Buscar
Mostrando ítems 1-10 de 11466
Patch-size and isolation effects in the Fisher-Kolmogorov equation
(Springer, 2008-10-01)
We examine the classical problem of the existence of a threshold size for a patch to allow for survival of a given population in the case where the patch is not completely isolated. The surrounding habitat matrix is ...
Pollen Dispersal Between Isolated Trees in the Brazilian Savannah: A Case Study of the Neotropical Tree Hymenaea stigonocarpa
(Wiley-Blackwell, 2011-03-01)
This case study examines the pollen dispersal distance, pollen dispersal patterns and intra-family genetic structure for isolated trees in pastures of the bat-pollinated Neotropical tree species Hymenaea stigonocarpa using ...
Chapter 6: Founder variations in isolated populations
(2020)
Isolated populations, also called population isolates and genetic isolates, present several characteristic features that make them useful in the study of the genetic basis of both Mendelian and complex disorders. The ...
Isolation and molecular identification of potentially pathogenic Escherichia coli and Campylobacter jejuni in feral pigeons from an urban area in the city of Lima, Peru
(Instituto de Medicina Tropical de São Paulo, 2015)
Feral pigeons (Columbia livia) live in close contact with humans and other animals. They can transmit potentially pathogenic and zoonotic agents. The objective of this study was to isolate and detect strains of diarrheagenic ...
Comparative genomic survey of Bacillus cereus sensu stricto isolates from the dairy production chain in Brazil
(Oxford Univ Press, 2018-02-01)
The genomes of 262 Bacillus cereus isolates were analyzed including 69 isolates sampled from equipment, raw milk and dairy products from Brazil. The population structure of isolates showed strains belonging to known ...
Estimation of population genetic parameters in human isolates from Vale do Ribeira, São Paulo ("Quilombo" populations)
(Sociedade Brasileira de Genática - SBGÁguas de Lindóia, 2013-09-16)
Ca. four million Africans were brought as slaves to di erent Brazilian regions during about 300 years in colonial
times. Many quilombo populations were founded by runaway or abandoned African slaves in Brazilian isolated ...
Patch-size and isolation effects in the Fisher-Kolmogorov equation
(Springer, 2008-10-01)
We examine the classical problem of the existence of a threshold size for a patch to allow for survival of a given population in the case where the patch is not completely isolated. The surrounding habitat matrix is ...
Spatial genetic structure of coffee-associated xylella fastidiosa populations indicates that cross infection does not occur with sympatric citrus orchards
(2017-04-01)
Xylella fastidiosa, an economically important plant-pathogenic bacterium, infects both coffee and citrus trees in Brazil. Although X. fastidiosa in citrus is well studied, knowledge about the population structure of this ...
The role of hybridization and introgression in maintaining species integrity and cohesion in naturally isolated inselberg bromeliad populations
(Wiley-Blackwell, 2019-01-01)
Hybridization is a widespread phenomenon present in numerous lineages across the tree of life. Its evolutionary consequences range from effects on the origin and maintenance, to the loss of biodiversity. We studied genetic ...