| Texto completo | |
| Autor(es): |
Conceicao, Katiane S.
[1]
;
Pires, Rubiane M.
[1]
;
Louzada, Francisco
[2]
;
Andrade, Marinho G.
[2]
;
Diniz, Carlos A. R.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Fed Sao Carlos, Dept Estat, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Inst Ciencias Matemat & Computacao, Dept Matemat Aplicada & Estat, BR-13565905 Sao Carlos, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BRAZILIAN JOURNAL OF PROBABILITY AND STATISTICS; v. 28, n. 3, p. 446-460, AUG 2014. |
| Citações Web of Science: | 0 |
| Resumo | |
Species richness is related to various factors, such as mutation, interaction, competition and the amount of available resources for survival, among others. Additionally, species richness is related to the size of the habitat area (species-area relationship). A major problem in ecology is to identify the best function that models this relationship. The main aim of the paper is to propose a generalized fitting formula for the species-area relationship. The advantage of our model is that it leads to a unique formulation for species-area relationships, which takes into account both the effects of the minimal area and asymptotic behavior of the growth curve for large areas. This approach provides a unique algorithm for fitting different datasets, and choosing the best model in light of the data. The applicability of our approach was tested via a simulation study conducted to determine if two usual selection criteria are suitable to choose the best formulation to be considered to describe species-area relationships. Real datasets involving a species richness of fish in 70 lakes was analysed using the proposed methodology. (AU) | |
| Processo FAPESP: | 07/07612-0 - Uso de transformacoes em modelos generalizados da familia exponencial, modelos simetricos e modelos de volatilidade estocastica. |
| Beneficiário: | Marinho Gomes de Andrade Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 08/10613-1 - Modelos Série de Potência Zero-Modificados |
| Beneficiário: | Katiane Silva Conceição |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |