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| Registros recuperados: 127 | |
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| OLIVEIRA,Jocieli de; ALMEIDA,Sara M.; FLORÊNCIO,Fernando P.; PINHO,João B.; OLIVEIRA,Dalci M. M.; LIGEIRO,Raphael; RODRIGUES,Domingos J.. |
| ABSTRACT Changes in environmental characteristics can affect habitat use by birds, impacting the number of individuals, number of species, and changing species composition and functional structure of assemblages. Metrics that evaluate the functional structure of biological assemblages constitute a complementary tool to the traditional taxonomic approach, because they quantify the differences between species by means of functional traits. We assessed the effect of environmental characteristics on the taxonomic diversity (species richness, species composition and number of individuals) and functional structure (functional richness, functional evenness, Rao’s functional diversity, and community-weighted mean traits) of bird assemblages in northern Mato Grosso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Assemblage structure; Habitat; Functional richness. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000300232 |
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| Souza,Maria Cristina de; Guillaumet,Jean-Louis; Aguiar,Izonete de Jesus Araujo. |
| Na Reserva Florestal Walter Egler, localizada a 64 km de Manaus, no município de Rio Preto da Eva, foi investigada a ocorrência de Pteridófitas ao longo de uma toposseqüência. O grupo ocorre nos três ambientes observados na área (baixio, vertente e platô) com diferença tanto qualitativa quanto quantitativa. Foram registrados 375 indivíduos, distribuídos em oito famílias, 10 gêneros e 17 espécies; entre epífitas, hemiepífitas, herbáceas e arbóreas. Das 8 famílias, 4 ocorrem em todos os ambientes: Dennstaedtiaceae, Hymenophyllaceae, Dryopteridaceae e Lomariopsidaceae, enquanto, Cyatheaceae e Vittariaceae ocorrem apenas no baixio. Das 17 espécies encontradas, sete ocorrem apenas no baixio, três na vertente e cinco são comuns em todos os ambientes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pteridófitas; Sub-bosque; Habitat; Hábito. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000400003 |
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| HELENBROOK,William. D.; WILKINSON,Madison L.; SUAREZ,Jessica A.. |
| ABSTRACT The black-headed night monkey, Aotus nigriceps, has one of the largest distribution ranges of the 11 night monkey species found across Central and South America. Yet, only three studies have focused on their ecology, describing considerable variation in habitat, group composition, and population density. Therefore, we analyzed habitat use, group composition, population density, and diet of 14 groups at two field sites in southeastern Peru. All sampled groups were found in secondary tropical rainforest, often dominated by native bamboo species. Half of the observed sleeping sites were in bamboo stands, though groups also emerged from cane thickets and lianas. This contrasts with other Aotus studies which have found groups living in tree cavities... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Primates; Aotidae; Conservation; Owl monkey; Nocturnal; Habitat. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100037 |
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| García-Mateos,Rosario; Soto-Hernández,Marcos; Zavala-Chávez,Fernando; Kite,Geofrey. |
| Abstract The purpose of this study was to compare the alkaloid profile in different tissues analyzed by GC/MS and to contribute to the ecological knowledge of Calia secundiflora (patol). Samples of leaves, root and seeds of patol (mescal bean) were collected and field information was recorded in the States of Hidalgo and Querétaro, México, using the point-centered quarted method. Species dominance was calculated (value of importance) and the two locations were compared in species richness, similarity index, and soil data. Seventeen species of plants were found in Hidalgo and 21 in Querétaro; Flourensia resinosa and patol dominated the vegetation in Hidalgo, while patol and Dodonaea viscosa dominated in Querétaro. The profile of the quinolizidine alkaloids... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dodonaea viscosa; Flourensia resinosa; Ecology; Fabaceae; Habitat; Toxicity. |
| Ano: 2007 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952007000200161 |
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| SAMPAIO,HEBERT A.; MARTINELLI-LEMOS,JUSSARA M.. |
| The present work investigated the occupation and the correlation of the shrimp abundance in relation to environmental variables in different habitats (mangroves, salt marshes and rocky outcrops) in an Amazon estuary. The collections were made in August and November 2009, at low syzygy tide on Areuá Beach, situated in the Extractive Reserve of Mãe Grande de Curuçá, Pará, Brazil totaling 20 pools. In each environment, we recorded the physical-chemical factors (pH, salinity, and temperature) and measured the area (m2) and volume (m3) of every pool through bathymetry. The average pH, salinity, temperature, area and volume of tide pools were 8.75 (± 0.8 standard deviation), 35.45 (± 3), 29.49 °C (± 2.32), 27.41 m2 (± 41.18), and 5.19 m3(± 8.01), respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Habitat; Density; Biomass; Decapoda. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100333 |
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| Crivelaro,R.M.; Thiesen,R.; Aldrovani,M.; Lima,T.B.; Ortêncio,K.P.; Padua,I.R.M.; Duarte,J.M.B.; Laus,J.L.. |
| ABSTRACT The aim of this study was to establish normal baseline ERG values of 23 anesthetized deer belonging to 8 neotropical species (Mazama americana, Mazama nemorivaga, Mazama gouazoubira, Mazama nana, Mazama bororo, Ozotocerus bezoarticus, Odocoileus virginianus and Blastocerus dichotomus). Only right eyes were studied. Chemical restraint was performed using xylazine associated with ketamine, IM, for M. americana, M. gouazoubira, M. nemorivaga, M. nana, M. bororo, O. bezoarticus and O. virginianus. A combination of tiletamine/zolazepam diluted in xylazine 2% was used for B. dichotomus individuals. After 20min of dark adaptation, electroretinograms were obtained using a handheld electroretinography (ERG) machine using the QuickRetCheck Protocol at three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cervidae; Habitat; Retina; Wild animal; ERG. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501505 |
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| Cunico,Almir Manoel; Agostinho,Angelo Antonio. |
| The aim of this study was to determine morphological patterns of the most abundant fish species found in reservoirs with different hydraulic retention times and stages of colonization, considering habitat strata and feeding strategies. Samplings were carried out in six Paraná State (Brazil) reservoirs, and morphological data were obtained from 15 individuals of 17 fish species. Ecomorphological attributes that best segregated species, were selected using Discriminant Analysis. These selected attributes were later used in a Principal Components Analysis (PCA). Differences among reservoirs concerning occupation of the ecomorphological space were tested through analysis of variance (null models). The six reservoirs differed in the occupation of the fish... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecomorphology; Feeding strategies; Habitat; Reservoir. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100015 |
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| Tumialis,Dorota; Pezowicz,Elżbieta; Skrzecz,Iwona; Mazurkiewicz,Anna; Maszewska,Justyna; Pietraszczyk,Joanna Jarmuł; Kucharska,Kornelia. |
| ABSTRACT: Entomopathogenic nematodes ( Steinernematidaeand Heterorhabditidae) were studied in Polish soils according to the: season, habitat and altitude. In total, 167 soil samples were taken from 111 localities in Poland along north-south transect. Entomopathogenic nematodes were isolated from 53 soil samples (31.7%). Nematodes species were identified genetically from 16 samples, and in all other 37 samples nematodes were determined to the genus level. Three species of the genus Steinernema ( Steinernema kraussei, S. feltiae, S. carpocapsae) and one of the genus Heterorhabditis( Heterorhabditis megidis) were recorded. Steinernema feltiaewas the most common species. There was not a significant association between the occurrence of nematodes and season... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Steinernema; Heterorhabditis; Poland; Season; Habitat. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701126 |
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| Martínez Calderas, Jesús Manuel. |
| Con el objetivo de delimitar la distribución geográfica del ocelote en el noreste de México, se ubicaron nuevos registros así como datos de ausencia probable. El estudio se realizó de mayo del 2006 a mayo del 2009 en la Zona Media y Huasteca de San Luis Potosí y en la Planicie Costera de Tamaulipas. Los registros se situaron mediante recorridos de campo, entrevistas y sensores fotográficos. Se aplicó un análisis discriminante y regresión logística a nueve variables (vegetación, cobertura, altitud, pendiente, distancia a cuerpo de agua, grado de impacto, distancia a caminos, distancia a poblados y densidad de habitantes a 16 km2) del hábitat del sitio donde se ubicaron los registros, obteniéndose las que explican estadísticamente la presencia de... |
| Tipo: Tesis |
Palavras-chave: Ocelote; Nuevos registros; Distribución potencial; Hábitat; Maestría; Ganadería; Ocelot; New records; Potential distribution; Habitat. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1222 |
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| Flores Barrera, César Iván. |
| El jaguar es el felino más grande del continente Americano, por lo que tiene demandas alimenticias de grandes presas y hábitats extensos, esto propicia conflictos con los humanos debido a la fragmentación de su hábitat. En México se encuentra enlistado como en peligro de extinción en la NOM-059-SEMARNAT-2010. Por lo que es importante determinar si hay parches de hábitat que sean utilizados por el jaguar como corredores dentro de la Sierra Madre Oriental; específicamente, en la región que hay entre la Sierra del Abra-Tanchipa y la Sierra de Cerro Alto. El objetivo de este estudio fue determinar la existencia de un corredor para jaguar (Panthera onca) entre las Sierras del Abra-Tanchipa y Cerro Alto, del municipio de Ciudad Valles, San Luis Potosí. El... |
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Palavras-chave: Jaguar; Corredores; Conectividad; Hábitat; Fragmentación; Corridors; Connectivity; Habitat; Fragmentation; Ganadería; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2385 |
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| Martínez Calderas, Jesús Manuel. |
| Con el objetivo de delimitar la distribución geográfica del ocelote en el noreste de México, se ubicaron nuevos registros así como datos de ausencia probable. El estudio se realizó de mayo del 2006 a mayo del 2009 en la Zona Media y Huasteca de San Luis Potosí y en la Planicie Costera de Tamaulipas. Los registros se situaron mediante recorridos de campo, entrevistas y sensores fotográficos. Se aplicó un análisis discriminante y regresión logística a nueve variables (vegetación, cobertura, altitud, pendiente, distancia a cuerpo de agua, grado de impacto, distancia a caminos, distancia a poblados y densidad de habitantes a 16 km2) del hábitat del sitio donde se ubicaron los registros, obteniéndose las que explican estadísticamente la presencia de... |
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Palavras-chave: Ocelote; Nuevos registros; Distribución potencial; Hábitat ocelot; New records; Potential distribution; Habitat. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/898 |
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| Coronado Quibrera, Wendy Paola. |
| Puma yagouaroundi es una especie no estudiada en San Luis Potosí. En este estudio se obtuvieron nuevos registros, se describió el hábitat y se crearon las bases para un modelo de distribución potencial. El muestreo se llevó a cabo de octubre 2008- mayo 2009 mediante entrevistas en 96 comunidades rurales de la Zona Media, Centro y Huasteca. La información se agrupó en tres clases usando un criterio analítico de veracidad. Los lugares donde hubo avistamientos se visitaron y se tomaron los datos del hábitat. Se obtuvieron 58 registros de presencia y 34 de ausencia. Los pastizales (24%), zonas de cultivo (21%), y selvas (19%) fueron los tipos de vegetación más frecuentes en los sitios de avistamiento. Las selvas (46%) y pastizales (22%) como vegetación... |
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Palavras-chave: Distribución; Hábitat; Presencia-ausencia; Cobertura de acecho; SIG; PAJ; Distribution; Habitat; Presence-absence; Ambush cover; GIS; AHP; Maestría; Ganadería. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/418 |
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| Registros recuperados: 127 | |
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