| Registro completo |
| Provedor de dados: |
Ciência e Agrotecnologia
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| País: |
Brazil
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| Título: |
Population dynamics and spatial distribution of Abaris basistriata Chaudoir, 1873 (Coleoptera: Carabidae)
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| Autores: |
Martins,Ivan Carlos Fernandes
Cividanes,Francisco Jorge
Barbosa,José Carlos
Lima Junior,Joaquim Alves de
Campos,Lourival Dias
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| Data: |
2016-02-01
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| Ano: |
2016
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| Palavras-chave: |
Interpolation map
Population fluctuation
Refuge areas
Soybean.
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| Resumo: |
ABSTRACT Abaris basistriata, a beetle species dominant in agroecosystems and natural habitats, may benefit from the establishment of nearby refuge areas or crop field centers. To confirm this hypothesis, we analyzed the spatial distribution of the species and verified the population dynamics of this predator in a soybean/corn rotation crop and a central refuge area. The 1-ha experimental area was divided in half by a range of herbaceous plants (2 m in width and 80 m in length). Beetle samples were collected using pitfall traps every fortnight during the in-season and every month during the off-season (a total of 27 sampling occurrences). Population fluctuation was analyzed by correlating the total number of specimens with plant phenology. We used multiple regression analysis with variable (stepwise) selection to examine the influence of meteorological factors on species occurrence. To determine the spatial distribution, data were analyzed using dispersion indices and probabilistic models based on the Coleoptera frequency distribution. Distribution visualization was assessed using a linear interpolation map. A total of 143 A. basistriata specimens were collected, with 83 from the soybean/corn area and 60 from the refuge area. Periods of large population size occurred during a season with high rainfall and high maximum and minimum temperatures. On the basis of the spatial distribution analysis of A. basistriata, it is likely that the beetles occur in an aggregate form, preferably in the refuge area.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000100057
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| Editor: |
Editora da Universidade Federal de Lavras
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| Relação: |
10.1590/S1413-70542016000100005
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| Formato: |
text/html
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| Fonte: |
Ciência e Agrotecnologia v.40 n.1 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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