scholarly journals Some aspects of reproduction in the vole Microtus townsendii

1979 ◽  
Vol 57 (1) ◽  
pp. 18-24 ◽  
Author(s):  
Judith L. Anderson ◽  
Rudy Boonstra
Keyword(s):  
British Columbia ◽  
Litter Size ◽  
Forest Litter ◽  
Detailed Account ◽  
Population Fluctuations ◽  
Reproductive Parameters ◽  
University Of British Columbia ◽  
Significant Difference ◽  
The University ◽  
Microtus Townsendii

Changes in various reproductive parameters have pronounced effects on microtine population fluctuations. This study presents a detailed account of reproduction in Microtus townsendii. Populations in two areas were studied. On Westham Island, litter size, estimated by autopsy, was correlated positively with weight. There was no significant difference in litter size between primiparous and multiparous females. Females pregnant in spring had more embryos than those pregnant in summer or fall. Breeding was concentrated in spring and summer, with most females continuously pregnant.In the University of British Columbia Research Forest, litter size at recruitment was found to be unrelated to parity, size, or LAP genotype of the mother. While the size of consecutive litters (determined by autopsy) was significantly repeatable within an individual mother, recruitment litter size was not. Autopsy litter size, as at Westham Island, was largest in spring, but recruitment litter size was largest in autumn. Entire litters were lost most often during winter and summer. Overnight trapping may be responsible for loss of some litters at or just before parturition. Litters born in traps were usually unsuccessful, but otherwise mothers of totally unsuccessful litters seemed to avoid traps. Neither parity nor LAP genotype was related to the loss of entire litters.

Critical thinking or common sense?

2016 ◽  
Vol 179 (7) ◽  
pp. i-ii
Author(s):  
Vicki Adams
Keyword(s):  
British Columbia ◽  
Critical Thinking ◽  
Common Sense ◽  
Animal Science ◽  
University Of British Columbia ◽  
The University

Vicki Adams grew up in Vancouver, Canada, and graduated with a degree in animal science from the University of British Columbia before being accepted into vet school in Saskatchewan. Her animal science background has given her the population perspective that is so important in epidemiology and she now runs her own consulting company, Vet Epi

A nursing model in action: the University of British Columbia experience

1993 ◽  
Vol 18 (8) ◽  
pp. 1259-1266
Author(s):  
Sally Thorne ◽  
Carol Jillings ◽  
Donelda Ellis ◽  
JoAnn Perry
Keyword(s):  
British Columbia ◽  
University Of British Columbia ◽  
The University

Advancing campus and community sustainability: strategic alliances in action

2014 ◽  
Vol 15 (2) ◽  
pp. 157-168 ◽  
Author(s):  
Leanne Bilodeau ◽  
Jackie Podger ◽  
Alaa Abd-El-Aziz
Keyword(s):  
Higher Education ◽  
British Columbia ◽  
Community Development ◽  
Lessons Learned ◽  
Content Type ◽  
Sustainable Community Development ◽  
University Of British Columbia ◽  
Societal Needs ◽  
Sustainability Initiatives ◽  
The University

Purpose – Universities can provide a leadership role to develop and mobilize knowledge to meet societal needs. In fulfilling this mission, universities can also serve as agents of sustainable development on campus and in communities they serve. The purpose of this article is to describe the drivers that have advanced the University of British Columbia Okanagan campus' operational and academic sustainability objectives; the initiatives and partnerships developed on campus and in the community in response to these drivers; and the outcomes and lessons learned. Design/methodology/approach – This article summarizes the experience of the University of British Columbia Okanagan campus in leveraging key drivers to develop sustainability initiatives and partnerships for greater operational efficiencies, cost savings, environmental stewardship and applied research. The university's leadership commitment to sustainability, economic opportunities and provincial legislative requirements are among the drivers discussed. This paper also provides an innovative partnership framework to support sustainable community development. Findings – Drivers of sustainability in higher education can contribute to the development of sustainability initiatives and partnerships that benefit institutions and communities and achieve operational and academic sustainability mandates. Practical implications – This article provides information that can be applied by institutions of higher education to advance sustainability within the context of current economic conditions and societal needs. Originality/value – The experience of the campus and the partnership framework presented in this paper is original. The framework provides a mechanism to engage students, faculty and the community in sustainable community development research. Key insights from multiple perspectives and lessons learned are shared.

Breeding characteristics of Townsend's vole (Microtus townsendii) during population fluctuations

1980 ◽  
Vol 58 (4) ◽  
pp. 623-625 ◽  
Author(s):  
Terry D. Beacham
Keyword(s):  
British Columbia ◽  
Sexual Maturity ◽  
Fraser River ◽  
Population Fluctuations ◽  
Peak Density ◽  
Decline Phase ◽  
Early Maturing ◽  
Fraser River Delta ◽  
Peak Phase ◽  
Microtus Townsendii

A 2-year livetrapping study on Townsend's vole (Microtus townsendii) on Reifel Island in the Fraser River delta in British Columbia, Canada, showed that there was an early stop to summer breeding in the peak phase summer compared with the increasing phase summer. Selective dispersal and death of early-maturing voles may account for this result. A delay occurred in the onset of breeding in the decline phase. Voles in peak density populations had the highest median weights at sexual maturity, and males matured at heavier weights than did females.

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