Results 51 to 60 of about 13,758 (263)

Depredación en la tortuga carey Eretmochelys imbricata por el Jaguar Panthera onca en la costa del Pacífico de Costa Rica

open access: yesMammalogy Notes, 2016
In the sea, the most common predators of adult sea turtles are sharks (i.e., Carcharhinus leucas, Carcharodon carcharias, Galeocerdo cuvier) (Witzell 1987, Cliff & Dudley 1991, Fergusson et al. 2000) and killer whales (Orcinus orca) (Fertl & Fulling 2007)
Hansel Herrera   +2 more
doaj   +1 more source

Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet [PDF]

open access: yes, 2000
Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements.
Becker, Paul R.   +9 more
core  

How sharks and shark - human interactions are reported in major Australian newspapers [PDF]

open access: yes, 2020
Few phrases evoke more negative emotion, or generate more media coverage, than ‘shark attack’ despite the few deaths that have been attributed to shark bite. Typically, tabloids are considered to provide more sensational coverage than broadsheets.
Burgin, Shelley   +2 more
core   +2 more sources

Collaborative strategies for wildlife health: case studies from the Canadian North

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
The integration of Indigenous perspectives with a One Health approach enables culturally relevant and sustainable zoonotic disease management and surveillance, as demonstrated through 4 case studies that highlight how empowering communities and facilitating inclusive, respectful, and collaborative governance across diverse sectors and knowledge systems
Cody J. Malone   +8 more
wiley   +1 more source

Long-term changes in species composition and relative abundances of sharks at a provisioning site. [PDF]

open access: yesPLoS ONE, 2014
Diving with sharks, often in combination with food baiting/provisioning, has become an important product of today's recreational dive industry. Whereas the effects baiting/provisioning has on the behaviour and abundance of individual shark species are ...
Juerg M Brunnschweiler   +2 more
doaj   +1 more source

Ontogenetic Patterns of Elemental Tracers in the Vertebrae Cartilage of Coastal and Oceanic Sharks

open access: yesFrontiers in Marine Science, 2021
As predators, coastal and oceanic sharks play critical roles in shaping ecosystem structure and function, but most shark species are highly susceptible to population declines.
Mariah C. Livernois   +7 more
doaj   +1 more source

Abundance of Belugas, Delphinapterus leucas, in Cook Inlet, Alaska, 1994–2000 [PDF]

open access: yes, 2000
Annual abundance estimates of belugas, Delphinapterus leucas, in Cook Inlet were calculated from counts made by aerial observers and aerial video recordings.
DeMaster, Douglas P.   +2 more
core  

Transitions of social-ecological subsistence systems in the Arctic [PDF]

open access: yes, 2017
Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A.   +3 more
core   +4 more sources

Polar bear attack on a juvenile narwhal

open access: yesFauna Norvegica, 1990
A juvenile female narwhal Monodon monoceros landed at Pond Inlet had several sets of scratches on the posterior part of the body. They were probably made by a polar bear Ursus maritimus in the course of an unsuccessful attack.
Michael C.S. Kingsley
doaj   +1 more source

Talking About the Weather: The Feasibility of Using Very High‐Resolution Optical Satellite Imagery to Monitor Live and Stranded Cetaceans Around the UK and UK Overseas Territories

open access: yesMarine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Monitoring live and stranded cetaceans can be expensive and logistically challenging, resulting in knowledge gaps. Very high‐resolution (VHR) optical satellites are considered a potential solution to addressing some of these gaps. Despite success at detecting live and stranded cetaceans, satellites have only been trialed on restricted ...
Penny J. Clarke   +8 more
wiley   +1 more source

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