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Registros recuperados: 145
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Activity pattern and habitat selection by invasive wild boars (Sus scrofa) in brazilian agroecosystems. Repositório Alice
MARTINS, F. I.; MOURAO, G. de M.; CAMPOS, Z. M. da S.; PELLEGRIN, A. O.; SILVA, V. S..
Wild boar populations are rapidly spreading through midwest Brazil, causing crop damage, impacting biodiversity and, possibly, spreading diseases to livestock. Despite their threat, little is known about introduced populations in Brazilian agricultural landscapes. The critical lack of knowledge about basic aspects of wild boar spatial ecology led us to evaluate home range sizes, activity pattern and habitat selection in interface regions of agricultural crops and natural riparian forests. We captured and monitored seven individuals using global position system collars throughout 19 to 77 days. The home range sizes calculated by Minimum Convex Polygon and Biased Random Bridge Kernel ranged from 273 to 1253 ha (median = 497 ha) and from 129 to 779 ha (median...
Tipo: Artigo de periódico Palavras-chave: Porco Selvagem.; Javali; Comportamento Animal; Habitat; Animal behavior; Wildlife habitats; Wild boars..
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112634
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Niche partitioning among Mesocarnivores in a brazilian wetland. Repositório Alice
BIANCHI, R. de C.; OLIFIERS, N.; GOMPPER, M. E.; MOURAO, G..
Was investigated the home range size, habitat selection, as well as the spatial and activity overlap, of four mid-sized carnivore species in the Central Pantanal, Mato Grosso do Sul, Brazil. From December 2005 to September 2008, seven crab-eating foxes Cerdocyon thous, seven brown-nosed coatis Nasua nasua, and six ocelots Leopardus pardalis were radio-collared and monitored. Camera trap data on these species were also collected for the crab-eating raccoon Procyon cancrivorus. Was hypothesized that there would be large niche differentiation in preferred habitat-type or active period between generalist species with similar diet, and higher similarity in habitat-type or activity time between the generalist species (crab-eating foxes and coatis) and the more...
Tipo: Separatas Palavras-chave: Procyon cancrivorus.; Comportamento animal; Habitat; Niches; Leopardus pardalis; Cerdocyon thous; Nasua nasua; Animal behavior..
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1058808
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Discovery of underground shelters occupied by the Chacoan Marsh Rat after massive wildfires in Pantanal. Repositório Alice
SEMEDO, T. B. F; LIBARDI, G. S.; STRÜSSMANN, C.; BERLINCK, C. N.; TOMAS, W. M.; GARBINO, G. S. T..
Abstract: The drought and wildfires that swept through Pantanal, the major South American wetland, in 2020 severely impacted the local biota. The resilience of native species to these types of extreme events remains largely unknown. During post-wildfire surveys at recently affected sites, we found three burrows containing the semi-aquatic Chacoan marsh rats (Holochilus chacarius). We also found a callichthyid catfish (Hoplosternum sp.) and a trichodactylid crab (Dilocarcinus pagei) alive and co-habiting one of the burrows with H. chacarius. We report for the first time the use of underground structures with a flooded chamber by the Chacoan marsh rat. We discussed the importance of these burrows for post-fire survivorship and whether they may serve as...
Tipo: Artigo de periódico Palavras-chave: Animal Selvagem; Comportamento Animal; Habitat; Dry season; Animal behavior; Habitat preferences; Wetlands.
Ano: 2022 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1140322
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Uso de plantios de pinus e remanescentes de floresta com araucária por felinos na região Centro-Sul do Estado do Paraná. Repositório Alice
DIAS, M.; DAL'MASO, A.; MIKICH, S. B.; ROCHA-MENDES, F..
Tipo: Separatas Palavras-chave: Felinos.; Araucária; Habitat; Pinus spp..
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/312671
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Habitat selection in natural and human-modified landscapes by capybaras (Hydrochoerus hydrochaeris), an important host for Amblyomma sculptum ticks. Repositório Alice
DIAS, T. C.; STABACH, J. A.; HUANG, Q.; LABRUNA, M. B.; LEIMGRUBER, P.; FERRAZ, K. M. P. B.; LOPES, B.; LUZ, H.; COSTA, F. B.; BENATTI, H.; CORREA, L. R.; NIEVAS, A. M.; MONTICELLI, P. F.; PIOVEZAN, U.; SZABO, M. P. J.; AGUIAR, D. M.; BRITES NETO, J.; PORT CARVALHO, M.; ROCHA, V. J..
Tipo: Artigo de periódico Palavras-chave: Paisagem modificada; Capivara; Habitat.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129124
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Área de vida do veado-catingueiro (mazama gouazoubira; Fisher, 1814) no Pantanal da Nhecolândia-MS. Repositório Alice
PERES, P. H. de F.; GROTA NETO, F.; PIOVEZAN, U.; DUARTE, J. M. B..
O gênero é Mazama possui dez espécies reconhecidas, sendo o mais diverso entre os cervídeos neotropicais. As características ecológicas deste grupo, adaptado para ambientes florestais fechados, constituem a principal razão pela qual a história natural do gênero é pouco estudada (Barrette, 1987). Como consequência dessa escassez, considera-se que 3 espécies do gênero possuam dados insuficientes, porém as outras cinco já estão enquadradas em alguma categoria de ameaça (IUCN, 2012). Na literatura, o total de animais do gênero monitorados por telemetria era de 15 indivíduos (13 M. gouazoubira e 2 M. americana), sendo 7 deles translocados (Ramos et al., 2010; Black-Décima et al., 2010). Nesse contexto, desenvolver metodologias para captura e obtenção de dados...
Tipo: Separatas Palavras-chave: Dados ecológicos.; Habitat; Seleção; Veado.; Pantanal..
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/972637
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Distribution and conservation status of giant otter Pteronura brasiliensis in the Pantanal wetland, Brazil. Repositório Alice
TOMAS, W. M.; CAMILO, A. R.; RIBAS, C.; LEUCHTENBERGER, C; BORGES, P. A. L; MOURAO, G.; PELLEGRIN, L. A..
The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Appendix I of CITES and is classified as endangered by the IUCN. In Brazil, few viable populations persist outside the Amazon basin and the Pantanal wetland. Furthermore, there is limited information on the distribution and abundance of the existing populations. The aim of this study was to estimate the abundance of giant otters in the Pantanal wetland and to discuss the conservation status of this population. From July 2000 to November 2011 we conducted surveys throughout the Pantanal to detect the occurrence of giant otters by the observations of active dens and latrines and the direct visualization of the otters. We also monitored giant otter population in five...
Tipo: Separatas Palavras-chave: Ariranha; Conservação de espécie; Espécie nativa; Habitat; Pteronura brasiliensis; Indigenous species; Wetland conservation.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1033599
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Camera trap feasibility for ecological studies of elusive forest deer. Repositório Alice
GROTTA NETO, F.; PERES, P. H.; PIOVEZAN, U.; PASSOS, F. C.; DUARTE, J. M. B..
The difficulty in observing and capturing elusive species in the wild is one of the main reasons for the limited number of studies on such species. This knowledge gap affects the development of conservation and management plans. Hence, testing the feasibility of research tools is essential for the future use and reliability of such tools. Camera traps increasingly are used as an alternative to capturing animals for wildlife research, and to generate important data for the management and conservation of many species. We identified individual free‐ranging gray brocket deer (Mazama gouazoubira) from the Brazilian Pantanal by their natural markings. From October 2011 through September 2012, we investigated the feasibility of using camera traps for...
Tipo: Artigo de periódico Palavras-chave: Cervo; Veado mateiro; Veado; Fauna; Habitat; Deer; Cervidae; Habitats.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129135
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Anuran interactions with the bromeliad Bromelia balansae in the Brazilian Pantanal. Repositório Alice
MORAVEC. J.; CAMPOS, Z..
Different frog-bromeliad associations are frequently reported from various habitats of Central and South America. Here, we present the first data on the association of two hylid species (Dendropsophus nanus and Scinax nasicus) with the bromeliad Bromelia balansae in the Brazilian Pantanal. Both treefrog species use rosettes of B. balansae as a diurnal shelter and foraging ground.
Tipo: Artigo de periódico Palavras-chave: ; Habitat; Pantanal; Frogs; Habitat preferences.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/858720
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Contexto espacial. Repositório Alice
SILVA, M. D.; WINCKLER, L. T..
Tipo: Parte de livro Palavras-chave: Paisagem; Zona de amortecimento; Pontal da Barra; Pelotas; Biodiversidade; Habitat.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1120919
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Habitat use, fruit consumption, and population density of the black-headed night monkey, Aotus nigriceps, in southeastern Peru Acta Amazonica
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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Ocorrência e distribuição de pteridófitas na reserva florestal Walter Egler, Amazônia Central, Brasil Acta Amazonica
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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Environmental structure affects taxonomic diversity but not functional structure of understory birds in the southwestern Brazilian Amazon Acta Amazonica
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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Quinolizidine alkaloids in Calia secundiflora (FABACEAE) Agrociencia
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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Testing arbitrary classes of light in a physiognomically heterogeneous area of "campo rupestre" vegetation Anais da ABC (AABC)
MOREIRA,ANA S.F.P.; BORBA,EDUARDO L.; LEMOS-FILHO,JOSE P..
The Brazilian "campo rupestre" vegetation shows high light heterogeneity, characteristic which is often disregarded in ecophysiological studies due the difficult of obtaining accurate measurements in a complex environment. The aim of the present study it was to describe how much heterogeneous is the light distribution in this environment, as well as tried to define classes in relation to the photosynthetically active radiation (PAR) for 30 rupicolous individuals of Bulbophyllum involutum. The individuals were marked and previously classified in light classes visually predetermined ("full sun", "partially shaded" and "shaded"). Once defined these classes, principal component analysis, cluster and dispersal analyses using direct and indirect PAR measures...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bulbophyllum involutum; Habitat; Light heterogeneity; Multivariate analysis; Orchidaceae; Rocky outcrops.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200635
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Use of intertidal areas by shrimps (Decapoda) in a brazilian Amazon estuary Anais da ABC (AABC)
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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Composition of functional ecological guilds of the fish fauna of the internal sector of the Amazon Estuary, Pará, Brazil Anais da ABC (AABC)
MOURÃO,KEILA R.M.; FERREIRA,VALDIMERE; LUCENA-FRÉDOU,FLÁVIA.
The present study describes the spatial and temporal structure of the estuarine fish community in the internal sector of the Amazon Estuary. Samples were obtained in the main channels and tidal creeks of Guajará and Marajó Bays and Guamá River. A total of 41,516 fish specimens were collected, representing 136 taxa, 38 families and 12 orders. In the dry season, the mean salinity of the main channel increased along a limnic-marine gradient, between the Guamá River and the Marajó Bay. Species richness was lowest in the mouth of the Guamá River and in the right margin of the Guajará Bay. Fish species composition and environmental guilds differed markedly among areas: Migrants and Freshwater Stragglers were dominant in the Guamá River and the Guajará Bay, while...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Estuaries; Fish diversity; Functional ecology; Habitat; Salinity gradients.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401783
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Electroretinography in eight species of neotropical deer Arq. Bras. Med. Vet. Zootec.
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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O primeiro registro de Sinningia gigantifolia Chautems (Gesneriaceae) no estado de São Paulo Biota Neotropica
Arzolla,Frederico Alexandre Roccia Dal Pozzo; Paula,Gláucia Cortez Ramos de; Chautems,Alain Philippe; Shepherd,George John.
Sinningia gigantifolia Chautems é uma espécie rupícola restrita à Serra da Mantiqueira e partes altas da Serra do Mar, que ocorre principalmente em formações florestais. O presente trabalho apresenta o primeiro registro desta espécie para o Estado de São Paulo, na Serra do Baú, em São Bento do Sapucaí. Uma descrição completa da espécie, uma análise da sua distribuição e uma alteração na chave de identificação do gênero Sinningia da Flora Fanerogâmica do Estado de São Paulo são fornecidas.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flora do Estado de São Paulo; Serra da Mantiqueira; Serra do Baú; Espécie rupícola; Habitat; Chave de identificação.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300040
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Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil Biota Neotropica
Costa,Ronan Caldeira; Facure,Kátia Gomes; Giaretta,Ariovaldo Antonio.
Epipedobates flavopictus is a diurnal, aposematic dendrobatid with a wide distribution in seasonal wet tropical regions of Brazil. We describe the daily period of vocalization, advertisement call, courtship behavior, and tadpole of E. flavopictus from a previously unknown population in southern Goiás and compare theses features with that of other populations. Studies were carried out in November (2004) and February (2005). We counted the number of calling males and duration of calling bouts in the morning and evening periods. The advertisement call was recorded with a digital recorder. Tadpole description was based on specimens collected in pools. Males called from well-illuminated sites such as rocky fields, rain channels, and borders of riverine forests....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Populational variation; Brazilian Cerrado; Habitat; Pattern of activity; Behavior; Reproduction; Advertisement call.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100006
Registros recuperados: 145
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