April 14 2017

Page 1

Nickel Belt News

Volume 57 Number 15

Friday, April 14, 2017

Thompson, Manitoba

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A [non]-fable for today KIRSTEN LEBLANC WILDLIFE MANAGEMENT GRADUATE NATURAL RESOURCES MANAGEMENT TECHNOLOGY UNIVERSITY COLLEGE OF THE NORTH

“There was once a town in the heart of [Manitoba] where all life seemed to live in harmony with its surroundings. The town lay in the midst of a checkerboard of prosperous [forests] … the countryside was, in fact, famous for the abundance and variety of its [small mammals] … then a strange[1,000-kilometre long and 100-metre wide transect right-of-way cut through] the area and everything began to change. Everywhere was a [perspective] of death. There was a strange stillness. The [small mammals] – where had they gone? Many people spoke of them, puzzled and disturbed … only silence lay over the [transects … and the minds of the NRMT students]”. The above excerpt was paraphrased from the first chapter - “A Fable for Tomorrow” - in Rachel Carson’s Silent Spring, a book my wildlife management instructor lent to me some time ago with the intention of solidifying my humility and wonder regarding the nature of science and my interest in natural resources conservation. As our term assignments end, it is proving to be one of his most lasting contributions to my education. Rachel Carson’s 1962 publication captured national sentiment while touching off debates about the responsibility of science for each of us. She deliber-

ately wrote for the public rather than for a narrow scientific audience and she remains an example of what one committed individual can do to change the direction of society. In reading Silent Spring, I too felt a need to report on, and interpret, my research experience here at University College of the North (UCN) while enrolled in the Natural Resources Management Technology (NRMT) program. One research project my class participated in this past year was a small mammal (less than 30 grams) biodiversity survey which included shrews and voles. Shrews are one of the world’s few venomous mammals with an ability to eat its own weight each day to fuel a heart that beats 760 times a minute – 10 times faster than ours! And voles are amazingly effective in the control of sawflies on the honeycombed forest floor (leaving only four-toed front footprints in contrast to the five-toed shrews) as they consume about 200 cocoons per day that live within the spongy soil of the forest floor! Unfortunately, a contemporary concern in Northern Manitoba (and UCN’s service area) includes habitat fragmentation and the alteration of environments essential for small mammals which effectively control insects, support forest sustainability, fur production economies, and northern living cultures. An estimated 100 square kilometres of boreal forest in this provincial expanse is presently being altered to create high voltage direct

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current (HVDC) right-ofway power line corridors. Consequently, investigating small mammal abundance permitted me the opportunity to examine my assumptions and perceptions as to how well these small mammals are using the environments available to them. A century of small mammal species research has generated countless hypotheses and vigorous debates concerning accurate determinations of population estimates directly related to environmental habitat alterations and species interactions. Hence, by examining abundance estimates from northern field collections and place-based methodologies, local judgments can be made as to how well small mammals are adjusting to regional

Nickel Belt News photos courtesy of Kirsten LeBlanc environmental modifications. This concern is particularly relevant regarding interactions and natural resource-related development in northern Manitoba

as trapping of furbearers is regionally prevalent (Manitoba Conservation, 2017). To determine affect, a simple sampling design and catch per unit effort utilized

two identical one-hectare grids in a similar geographic region during the same September five-day period. Additionally, we Continued on Page 8


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