 individuals of 16 species of butterflies belonging to
four subfamilies (Biblidinae, Charaxinae, Nymphalinae and Satyrinae). The richness,
abundance and diversity varied in different scales, especially in time, being higher in the
rainy season, while the ?-diversity and turnover was higher in the dry. The distribution of
species mainly followed the changes in humidity, rainfall and vegetation phenology, with no
defined boundaries between habitats. The flight period was shared within subfamilies, which
should have distinct response to environmental stimuli, as well as respond to the phenology
of host plants and have different reproductive strategies. There is even evidence of
physiological and behavioral adaptations as seasonal reproduction and aestivation. So there
was environmental control over the distribution and diversity of species, with the key role
climate Association and vegetation structure in the community of differentiation in the
seasons, and the availability and quality of resources on the variation of species abundance
in small scales. These results may support the biomonitoring and conservation preserved
areas, particularly in environments under human pressure and extreme environmental
conditions such as semi-arid.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20626 |
| Date | 19 June 2015 |
| Creators | Santos, Larissa Nascimento dos |
| Contributors | 83953361791, http://lattes.cnpq.br/6310990045769627, Souza, Alexandre Fadigas de, 02845395701, http://lattes.cnpq.br/7844758818522706, Marini Filho, Onildo Jo?o, 39792340106, http://lattes.cnpq.br/5094260240232256, Cardoso, M?rcio Zikan |
| Publisher | Universidade Federal do Rio Grande do Norte, 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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