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Your search keyword '"Frey, Jennifer K."' showing total 295 results
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295 results on '"Frey, Jennifer K."'

1. Index

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

2. Glossary

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

3. Appendices

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

37. Preface

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

38. Maps

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

39. Contents

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

41. Foreword

Author

Frey, Jennifer K. and Cartron, Jean-Luc E.

Published
2023

45. Microhabitat selection by the Oscura Mountains Colorado Chipmunk (Neotamias quadrivittatus oscuraensis): an old-growth pinyon–juniper woodland specialist.

Author

O'Connell, Clare N and Frey, Jennifer K

Subjects
*NATURAL history, *HABITAT conservation, *CHIPMUNKS, *ECOLOGICAL niche, *FORESTS & forestry
Abstract

Habitat specialists have been largely overlooked in old-growth pinyon–juniper woodlands, despite specialists exhibiting heightened sensitivity to anthropogenic habitat loss. Furthermore, small mammal relationships within pinyon–juniper woodlands have most commonly been investigated via species abundance or habitat use, rather than habitat selection, thereby providing limited management metrics. We used the Oscura Mountains Colorado Chipmunk (Neotamias quadrivittatus oscuraensis) as a model organism to evaluate whether old-growth conditions drive resource selection by small mammals associated with pinyon–juniper woodlands. The goal of our study was to determine resources important to the chipmunk to inform management decisions. We evaluated microhabitat selection by testing a priori predictions based on natural history characteristics of the chipmunk and the woodlands. We grouped predictions into habitat characteristics affiliated with or not affiliated with old growth. We tested predictions under a multistage modeling framework using generalized linear mixed models with a binomial response variable of use versus availability. Probability of selection by chipmunks increased with increasing mean juniper diameter and increasing variation of pinyon diameter and decreased with increased distance to rocky escape terrain and increased mean percent grass cover. Our findings support the classification of the Oscura Mountains Colorado chipmunk as an old-growth pinyon–juniper specialist, as the chipmunk displayed disproportionate preference for old-growth microhabitat conditions. We recommend management policies that conserve old-growth multiage stands of pinyons and junipers. Old-growth conditions near outcroppings, escarpments, and large boulders are of particular conservation concern. Further, thinning resulting in increased grass cover may be detrimental to this old-growth pinyon–juniper specialist. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
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48. Mammals of Padre Island National Seashore, Texas /

Author

Jones, Gerrad D., Frey, Jennifer K. (Jennifer Kristen), 1964, Museum of Texas Tech University, Jones, Gerrad D., and Frey, Jennifer K. (Jennifer Kristen), 1964

Subjects
Mammals, Padre Island National Seashore, Texas
Published
2013

49. Mammals of Sugarite Canyon State Park, Colfax County, New Mexico /

Author

Frey, Jennifer K. (Jennifer Kristen), 1964, Schwenke, Zachary J., Texas Tech University. Museum, Texas Tech University. Natural Science Research Laboratory, Museum of Texas Tech University, Frey, Jennifer K. (Jennifer Kristen), 1964, Schwenke, Zachary J., Texas Tech University. Museum, and Texas Tech University. Natural Science Research Laboratory

Subjects
Mammals, New Mexico, Sugarite Canyon State Park, Sugarite Canyon State Park (N.M.)
Published
2012

50. Microhabitat selection by the Oscura Mountains Colorado Chipmunk (Neotamias quadrivittatus oscuraensis): an old-growth pinyon–juniper woodland specialist

Author

O’Connell, Clare N and Frey, Jennifer K

Abstract

Habitat specialists have been largely overlooked in old-growth pinyon–juniper woodlands, despite specialists exhibiting heightened sensitivity to anthropogenic habitat loss. Furthermore, small mammal relationships within pinyon–juniper woodlands have most commonly been investigated via species abundance or habitat use, rather than habitat selection, thereby providing limited management metrics. We used the Oscura Mountains Colorado Chipmunk (Neotamias quadrivittatus oscuraensis) as a model organism to evaluate whether old-growth conditions drive resource selection by small mammals associated with pinyon–juniper woodlands. The goal of our study was to determine resources important to the chipmunk to inform management decisions. We evaluated microhabitat selection by testing a priori predictions based on natural history characteristics of the chipmunk and the woodlands. We grouped predictions into habitat characteristics affiliated with or not affiliated with old growth. We tested predictions under a multistage modeling framework using generalized linear mixed models with a binomial response variable of use versus availability. Probability of selection by chipmunks increased with increasing mean juniper diameter and increasing variation of pinyon diameter and decreased with increased distance to rocky escape terrain and increased mean percent grass cover. Our findings support the classification of the Oscura Mountains Colorado chipmunk as an old-growth pinyon–juniper specialist, as the chipmunk displayed disproportionate preference for old-growth microhabitat conditions. We recommend management policies that conserve old-growth multiage stands of pinyons and junipers. Old-growth conditions near outcroppings, escarpments, and large boulders are of particular conservation concern. Further, thinning resulting in increased grass cover may be detrimental to this old-growth pinyon–juniper specialist.An endemic chipmunk selects old-growth pinyon–juniper woodland stands at the microhabitat scale, highlighting the importance of conserving these systems for maintaining biodiversity.

Published
2024
Full Text
View/download PDF

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