Results 51 to 60 of about 7,925 (202)

Phylogeny and adaptive evolution of the brain-development gene microcephalin (MCPH1) in cetaceans. [PDF]

open access: yes, 2011
BACKGROUND: Representatives of Cetacea have the greatest absolute brain size among animals, and the largest relative brain size aside from humans. Despite this, genes implicated in the evolution of large brain size in primates have yet to be surveyed in ...
Clark, Clay   +3 more
core   +6 more sources

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

open access: yesOikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley   +7 more
wiley   +1 more source

Resident Harbor Porpoises (Phocoena phocoena vomerina) in the Salish Sea: Photo-Identification Shows Long-Term Site Fidelity, Natal Philopatry, and Provides Insights into Longevity and Behavior

open access: yesOceans
Harbor porpoises have been well studied in locations worldwide, but relatively little research has focused on site fidelity of individuals, which influences population structure and determines appropriate management and conservation measures.
Cindy R. Elliser   +2 more
doaj   +1 more source

Predicting Harbor Porpoise Strandings Based on Near-Shore Sightings Indicates Elevated Temporal Mortality Rates

open access: yesFrontiers in Marine Science, 2021
The increase in anthropogenic activities and their potential impact on wildlife requires the establishment of monitoring programs and identification of indicator species. Within marine habitats, marine mammals are often used as ecosystem sentinels, which
Lonneke L. IJsseldijk   +9 more
doaj   +1 more source

Dating the Cryptococcus gattii Dispersal to the North American Pacific Northwest. [PDF]

open access: yes, 2018
The emergence of Cryptococcus gattii, previously regarded as a predominantly tropical pathogen, in the temperate climate of the North American Pacific Northwest (PNW) in 1999 prompted several questions.
Bodo Wanke   +15 more
core   +3 more sources

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann   +2 more
wiley   +1 more source

Comparative analysis on distribution of common cetacean and fish species in the Barents Sea

open access: yesИзвестия ТИНРО, 2021
Comparative analysis of cetacean and fish species distribution in the Barents Sea is conducted on the data of joint Russian-Norwegian ecosystem surveys in August-October of 2005–2014.
R. N. Klepikovskiy   +2 more
doaj   +1 more source

Central nervous system disease and genital disease in harbor porpoises (Phocoena phocoena) are associated with different herpesviruses [PDF]

open access: yes, 2016
Herpesvirus infection causes disease of variable severity in many species, including cetaceans. However, little is known about herpesvirus infection in harbor porpoises (Phocoena phocoena), despite being widespread in temperate coastal waters of the ...
Bildt, M.W.G. (Marco) van de   +7 more
core   +1 more source

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