Consulta: subjectFacets:"Activity pattern"
Registros recuperados: 4
Data/hora: 09/06/2024 14:40:12

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks
Provedor de dados: 5
Autores: Kadar, Julianna; Ladds, Monique; Mourier, Johann; Day, Joanna; Brown, Culum.
Distinguishing the factors that influence activity within a species advances understanding of their behavior and ecology. Continuous observation in the marine environment is not feasible but biotelemetry devices provide an opportunity for detailed analysis of movements and activity patterns. This study investigated the detail that calibration of accelerometers measuring root mean square (RMS) acceleration with video footage can add to understanding the activity patterns of male and female Port Jackson sharks (Heterodontus portusjacksoni) in a captive environment. Linear regression was used to relate RMS acceleration output to time‐matched behavior captured on video to quantify diel activity patterns. To validate captive data, diel patterns from captive...
Tipo: Text
Palavras-chave: Accelerometer; Activity pattern; Diel cycle; Migratory restlessness; Port Jackson shark; Root mean square acceleration.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00508/61990/66104.pdf

Did the animal move? A cross-wavelet approach to geolocation data reveals year-round whereabouts of a resident seabird
Provedor de dados: 5
Autores: Roy, Amedee; Delord, Karine; Tavares Nunes, Guilherme; Barbraud, Christophe; Bugoni, Leandro; Bertrand, Sophie.
Background Considerable progress in our understanding of long-distance migration has been achieved thanks to the use of small lightweight geolocator devices. Such global location sensors (GLS) are particularly suitable for studying non-breeding movement and behaviour due to their small size and low energy consumption allowing multiyear deployment. Errors of geolocation are however important, difficult to estimate, have a complex structure leading to poor precision and accuracy. Therefore, understanding movement ecology of short-distance migrants or resident birds during extensive time periods remains challenging. We aimed at elucidating the sex-specific marine space uses of a resident tropical seabird, the masked booby over the full annual life cycle,...
Tipo: Text
Palavras-chave: Activity pattern; Breeding constraints; GLS; Masked boobies; Saltwater immersion; Sexual dimorphism; Sula dactylatra.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00682/79438/82044.pdf

Abundance changes and activity flexibility of the oncilla, Leopardus tigrinus (Carnivora: Felidae), appear to reflect avoidance of conflict
Provedor de dados: 103
Autores: Oliveira-Santos,Luiz Gustavo R.; Graipel,Maurício E.; Tortato,Marcos A.; Zucco,Carlos A.; Cáceres,Nilton C.; Goulart,Fernando V. B.
We investigated the density and activity of the oncilla, Leopardus tigrinus (Schreber, 1775), a threatened small cat, in the Brazilian Atlantic Forest, using camera-trap data. We described differences in the activity of individuals occurring alone or in sympatry with larger cats. Oncilla presented low densities (7-13 ind./100 km²) and high flexibility in its activity. The oncillas were primarily nocturnal in the absence of other larger cat species - margay, ocelot and puma - but became more diurnal, with a cathemeral activity pattern, when the other cats were present. Oncilla is likely to be in a subordinate position in interactions with larger cats and changes its activity to decrease the chances for interspecific encounters. In this study, however, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activity pattern; Camera trap; Intraguild competition; Little spotted cat; Neotropical felid guild.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200003

Seasonal, daily activity, and habitat use by three sympatric pit vipers (Serpentes, Viperidae) from southern Brazil
Provedor de dados: 42
Autores: ROCHA,MARCELO C.; HARTMANN,PAULO A.; WINCK,GISELE R.; CECHIN,SONIA Z.
Viperid snakes are widely distributed in the South America and the greater distribution range of the family is found at the Crotalinae subfamily. Despite the abundance of this snakes along their geographic distribution, some ecological aspects remain unknown, principally at subtropical areas. In the present study, we evaluated the activity (daily and seasonal) and the use of the habitat by Bothrops diporus, B. jararaca andB. jararacussu, in an Atlantic Forest area at southern Brazil. We observed higher incidence of viperid snakes during the months with higher temperatures, while no snakes were found during the months with lower temperatures. The data suggest the minimum temperature as environmental variable with the greatest influence on the seasonal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parque Estadual do Turvo; Rio Grande do Sul; Atlantic Forest; Bothrops; Activity pattern.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200695