Results 31 to 40 of about 4,578 (167)

Establishing the relative importance of sympatric definitive hosts in the transmission of the sealworm, Pseudoterranova decipiens: a host-community approach

NAMMCO Scientific Publications, 2001
The importance of a given host to a particular parasite can be determined according to three different criteria: host preference, host physiological suitability and host contribution to transmission. Most studies on the sealworm Pseudoterranova decipiens
F Javier Aznar, Juan A Balbuena, Mercedes Fernández, J Antonio Raga   +3 more
doaj   +1 more source

Health, disease, mortality and survival in wild and rehabilitated harbor seals (Phoca vitulina) in San Francisco Bay and along the central California coast [PDF]

, 2011
Conventional methods for health assessment of wild-caught and stranded seals were used to describe the disease status of harbor seals in California. Clinical chemistry, infectious disease prevalence, immune function, and contaminant data were collected ...
Greig, Denise J.
core   +2 more sources

Intraspecific and temporal variability in the diet composition of female polar bears in a seasonal sea ice regime

Arctic Science, 2017
Predator foraging behaviour is influenced by a suite of intrinsic and extrinsic factors, including energetic requirements, resource availability, and habitat conditions.
Luana Sciullo, Gregory W. Thiemann, Nicholas J. Lunn, Steven H. Ferguson   +3 more
doaj   +1 more source

Foraging strategies in grey seals (Halichoerus grypus) : foraging effort and prey selection [PDF]

, 2009
Swimming speeds and prey selection of temporally captive, wild grey seals (Halichoerus grypus) were investigated in relation to prey characteristics in an experimental set-up at the Sea Mammal Research Unit (St Andrews, UK).
Gallon, Susan Louise
core   +2 more sources

EFFECT OF TEMPERATURE AND PARTICLE SIZE ON THE ALKALINE EXTRACTION OF PROTEIN FROM CHICKEN BONE WASTE [PDF]

, 2010
Chicken bone is a waste of chicken meat processing industry and restaurants that has not been used widely, even though it contains valuable organic compounds that are functionals, such as collagenous and non collagenous protein.
Retnowati, Diah Susetyo, Diah Susetyo Retnowati, Nurul Aini, Andri Cahyo Kumoro, Sofiah, Sofiah, Budiyati, Catarina Sri, Aini, Nurul, Kumoro, Andri Cahyo, Sofiah Sofiah, Catarina Sri Budiyati   +9 more
core   +2 more sources

Shape of Aquatic Animals and Their Swimming Efficiency

Journal of Marine Sciences, Volume 2014, Issue 1, 2014., 2014
The best swimmers have a streamlined shape that ensures an attached flow pattern and a laminar boundary layer at rather large values of the Reynolds number. Simple expressions may be obtained for the volumetric drag coefficient of an ideal body of revolution under laminar unseparated flow conditions together with estimations of a critical value of the ...
I. Nesteruk, G. Passoni, A. Redaelli, Jakov Dulčić   +3 more
wiley   +1 more source

Ecological and economic consequences of introductions of exotic wildlife (birds and mammals) in Germany

Wildlife Biology, Volume 2, Issue 3, Page 205-211, September 1996., 1996
This paper describes the ecological and economic consequences of introduced bird and mammal species for fauna, flora and habitats, for forestry and agriculture and also for other parts of the land developed and cultivated by man. The results presented are based on enquiries to various institutions for the environment, nature conservation, agriculture ...
Harald Gebhardt
wiley   +1 more source

Phocid seal leptin: tertiary structure and hydrophobic receptor binding site preservation during distinct leptin gene evolution [PDF]

, 2012
The cytokine hormone leptin is a key signalling molecule in many pathways that control physiological functions. Although leptin demonstrates structural conservation in mammals, there is evidence of positive selection in primates, lagomorphs and ...
John A. Hammond (170370), Hall, Ailsa Jane, Chris Hauton, Hammond John A., Hammond, John Anthony, Hammond, John A., Ailsa J. Hall (29488), Hall Ailsa J., John A Hammond, Hauton Chris, Bennett, Kimberley A., Hall, Ailsa J., Ailsa J Hall, Kimberley A Bennett, Chris Hauton (170376), Bennett Kimberley A., Hauton, Chris, Kimberley A. Bennett (170381)   +17 more
core   +2 more sources

Gastroliths in the harp seal Phoca Groenlandica

Polar Research, 1995
An adult harp seal, caught by accident in a gill net during the peak of the seal invasions along the northern coasts of Norway (1986/87), was found to have eaten 2.466 kg of stones with masses up to 265 g. Different theories to why harp seals on occasion deliberately eat stones, with particular emphasis on the hypothesis that these may aid in the ...
openaire   +1 more source

Spatial variation in foraging behaviour of a marine top predator (Phoca vitulina) determined by a large-scale satellite tagging program [PDF]

, 2012
The work was supported by the United Kingdom Department of Trade and industry, now the Department of Energy and Climate Change (http://www. decc.gov.uk/) through its Strategic Environmental Assessment programme (http://www.offshore-sea. .uk). The funders
Toby A Patterson, Simon E Moss, Sharples Ruth J., Hammond Philip S., Moss Simon E., Simon E. Moss (163100), Patterson Toby A., Patterson, Toby A, Ruth J. Sharples (163097), Sharples, Ruth Jemma, Philip S. Hammond (163103), Moss, Simon, Ruth J Sharples, Toby A. Patterson (142795), Hammond, Philip Steven, Philip S Hammond   +15 more
core   +2 more sources