![]() ![]() Journal of Wildlife Management, 32(2): 350-367. The introduction, increase, and crash of reindeer on St. Actual population measurements are indicated on the graph. Figure 2: Graph of assumed population growth of the reindeer herd on St. And so the population increases more rapidly as time goes on, resulting in the curved, concave-up shape of the graph – until 1963, at least. This pattern of growth should make intuitive sense: As more reindeer populate the island, more births occur. Notice that the population of reindeer on the island changed relatively slowly from year to year in the beginning, but as time went on, it increased by larger and larger amounts. ![]() By the 1980s, no reindeer remained on the island.įigure 2 shows Dave Klein’s graph of the reindeer population on St. ![]() This lack of food caused a 40% decrease in the body weight of the animals and made them less able to withstand the harsh winters of St. Overgrazing had wiped out the lichen supply, a significant winter food source for the reindeer. Of those 42, 41 were females and 1 was a male that had abnormal antlers, a sign that it was probably unable to reproduce. Three years later in 1966, Klein and others returned to the island to find that the reindeer population had plummeted from 6,000 healthy reindeer to 42 sickly reindeer. Klein, Professor emeritus, University of Alaska Fairbanks. Klein returned to the island in 1963, where he was astounded to find that the population had swelled to over 6,000, which represents an amazing 47 reindeer per square mile. Fish and Wildlife Service, visited the island and counted 1,350 healthy reindeer, whose population had exploded due to the lack of predators and the abundance of lichens, their primary food source. In 1957, researcher Dave Klein, a biologist working for U.S. A few years later, the Coast Guard abandoned the island, leaving the reindeer behind. To provide an emergency food source for the 19 men at the station, 29 reindeer, consisting of 24 females and 5 males, were introduced to the island (Figure 1). In 1944, the United States Coast Guard set up a station on the island to aid planes and ships in navigating the Bering Sea. Matthew Island is a remote island in the Bering Sea off Alaska. Understanding Scientific Journals and Articles.Using Graphs and Visual Data in Science.Scientists and the Scientific Community.Scientific Notation and Order of Magnitude.The Case of the Ivory-billed Woodpecker.Santiago Ramón y Cajal and Camillo Golgi.Factors that Control Earth's Temperature.Plates, Plate Boundaries, and Driving Forces.Solutions, Solubility, and Colligative Properties.Y-Chromsome and Mitochondrial DNA Haplotypes.Absorption, Distribution, and Storage of Chemicals.“Private tutoring and its impact on students' academic achievement, formal schooling, and educational inequality in Korea.” Unpublished doctoral thesis. Tutors, instructors, experts, educators, and other professionals on the platform are independent contractors, who use their own styles, methods, and materials and create their own lesson plans based upon their experience, professional judgment, and the learners with whom they engage. Varsity Tutors connects learners with a variety of experts and professionals. Varsity Tutors does not have affiliation with universities mentioned on its website. Media outlet trademarks are owned by the respective media outlets and are not affiliated with Varsity Tutors.Īward-Winning claim based on CBS Local and Houston Press awards. Names of standardized tests are owned by the trademark holders and are not affiliated with Varsity Tutors LLC.Ĥ.9/5.0 Satisfaction Rating based upon cumulative historical session ratings through 12/31/20.
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