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The correct use of the vernacular names for South American dolphins genus Sotalia Gray (Mammalia, Cetacea, Delphinidae)
Geise, Lena;
Revista Brasileira de Zoologia , 2006, DOI: 10.1590/S0101-81752006000400043
Abstract: the usage of the vernacular names for south american dolphins genus sotalia gray, 1866 is discussed in accordance to geographic characteristics of local people identification.
Karyotype composition of some rodents and marsupials from Chapada Diamantina (Bahia, Brasil)
Pereira, LG.;Geise, L.;
Brazilian Journal of Biology , 2007, DOI: 10.1590/S1519-69842007000300016
Abstract: the chapada diamantina (cd) is located in bahia state, between 11-14° s and 41-43° w, being part of the serra do espinha?o. the occurrence of different habitats and transition areas permits an interesting mammal fauna composition, with species from different biomes living in sympatry. species of didelphimorphia and rodentia are important members of mammal communities in almost all different habitats, and morphological and cytogenetic characters are important for a correct identification of most of these species. in this work 258 specimens of small mammals from the orders didelphimorphia (six genera and six species) and rodentia (two families, five sigmodontinae tribes, nine genera and 11 species) were collected during the whole field work (44 nights with traps). chromosome preparations were obtained from 145 specimens from the species: marmosops incanus, gracilinanus microtarsus, monodelphis domestica, akodon aff. cursor, necromys lasiurus, cerradomys sp., oligoryzomys fornesi, o. nigripes, o. rupestris, calomys expulsus, rhipidomys macrurus, wiedomys pyrrhorhinus and thrichomys inermis. didelphis albiventris, micoureus demerarae, thylamys karymii and nectomys sp. were identified by morphological characters. most analyzed specimens do not show karyotype variation. however, numerical chromosomic variation was found in two individuals of akodon aff. cursor (2n = 15) and in one individual of cerradomys sp. (2n = 51). structural variation in karyotype was observed in seven individuals of cerradomys sp., showing one additional pair of metacentric chromosomes.
Sobre a ocorrência de cetáceos no litoral do Estado do Rio de Janeiro entre 1968 e 1984
Geise, L.;Borobia, M.;
Revista Brasileira de Zoologia , 1987, DOI: 10.1590/S0101-81751987000400006
Abstract: in this paper some data are shown about cetaceans that occurred at the rio de janeiro coast from 1968 to 1984. the newspapers' archives were used, as well as personal observations. there are some new records and the greatest number of animais were seen during august.
Distribution extension and sympatric occurrence of Gracilinanus agilis and G. microtarsus (Didelphimorphia, Didelphidae), with cytogenetic notes
Geise, Lena;Astúa, Diego;
Biota Neotropica , 2009, DOI: 10.1590/S1676-06032009000400030
Abstract: gracilinanus microtarsus, from the atlantic forest and g. agilis, widespread in central brazil in the cerrado and in the northeastern caatinga are two small neotropical arboreal opossum species not frequently recorded in simpatry. here we report eight g. agilis specimens from three localities and 17 g. microtarsus, from 10 localities, all in minas gerais, rio de janeiro and bahia states. species proper identification followed diagnostic characters as appearance of dorsum pelage, ocular-mark, ears and tail lengths and size proportion of the posteromedial vacuities in cranium. chromosomes in metaphases of five specimens were obtained for both species. our records extend the previous known geographical distribution of g. microtarsus to chapada diamantina, in bahia state and report the occurrence of both species in simpatry. g. microtarsus, in coastal area, was captured in dense ombrophilous and in semideciduous forests, in deciduous seasonal forest and cerrad?o in chapada diamantina. g. agilis was recorded in gallery forests of cerrado and very green and dense bush formation of caatinga. autosomal complement showed the same diploid and autosomal number already described for both species (2n = 14, na = 24). measurements are according to those given in literature and pelage characteristics were useful for the correct species identification. here we report both g. agilis, described to be endemic to the cerrado/caatinga, in opposite to g. microtarsus, considered to be endemic to atlantic forest occurring in simpatry in two localities of the cerrado. such results indicates that long term trapping effort are necessary to a better definition of species taxonomy, distribution patterns along time and comprehensive understanding how anthropic environmental changes can be interfering in their evolutionary history.
Non-flying mammals of Chapada Diamantina (Bahia, Brazil)
Pereira, Luciana Guedes;Geise, Lena;
Biota Neotropica , 2009, DOI: 10.1590/S1676-06032009000300019
Abstract: chapada diamantina is located in central bahia state, and has a large diversity of habitats, including important transitional areas, but has remained largely unstudied until now. in the present study we list the non-flying mammals of chapada diamantina national park and surroundings. we captured only small non-volant mammals, medium and large mammals were assessed through indirect evidences (tracks and marks) and interviews. we recorded 58 species and 47 genera from seven mammalian orders. seven species are included in the list of endangered brazilian species by ibama and iucn; and other seven are classified as data-deficient. species richness of small mammals was equivalent among sampled habitats, but species composition varied among habitats (10 in semi-deciduous forest, 9 in rocky savanna and 8 in cerrado sensu stricto), as some species are restricted by humidity to forest habitats. during four different samplings, eight species were collected only in open vegetation, four only in forests, and six in both habitats. oligoryzomys rupestris and gracilinanus microtarsus had its geographic range expanded. faunal composition is similar to the one observed in the atlantic forest, including species from cerrado and caatinga. besides, some species occupy different habitats from those previously ascribed to them.
Rodents (Rodentia) and marsupials (Didelphimorphia) in the municipalities of Ilhéus and Pau Brasil, state of Bahia, Brazil.
Geise, L.,Pereira, L. G.
Check List , 2008,
Abstract: The present study provides a list of small mammals from the coastal south part of the state of Bahia. Live-traps were settled in Atlantic Forest fragments where cacao (Theobroma cacao) plantations are widespread. During a short-term inventory performed in February 2003, 13 specimens from eight species of small mammals were collected.
Behaviour, habitat use and population size of Sotalia fluviatilis (Gervais, 1853) (Cetacea, Delphinidae) in the Cananéia estuary region, S?o Paulo, Brazil
GEISE, L.;GOMES, N.;CERQUEIRA, R.;
Revista Brasileira de Biologia , 1999, DOI: 10.1590/S0034-71081999000200002
Abstract: from march 1987 to february 1988, sotalia fluviatilis population size was estimated and behavioral patterns were observed in the cananéia estuary region, in southeast brazil. field observations were carried out from shore (40, with a mean observation period of 7.76 ± 2.05 hours a day, completing a total of 310.5 hours) and during line transect surveys by boat (55, 10 of them with a mean observation period of 4.44 ± 0.15 hours each and 45 with a mean observation time of 20 minutes, in the totality 64.3 hours). dolphins occur in this region all year round, most commonly in small groups, with a greater number observed in january 1988, with no seasonal occurrence pattern. pairs accounted for ca. 30% and calves were seen year round, always accompanied by one or more adults. juveniles were slightly more common from july to february. more dolphins were seen from 9:00 a.m. to 10:00 a.m. (60.8%) until midday. from fourteen behavioral patterns identified, travelling (46.8%) and feeding (33.9%) were the most frequently observed. group size and composition differed in each behavioral pattern. diurnal migration was observed, related with hour and not to tide conditions. dolphins were seen throughout the estuary. for the whole survey area, population density () was 3.38 ± 1.76 individuals/km2, dolphin abundance was found to be 704.8± 367.7 along 10 line transect from april 1987 from, where 82 km were surveyed. in trapandé bay, the largest part of the studied area, equaled 12.4 ± 10.3 individuals/km2 in the morning and 16.4 ± 13.8 individuals/km2 in the afternoon.
Modifica??es vocais acústicas produzidas pelo som hiperagudo
Roman-Niehues, Geise;Cielo, Carla Aparecida;
Revista CEFAC , 2010, DOI: 10.1590/S1516-18462009005000059
Abstract: purpose: to describe acoustic vocal modifications that may occur after the vocal technique production of high-pitched sound in young adult women without voice complaints and with normal larynx. methods: 23 subjects participated in the study and signed the free and clarified consent, completed a questionnaire, the ear, nose and throat evaluation was performed with indirect laryngoscopy; stomatognathic system evaluation, and hearing screening. they produced the high-pitched sound in three series of fifteen repetitions, maximum time speech with intervals of 30-second rest between each series. vocal acoustic analysis was carried out using the multi-dimensional voice program model 5105, of kay pentax. results: in the vocal acoustic analysis, we was noted after the high-pitched sound, increasing measures of fundamental frequency and fundamental frequency perturbation, reduction measures of intensity perturbation, noise, voice breaks, voice irregularity and tremor. however, there was no statistical significance in any of the measures offered by the program. conclusion: in this group, the high-pitched sound showed no significant acoustic effects statistically significance on the voice signal.
Modifica es vocais acústicas produzidas pelo som hiperagudo Acoustic vocal modifications produced by high-pitched sound
Geise Roman-Niehues,Carla Aparecida Cielo
Revista CEFAC , 2010,
Abstract: OBJETIVO: descrever as modifica es vocais acústicas após a produ o da técnica vocal do som hiperagudo em mulheres adultas jovens, sem queixas vocais e com laringe normal. MéTODOS: participaram do estudo 23 sujeitos que assinaram o Termo de Consentimento Livre e Esclarecido, preencheram um questionário, realizaram avalia o otorrinolaringológica com laringoscopia indireta, exame dos órg os fonoarticulatórios e fun es estomatognáticas e triagem auditiva. Realizaram o som hiperagudo em três séries de 15 repeti es, em tempo máximo de fona o com intervalos de 30 segundos de repouso passivo entre cada série. A análise vocal acústica foi realizada através do Multi-Dimensional Voice Program, Modelo 5105, da Kay Pentax. RESULTADOS: na avalia o acústica vocal, após o som hiperagudo, constatou-se o aumento das medidas de frequência fundamental e das medidas de perturba o da frequência fundamental, diminui o das medidas de perturba o da intensidade, ruído, quebra de voz, irregularidade da voz e tremor, mas n o houve significancia estatística em todas as medidas oferecidas pelo programa. CONCLUS O: neste grupo, os sons hiperagudos n o produziram efeitos acústicos estatisticamente significantes sobre o sinal vocal. PURPOSE: to describe acoustic vocal modifications that may occur after the vocal technique production of high-pitched sound in young adult women without voice complaints and with normal larynx. METHODS: 23 subjects participated in the study and signed the Free and Clarified Consent, completed a questionnaire, the ear, nose and throat evaluation was performed with indirect laryngoscopy; stomatognathic system evaluation, and hearing screening. They produced the high-pitched sound in three series of fifteen repetitions, maximum time speech with intervals of 30-second rest between each series. Vocal acoustic analysis was carried out using the Multi-Dimensional Voice Program Model 5105, of Kay Pentax. RESULTS: in the vocal acoustic analysis, we was noted after the high-pitched sound, increasing measures of fundamental frequency and fundamental frequency perturbation, reduction measures of intensity perturbation, noise, voice breaks, voice irregularity and tremor. However, there was no statistical significance in any of the measures offered by the program. CONCLUSION: in this group, the high-pitched sound showed no significant acoustic effects statistically significance on the voice signal.
Behaviour, habitat use and population size of Sotalia fluviatilis (Gervais, 1853) (Cetacea, Delphinidae) in the Cananéia estuary region, S o Paulo, Brazil
GEISE L.,GOMES N.,CERQUEIRA R.
Revista Brasileira de Biologia , 1999,
Abstract: From March 1987 to February 1988, Sotalia fluviatilis population size was estimated and behavioral patterns were observed in the Cananéia estuary region, in Southeast Brazil. Field observations were carried out from shore (40, with a mean observation period of 7.76 ± 2.05 hours a day, completing a total of 310.5 hours) and during line transect surveys by boat (55, 10 of them with a mean observation period of 4.44 ± 0.15 hours each and 45 with a mean observation time of 20 minutes, in the totality 64.3 hours). Dolphins occur in this region all year round, most commonly in small groups, with a greater number observed in January 1988, with no seasonal occurrence pattern. Pairs accounted for ca. 30% and calves were seen year round, always accompanied by one or more adults. Juveniles were slightly more common from July to February. More dolphins were seen from 9:00 a.m. to 10:00 a.m. (60.8%) until midday. From fourteen behavioral patterns identified, travelling (46.8%) and feeding (33.9%) were the most frequently observed. Group size and composition differed in each behavioral pattern. Diurnal migration was observed, related with hour and not to tide conditions. Dolphins were seen throughout the estuary. For the whole survey area, population density () was 3.38 ± 1.76 individuals/km2, dolphin abundance was found to be 704.8± 367.7 along 10 line transect from April 1987 from, where 82 km were surveyed. In Trapandé Bay, the largest part of the studied area, equaled 12.4 ± 10.3 individuals/km2 in the morning and 16.4 ± 13.8 individuals/km2 in the afternoon.
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