Results 51 to 60 of about 6,087 (203)

Leveraging Synteny to Generate Reference Genomes for Conservation: Assembling the Genomes of Hector's and Māui Dolphins

Molecular Ecology Resources, EarlyView.
ABSTRACT Escalating concern regarding the impacts of reduced genetic diversity on the conservation of endangered species has spurred efforts to obtain chromosome‐level genomes through consortia such as the Vertebrate Genomes Project. However, assembling reference genomes for many threatened species remains challenging due to difficulties obtaining ...
S. Alvarez‐Costes, C. S. Baker, R. Constantine, E. L. Carroll, J. Guhlin, L. Dutoit, S. Ferreira, D. Heimeier, N. J. Gemmell, J. Gillum, R. M. Hamner, W. Rayment, W. Roe, B. Te Aikā, L. Urban, A. Alexander   +15 more
wiley   +1 more source

Prioritizing future evidence needs for marine and freshwater mammal conservation action

Animal Conservation, EarlyView.
To improve conservation practice, decisions should be informed by the available evidence on the effectiveness of conservation actions. Here, we review the comprehensiveness of this evidence base for marine and freshwater mammals. We assess the taxonomic and geographic coverage of the evidence base, identify biases and suggest priorities for future ...
E. Hordern, T.B. White, A. Berthinussen, R.K. Smith, W.J. Sutherland, A.P. Christie   +5 more
wiley   +1 more source

Crowdsourcing modern and historical data identifies sperm whale (Physeter macrocephalus) habitat offshore of south-western Australia

Frontiers in Marine Science, 2016
The distribution and use of pelagic habitat by sperm whales (Physeter macrocephalus) is poorly understood in the south-eastern Indian Ocean off Western Australia.
Christopher Michael Johnson, Christopher Michael Johnson, Christopher Michael Johnson, Lynnath Elizabeth Beckley, Halina Kobryn, Genevieve Ellen Johnson, Iain Kerr, Roger Payne   +7 more
doaj   +1 more source

Using Ancient DNA Analysis and Radiocarbon Dating to Determine the Provenance of an Unusual Whaling Artifact

Frontiers in Ecology and Evolution, 2020
Natural history collections provide a critical temporal view of past biodiversity and are instrumental in the study of extinct populations. However, the value of historical specimens relies on correct species identification, collection date and ...
Caitlin Mudge, Rebecca Dallwitz, Bastien Llamas, Jeremy J. Austin   +3 more
doaj   +1 more source

Deep‐sea food‐web structure at South Sandwich Islands (Southern Ocean): net primary production as a main driver for interannual changes

Ecography, EarlyView.
Food‐webs are a major component of ecosystems and determinant for their functioning and structure. The food chain length (FCL) is a key feature of food‐webs and it is crucial for the resistance of the community to external stressors. The Southern Ocean (SO) food‐web is known for being short and dominated by an Antarctic krill Euphausia superba surplus,
José P. Queirós, Philip R. Hollyman, Paco Bustamante, Diana Vaz, Mark Belchier, José C. Xavier   +5 more
wiley   +1 more source

Leviathans and Liberation: Did Whaling Contribute to the Decline of Slavery?

International Social Science Journal, EarlyView.
ABSTRACT We test the hypothesis slavery started declining in the United States not due to fossil fuel‐driven industrialization but the exploitation of the bioenergy reserves of the world's largest animals. We predict the population in slavery in US states from 1790 to 1840 as a function of the recorded whaling harvest.
Topher L. McDougal, Austin Choi‐Fitzpatrick   +1 more
wiley   +1 more source

KILLER WHALE PREDATION ON SPERM WHALES: OBSERVATIONS AND IMPLICATIONS

Marine Mammal Science, 2001
AbstractIn October 1997 we observed a herd of approximately 35 killer whales (Orcinus orca) attack a pod of nine sperm whales (Physeter macrocephalus) 130 km off the coast of central California. During the four hours we watched, adult female killer whales, including some with calves, attacked in waves of four to five animals in what was apparently a ...
Pitman, Robert L., Ballance, Lisa T., Mesnick, Sarah I., Chivers, Susan J.   +3 more
openaire   +2 more sources

Depredating sperm whales in the Gulf of Alaska: local habitat use and long distance movements across putative population boundaries

Endangered Species Research, 2014
Satellite tags were attached to 10 sperm whales Physeter macrocephalus (1 whale was tagged in 2 different years) to determine the movements of sperm whales involved in removal of sablefish from longline fishing gear in the Gulf of Alaska (GOA).
JM Straley, GS Schorr, AM Thode, J Calambokidis, CR Lunsford, EM Chenoweth, VM O’Connell, RD Andrews   +7 more
doaj   +1 more source

Using citizen science photographs to identify reproductive events in an oviparous elasmobranch

Journal of Fish Biology, EarlyView.
Abstract Identifying critical habitats is important for the effective management of vulnerable species. Critical habitats, such as mating or nursery grounds, support populations during key life stages and help to maximise reproductive output and population growth. In elasmobranchs, mating often happens over a defined season, suggesting sites associated
Rachel Mawer, Jane Dodd, James Thorburn, Neil M. Burns, David M. Bailey   +4 more
wiley   +1 more source

Abundance and Distribution of Sperm Whales in the Canary Islands: Can Sperm Whales in the Archipelago Sustain the Current Level of Ship-Strike Mortalities?

PLoS ONE, 2016
Sperm whales are present in the Canary Islands year-round, suggesting that the archipelago is an important area for this species in the North Atlantic.
Andrea Fais, Tim P Lewis, Daniel P Zitterbart, Omar Álvarez, Ana Tejedor, Natacha Aguilar Soto   +5 more
doaj   +1 more source