Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Boris M. Culik"'
Publikováno v:
Ibis. 140:113-119
A total of 8772 dive durations were recorded during 117 diving bouts in five Cormorants Phalacrocorax carbo and five Shags Phalacrocorax aristotelis breeding at the Chausey Islands, France. Diet of the birds was assessed by analysis of 526 pellets co
Publikováno v:
Marine Ecology Progress Series. 313:285-294
Field tests suggest that high-density nets can reduce harbor porpoise Phocoena pho- coena by-catch in demersal gillnet fisheries. However, it is not clear whether acoustic reflectivity or twine stiffness are responsible for this. We conducted sonar t
Autor:
Boris M. Culik, J. C. Hennicke
Publikováno v:
Marine Ecology Progress Series. 296:173-181
During the austral summer 1998/1999, we compared foraging ecology and reproduction between chick-rearing Humboldt penguins Spheniscus humboldti at 2 colonies in Chile. At Pan de Azucar in northern Chile prey availability was assumed to be lower than
Publikováno v:
Marine Biology. 134:601-607
The aim of our investigations was to determine, via oxygen and carbon-dioxide respirometry, how much energy dolphins (Tursiops truncatus) require when swimming at different speeds. Experiments were conducted on two female bottlenose dolphins (mean ma
Autor:
A. Radl, Boris M. Culik
Publikováno v:
Marine Biology. 133:381-393
During the breeding season 1996/97 we compared the foraging and diving behaviour of adult Magellanic penguins (Spheniscus magellanicus), growth rates of their chicks and their breeding success at two colonies in the south of Chile. One of the colonie
Autor:
Jean-Benoît Charrassin, Klemens Pütz, Boris M. Culik, D. Adelung, Thierry Raclot, J. Lage, Mandy A. M. Kierspel, Rory P. Wilson, Y. Le Maho
Publikováno v:
Ecology, 79 (6). pp. 1905-1921.
Scopus-Elsevier
Scopus-Elsevier
The foraging ecology of King Penguins (Aptenodytes patagonicus) at Possession Island, Crozet Archipelago, was studied between January and March 1993 and between February and March 1994. Diving activity and position of the birds were determined via ex
Publikováno v:
Polar Biology. 19:407-413
The movements of gentoo penguins (Pygoscelis papua) in Antarctica were studied by equipping a total of 37 birds captured at Ardley Island, South Shetlands between December 1991 and May 1996 with position-determining devices. Information on area usage
Publikováno v:
Polar Record. 34:107-112
A single chinstrap penguin (Pygoscelis antarctica), which had moulted at the South Shetland Islands, was subsequently tracked during 120 days at sea in the austral winter using a global location system (geolocation) based on light intensity. The bird
Autor:
P. Pfeiffer, Boris M. Culik
Publikováno v:
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 168:143-148
We used a still-water swim channel in conjunction with open-flow oxygen and carbon dioxide respirometry to examine the energy requirements of river-otters (Lutra lutra L.) swimming voluntarily underwater in Neumünster Zoo (Germany). While at rest on
Autor:
Boris M. Culik, Dirk Allers
Publikováno v:
Physiological Zoology. 70:456-463
Energy requirements of beavers (Castor canadensis) swimming voluntarily underwater were investigated in Neumunster Zoo (Germany) in a covered, still‐water swim channel with oxygen and carbon dioxide respirometry. During the experiments, all activit