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Articles 1 - 5 of 5
Full-Text Articles in Population Biology
Rapid Museum, Gary Barwin
The International Whaling Commission—Beyond Whaling, Andrew J. Wright, Mark P. Simmonds, Barbara Galletti Vernazzani
The International Whaling Commission—Beyond Whaling, Andrew J. Wright, Mark P. Simmonds, Barbara Galletti Vernazzani
Wildlife Population Management Collection
Since its establishment in 1946 as the international body intended to manage whaling, the International Whaling Commission (IWC) has expanded its areas of interest to ensure the wider conservation of whales. Several key conservation topics have been taken forward under its auspices including climate change, chemical and noise pollution, marine debris and whale watching. Work on each of these topics at the IWC has grown substantially since the 1990s and remains ongoing. Important developments were the establishment of the Standing Working Group on Environmental Concerns in 1996 and the IWC’s Conservation Committee in 2003. Trying to address this diverse set …
Gyrfalcon Diet During The Brood Rearing Period On The Seward Peninsula, Alaska, In The Context Of A Changing World, Bryce W. Robinson
Gyrfalcon Diet During The Brood Rearing Period On The Seward Peninsula, Alaska, In The Context Of A Changing World, Bryce W. Robinson
Boise State University Theses and Dissertations
As climate change impacts increase so does our need to understand their effects on ecosystem dynamics. I studied Gyrfalcon (Falco rusticolus) diet during the brood rearing period to improve our knowledge on dietary habits during nesting, and provide necessary information for understanding climate change impacts to Arctic ecosystems. I studied diet over two breeding seasons on the Seward Peninsula, Alaska, using two methods: motion-activated cameras and the collection of prey remains. I observed three important dietary shifts: the proportion of ptarmigan in the diet declined significantly throughout the season, the proportion of large prey items declined significantly throughout …
Short-Beaked Common Dolphin (Delphinus Delphis) Occurrence In The Moray Firth, North-East Scotland, Kevin P. Robinson, Sonja Eisfeld, Marina Costa, Mark P. Simmonds
Short-Beaked Common Dolphin (Delphinus Delphis) Occurrence In The Moray Firth, North-East Scotland, Kevin P. Robinson, Sonja Eisfeld, Marina Costa, Mark P. Simmonds
Mark P. Simmonds, OBE
The short-beaked common dolphin (Delphinus delphis) is regarded as notably rare or absent from the northern North Sea, but recent evidence suggests a rising frequency of the species in these waters with increasing regional sea temperatures. The following paper documents the presence of D. delphis in the Moray Firth in north-east Scotland and provides the first evidence for the sustained occurrence of these delphinids in this region during the warmer summer months at least. Sightings were collated during systematic surveys of the outer Moray Firth between 2001 and 2009 by independent research teams from the CRRU and WDCS. A total …
A Review Of Fall Sandhill Crane Migration Through Indiana, Allisyn-Marie T. Y. Gillet
A Review Of Fall Sandhill Crane Migration Through Indiana, Allisyn-Marie T. Y. Gillet
Proceedings of the North American Crane Workshop
The Indiana Division of Fish and Wildlife conducts surveys from October to December to collect long-term data on greater sandhill cranes (Grus canadensis tabida). Results from these censuses contribute to a fall index of the Eastern Population, which informs wildlife management decisions and research priorities. Recent findings from the annual U. S. Fish and Wildlife Service Fall Sandhill Crane Migration Survey demonstrate a decline in the number of cranes observed at fall staging areas throughout Indiana since 1979. However, nationwide data exhibit a trend of population increase. I provide evidence to show that the apparent decline in the …