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Caracterização demográfica da raça Mangalarga Marchador Arq. Bras. Med. Vet. Zootec.
Costa,M.D.; Bergmann,J.A.G.; Resende,A.S.C; Martins,G.A.; Bretas,M.S..
Data from the Brazilian Mangalarga Marchador Breed Association, including information on 292,012 animals borned from 1949 to 2000 were used to describe population structure. Frequency tables, central tendency and variation measurements according to owner, breeder, type of registration (known and unknown pedigree), year and month of births, progeny number for stallions and mares were presented. A total of 72.6% of the animals originated from the Southeast States of Brazil. The maximum number of birth (6.7%) was observed in 1990 and approximately 90.0% of the births occurred from September to March. Concerning progeny numbers, 73.6% of the 90,018 mares produced an average of 3.8 and a maximum of 22 offsprings. For the stallions these numbers were 26.2 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cavalo; Mangalarga Marchador; Estrutura demográfica; Intervalo de gerações.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000500020
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Diametric distribution of a dystrophic cerradão in Distrito Federal, Brazil PFB - Pesquisa Florestal Brasileira
Silva, Juliana Silvestre; Felfili, Jeanine Maria.
This study evaluated the diametric structure of the biological reserve of Cerradão (REBIO do Cerradão), from the analysis of the diametric distributions of the community and its main populations, ordered according to the importance value (IV). The individuals distribution ratio by diametric classes were evaluated by regression and variance analysis. The values of “q” and “R²” indicated that Qualea grandiflora Mart. was the species with the most balanced distribution and greater tendency to equilibrium, and Terminalia fagifolia Mart. the only one that did not show the J-reverse shape. The cerradão seems to be able to recover from random events, but new measurements need to be made to permit more robust conclusions.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Regenerative potential; Demographic structure; Conservation area Botânica; Fitossociologia Potencial regenerativo; Estrutura demográfica; Unidade de conservação.
Ano: 2012 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/395
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