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Your search keyword '"Harrower, William L."' showing total 21 results
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21 results on '"Harrower, William L."'

1. Using an integrative research approach to improve fish migrations in regulated rivers: a case study on Pacific Salmon in the Seton River, Canada

Author

Bett, Nolan N., Hinch, Scott G., Bass, Arthur L., Braun, Douglas C., Burnett, Nicholas J., Casselman, Matthew T., Cooke, Steven J., Drenner, S. Matthew, Gelchu, Ahmed, Harrower, William L., Ledoux, Roxx, Lotto, Andrew G., Middleton, Collin T., Minke-Martin, Vanessa, Patterson, David A., Zhang, Wenming, and Zhu, David Z.

Published
2022
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5. Using an integrative research approach to improve fish migrations in regulated rivers: a case study on Pacific Salmon in the Seton River, Canada

Author

Bett, Nolan N., primary, Hinch, Scott G., additional, Bass, Arthur L., additional, Braun, Douglas C., additional, Burnett, Nicholas J., additional, Casselman, Matthew T., additional, Cooke, Steven J., additional, Drenner, S. Matthew, additional, Gelchu, Ahmed, additional, Harrower, William L., additional, Ledoux, Roxx, additional, Lotto, Andrew G., additional, Middleton, Collin T., additional, Minke-Martin, Vanessa, additional, Patterson, David A., additional, Zhang, Wenming, additional, and Zhu, David Z., additional

Published
2020
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12. Predicting and Assessing Progress in the Restoration of Ecosystems

Author

Sinclair, A.R.E., primary, Pech, Roger P., additional, Fryxell, John M., additional, McCann, Kevin, additional, Byrom, Andrea E., additional, Savory, C. John, additional, Brashares, Justin, additional, Arthur, Anthony D., additional, Catling, Peter C., additional, Triska, Maggie D., additional, Craig, Michael D., additional, Sinclair, Tim J.E., additional, McLaren, Jennie R., additional, Turkington, Roy, additional, Beyers, Rene L., additional, and Harrower, William L., additional

Published
2017
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16. Predicting and Assessing Progress in the Restoration of Ecosystems.

Author

Sinclair, A. R. E., Pech, Roger P., Fryxell, John M., McCann, Kevin, Byrom, Andrea E., Savory, C. John, Brashares, Justin, Arthur, Anthony D., Catling, Peter C., Triska, Maggie D., Craig, Michael D., Sinclair, Tim J. E., McLaren, Jennie R., Turkington, Roy, Beyers, Rene L., and Harrower, William L.

Subjects
ECOLOGICAL restoration monitoring, ECOSYSTEM management, ECOLOGICAL resilience, ENVIRONMENTAL protection, CONSERVATION of natural resources
Abstract

Abstract: Restoration of degraded landscapes has become necessary to reverse the pervasive threats from human exploitation. Restoration requires first the monitoring of progress toward any chosen goals to determine their resilience and persistence, and second to conduct in a comparable adjacent area but with less human impact the restoration of trophic structures and ecosystem processes to act as reference systems (controls) with which we compare the viability of the chosen goal. We present here the rationale and a method for predicting the trajectory of restoration and assessing its progress toward a predetermined state, the endpoint, using a restoration index. This assessment of restoration requires that we know when a predetermined endpoint has been achieved and whether the envisioned community of species and their interactions can be restored. The restoration index can use species’ presence or density, and the rate of change of ecosystem processes. The index applies to trophic levels, functional groups, successional stages, alternative states, and novel ecosystems. Also, our method allows measurement of the resilience of ecosystems to disturbance, a desired property for conservation and management. We provide global examples to illustrate these points. [ABSTRACT FROM AUTHOR]

Published
2018
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17. A call for applying trophic structure in ecological restoration

Author

Fraser, Lauchlan H., primary, Harrower, William L., additional, Garris, Heath W., additional, Davidson, Scott, additional, Hebert, Paul D. N., additional, Howie, Rick, additional, Moody, Anne, additional, Polster, David, additional, Schmitz, Oswald J., additional, Sinclair, Anthony R. E., additional, Starzomski, Brian M., additional, Sullivan, Thomas P., additional, Turkington, Roy, additional, and Wilson, Dennis, additional

Published
2015
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18. Threats to Canadian species at risk: An analysis of finalized recovery strategies

Author

McCune, Jenny L., primary, Harrower, William L., additional, Avery-Gomm, Stephanie, additional, Brogan, Jason M., additional, Csergő, Anna-Mária, additional, Davidson, Lindsay N.K., additional, Garani, Alice, additional, Halpin, Luke R., additional, Lipsen, Linda P.J., additional, Lee, Christopher, additional, Nelson, Jocelyn C., additional, Prugh, Laura R., additional, Stinson, Christopher M., additional, Whitney, Charlotte K., additional, and Whitton, Jeannette, additional

Published
2013
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20. Food habits of wolverine Gulo guloin montane ecosystems of British Columbia, Canada

Author

Lofroth, Eric C., Krebs, John A., Harrower, William L., and Lewis, Dave

Abstract

We examined the seasonal food habits of wolverine Gulo gulo in subboreal and interior wet-belt montane environments in British Columbia by analyzing scats collected during the course of two concurrent wolverine studies. Understanding foraging ecology for a wide-ranging carnivore such as the wolverine is important, particularly because reproduction has been demonstrated to be closely linked to food abundance. Wolverine diet was shown to vary regionally and seasonally. Regional variation was related to differences in prey availability between study areas. Moose Alces alces, caribou Rangifer tarandus, and hoary marmots Marmota caligata were abundant and common prey items within both study areas. Mountain goats Oreamnos americanus and porcupine Erithizon dorsatum were more abundant and more frequent prey items in the Columbia Mountains, while snowshoe hare Lepus americanus and beaver Castor canadensis were more abundant and more frequent prey items in the Omineca Mountains. Within the winter season, diet choices by reproductive females were different than other sex and age classes. Caribou, hoary marmots and porcupines were found in significantly higher frequencies in the diet of reproductive females. Foraging observations concurred with the findings of scat analyses. Dependence of reproductive females on a species of current conservation concern (caribou) and one which could be affected by issues related to climate change (hoary marmot) may present conservation issues for wolverines in the future.

Published
2007
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