Sentences with phrase «for seasonal migrations»

The larger species in the study tended to flow in a consistent direction, suggesting that more species may have specialized biology for seasonal migrations than scientists realized, says study coauthor Jason Chapman, now at the University of Exeter in Penryn, England.

Not exact matches

Roads are directly responsible for the deaths of reptiles and amphibians in Massachusetts during seasonal migrations to nesting sites, seasonal migrations from uplands to breeding wetlands, movement between wetlands and thermoregulation (basking) on road surfaces.

Locally, declining sea ice is affecting the feeding and migration patterns of polar bears, whales, walrus and seals, and the people who live in the Arctic and rely on seasonal ice for their livelihoods.

African lions Panthera leo, for example, occupy stable territories year - round, even in situations where their most abundant prey undergo seasonal migrations and so become inaccessible for part of the year5.

If you're looking for a little bit of eye - popping, life - changing action, keep your eyes peeled during July to November when the humpback whales make their annual seasonal migration.

The Chukchi Sea is also part of the seasonal migration route for Bowhead whales that supports subsistence hunting by local indigenous communities.

The length of the growing season in interior Alaska has increased 45 % over the last century7 and that trend is projected to continue.8 This could improve conditions for agriculture where moisture is adequate, but will reduce water storage and increase the risks of more extensive wildfire and insect outbreaks across much of Alaska.9, 10 Changes in dates of snowmelt and freeze - up would influence seasonal migration of birds and other animals, increase the likelihood and rate of northerly range expansion of native and non-native species, alter the habitats of both ecologically important and endangered species, and affect ocean currents.11

For example, reductions in seasonal sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.For example, reductions in seasonal sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.134

Just last September, an acoustic monitoring program was established by the Bioacoustics Research Program at the Cornell Lab of Ornithology in alliance with the New York State Department of Environmental Conservation for this very reason: to track whales» seasonal migration patterns and provide information to New York state policymakers who develop strategies and management plans to protect these threatened mammals.This listening system originated with the thirteen high - tech buoys deployed around Massachusetts Bay which sounds an alarm to ship captains warning them of the presence of whales so that they will reduce the sped of their vessels to 10 knots.

First and foremost, the Supreme Court's decision necessarily clarifies the requirements for proving Aboriginal title under Canadian law, particularly for semi-nomadic tribes like the Tsilhqot» in who experienced historical patterns of seasonal migration.