Consulta: creatorFacets:"González,Susana"
Registros recuperados: 5
Data/hora: 09/06/2024 14:46:26

Molecular identification of Mazama species (Cervidae: Artiodactyla) from natural history collections
Provedor de dados: 74
Autores: Mantellatto,Aline Meira Bonfim; González,Susana; Duarte,José Maurício Barbanti.
Abstract Natural history museum collections constitute an invaluable patrimony of biological diversity for analysing the taxa distribution and evolution. However, it is very common to discover taxonomic misidentification in museum collections based on incorrect data. The aim of this research was to identify brocket deer species (Mazama genus) using molecular markers. We collected 199 samples, performed DNA extraction and species identification using a specific mitochondrial marker based on a fragment of cytochrome b (Cytb) for Neotropical deer. We achieved the amplification and sequencing of 77 specimens and verified that 26% of the skulls were wrongly identified. Moreover, in the museum collections 57% of the specimens were only identified as Mazama sp,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytochrome b; Deer; DNA; Mammal; Morphological taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400201

Feeding ecology of Ozotoceros bezoarticus: conservation implicationsin Uruguay
Provedor de dados: 76
Autores: Cosse,Mariana; González,Susana; Gimenez-Dixon,Mariano.
The pampas deer (Ozotoceros bezoarticus Linnaeus, 1758) was in the recent past one of the most characteristic species in the Uruguayan grasslands. However, today the species is very rare, with small relict populations inhabiting in few ranches. To improve our understanding of pampas deer habitat use in modified ecosystems and propose management guidelines we analyzed the pampas deer feeding ecology at Los Ajos ranch. We performed an annual vegetation survey with the purpose to identify the main components of pampas's deer diet and the spatial overlap with livestock. Vegetation offer was characterized by predominance of monocotyledon plants; in three of the four sample periods. The preference values for the crops were positive for ryegrass in winter (0.24)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Habitat use; Mixed feeders; Niche overlap; Pampas deer.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000200007

Non invasive methods for genetic analysis applied to ecological and behavioral studies in Latino-America
Provedor de dados: 96
Autores: González,Susana; Duarte,José Mauricio Barbanti.
Documenting the presence and abundance of the neotropical mammals is the first step for understanding their population ecology, behavior and genetic dynamics in designing conservation plans. The combination of field research with molecular genetics techniques are new tools that provide valuable biological information avoiding the disturbance in the ecosystems, trying to minimize the human impact in the process to gather biological information. The objective of this paper is to review the available non invasive sampling techniques that have been used in Neotropical mammal studies to apply to determine the presence and abundance, population structure, sex ratio, taxonomic diagnostic using mitochondrial markers, and assessing genetic variability using nuclear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptic species; Fecal DNA; Non invasive sampling.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000011

Proteoglycans production by aortic vascular smooth muscle cells from hypertensive rats
Provedor de dados: 47
Autores: Risler,Norma; Castro,Claudia; Cruzado,Montserrat; González,Susana; Miatello,Roberto.
Remodeling of large and small arteries contributes to the development and complications of hypertension. Artery structural changes in chronic sustained hypertension include vascular smooth muscle cells (VSMC) proliferation and extracellular matrix (ECM) modifications. Extracellular constituents such as proteoglycans (PGs), may modulate vascular stiffness and VSMC growth and differentiation. We examined the effect of growth factors on secreted and membrane-bound PGs synthesis by cultured aortic smooth muscle cells (SMC) from 12- to 14- week-old spontaneously hypertensive rats (SHR) and age-matched Wistar rats. After stimulation with platelet-derived growth factor (PDGF-BB), 10% fetal calf serum (FCS) or 0.1% FCS as control, PGs synthesis (dpm/ng DNA) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vascular Smooth Muscle Cells; Extracellular Matrix Proteoglycans; Hypertension; Spontaneously Hypertensive Rats.
Ano: 2003
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000200004

Efecto del acondicionado previo al almacenaje refrigerado sobre la calidad de ciruelas 'Constanza'
Provedor de dados: 53
Autores: Seibert,Eduardo; González,Susana; Orellana,Ariel; Luchsinger,Luis; Bender,Renar João.
El efecto del acondicionado a 20 ºC por 6 días previo al almacenaje refrigerado sobre la calidad y el desarrollo de daños por frío fue estudiado en ciruelas 'Constanza'. Terminado el tratamiento las ciruelas fueron almacenadas a 0 ºC por 7, 14, 21, 28, 35 y 42 días, o a 5 ºC por 7, 14 y 21 días, con evaluaciones a la cosecha, en cada salida de frío y después de madurar a 20 ºC. Como control las frutas fueron almacenadas a 0 y 5 ºC, sin acondicionar. Las pérdidas de masa fresca fueron bajas durante el almacenaje a 0 o 5 ºC y aumentaron en la maduración. La firmeza cambió poco en las ciruelas-control a 0 ºC, mientras que en las acondicionadas disminuyó hasta los 28 días a 0 ºC. El acondicionado combinado con el almacenaje a 5 ºC causó una gran pérdida de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frutos de carozo; Ciruela; Calentamiento; Refrigeración; Daños por frío.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052008000100028