Physical and Environmental Geography Commons^™

Early Humboldtian Influences On Alfred Russel Wallace's Scheme Of Nature [Presented At The Alfred Russel Wallace And His Legacy Royal Society Of London Meeting, 21 October 2013], Charles H. Smith

DLPS Faculty Publications

Alfred Russel Wallace’s 1858 Ternate paper on natural selection is a famous work in the history of science. Beyond his co-discovery of the principle, moreover, Wallace is known for a large number of early applications of the idea, both to biological and biogeographical subjects. Yet how much do we really know about Wallace’s own evolution of thought, and his actual intentions before his views were swallowed up by the inertia of Darwin’s revolution? A number of differences between Wallace’s and Darwin’s views are apparent and have been much treated over the years, but related discussions dwell more on effects than …

Plant Community Composition And Structure Monitoring In Scotts Bluff National Monument, 2013 Annual Report, Isabel Ashton, Michael Prowatzke

United States National Park Service: Publications

Introduction

During the last century, much of the prairie within the Northern Great Plains has been plowed for cropland, planted with non-natives to maximize livestock production, or otherwise developed, making it one of the most threatened ecosystems in the United States. Within Nebraska, greater than 77% of the area of native mixed grass prairie has been lost since European settlement (Samson and Knopf 1994). The National Park Service (NPS) plays an important role in preserving and restoring some of the last pieces of intact prairies within its boundaries. The stewardship goal of the NPS is to “preserve ecological integrity and …

A Natural Resource Condition Assessment For Sequoia And Kings Canyon National Parks, Appendix 16 - Bats, Alice Chung-Maccoubrey

United States National Park Service: Publications

Scope of Analysis

North American bats are highly unique animals that have historically been overlooked by land managers and misunderstood by the public. Bats are unique as the only true flying mammals and due to their exceptionally long lives (5-15 years) and unusually low reproductive rates (typically one young per year) for their small size. Most North American bat species are insectivorous, serve as the primary predators of nocturnal insects, and can consume up to one-third of their weight in insects per night. Thus, bats play a role in regulating insect populations, insect-related ecological processes, and nutrient redistribution and cycling …

Missouri National Recreational River 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner

United States National Park Service: Publications

Includes brief information on plant community monitoring, water quality monitoring, and weather and climate monitoring for the Missouri National Recreational River in the United States for 2012.

Missouri National Recreational River Visitor Study, Summer 2012, Marc F. Manni, Yen Le, Steven J. Hollenhorst

United States National Park Service: Publications

Executive Summary

This visitor study report profiles a systematic random sample of Missouri National Recreation River visitors during July 19 - 25, 2012. A total of 467 questionnaires were distributed to visitor groups. Of those, 256 questionnaires were returned, resulting in a 54.8% response rate.

Group size and type: Thirty-eight percent of visitor groups consisted of two or three people and 35% were in groups of six or more. Sixty-four percent of visitor groups consisted of family groups.

State or country of residence: United States visitors were from 29 states and comprised 99% of total visitation during the survey period, …

Helping Connecticut Towns Plan For Climate Change, Juliana Barrett, Jennifer Pagach

Wrack Lines

A NOAA Climate Change Adaptation Training Workshop helps Connecticut towns plan ahead.

Agate Fossil Beds National Monument 2012 Resource Brief, Marcia Wilson, Kara Paintner, Isabel Ashton, Michael Prowatzke

United States National Park Service: Publications

Includes brief information on plant community monitoring, aquatic invertebrate monitoring, weather and climate monitoring at Agate Fossil Beds National Monument in Nebraska, USA from 2012.

Scotts Bluff National Monument 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner

United States National Park Service: Publications

Includes brief information on plant community monitoring, air quality monitoring, and weather and climate monitoring at Scotts Bluff National Monument in Nebraska, USA in 2012.

Wallace: The Review, And Wallace: The Preview, Charles H. Smith

DLPS Faculty Publications

In this essay commemorating the one hundred year anniversary of his death, Alfred Russel Wallace (1823–1913) is remembered for his main contributions to biogeography, and pointed to as a possible source of inspiration for future work in that field. As one of the science’s “fathers,” Wallace established both methods for study and a long-lived geographical systemization of animal distribution patterns. His efforts, moreover, may yet have the potential to inspire further new studies in the subject.

Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2012 Annual Report, Isabel W. Ashton, Stephen K. Wilson, Daniel J. Swanson, Michael Prowatzke, Phil Graeve

United States National Park Service: Publications

Executive Summary

Agate Fossil Beds National Monument (AGFO) plays a vital role in protecting and managing some of the last remnants of native mixed-grass prairie in the region. The Northern Great Plains Inventory & Monitoring Network (NGPN) and Fire Ecology Program (FireEP) surveyed 12 long-term monitoring plots in Agate Fossil Beds National Monument in 2012 as part of an effort to better understand the condition of plant communities in the park. We measured plant diversity and cover, looked for the presence of exotic species that may be newly invading the park, and evaluated the amount of human and natural disturbance …

Threshold Responses Of Forest Birds To Landscape Changes Around Exurban Development, Todd R. Lookingbill, Marcela Suarez-Rubio, Scott Wilson, Peter Leimgruber

Geography and the Environment Faculty Publications

Low-density residential development (i.e., exurban development) is often embedded within a matrix of protected areas and natural amenities, raising concern about its ecological consequences. Forest-dependent species are particularly susceptible to human settlement even at low housing densities typical of exurban areas. However, few studies have examined the response of forest birds to this increasingly common form of land conversion. The aim of this study was to assess whether, how, and at what scale forest birds respond to changes in habitat due to exurban growth. We evaluated changes in habitat composition (amount) and configuration (arrangement) for forest and forest-edge species around …

An Evaluation Of Data Collected By Middle School And College-Level Students In Stream Channel Geomorphic Assessment, Martin D. Lafrenz

Geography Faculty Publications and Presentations

This project tested the accuracy and repeatability of geomorphic stream channel assessments conducted by two different middle school classes from the Walt Morey Middle School in Troutdale, OR and college students from Portland State University in Portland, OR. Each group surveyed the same three cross-sections in Fairview Creek, a tributary to the Lower Columbia River, in order to assess stream channel geometry, discharge, composition of the bed material, and water quality. The three student groups were all able to accurately document the stream channel geometry, including stream width and mean depth, indicating that these data can be successfully collected by …