Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 18
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
On cognitive ecology and the environmental factors that promote Alzheimer disease: lessons from Octodon degus (Rodentia: Octodontidae) Biol. Res.
Rivera,Daniela S.; Inestrosa,Nibaldo C.; Bozinovic,Francisco.
Cognitive ecologist posits that the more efficiently an animal uses information from the biotic and abiotic environment, the more adaptive are its cognitive abilities. Nevertheless, this approach does not test for natural neurodegenerative processes under field or experimental conditions, which may recover animals information processing and decision making and may explain, mechanistically, maladaptive behaviors. Here, we call for integrative approaches to explain the relationship between ultimate and proximate mechanisms behind social behavior. We highlight the importance of using the endemic caviomorph rodent Octodon degus as a valuable natural model for mechanistic studies of social behavior and to explain how physical environments can shape social...
Tipo: Journal article Palavras-chave: Cognitive ecology; Octodon degus; Social behavior; Stress; Aging; Alzheimer's disease.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100010
Imagem não selecionada

Imprime registro no formato completo
Long-term social recognition memory in adult male rats: factor analysis of the social and non-social behaviors BJMBR
Moura,P.J.; Meirelles,S.T.; Xavier,G.F..
A modified version of the intruder-resident paradigm was used to investigate if social recognition memory lasts at least 24 h. One hundred and forty-six adult male Wistar rats were used. Independent groups of rats were exposed to an intruder for 0.083, 0.5, 2, 24, or 168 h and tested 24 h after the first encounter with the familiar or a different conspecific. Factor analysis was employed to identify associations between behaviors and treatments. Resident rats exhibited a 24-h social recognition memory, as indicated by a 3- to 5-fold decrease in social behaviors in the second encounter with the same conspecific compared to those observed for a different conspecific, when the duration of the first encounter was 2 h or longer. It was possible to distinguish...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agonistic behavior; Long-term social recognition memory; Non-social behavior; Principal component analysis; Social behavior; Social investigation.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000700009
Imagem não selecionada

Imprime registro no formato completo
On the relationships between ultrasonic calling and anxiety-related behavior in rats BJMBR
Schwarting,R.K.W.; Wöhr,M..
In the present review, the phenomenon of ultrasonic vocalization in rats will be outlined, including the three classes of vocalizations, namely 40-kHz calls of pups, and 22- and 50-kHz calls of juvenile and adult rats, their general relevance to behavioral neuroscience, and their special relevance to research on anxiety, fear, and defense mechanisms. Here, the emphasis will be placed on 40- and 22-kHz calls, since they are typical for various situations with aversive properties. Among other topics, we will discuss whether such behavioral signals can index a certain affective state, and how these signals can be used in social neuroscience, especially with respect to communication. Furthermore, we will address the phenomenon of inter-individual variability...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ultrasonic vocalization; Anxiety; Fear; Communication; Social behavior.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000400008
Imagem não selecionada

Imprime registro no formato completo
Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy Gayana
Vidal Maldonado,Marcela. A.
Most animal groups have sexual dimorphism in morphological characters, especially body size. In many cases, sexual dimorphism may be a consequence of a hierarchical social organization within populations. However, polygyny or monogamy may evolve independently of sexual dimorphism. Two Liolaemus species are known to be good model species to study the relationship between sexual dimorphism and sexual social system: Liolaemus tenuis (polygyny) and Liolaemus copiapoensis (monogamy). In this study, I evaluate the morphological variation in the geometric shape of the orbit between sexes in the two species, comparing their social condition (polygyny, monogamy) and applying a geometric morphometrical methodology. The results show morphological differentiation in...
Tipo: Journal article Palavras-chave: Geometric morphometrics; Liolaemus copiapoensis; Liolaemus tenuis; Social behavior.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382011000200004
Imagem não selecionada

Imprime registro no formato completo
Effect of bird density on the decision to join a group in the Sicalis flaveola pelzeni (Passeriformes, Emberizidae) Iheringia, Sér. Zool.
Lombardi,Celia M.; Charbuki,Marcela.
A change in bird density within a captive flock of Sicalis flaveola pelzeni (Sclater, 1872) affected the decision to join a group. Ruling out inter-individual differences and maintaining constant the size of a food patch, birds were found to fly more often to the food source and spend a longer time in its environs when kept in greater groups.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sicalis; Social behavior; Bird density.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000100011
Imagem não selecionada

Imprime registro no formato completo
Atividades terrestres dos jacarés no Pantanal, Brasil. Infoteca-e
CAMPOS, Z. M. da S.; COUTINHO, M. E.; MAGNUSSON, W..
O movimento terrestre coordenado não tem sido previamente reportado em crocodilianos. Entretanto, entre 1989 e 1999, 94% dos 525 Caiman crocodilus yacare descobertos na terra no Pantanal estavam coordenados em grupos (N = 73) andando um atras do outro, em linhas quase retas. Os jacarés saíram das poças e iniciaram movimentos terrestres espontaneamente, ou em resposta as perturbações por pesquisadores e caçadores. A razão sexual dos grupos foi tendenciosa para machos (0,8 ± 0,24), e foi semelhante daquela encontrada em ambientes aquáticos na área de estudo. No entanto, dois grupos consistiram apenas de fêmeas. Quando os jacarés saíram das poças sujeitas a perturbações, como caça clandestina e captura para pesquisa, eles andaram em linhas um atrás do outro e...
Tipo: Folhetos Palavras-chave: Comportamento social; Movimento em grupo; Estivação; Caiman crocodilus yacare; Group movement; Ecologia; Jacaré; Pantanal; Estivation; Ecology; Social behavior.
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790022
Imagem não selecionada

Imprime registro no formato completo
The shy prefer familiar congeners ArchiMer
Benhaim, David; Ferrari, Sebastien; Chatain, Beatrice; Begout, Marie-laure.
The shy–bold continuum is both a fundamental aspect of human behavior and a relatively stable behavioral trait for many other species. Here we assessed whether shy individuals prefer familiar congeners, taking the European sea bass, a recently domesticated fish showing similar behavioral responses to wild fish, as a model to better understand the inter-individual variability in social behavior previously observed in this species. In the wild, the link between familiarity i.e. the preference of fish for familiar congeners and boldness could be part of the mechanism underlying shoaling formation in fish. Thirty fish were individually tested in a device designed to assess the preference for a familiar vs. an unfamiliar congener on the basis of visual cues...
Tipo: Text Palavras-chave: Familiarity; Personality; Open field; Social behavior; Swimming activity; Shyness; Shoaling behavior; Visual cue.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00319/43049/42554.pdf
Imagem não selecionada

Imprime registro no formato completo
Seasonal variation in foraging group size of crab-eating foxes and hoary foxes in the Cerrado Biome, Central Brazil Mastozool. neotrop.
Lemos,Frederico Gemesio; Facure,Kátia Gomes.
In regions with a pronounced dry season, such as the Cerrado Biome (Brazilian savannah), climate seasonality may affect food availability for canid species and, consequently, their foraging behavior. We investigated seasonal variation in foraging group size of crab-eating foxes (Cerdocyon thous) and hoary foxes (Lycalopex vetulus) in the Cerrado region for three consecutive years. Data were obtained by direct observations of foraging foxes during spotlight surveys. Both species were sighted foraging individually or in pairs with or without their juvenile offspring. However, crab-eating foxes foraged in pairs more frequently in the wet season and individually more frequently in the dry season whereas hoary foxes foraged mostly individually throughout the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crab-eating fox; Direct counts; Hoary fox; Reproduction; Social behavior.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832011000200006
Imagem não selecionada

Imprime registro no formato completo
Unusual effect of chemical communication on social aggression in juvenile cichlid fish Cichlasoma paranaense (Cichliformes: Cichlidae) Neotropical Ichthyology
Gauy,Ana Carolina dos Santos; Bolognesi,Marcela Cesar; Gonçalves-de-Freitas,Eliane.
ABSTRACT Some fish species are socially organized and show a social rank order which is achieved through aggressive interactions. After hierarchy is settled, such species communicate their ranks through several sensorial cues; this communication is adaptive because it reduces detrimental effects from physical contests. Cichlid fish are socially organized and signal their social ranks through visual, acoustic and chemical communication. The response to signaling may vary according to the species and environment; the knowledge of different species is fundamental to understand the evolutionary forces upon their social communication. We tested the effect of chemical signaling on social groups of juvenile cichlid Cichlasoma paranaense by renewing the water in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agonistic behavior; Social behavior; Social environment; Social signals; Water renewal.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200208
Imagem não selecionada

Imprime registro no formato completo
A comparative study of the ovaries in some Brazilian bees (Hymenoptera; Apoidea) Pap. Avulsos de Zool. (São Paulo)
Martins,Gustavo Ferreira; Serrão,José Eduardo.
The present paper concerns the morphological features of ovaries in 33 species of bees with different social behavior patterns. The ovaries of bees were examined under light microscope. They are polytrophic-meroistic ovaries formed for an anterior germarium and a basal vitellarium. The germarium houses the germ cells and in the vitellarium there are follicles arranged linearly. In general the follicle is constituted by a nutritive chamber (a cluster of nurse cells) and an oocyte chamber, both covered by a single epithelial layer of follicular cells. The number of ovarioles per ovary and the number of mature oocyte per ovary were analyzed. Measurements of ovariole length, oocyte size, oocyte width, follicular epithelial height and the intertegular distance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insect morphology; Ovary; Reproductive tract; Social behavior.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492004000300001
Imagem não selecionada

Imprime registro no formato completo
Notes on the nest of the social wasp Pseudopolybia langi (Hym., Vespidae, Polistinae) Rev. Bras. entomol.
Felizardo,Sherlem Patricia de Seixas; Santos,Ian Patrick Vilhena dos; Silveira,Orlando Tobias.
Abstract Detailed descriptions of the architecture of Pseudopolybia langi nests are presented for the first time. Structural variations in the arrangements of nest parts are described and compared with features observed in other species of Pseudopolybia and other epiponine genera.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nest architecture; Social behavior; Epiponini; Neotropical; Amazonia.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000200090
Imagem não selecionada

Imprime registro no formato completo
What do humpback whales Megaptera novaeangliae (Cetartiodactyla: Balaenopteridae) pairs do after tagging? Rev. Bras. Zool.
Andriolo,Artur; Zerbini,Alexandre N.; Moreira,Sergio; Pizzorno,José L.; Danilewicz,Daniel; Maia,Ygor G.; Mamede,Natália; Castro,Franciele R. de; Clapham,Phillip.
The social structure of humpback whales in their tropical wintering grounds is very fluid. To date, no information has been published for cases in which two whales were both satellite-tagged while in association. Here, we report the movements of four humpback whale pairs tagged together off the coast of Brazil. Fieldwork and satellite tagging of humpback whales was conducted between 2003 and 2008 along the eastern coast of Brazil, between 20°S and 8°S. Movement was monitored while whales were still in their breeding ground. A switching state space model was applied to the filtered data of each humpback whale to standardize telemetry data and allow direct comparison of each individual track. GIS was used to plot model-predicted locations and to visually...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cetacean; Large whale; Satellite telemetry; Social behavior; SSSM.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200001
Imagem não selecionada

Imprime registro no formato completo
Foraging behavior of Brazilian cormorant, Nannopterum brasilianus (Suliformes: Phalacrocoracidae) Rev. Bras. Zool.
Gheler-Costa,Carla; Comin,Fábio Henrique; Gilli,Letícia C.; Verdade,Luciano M..
ABSTRACT Although the concept of optimal foraging has been extensively discussed, foraging efficiency is difficult to assess in vertebrates. In this study, we determined the foraging efficiency of the Brazilian cormorant, Nannopterum brasilianus Gmelin, 1789, by the direct, ad libitum observation of a group of four to thirteen individuals in an artificial pond at the University of São Paulo, Piracicaba, state of São Paulo, southeastern Brazil. Although this study was carried out in a highly anthropic environment, we can still conclude that the Brazilian cormorant is a relatively efficient browser and short-term diver. In anthropic environments, foraging success depends on the amount of time these birds spend diving, and stealing food is less common....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food biology; Food stealing; Foraging success; Social behavior; Wading birds.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100328
Imagem não selecionada

Imprime registro no formato completo
Coordinated feeding behavior of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in southeastern Brazil: a comparison between populations Rev. Bras. Zool.
Oliveira,Elaine C. da S.; Tardin,Rodrigo H.; Poletto,Fabiana R.; Simão,Sheila M..
The coordinated feeding tactics used by delphinids are influenced by differences in the distribution of prey species, season, and opportunities for social learning. In the present study, we compared the coordinated feeding behavior of two populations of the Guiana dolphin, Sotalia guianensis, in southeastern Brazil, and how these feeding tactics vary seasonality and in the presence of calves. We observed eight types of coordinated feeding tactics, which differed in frequency and in the mean number of individuals engaged in them, and between both areas. Feeding tactics used to herd and capture prey were the most frequent and engaged a greater number of individuals, suggesting that these tactics are better for capturing fish that gather in larger schools....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cetaceans; Coordinated hunt; Feeding tactics; Prey; Social behavior.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000600001
Imagem não selecionada

Imprime registro no formato completo
A new species of Goeldia (Araneae: Titanoecidae) with notes on its natural history Rev. Bras. Zool.
Almeida-Silva,Lina M.; Brescovit,Antonio D.; Dias,Sidclay Calaça.
A new species of Goeldia Keyserling, 1891 is described. Goeldia is the only genus of Titanoecidae with species in the Neotropical region and includes eight species diagnosed by the presence of a patellar process in the male palp. The new species, Goeldia zyngierae sp. nov., was found living inside the Casa de Pedra cave, Ribeira, Itabaiana, Sergipe, Brazil. Goeldia zyngierae sp. nov. is diagnosed by the tegular process with a small constriction near the base of the dorsal part and by a distal narrowing, more visible in the dorsal side of the patellar process of the male palp. The female epigynum shows a pair of sinuous depressions and a large mid field that does not close the copulatory openings as in Goeldia luteipes Keyserling, 1878. The vulva presents a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cave; Neotropical; Social behavior; Spider; Taxonomy.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200021
Imagem não selecionada

Imprime registro no formato completo
Different intervals of behavioral observation in the scanning method and the real behavior of pigs R. Bras. Zootec.
Oliveira,Geyssane Farias de; Caldara,Fabiana Ribeiro; Garcia,Rodrigo Garófallo; Seno,Leonardo de Oliveira; Marcon,Ádila Vasconcelos; Foppa,Luciana; Martins,Renata Aparecida; Crone,Carla.
ABSTRACT The objective of this work was to study the behavior of swine females in the grower phase using different observation intervals (continuous, 5, and 10 min). A total of 42 swine were used, 14 of them for each treatment, which were identified with a marker stick. These animals were observed using the focal sampling method for 5 h. The treatments were the observation intervals: continuous, every 5 min, and every 10 min. Among the behaviors analyzed during the experiment, the different observation intervals did not affect the estimated time spent in the activities. Time observation intervals of 10 min or less adequately describe the duration of the main behavioral parameters of female pigs in this setting.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ethology; Pig production; Social behavior.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100203
Imagem não selecionada

Imprime registro no formato completo
The first seven months of an infant of Alouatta guariba (Humboldt) (Primates, Atelidae): interactions and the development of behavioral patterns Zoologia
Miranda,João M. D.; Aguiar,Lucas M.; Ludwig,Gabriela; Moro-Rios,Rodrigo F.; Passos,Fernando C..
The development of the interactions of an infant primate with its mother and the other members of its social group plays a special role in the ethology and demography of the species, with consequences for their survive and their conservation. The objective of the present study is to investigate the development of an infant of Alouatta guariba (Humboldt, 1812) in the wild, its behavior and interactions during its first seven months of age, in a remnant of Araucaria Pine Forest in Paraná State, Brazil. Using the method of instantaneous scanning with 5 min intervals, a total of 46 hours and 15 minutes of direct observation (555 individual records) showed that the infant behavioral patterns during its first four months were characterized by high dependency,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Infancy; Ontogenetic development; Parental care; Social behavior.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400054
Imagem não selecionada

Imprime registro no formato completo
Notes on the lesser white-lined bat, Saccopteryx leptura (Schreber) (Chiroptera, Emballonuridae), from southeastern Brazil Zoologia
Nogueira,Marcelo R.; Peracchi,Adriano L.; Pol,André.
Saccopteryx leptura (Schreber, 1774) is reported from two new localities in southeastern Brazil, both in Atlantic forest remains in the state of Rio de Janeiro. Analysisof food material showed that individuals from both localities had preyedon insects in the order Hymenoptera. Cheek contents were available from one specimen, and in this case identification of the food item (flying ants) achieved generic level (Pheidole Westwood, 1841). Aspects in the social behavior observed in a colony suggest that the same traits documented in Central American populations (small colonies, monogamic mating system, and retention of young for up to a year in the parental unit) may also characterize this species in the southern most part of its range. In both external and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chiroptera; Emballonuridae; Saccopteryx leptura; Morphometrics; Feeding habits; Social behavior; Rio de Janeiro; Southeastern Brazil.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400017
Registros recuperados: 18
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional