Consulta: subjectFacets:"Functional connectivity"
Registros recuperados: 4
Data/hora: 12/06/2024 11:04:45

A Note on Creating Robust Resistance Surfaces for Computing Functional Landscape Connectivity
Provedor de dados: 7
Autores: Theobald, David M.; Colorado State University; davet@nrel.colostate.edu.
Tipo: Peer-Reviewed Response
Palavras-chave: Cost-weighted surfaces; Functional connectivity; GIS methods.
Ano: 2005

Gene pool sharing and genetic bottleneck effects in subpopulations of Eschweilera ovata (Cambess.) Mart. ex Miers (Lecythidaceae) in the Atlantic Forest of southern Bahia, Brazil
Provedor de dados: 74
Autores: Santos,Alesandro S.; Borges,Daniela B.; Vivas,Caio V.; Berg,Cassio Van Den; Rodrigues,Polliana S.; Tarazi,Roberto; Gaiotto,Fernanda Amato.
Abstract Forest loss and fragmentation are the main threats to the maintenance of the Atlantic Forest, an important global biodiversity hotspot. Because of the current critical level of deforestation, ecological corridors are needed to facilitate species dispersion and gene flow among fragments. This study was conducted to investigate the genetic variability and gene pool sharing of Eschweilera ovata in five forest remnants in southern Bahia, Brazil using nuclear simple sequence repeat (nSSR) and plastid simple sequence repeat (cpSSR) microsatellite markers. cpSSR marker analysis revealed the domains of four haplotypes, showing that 80% of the individuals had only four maternal origins, reflecting a founder effect and/or genetic bottleneck. The results of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional connectivity; Tree species; Chloroplast; Founder effect; Simple sequence repeat development.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400655

Identification of priority areas for landscape connectivity maintenance in the Xingu Area of Endemism in Brazilian Amazonia
Provedor de dados: 36
Autores: CASTRO,Rodrigo Baia; PEREIRA,Jorge Luis Gavina; SATURNINO,Regiane; MONTEIRO,Paula Sueli Duarte; ALBERNAZ,Ana Luisa Kerti Mangabeira.
ABSTRACT Forest fragmentation has been intense in the eastern Amazon region, which has negatively affected wildlife populations. The speed of deforestation in this region underscores the urgent need to understand the effects of such changes on populations of endemic species, and to implement measures for ecosystem conservation. We analyzed the extent to which fragmented forests are still connected in the Xingu Area of Endemism, in the eastern Brazilian Amazon, and assigned conservation priority to fragments most important for connectivity maintenance. We structurally classified the Xingu landscape using the Morphological Spatial Pattern Analysis and ranked each fragment according to its importance using an Index of Connectivity. Our data revealed important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional connectivity; Spatial analysis; Integral index of connectivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100068

Schizophrenia and reelin: a model based on prenatal stress to study epigenetics, brain development and behavior
Provedor de dados: 48
Autores: Negrón-Oyarzo,Ignacio; Lara-Vásquez,Ariel; Palacios-García,Ismael; Fuentealba,Pablo; Aboitiz,Francisco.
Schizophrenia is a severe psychiatric disorder that results in a significant disability for the patient. The disorder is characterized by impairment of the adaptive orchestration of actions, a cognitive function that is mainly dependent on the prefrontal cortex. This behavioral deficit, together with cellular and neurophysiological alterations in the prefrontal cortex, as well as reduced density of GABAergic cells and aberrant oscillatory activity, all indicate structural and functional deficits of the prefrontal cortex in schizophrenia. Among the several risk factors for the development of schizophrenia, stress during the prenatal period has been identified as crucial. Thus, it is proposed that prenatal stress induces neurodevelopmental alterations in the...
Tipo: Journal article
Palavras-chave: Schizophrenia; Prefrontal cortex; Prenatal stress; Functional connectivity; DNA methylation; Reelin.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100016