Dispersal patterns of lynx in the northwest territories

Article Abstract:

Investigations into dispersal patterns of lynx are important to population and harvest dynamics. The dispersal patterns of radiocaollared and eartagged lynx in southwestern Northwest Territories were studied in relation to low abundance of snowshoe hares. Dispersal rates were highest during the year after hare density declined, but there was no difference in dispersal rates between male and female lynx. Natural causes, rather than human causes, were the main reason for mortality. It is suggested that lynx populations are both highly mobile and vulnerable after the decline in hare density, and therefore limited harvesting could be implemented during the period.

Research, Hares, Lynx, Lynxes

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Satellite-monitored movements of the northern right whale

Article Abstract:

The northern right whale remains critically endangered, despite being internationally protected since 1936, and there are fewer than 300 in the North Atlantic. Little is known about right whale distribution and their movements throughout the year. A new investigation uses nine satellite-monitored radiotagged whales in the Bay of Fundy to deduce their habitat-use patterns. The study shows that right whales, previously considered to be a near-shore, slow-moving species, are highly mobile, moving an average 68 km/d.

Usage, Natural history, Marine mammals, Animal radio tracking, Northern right whale, Bay of Fundy

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Fluctuating asymmetry as an indicator of environmental stress from off-highway vehicles

Article Abstract:

Fluctuating asymmetry of bilateral head-scale patterns in population of lizards at 3 off-highway vehicle (OHV) and 3 non-OHV sites were measured to examine the effect of OHV activity. Results concluded that fluctuating asymmetry was higher at OHV sites relative to non-OHV sites.

United States, Influence, Environmental aspects, Lizards, Off road vehicles, Ecological stress, Report

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