搜索结果: 1-15 共查到“理学 whales”相关记录15条 . 查询时间(0.065 秒)
Whales may owe their efficient digestion to millions of tiny microbes（图）
Whales efficient digestion millions tiny microbes
2019/12/13
A study by NSF-funded researchers at the Woods Hole Oceanographic Institution shows that the microbial communities inside whales may play an important role in the digestion of one of the ocean's most ...
How to monitor global ocean warming–without harming whales
monitor global ocean warming without harming whales
2016/11/29
Most of the extra heat trapped by human-generated emissions is ending up in the oceans. But tracking the temperature of the world’s oceans to monitor the change is trickier than it might seem. While s...
Rare beluga data show whales dive to maximize meals
beluga data show whales dive maximize meals
2016/2/23
Children’s singer and songwriter Raffi may have brought beluga whales into popular culture with his 1980 song “Baby Beluga,” but surprisingly little is actually known about the life and ecology of the...
Contrasting Population Structure from Nuclear Intron Sequences and mtDNA of Humpback Whales
Nuclear Intron Sequences mtDNA
2015/12/17
Powerful analyses of population structure require information from multiple genetic loci. To help develop a
molecular toolbox for obtaining this information, we have designed universal oligonucleoti...
In the market for minke whales
minke whales ecology
2015/12/17
The capture–recapture technique is a mainstay of ecology. This principle
has been applied with individual genotyping to estimate how many
accidentally killed minke whales reach the markets of Sout...
Pre-Whaling Genetic Diversity and Population Ecology in Eastern Pacific Gray Whales: Insights from Ancient DNA and Stable Isotopes
Population Ecology Pre-Whaling Genetic Diversity
2015/12/11
Commercial whaling decimated many whale populations, including the eastern Pacific gray whale, but little is known about
how population dynamics or ecology differed prior to these removals. Of partic...
Are Antarctic minke whales unusually abundant because of 20th century whaling?
Antarctic marine ecosystem Antarctic minke whale
2015/12/11
Severe declines in megafauna worldwide illuminate the role of top predators in
ecosystem structure. In the Antarctic, the Krill Surplus Hypothesis posits that the killing
of more than 2 million larg...
Impact of Climate Variability on the Recovery of Endangered North Atlantic Right Whales
Climate Variability Endangered North Atlantic Right Whales
2015/7/31
The demographic responses of long-lived endangered species to climate variability can be complex. Nonlinearities in physical and biological processes can obscure relationships between changes in clima...
On the Movement of Beluga Whales in Cook Inlet,Alaska:Simulations of Tidal and Environmental Impacts Using a Hydrodynamic Inundation Model
Beluga Whales Cook Inlet Alaska Tidal and Environmental Hydrodynamic Inundation Model
2015/7/22
The population of beluga whales in Cook Inlet, Alaska, is in decline, and since 2000 these whales have been under consideration for designation as "endangered" under the Endangered Species Act (and we...
Under the right meteorological conditions, whales can leave a trail of cool spots on the ocean surface that are detectable in infrared images. When the wind is light and the sun is shining, the surfac...
The Arctic is home to a growing number of whales and ships, and to populations of sub-Arctic whales that are expanding their territory into newly ice-free Arctic waters.
Mitochondrial and Nuclear Genetic Variation across Calving Lagoons in Eastern North Pacific Gray Whales (Eschrichtius robustus)
cetacean microsatellite population structure
2015/12/11
Accurate knowledge of population structure in cetaceans is critical for preserving and managing breeding habitat,
particularly when habitat is not uniformly protected. Most eastern gray whales return...
DNA evidence for historic population size and past ecosystem impacts of gray whales
population size past ecosystem impacts
2015/12/17
Ecosystem restoration may require returning threatened populations of ecologically pivotal species to near their former abundances, but it is often difficult to estimate historic population size...
Resort could spell disaster for Bahamian whales and dolphins
marine species whales dolphins
2007/4/24
2007-04-13，Coastal resort development could spell disaster for Bahamian whales and dolphins.The proposed development of a coastal resort on the island of Abaco, in the Bahamas may jeopardise the futur...
It is well known that hunting dramatically reduced all baleen whale populations,yet reliable estimates of former whale abundances are elusive. Based on coalescent models for mitochondrial DNA sequence...