Results 61 to 70 of about 12,763 (228)

Local disconnects in global discourses—The unintended consequences of marine mammal protection on small‐scale fishers

open access: yesConservation Letters, 2021
Global commitments prioritize protection of wildlife and improvements to human wellbeing. Local disconnects in these commitments are rarely acknowledged—or their implications assessed—preventing the development of effective solutions.
Katrina J. Davis   +9 more
doaj   +1 more source

Estimates of Marine Mammal, Sea Turtle, and Seabird Mortality in the California Drift Gillnet Fishery for Swordfish and Thresher Shark, 1996–2002 [PDF]

open access: yes, 2004
Estimates of incidental marine mammal, sea turtle, and seabird mortality in the California drift gillnet fishery for broadbill swordfish, Xiphias gladius, and common thresher shark, Alopias vulpinus, are summarized for the 7-year period, 1996 to 2002 ...
Caretta, James V.   +3 more
core  

Seasonal variations and challenges in estimating populations and identifying species of Korean ungulates using drone‐derived thermal orthomosaic maps

open access: yesWildlife Biology, EarlyView.
Drones equipped with thermal infrared (TIR) cameras offer significant time and labor savings in estimating wild ungulate populations. However, accurately monitoring forest‐dwelling ungulates remains challenging due to their elusive behavior and complex habitat.
Jinhwi Kim, Donggul Woo
wiley   +1 more source

Intrinsic and extrinsic factors drive ontogeny of early-life at-sea behaviour in a marine top predator [PDF]

open access: yes, 2017
Young animals must learn to forage effectively to survive the transition from parental provisioning to independent feeding. Rapid development of successful foraging strategies is particularly important for capital breeders that do not receive parental ...
Bennett, Kimberley A.   +6 more
core   +5 more sources

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

open access: yesIntegrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang   +5 more
wiley   +1 more source

Viral metagenomic survey of Caspian seals

open access: yesFrontiers in Veterinary Science
IntroductionViral diseases of pinnipeds cause substantial mortality and morbidity and can influence population demography. Viral metagenomic studies can therefore play an important role in pinniped health assessments and disease surveillance relevant to ...
Kobey Karamendin   +5 more
doaj   +1 more source

Coyote (Canis latrans) use of marine resources in coastal California: A new behavior relative to their recent ancestors [PDF]

open access: yes, 2018
Coyotes ( Canis latrans) are known to consume marine foods, but the importance and persistence of marine subsidies to coyotes is unknown. Recent access to a marine subsidy, especially if gained following apex predator loss, may facilitate coyote ...
Gifford-Gonzalez, Diane   +2 more
core  

Flow sensing by pinniped whiskers [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2011
Beside their haptic function, vibrissae of harbour seals (Phocidae) and California sea lions (Otariidae) both represent highly sensitive hydrodynamic receptor systems, although their vibrissal hair shafts differ considerably in structure. To quantify the sensory performance of both hair types, isolated single whiskers were used to measure vortex ...
L, Miersch   +8 more
openaire   +2 more sources

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Odobenus rosmarus divergens (Odobenidae) groups in the waters adjacent to coastal haulouts (Chukchi Peninsula, Russia)

open access: yesNature Conservation Research: Заповедная наука
The distance between individuals is one of the key characteristics of the spatial structure of a group. Here, we investigated inter-individual distances in Odobenus rosmarus divergens (hereinafter – walrus) aggregations in waters adjacent to four coastal
Andrey N. Giljov   +4 more
doaj   +1 more source

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