Data/hora: 21/06/2024 05:23:51

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 17/09/2014
Data da última atualização: | 02/06/2017
Autoria: | PASINI, M. P. B.; LÚCIO, A. D'C. A.; CARGENELUTTI FILHO, A.
Afiliação: | MAURÍCIO PAULO BATISTELLA PASSIN; ALESSANDRO DAL'COL LÚCIO; ALBERTO CARGNELUTTI FILHO.
Título: | Semivariogram models for estimating fig fly population density throughout the year.
Ano de publicação: | 2014
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 7, p. 493-505, jul. 2014.
Idioma: | Inglês
Notas: | Título em português: Modelos de semivariogramas para estimar a densidade populacional da mosca?do?figo ao longo do ano.
Conteúdo: | The objective of this work was to select semivariogram models to estimate the population density of fig fly (Zaprionus indianus ; Diptera: Drosophilidae) throughout the year, using ordinary kriging. Nineteen monitoring sites were demarcated in an area of 8,200m2, cropped with six fruit tree species: persimmon, citrus, fig, guava, apple, and peach. During a 24 month period, 106 weekly evaluations were done in these sites. The average number of adult fig flies captured weekly per trap, during each month, was subjected to the circular, spherical, pentaspherical, exponential, Gaussian, rational quadratic, hole effect, K?Bessel, J?Bessel, and stable semivariogram models, using ordinary kriging interpolation. The models with the best fit were selected by cross?validation. Each data set (months) has a particular spatial dependence structure, which makes it necessary to define specific models of semivariograms in order to enhance the adjustment to the experimental semivariogram. Therefore, it was not possible to determine a standard semivariogram model; instead, six theoretical models were selected: circular, Gaussian, hole effect, K?Bessel, J?Bessel, and stable.
Palavras-Chave: | Dependência espacial; Geoestatística; Manejo integrado; Monitoramento; Regionalized variables; Spatial dependence; Variável regionalizada.
Thesagro: | Controle integrado; Zaprionus Indianus.
Thesaurus Nal: | Geostatistics; Integrated pest management; Monitoring.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/108570/1/Semivariogram-models.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (56695-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS