Results 31 to 40 of about 95,512 (346)

Architectural Decoration and Small Forms in Dranda Church: New Findings

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2018
Introduction. This article deals with the altar barrier from the medieval church in Dranda village (Abkhazia). It is not preserved in its original form. Two slabs with figurative compositions were published by countess P. S.
Ekaterina Yu. Endoltseva   +1 more
doaj   +1 more source

Estimating the impact of whaling on global whale-watching [PDF]

open access: yesTourism Management, 2009
After the commercial whaling moratorium was enacted in 1986, whale watching became one of the fastest growing tourism industries worldwide. As whaling was regarded as an activity that is incompatible with whale watching, the possible resumption of commercial whaling caused an urgent need to investigate the potential negative effects of whaling on the ...
Hsiao-I Kuo   +4 more
openaire   +10 more sources

Evaluation of Whale, Fruit Fly and Cuckoo Search Algorithms in Optimizing Multi-Objective Operation of Golestan Dam Reservoir Based on Multi-Criteria Decision-Making Method [PDF]

open access: yesمهندسی منابع آب, 2020
In this research, after introducing the Whale, Cuckoo search and fruit fly Multi-Objective Optimization Algorithms, their performance individually and compared to each other was evaluated to optimize the Golestan Dam reservoir operation policies with an ...
Alireza Donyaii   +2 more
doaj  

Killer whale presence drives bowhead whale selection for sea ice in Arctic seascapes of fear

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance Behavioral responses of prey to perceived predation risk are now recognized as important components of predator−prey interactions, but have rarely been quantified in marine vertebrates.
C. Matthews   +3 more
semanticscholar   +1 more source

Whale Stocks and Whaling [PDF]

open access: yesNature, 1946
Norsk Hvalfangst-Tidende, now in its thirty-fourth year, is the official organ of the Norwegian Whaling Association. It is a current history of whaling and publishes information on all branches of the subject.
openaire   +1 more source

Satellite tracking reveals novel migratory patterns and the importance of seamounts for endangered South Pacific humpback whales [PDF]

open access: yesRoyal Society Open Science, 2015
The humpback whale population of New Caledonia appears to display a novel migratory pattern characterized by multiple directions, long migratory paths and frequent pauses over seamounts and other shallow geographical features.
Claire Garrigue   +4 more
doaj   +1 more source

Drone Observations of Marine Life and Human–Wildlife Interactions off Sydney, Australia

open access: yesDrones, 2022
Drones have become popular with the general public for viewing and filming marine life. One amateur enthusiast platform, DroneSharkApp, films marine life in the waters off Sydney, Australia year-round and posts their observations on social media.
Vanessa Pirotta   +3 more
doaj   +1 more source

Exposure of marine megafauna to cumulative anthropogenic threats in north-west Australia

open access: yesFrontiers in Ecology and Evolution, 2023
As the use of coastal and offshore environments expands, there is a need to better understand the exposure of marine megafauna to anthropogenic activities that potentially threaten their populations.
Luciana C. Ferreira   +33 more
doaj   +1 more source

Predicting global killer whale population collapse from PCB pollution

open access: yesScience, 2018
PCB—still a problem Until they were recognized as highly toxic and carcinogenic, polychlorinated biphenyls (PCBs) were once used widely. Their production was banned in the United States in 1978, though they are still produced globally and persist in the ...
J. Desforges   +15 more
semanticscholar   +1 more source

Inexpensive Aerial Photogrammetry for Studies of Whales and Large Marine Animals

open access: yesFrontiers in Marine Science, 2017
We describe a simple system enabling accurate measurement of swimming marine mammals and other large vertebrates from low-altitude single-frame photogrammetry via inexpensive modifications to a “prosumer” unmanned aerial vehicle (UAV) equipped with ...
Stephen M. Dawson   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy