Digital Commons Network^™

Beyond Hunting: Increasing Options For Effective Wildlife Management In The National Park System, Margaret A. Wild, Therese Johnson, Michael Mayer, Gary Johnston

United States National Park Service: Publications

The National Park Service (NPS) goal is to maintain natural processes (NPS Management Policies 2006, 4.4.2: “Whenever possible, natural processes will be relied upon to maintain native plant and animal species and influence natural fluctuations in populations of these species”). As mentioned, animal populations can be expected to fluctuate under natural conditions. Some would argue that animal overabundance in parks is just part of this natural fluctuation, and this may be the case in some situations. However, if a system is disturbed, flux may be greater—for example, when predators are removed and populations of prey are released from …

A Comparison Of Wildlife Management In Mid-Size Parks In South Africa And The United States, Daniel S. Licht, Rob Slotow, Joshua Millspaugh

United States National Park Service: Publications

In many parts of the world, national parks are the last remaining wild areas and the best hope for conserving native wildlife and natural processes. This is true in the United States and in South Africa, where both countries are viewed as leaders in wildlife conservation. However, both countries face similar threats and issues when attempting to conserve native grassland wildlife, especially large fauna. For example, many native grassland ungulates historically traveled great distances in response to changing environmental conditions, yet landscape fragmentation and societal concerns (e.g., impacts on cropland) now prevent largescale movements. Hence, parks in both countries often …

Grizzly Bear Density In Glacier National Park, Montana, Katherine C. Kendall, Jeffrey Stetz, David A. Roon, Lisette P. Waits, John Boulanger, David Paetkau

United States National Park Service: Publications

We present the first rigorous estimate of grizzly bear (Ursus arctos) population density and distribution in and around Glacier National Park (GNP), Montana, USA. We used genetic analysis to identify individual bears from hair samples collected via 2 concurrent sampling methods: 1) systematically distributed, baited, barbed-wire hair traps and 2) unbaited bear rub trees found along trails. We used Huggins closed mixture models in Program MARK to estimate total population size and developed a method to account for heterogeneity caused by unequal access to rub trees. We corrected our estimate for lack of geographic closure using a new …

Multiple Data Sources Improve Dna-Based Mark–Recapture Population Estimates Of Grizzly Bears, John Boulanger, Katherine C. Kendall, Jeffrey B. Stetz, David A. Roon, Lisette P. Waits, David Paetkau

United States National Park Service: Publications

A fundamental challenge to estimating population size with mark–recapture methods is heterogeneous capture probabilities and subsequent bias of population estimates. Confronting this problem usually requires substantial sampling effort that can be difficult to achieve for some species, such as carnivores. We developed a methodology that uses two data sources to deal with heterogeneity and applied this to DNA mark–recapture data from grizzly bears (Ursus arctos). We improved population estimates by incorporating additional DNA ‘‘captures’’ of grizzly bears obtained by collecting hair from unbaited bear rub trees concurrently with baited, grid-based, hair snag sampling. We consider a Lincoln-Petersen estimator …

Agate Fossil Beds National Monument Fish Inventory, Mark A. Pegg, Kevin L. Pope

United States National Park Service: Publications

The Niobrara River flows through Agate Fossil Beds National Monument (AGFO) maintaining about 18-km of riverine habitat. The lack of large-scale human alterations like impoundment and channelization to the Niobrara River within AGFO make this stretch of river an ideal location to support native fish communities. However, concern for native fishes in the Niobrara River in and around AGFO has grown because non-native brown trout Salmo trutta and rainbow trout Oncorhynchus mykiss have been actively stocked in the region. Other species like largemouth bass Micropterus salmoides, bluegill Lepomis macrochirus, and northern pike Esox lucius may have also established …

Historic Resource Study: Agate Fossil Beds National Monument, Gail Evans-Hatch

United States National Park Service: Publications

As steward of many of the United States' most important cultural and natural resources, the National Park Service (NPS) is required to create background documents along with specific plans aimed at managing and protecting these resources for the enjoyment of present and future generations. An important aspect of managing cultural landscapes requires knowing the past of those landscapes. A historic resource study (HRS) project involves researching and presenting the history of a park. A HRS also attempts to identify and evaluate the importance of all cultural resources within that park. Researching and presenting the broader historical context of a park …

Volume 18, No. 4

Thinking: The Journal of Philosophy for Children

Bruning, Barbara and Barbara Weber. “Philosophizing with Children in Germany: People, Projects and Pursuits.” 6­-9.

Daniel, Marie­France. “Learning to Philosophize: Positive Impacts and Conditions for Implementation, A Synthesis of 10 Years of Research (1995­-2005).” 36­-48.

Dobashi, Takara & Eva Marsal. “Replication of a Philosophical Experiment Based on the Riddle of the Sphinx: A Comparison of the Anthropological Concepts of Japanese and German Primary School Children.” 10-­18.

Marsal, Eva. “Didactic Implementation of Ekkehard Martens’ Five Finger Model.” 19­22.

Martens, Ekkehard. “Can Animals Think? The Five Most Important Methods of Philosophizing with Children.” 32-­35.

Shea, Peter. “Thinking in Stories: Review of Richard …

The Effects Of Fire On Beach Grass (Ammophila Breviligulata) At Apostle Islands National Lakeshore, Peggy Burkman

United States National Park Service: Publications

Unique land features at Apostle Islands National Lakeshore include rocky cliff faces, clay banks, sandscapes, and bogs. Clay banks contain a high percentage of sand which is eroded rapidly and transported by long shore currents to form a variety of coastal sand features or sandscapes. Sandscapes include several unique landforms such as barrier beaches (Julian Bay on Stockton Island) and spits (Long Island); cuspate forelands, which are triangular- shaped seaward extentions (Raspberry and South Twin islands); tombolos, which are sand or gravel bars stretching from an island to the mainland or another island; a double tombolo (Stockton Island); and sand …

Developing Integrated Assessments For National Capital Region Network Parks: An Example From Rock Creek Park, Lisa N. Florkowski, William C. Dennison, Todd R. Lookingbill, Tim J.B. Carruthers, Jane M. Hawkey, Shawn L. Carter

United States National Park Service: Publications

The National Capital Region Network (NCRN) contains 11 parks within the District of Columbia, Maryland, Virginia, and West Virginia (Figure 1a): Antietam National Battlefield (ANTI), Catoctin Mountain Park (CATO), Chesapeake and Ohio Canal National Historical Park (CHOH), George Washington Memorial Parkway (GWMP), Harpers Ferry National Historical Park (HAFE), Manassas National Battlefield Park (MANA), Monocacy National Battlefield (MONO), National Capital Parks–East (NACE), Prince William Forest Park (PRWI), Rock Creek Park (ROCR), and Wolf Trap National Park for the Performing Arts (WOTR). These parks are some of the most visited in the National Park Service (NPS) system due to the urban context …

Academic Data Series, 2007-08 Edition, Office Of The Controller, Wright State University

Academic Data Series

A compilation of statistics extracted from the University's Banner System and Ohio Department of Higher Education resources for 2007-2008.

Collaborative Ro1 With Ncbo Semantics And Services Enabled Problem Solving Environment For Trypanosoma Cruzi, Amit P. Sheth, Rick Tarleton, Prashant Doshi, Mark Musen, Natasha Noy, Satya S. Sahoo, Daniel B. Weatherly

Kno.e.sis Publications

No abstract provided.

Semantic Sensor Web, Amit P. Sheth, Satya S. Sahoo

Kno.e.sis Publications

Sensors are distributed across the globe leading to an avalanche of data about our environment. It is possible today to utilize networks of sensors to detect and identify a multitude of observations, from simple phenomena to complex events and situations. The lack of integration and communication between these networks, however, often isolates important data streams and intensifies the existing problem of too much data and not enough knowledge. With a view to addressing this problem, the semantic sensor Web (SSW) proposes that sensor data be annotated with semantic metadata that will both increase interoperability and provide contextual information essential for …

Semantic Provenance For Escience: Managing The Deluge Of Scientific Data, Satya S. Sahoo, Amit P. Sheth, Cory Andrew Henson

Kno.e.sis Publications

Provenance information in eScience is metadata that's critical to effectively manage the exponentially increasing volumes of scientific data from industrial-scale experiment protocols. Semantic provenance, based on domain-specific provenance ontologies, lets software applications unambiguously interpret data in the correct context. The semantic provenance framework for eScience data comprises expressive provenance information and domain-specific provenance ontologies and applies this information to data management. The authors' "two degrees of separation" approach advocates the creation of high-quality provenance information using specialized services. In contrast to workflow engines generating provenance information as a core functionality, the specialized provenance services are integrated into a scientific workflow …

John Kirk Townsend: Collector Of Audubon's Western Birds And Mammals, By Barbara And Richard Mearns, George A. Jobanek

Western Birds

No abstract provided.

Storm-Petrels Of The Eastern Pacific Ocean: Species Assembly And Diversity Along Marine Habitat Gradients, By Larry B. Spear And David G. Ainley, Jan Hodder

Western Birds

No abstract provided.

Bird Voices Of Northern California: An Audio Guide To Bird Identification, By Ron Levalley And David Fix, Steve N. G. Howell

Western Birds

No abstract provided.

Wfo Publications Available Now, Western Birds

Western Birds

No abstract provided.

Terrestrial Foot-Paddling By A Glaucous-Winged Gull, Ryan P. O'Donnell

Western Birds

No abstract provided.

First Records Of The Brown Creeper Breeding Along The Middle Rio Grande, Jean-Luc E. Cartron, David L. Hawksworth, Deborah M. Finch

Western Birds

No abstract provided.

Habitat Fragmentation And Scrub-Specialist Birds: San Diego Fragments Revisited, Autumn R. Sartain, Allison C. Alberts

Western Birds

No abstract provided.

Breeding Behavior And Dispersal Of Radio-Marked California Clapper Rails, Michael L. Casazza, Cory T. Overton, John Y. Takekawa, Tobias Rohmer, Kenneth Navarre

Western Birds

No abstract provided.

Nest Spacing In Elegant Terns: Hexagonal Packing Revisited, Charles T. Collins, Michael D. Taylor

Western Birds

No abstract provided.

Great Gray Owls Nesting In Fresno County, California, David E. Quady

Western Birds

No abstract provided.

Rare Birds Of California, By Robert A. Hamilton, Michael A. Patten, And Richard A. Erickson (Editors), David Fix

Western Birds

No abstract provided.

Black Skimmer Occurrences In New Mexico, Including A High Elevation Record, Sartor O. Williams Iii, William H. Howe

Western Birds

No abstract provided.

36_1_Masthead.Pdf, Marine Ornithology

Marine Ornithology

No abstract provided.

Reproduction And Immune Homeostasis In A Long-Lived Seabird, The Nazca Booby (Sula Granti), Victor Apanius, Mark A. Westbrock, David J. Anderson

Ornithological Monographs

The evolution of longevity requires that the marginal investment in selfmaintenance at the expense of reproductive effort is favored by realizing a longer reproductive lifespan. This can occur when extrinsic mortality factors (weather, predators, etc.) are less important than intrinsic mortality factors, such as the physiological cost of reproduction. Long-lived pelagic seabirds have low annual reproductive output and prolonged offspring growth periods that are thought to have evolved to accommodate marine resource variability. The life-history theory of senescence predicts that these same taxa should minimize per diem reproductive costs and shift effects of resource variability to the offspring. To address …

Inside Front Cover, Marine Ornithology

Marine Ornithology

No abstract provided.

36_2_Masthead.Pdf, Marine Ornithology

Marine Ornithology

No abstract provided.

Inside Back Cover, Marine Ornithology

Marine Ornithology

No abstract provided.