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Book Effects of Weather on Caribou Forages Productivity and Nutrition Within the Range of the Chisana Herd Grant W 24 3 W 24 4

Download or read book Effects of Weather on Caribou Forages Productivity and Nutrition Within the Range of the Chisana Herd Grant W 24 3 W 24 4 written by Elizabeth A. Lenart and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Weather on Caribou Forages Productivity and Nutrition Within the Range of the Chisana Herd Research final report Grants W 24 3 W 24 4 W 24 5

Download or read book Effects of Weather on Caribou Forages Productivity and Nutrition Within the Range of the Chisana Herd Research final report Grants W 24 3 W 24 4 W 24 5 written by Elizabeth A. Lenart and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Climate and Caribou

Download or read book Climate and Caribou written by Elizabeth A. Lenart and published by . This book was released on 1997 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Canadian Journal of Zoology

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2002 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Remotely sensed Changes in the Primary Productivity of Migratory Caribou Calving Grounds and Summer Pasture

Download or read book Remotely sensed Changes in the Primary Productivity of Migratory Caribou Calving Grounds and Summer Pasture written by Allen Campeau and published by . This book was released on 2016 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis used remote sensing to examine how changes in caribou abundance can impact forage availability, and how these changes might in turn affect the population dynamics and space use patterns of migratory caribou. We investigated these relationships for the Rivière-George caribou herd (RGH) and its calving grounds and summer range in Northern Quebec and Labrador (Canada) from 1991-2011. We modelled the relationships between primary productivity and various climatic variables, allowing us to isolate the effects of non-climatic factors, such as caribou herbivory, on primary productivity. We found a negative relationship between caribou density and primary productivity at the range-scale, suggesting that caribou herbivory can reduce forage abundance and contribute to habitat degradation. However, a strong warming trend over the study period, coupled with a decline in RGH population size, meant that we observed a trend towards higher primary productivity. This greening trend may represent vegetation recovery following the reduction in caribou herbivory and/or an effect of climate warming.

Book Fish and Wildlife Reference Service Newsletter

Download or read book Fish and Wildlife Reference Service Newsletter written by and published by . This book was released on 1997 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Zoological Record

Download or read book The Zoological Record written by and published by . This book was released on with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Reduction of Wolves in the Yukon

Download or read book Experimental Reduction of Wolves in the Yukon written by Robert D. Hayes and published by . This book was released on 2003 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We conducted a large-scale, controlled experiment to study the responses of declining woodland caribou (Rangifer tarandus), moose (Alces alces), and Dall sheep (Ovis dalli) to a 5-year reduction in wolf (Canis lupus) numbers in the Aishihik area in the southwestern Yukon"--Page 1

Book Migratory Caribou US and Canada Conservation

Download or read book Migratory Caribou US and Canada Conservation written by and published by . This book was released on 1980 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluating the Effects of Nutrition Disease and Predation on Calf Recruitment in the Northern Alaska Peninsula Caribou Herd

Download or read book Evaluating the Effects of Nutrition Disease and Predation on Calf Recruitment in the Northern Alaska Peninsula Caribou Herd written by Justin Albert Gude and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Potential Effects of Global Warming on Calving Caribou

Download or read book Potential Effects of Global Warming on Calving Caribou written by Warren G. Eastland and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calving grounds of barren-ground caribou (Rangifer tarandus) are often in the portion of their range that remains covered by snow late into spring. We propose that global warming would alter the duration of snow cover on the calving grounds and the rate of snowmelt, and thus affect caribou population dynamics. The rationale for this hypothesis is based upon the following arguments. For females of the Porcupine Herd, one of the few forages available before and during early calving are the inflorescences of cotton grass (Eriophorum vaginatum), which are very digestible, high in nitrogen and phosphorus, and low in phenols and acid-detergent fiber. The nutritional levels of the inflorescences are highest in the early stages of phenology and decline rapidly until they are lowest at seed set, about 2 weeks after being exposed from snow cover. The high nutritional level of cotton grass inflorescences is important to post-paturient caribou attempting to meet nutritional requirements of lactation while minimizing associated weight loss. The pattern of weight regain in summer is important to herd productivity as female body weight at mating influences conception in late summer and calving success in spring. Therefore, temporal changes in snowmelt may have major effects on nutritional regimes of the female.