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| Registros recuperados: 86 | |
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| PINHEIRO,MARCELO A.A.; SOUZA,MARCELO R.; SANTOS,LUCIANA C.M.; FONTES,ROBERTO F.C.. |
| ABSTRACT Ucides cordatus is a relevant fishery resource of Brazilian mangroves and requires legal normative to sustainable use based on stock assessment and management. This study evaluated some population parameters (structure, density, abundance, fishery potential and stock) of this crab species in Brazil Southeast (São Paulo, State), discussing the use of the results to delineate fishery management strategies. Density was monthly evaluated (September 1998 to August 1999), using five sample quadrats of 2x2 m. Density (ind.m-2) was indirectly estimated by counting the opened (with biogenic activity) and closed galleries, and contrasted with flooding level by tides using the vertical distribution of macroalgae in the base of trees. Density of U. cordatus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crab; Crustacean; Fishery; Management; Mangrove; Population. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401381 |
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| ZHENG,LIHONG; SUN,HAIMING; WANG,JINGWEI; LI,SHILIN; BAI,JING; JIN,YAN; YU,YANG; CHEN,FENG; JIN,LI; FU,SONGBIN. |
| Y chromosomal STRs show sufficient variability among individduals in a population and a high degree of geographical differentiation, such that their polymorphic character makes them especially suited for population genetic studies. To investígate the polymorphism of a set of 17 Y-STR loci in northern China, we genotyped the 17 Y chromosomal STR loci in a population sample of 377 unrelated males from eight ethnic populations in northern China. We calculated the haplotype frequencies, Rst value and carried out the analysis of molecular variance (AMOVA). We then drew the multidimensional scaling analysis (MDS) plot and phylogenetic tree based on the Rst value. All populations showed a high level of haplotype diversity, with low inter-population variance as... |
| Tipo: Journal article |
Palavras-chave: China; Population; STR; Y chromosome. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000400011 |
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| Abbas,Zafar; Akmal,Muhammad; Khan,Khalid Saifullah; Fayyaz-ul-Hassan,. |
| The present study aimed to evaluate the effect of bromoxynil herbicide on soil microorganisms, with the hypothesis that this herbicide caused suppression in microbial activity and biomass by exerting toxic effect on them. Nine sites of Punjab province (Pakistan) those had been exposed to bromoxynil herbicide for about last ten years designated as soil 'A' were surveyed in 2011 and samples were collected and analyzed for Microbial Biomass Carbon (MBC), Biomass Nitrogen (MBN), Biomass Phosphorus (MBP) and bacterial population. Simultaneously, soil samples from the same areas those were not exposed to herbicide designated as soil 'B' were taken. At all the sites MBC, MBN and MBP ranged from 131 to 457, 1.22 to 13.1 and 0.59 to 3.70 µg g-1 in the contaminated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Buctril super; Bacteria; Effect; Population. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100002 |
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| Silva,Edney Pereira da; Sakomura,Nilva Kazue; Hauschild,Luciano; Gous,Robert Mervyn. |
| The use of a linear-plateau procedure to describe the response of an individual in the population has theoretical support, since the maximum potential performance of each individual is genetically determined, and any increment in intake of the limiting nutrient above maintenance will result in a linear response in output until this genetic potential, and hence requirement, is reached. However, because of the distribution of body weights and maximum potential outputs in the population, the mean response of the population is curvilinear, which negates the possibility of defining a 'requirement' for the limiting nutrient, and instead leads to the possibility of defining an optimum economic intake of the nutrient.. The Reading model describes the response of a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg mass; Mathematical model; Optimal economic; Population. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300450 |
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| Gotts, Nicholas M.; Macaulay Land Use Research Institute; n.gotts@macaulay.ac.uk. |
| The paper compares two ambitious conceptual structures. The first is the understanding of social-ecological systems developed around the term "resilience," and more recently the term "panarchy," in the work of Holling, Gunderson, and others. The second is Wallerstein's "world-systems" approach to analyzing hierarchical relationships between societies within global capitalism as developed and applied across a broader historical range by Chase-Dunn and others. The two structures have important common features, notably their multiscale explanatory framework, links with ideas concerning complex systems, and interest in cyclical phenomena. They also have important differences. It is argued that there are gaps in both sets of ideas that the other might remedy.... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Adaptive cycle; Cross-scale interaction; Panarchy; Population; Resilience; Technology; World-systems.. |
| Ano: 2007 |
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| Arruda,Cinthya Cristina Bulhões; Beasley,Colin Robert; Vallinoto,Marcelo; Marques-Silva,Nelane do Socorro; Tagliaro,Claudia Helena. |
| Four Brazilian populations of Anomalocardia brasiliana were tested for mutual genetic homogeneity, using data from 123 sequences of the mtDNA cytochrome oxidase c subunit I gene. A total of 36 haplotypes were identified, those shared being H3 (Canela Island, Prainha and Acupe) and both H5 and H9 (Prainha and Acupe). Haplotype diversity values were high, except for the Camurupim population, whereas nucleotide values were low in all the populations, except for that of Acupe. Only the Prainha population showed a deviation from neutrality and the SSD test did not reject the demographic expansion hypothesis. Fst values showed that the Prainha and Acupe populations represent a single stock, whereas in both the Canela Island and Camurupim stocks, population... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: MtDNA; COI; Population; Anomalocardia brasiliana; Conservation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200033 |
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| RICHE, G. R.; MANTOVANI, L. E.. |
| Trata sobre o Municipio de Ribeiropolis (SE). Traz a localizacao, extensao, populacao, clima, geologia, vegetacao, relevo , hidrografia, as unidades geo-ambientais, as grandes unidades de solos, os quadros agrario e agricola, recomendacoes e sugestoes complementares. Anexo: roteiro metodologico para o zoneamento geo-ambiental a nivel de municipio no Estado de Sergipe. |
| Tipo: Folhetos |
Palavras-chave: Extensao; Localizacao; Sergipe; Ribeiropolis; Extension; Localization; Relievo; Hydrography; Solo; Clima; Ecologia; Geologia; Hidrografia; População; Relevo; Vegetação; Soil; Climate; Ecology; Geology; Brazil; Population; Vegetation. |
| Ano: 1985 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133057 |
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| BARROS, A. T. M. de. |
| O Pantanal representa uma das regiões mais importantes do pais em termos de Pecuária de corte, com um rebanho estimado em cerca de 3,8 milhões de cabeças (Cadavid Garcia, 1986). Desde sua chegada a região em 1991 (Barros, 1992), a mosca-dos-chifres (Haematobia irritans) tem gerado uma significativa apreensão a classe produtora. A ocorrência inicial de níveis de infestação considerados prejudiciais e a crescente demanda por um programa de controle evidenciaram a necessidade de estudos na região. Desde 1993, pesquisas vem sendo desenvolvidas visando definir as épocas, níveis e duracao das infestações nos bovinos, com o objetivo de avaliar a magnitude do problema e propor um programa de controle adequado ao Pantanal. Paralelamente, tendo em vista a... |
| Tipo: Folhetos |
Palavras-chave: Mosca-dos-chifres; Brasil; Infestation; Haematobia Irritans; Infestação; População; Pantanal; Population. |
| Ano: 1995 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/931146 |
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| Registros recuperados: 86 | |
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