Author: Calvin M. Kaya
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 0

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Author: Montana Fluvial Arctic Grayling Workgroup
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 28

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Author:
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 20

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Author: Shane Jeffrey Vatland
Publisher:
ISBN:
Category : Big Hole River (Mont.)
Languages : en
Pages : 119

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The upper Big Hole River basin in southwestern Montana supports one of the last naturally-reproducing populations of fluvial Arctic grayling Thymallus arcticus in the coterminous United States. Warm summer water temperatures and negative interactions with non-native fish (brook trout Salvelinus fontinalis, rainbow trout Oncorhynchus mykiss, and brown trout Salmo trutta) have been identified as critical factors constraining this grayling population. Arctic grayling and these non-native fishes are all cold-water species with similar temperature requirements. Understanding when, where, and to what extent water temperatures are suitable for these fishes provides a physical basis for conservation planning. In chapter 2, I used a combination of thermal infrared (TIR) imagery and stationary temperature recorders to estimate water temperatures at a relatively fine spatial (every ~ 100 m of stream length) and temporal (continuous) resolution over a large extent of the Big Hole River (~ 100 km) during the warmest part of the summer in 2008. This modeling revealed considerable spatial and temporal heterogeneity in water temperature and highlighted the value of assessing thermal regimes at relatively fine spatial and temporal scales. In chapter 3, I assessed the potential effects of climate change on thermal suitability of summer water temperatures for these salmonids. Water temperature simulations projected significant warming from the 1980s through the 2060s. Despite this warming, water temperatures in some sections of stream remained below thermal tolerance thresholds through the 2060s. These stream temperature data provide a critical foundation for understanding the dynamic, multiscale habitat needs of these mobile stream fish and can aid in developing conservation strategies for fluvial Arctic grayling.

Author:
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Category :
Languages : en
Pages :

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Category :
Languages : en
Pages :

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Author: Dominick A. DellaSala
Publisher: Elsevier
ISBN: 0128129891
Category : Science
Languages : en
Pages : 451

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Conservation Science and Advocacy for a Planet in Peril: Speaking Truth to Power helps equip scientists working on environmental and sustainability challenges with new tactics for success. Global efforts and cooperation by member states of environmental conventions have steadily increased but lack efficient and scalable mechanisms of translating conservation science to policy. The gap between science and policy is growing and very little time remains before the climate change and biodiversity lossess trigger widespread disruptions of the planet's life support systems. This book covers these important topics, providing a must read for environmental and conservation scientists, climate change activists, students, social scientists, economic professionals, sustainable businesses and policymakers. - Provides an unprecedented collection of local, regional, and national case studies from scientists and practitioners engaged in outreach to decision makers and the public - Covers personal accounts that bring science into policymaking, providing usable guidelines for those working to bridge this gap - Includes the requisite information needed for effective communications and campaign strategies by sharing lessons learned

Author: George Alton Liknes
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 118

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Author:
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ISBN:
Category :
Languages : en
Pages : 272

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Author: Calvin M. Kaya
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 97

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