The climate-niche distribution--or the areas with suitable climate for survival--were mapped 130 reptile species in the recent time period and predicted for the late-century time period under the RCP 8.5 climate scenario. The RCP 8.5 scenario assumes carbon emissions continue at their current levels.
Robert S Arkle
I am a Supervisory Ecologist at the USGS Forest and Rangeland Ecosystem Science Center. My research focuses on population ecology, community ecology, and restoration in forests and shrublands of the Intermountain West.
My research focuses on how stochastic and anthropogenic disturbances influence species, communities, and habitats. I am interested in how these interactions can affect the outcome of management actions such as habitat restoration or exotic species removal efforts. My experience is in modeling species-habitat relationships, interspecific interactions, habitat connectivity, climate suitability, and in using multivariate approaches to assess community structure and composition. Much of my work has focused on the effects of landscape-scale disturbance or restoration on patch-scale community structure and composition in forest and sagebrush ecosystems. I have worked in several biomes and community types of western North America including studies in alpine lakes and meadows, coniferous forests, riparian forests, mountain streams, sagebrush shrublands, and grasslands. In these systems, I have studied communities of plants, biotic soil crusts, aquatic and terrestrial invertebrates, amphibians, reptiles, salmonids, birds, small mammals, and ungulate mammals.
Science and Products
Project ROAM
USGS is identifying, testing, and verifying rapid methods for rangeland assessment and restoration monitoring. Our methods complement existing monitoring frameworks, providing land management agencies with timely information that can be used to determine if restoration investments are successful, and why. Standardization, validation, repeatability, data management, and training are at the core of...
GIS Clipping and Summarization Tool for Points, Lines, Polygons, and Rasters
Geographic Information System (GIS) analyses are an essential part of natural resource management and research. Calculating and summarizing data within intersecting GIS layers is common practice for analysts and researchers. However, the various tools and steps required to complete this process are slow and tedious, requiring many tools iterating over hundreds, or even thousands of datasets. We pr
Annotated Bibliography of Scientific Research on Greater Sage-Grouse
The greater sage-grouse has been a focus of scientific investigation and management action for the past two decades. The sheer number of scientific publications can be a challenge for managers tasked with evaluating and determining the need for potential updates to existing planning documents.
Wildlife Ecology and Conservation Biology Team (FRESC)
Wildlife respond to changes in their environment, some of which are dramatic and others subtle. To fully understand the factors that drive changes in populations and communities, we need better information on wildlife ecology in natural and human-altered landscapes. We conduct research and provide technical assistance to address applied questions about the ecology and conservation of wildlife...
Reptile species richness and its predicted geographic change
The climate-niche distribution--or the areas with suitable climate for survival--were mapped 130 reptile species in the recent time period and predicted for the late-century time period under the RCP 8.5 climate scenario. The RCP 8.5 scenario assumes carbon emissions continue at their current levels.
Idaho giant salamander
Idaho giant salamander as seen from above
Idaho giant salamander as seen from above
Science and Products
Project ROAM
USGS is identifying, testing, and verifying rapid methods for rangeland assessment and restoration monitoring. Our methods complement existing monitoring frameworks, providing land management agencies with timely information that can be used to determine if restoration investments are successful, and why. Standardization, validation, repeatability, data management, and training are at the core of...
GIS Clipping and Summarization Tool for Points, Lines, Polygons, and Rasters
Geographic Information System (GIS) analyses are an essential part of natural resource management and research. Calculating and summarizing data within intersecting GIS layers is common practice for analysts and researchers. However, the various tools and steps required to complete this process are slow and tedious, requiring many tools iterating over hundreds, or even thousands of datasets. We pr
Annotated Bibliography of Scientific Research on Greater Sage-Grouse
The greater sage-grouse has been a focus of scientific investigation and management action for the past two decades. The sheer number of scientific publications can be a challenge for managers tasked with evaluating and determining the need for potential updates to existing planning documents.
Wildlife Ecology and Conservation Biology Team (FRESC)
Wildlife respond to changes in their environment, some of which are dramatic and others subtle. To fully understand the factors that drive changes in populations and communities, we need better information on wildlife ecology in natural and human-altered landscapes. We conduct research and provide technical assistance to address applied questions about the ecology and conservation of wildlife...
Reptile species richness and its predicted geographic change
The climate-niche distribution--or the areas with suitable climate for survival--were mapped 130 reptile species in the recent time period and predicted for the late-century time period under the RCP 8.5 climate scenario. The RCP 8.5 scenario assumes carbon emissions continue at their current levels.
The climate-niche distribution--or the areas with suitable climate for survival--were mapped 130 reptile species in the recent time period and predicted for the late-century time period under the RCP 8.5 climate scenario. The RCP 8.5 scenario assumes carbon emissions continue at their current levels.
Idaho giant salamander
Idaho giant salamander as seen from above
Idaho giant salamander as seen from above