Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Local Trampling Disturbance Effects On Alpine Plant Populations And Communities: Negative Implications For Climate Change Vulnerability, Nathalie Chardon, Sonja Wipf, Christian Rixen, Annabarbara Beilstein, Daniel F. Doak Jan 2018

Local Trampling Disturbance Effects On Alpine Plant Populations And Communities: Negative Implications For Climate Change Vulnerability, Nathalie Chardon, Sonja Wipf, Christian Rixen, Annabarbara Beilstein, Daniel F. Doak

University Libraries Open Access Fund Supported Publications

Global change is modifying species communities from local to landscape scales, with

alterations in the abiotic and biotic determinants of geographic range limits causing

species range shifts along both latitudinal and elevational gradients. An important

but often overlooked component of global change is the effect of anthropogenic

disturbance, and how it interacts with the effects of climate to affect both species

and communities, as well as interspecies interactions, such as facilitation and competition.

We examined the effects of frequent human trampling disturbances on alpine

plant communities in Switzerland, focusing on the elevational range of the widely

distributed cushion plant Silene ...


Climate Change And Wildfire: Implications For Forest Management In The Blue Mountains Of Eastern Oregon, Angela Elaine Boag Jan 2018

Climate Change And Wildfire: Implications For Forest Management In The Blue Mountains Of Eastern Oregon, Angela Elaine Boag

Environmental Studies Graduate Theses & Dissertations

Shifting climate and wildfire regimes are changing forest structure and function globally. In the western US, future forest structure will be determined by interactions between climate change and disturbance, including increasingly frequent large wildfires, as well as the forest management actions of landowners and managers. While research on the ecological impacts of these changes is rapidly expanding, there is limited focus on how forest vulnerability may vary across land ownerships, which may have varying capacities for climate-adaptive forest management. In this dissertation, I explored how coniferous forests in the Blue Mountains of eastern Oregon are vulnerable to climate and wildfire ...


The Effects Of Human Trampling Disturbance, Plant-Plant Interactions, And Climate On The Performance And Distribution Of The Alpine Cushion Plant Silene Acaulis, Nathalie Isabelle Chardon Jan 2018

The Effects Of Human Trampling Disturbance, Plant-Plant Interactions, And Climate On The Performance And Distribution Of The Alpine Cushion Plant Silene Acaulis, Nathalie Isabelle Chardon

Environmental Studies Graduate Theses & Dissertations

Delineating the abiotic and biotic processes that set species geographic distributions has been a central theme in ecological research for hundreds of years, yet we still do not understand many aspects of this broad question. Discerning what processes determine past and current range limits is particularly critical for predicting how species distributions will respond to climate change. In Chapters 2 and 3, I address how the interactions of climate, inter-species interactions such as competition, and human disturbances together influence range limits. I show that disturbance has positive effects on the alpine cushion plants Silene acaulis and Minuartia obtusiloba at the ...