Results 31 to 40 of about 45,005 (219)

Trawling and bottlenose dolphins' social structure [PDF]

Proceedings of the Royal Society of London. Series B: Biological Sciences, 2001
Human activities can affect the behaviour of mammals through the modification of habitats, changes in predation pressure or alterations in food distribution and availability. We analysed the association and ranging patterns of 242 individually identified bottlenose dolphins (Tursiops aduncus) in eastern Moreton Bay, Queensland, Australia, and ...
Chilvers, B. Louise, Corkeron, Peter J.
openaire   +3 more sources

Genetic divergence between two phenotypically distinct bottlenose dolphin ecotypes suggests separate evolutionary trajectories

Ecology and Evolution, 2017
Due to their worldwide distribution and occupancy of different types of environments, bottlenose dolphins display considerable morphological variation. Despite limited understanding about the taxonomic identity of such forms and connectivity among them ...
P. Fruet, E. Secchi, J. D. Di Tullio, P. C. Simões‐Lopes, F. Daura-Jorge, Ana P. B. Costa, E. Vermeulen, P. Flores, Rodrigo C Genoves, P. Laporta, L. Beheregaray, L. Möller   +11 more
semanticscholar   +1 more source

The diatoms test in veterinary medicine: a pilot study on cetaceans and sea turtles [PDF]

, 2018
Fishing activities are considered one of the most relevant threats for cetaceans and sea turtles con- servation since these animals are sometimes found dead entangled in fishing gears.
Barbieri, Stefania, Cozzi, Bruno, Frisoni, Paolo, Gaudio, Rosa Maria, Giorda, Federica, Grattarola, Carla, Mazzariol, Sandro, Mignone, Walter, Pautasso, Alessandra, Pedriali, Natascia, Rubini, Silva, Russotto, Chiara   +11 more
core   +1 more source

A common bottlenose dolphin (Tursiops truncatus) prey handling technique for marine catfish (Ariidae) in the northern Gulf of Mexico

PLoS ONE, 2017
Few accounts describe predator-prey interactions between common bottlenose dolphins (Tursiops truncatus Montagu 1821) and marine catfish (Ariopsis felis Linnaeus 1766, Bagre marinus Mitchill 1815).
Errol I. Ronje, K. Barry, C. Sinclair, Mark A. Grace, N. Barros, Jason B. Allen, B. Balmer, Anna Panike, Christina N. Toms, K. Mullin, R. Wells   +10 more
semanticscholar   +1 more source

Unihemispheric sleep deprivation in bottlenose dolphins [PDF]

Journal of Sleep Research, 1992
SUMMARY  Unihemispheric and bihemispheric sleep deprivation were performed in bottlenose dolphins. One brain hemisphere was capable of being deprived of delta (0.5‐3.0 Hz) sleep in the former condition. Here, an increase in sleep pressure was observed during sleep deprivation in the deprived hemisphere.
, Oleksenko, , Mukhametov, , Polyakova, , Supin, , Kovalzon   +4 more
openaire   +2 more sources

A first assessment of operator compliance and dolphin behavioural responses during swim-with-dolphin programs for three species of Delphinids in the Azores [PDF]

, 2019
The popularity of swim-with wild dolphin programs around the world is fast growing, with the studies required to investigate their impact lagging behind. In the Azores, species targeted include the short-beaked common (Delphinus delphis), the bottlenose (
Azevedo, José M. N., Cecchetti, Arianna, Gordon, Jonathan, Stockin, K. A.   +3 more
core  

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

Biological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen, Mohamed Khalil Meliane, Zachery B. Holmes, Karl E. Miller, William J. Barichivich, Emilie Dedeban, Alex Furst, Miranda Imeri, Peyton E. Niebanck, Samantha Nunn, Kailee Pearson, Nicole Rita, Brier Ryver, Dakotah Shaffer, Susan C. Walls, E. Hance Ellington   +15 more
wiley   +1 more source

Using salinity to identify common bottlenose dolphin habitat in Barataria Bay, Louisiana, USA

, 2017
Following the Deepwater Horizon (DWH) oil spill, numerous studies were conducted to determine impacts on common bottlenose dolphins Tursiops truncatus.
F. Hornsby, T. Mcdonald, B. Balmer, T. Speakman, K. Mullin, P. Rosel, R. Wells, Andrew C. Telander, P. Marcy, Kristen C. Klaphake, L. Schwacke   +10 more
semanticscholar   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

Do pingers cause stress in fish? An experimental tank study with European sardine, Sardina pilchardus (Walbaum, 1792) (Actinopterygii, Clupeidae), exposed to a 70 kHz dolphin pinger [PDF]

, 2014
Date of acceptance: 06/12/2014 Acknowledgments The study was funded by the Portuguese Ministry of Science (Fundac¸a˜o para a Cieˆncia e Tecnologia– FCT) through a PhD Grant of SG (SFRH/BD/47931/2008).
Begona Santos, M., Costas Costas, Damian, Goetz, Sabine, Gonzalez Villanueva, Antonio, Pierce, Graham John, Vingada, Jose   +5 more
core   +1 more source