Forest Sciences Commons^™

The Influence Of Vertical And Horizontal Habitat Structure On Nationwide Patterns Of Avian Biodiversity, Patrick D. Culbert, Volker C. Radeloff, Curtis H. Flather, Josef M. Kellndorfer, Chadwick D. Rittenhouse, Anna M. Pidgeon

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

With limited resources for habitat conservation, the accurate identification of high-value avian habitat is crucial. Habitat structure affects avian biodiversity but is difficult to quantify over broad extents. Our goal was to identify which measures of vertical and horizontal habitat structure are most strongly related to patterns of avian biodiversity across the conterminous United States and to determine whether new measures of vertical structure are complementary to existing, primarily horizontal, measures. For 2,546 North American Breeding Bird Survey routes across the conterminous United States, we calculated canopy height and biomass from the National Biomass and Carbon Dataset (NBCD) as measures …

Modeling Broad-Scale Patterns Of Avian Species Richness Across The Midwestern United States With Measures Of Satellite Image Texture, Patrick D. Culbert, Volker C. Radeloff, Véronique St-Louis, Curtis H. Flather, Chadwick D. Rittenhouse, Thomas P. Albright, Anna M. Pidgeon

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Avian biodiversity is threatened, and in order to prioritize limited conservation resources and conduct effective conservation planning a better understanding of avian species richness patterns is needed. The use of image texture measures, as a proxy for the spatial structure of land cover and vegetation, has proven useful in explaining patterns of avian abundance and species richness. However, prior studies that modeled habitat with texture measures were conducted over small geographical extents and typically focused on a single habitat type. Our goal was to evaluate the performance of texture measures over broad spatial extents and across multiple habitat types with …

Effects Of Experimental Nitrogen Additions On Plant Diversity In Tropical Forests Of Contrasting Disturbance Regimes In Southern China, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Guirui Yu, Wei Zhang, Yunting Fang, Juan Huang

Biological Sciences Faculty Research

Responses of understory plant diversity to nitrogen (N) additions were investigated in reforested forests of contrasting disturbance regimes in southern China from 2003 to 2008: disturbed forest (withharvesting of understory vegetation and litter) and rehabilitated forest (without harvesting). Experimental additions of N were administered as the following treatments: Control, 50 kg N ha1yr1, and 100kg N ha1yr1. Nitrogen additions did not significantly affect understory plant richness, density,and cover in the disturbed forest. Similarly, no significant response was found for canopy closure in thisforest. In the rehabilitated forest, species richness and density showed no significant response to Nadditions; however, understory cover …

Exploration Of Genotype Specific Fingerprinting Of Nigella Sativa L. Using Rapd Markers, Muhammad Sajjad Iqbal, Shahid Nadeem, Shahid Mehboob, Abdul Ghafoor, Muhammad Ibrahim Rajoka, Afsari Sharif Qureshi, Bushra Niaz

Turkish Journal of Agriculture and Forestry

Nigella sativa L. has industrial, cosmetic, and pharmaceutical uses but has not been adequately characterized in Pakistan. This investigation was carried out to explore genotype specific fingerprinting of 32 N. sativa L. genotypes based on randomly amplified polymorphic DNA markers. From 58 random primers used, 15 primers generated 249 reproducible and scorable amplification products across all the genotypes, out of which 164 (66%) fragments were polymorphic revealing a high level of polymorphism among these genotypes. The proportion of common bands was low (34%). The size of the amplification products on agarose gels ranged between 0.5 and 10.0 kb. In 13 …

Heat Waves Measured With Modis Land Surface Temperature Data Predict Changes In Avian Community Structure, Thomas P. Albright, Anna M. Pidgeon, Chadwick D. Rittenhouse, Murray K. Clayton, Curtis H. Flather, Patrick D. Culbert, Volker C. Radeloff

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Heat waves are expected to become more frequent and severe as climate changes, with unknown consequences for biodiversity. We sought to identify ecologically-relevant broad-scale indicators of heat waves based on MODIS land surface temperature (LST) and interpolated air temperature data and assess their associations with avian community structure. Specifically, we asked which data source, time periods, and heat wave indices best predicted changes in avian abundance and species richness. Using mixed effects models, we analyzed associations between these indices and data from the North American Breeding Bird Survey in the central United States between 2000 and 2007 in four ecoregions …

Carrying Capacity For Species Richness As A Context For Conservation: A Case Study Of North American Breeding Birds, Andrew J. Hansen, Linda Bowers Phillips, Curtis H. Flather, Jim Robinson-Cox

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Aim To demonstrate that the concept of carrying capacity for species richness (S_K) is highly relevant to the conservation of biodiversity, and to estimate the spatial pattern of S_K for native landbirds as a basis for conservation planning.

Location North America.

Methods We evaluated the leading hypotheses on biophysical factors affecting species richness for Breeding Bird Survey routes from areas with little influence of human activities.We then derived a best model based on information theory, and used this model to extrapolate SK across North America based on the biophysical predictor variables. The predictor variables included the …

Slides: Grazing On The Public Lands, William G. Myers Iii

The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)

Presenter: William G. Myers III, Partner, Holland & Hart; former Solicitor of the U.S. Department of the Interior (Boise, ID)

8 slides

Relationships Between Herbaceous Diversity And Biomass In Two Habitats In Arid Mediterranean Rangeland, Mohammad N. Alhamad, Brian P. Oswald, Mohammad M. Bataineh, Mohammad A. Alrababah, Mohammad M. Gharaibeh

Faculty Publications

Plant diversity patterns vary across the landscape. This study was conducted to answer the question: What is the pattern of species diversity (α and β) along an abstract productivity/cover gradient at two topographical positions (Wadi (a depression with overland flow) and hilltop) of a Mediterranean herbaceous plant community in Jordan? Results indicated that the less productive hilltop localities exhibited higher species richness than the more productive Wadi localities. Species richness exhibited a unimodal relationship with aboveground biomass within Wadis whereas a positive linear relationship was revealed for hilltops. Within Wadis, abundant species did not show a significant relationship with productivity …

Slides: Groundwater Declines, Climate Change And Approaches To Adaptation, Katharine Jacobs

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Katharine Jacobs, Director of the Arizona Water Institute, University of Arizona

37 slides

Does Moose Browsing Threaten European Aspen Regeneration In Koli National Park, Finland?, Sauli Harkonen, Kalle Eerikainen, Riikka Lahteenmaki, Risto Heikkila

Aspen Bibliography

Large European aspen (Populus tremula) trees host hundreds of species of which many are threatened species of conifer-dominated, old-growth boreal forests. Aspen is also one of the deciduous tree species most intensively used by moose (Alces alces) in Finland. In conservation areas aspen regeneration is facilitated by large-scale disturbances, especially fires and windstorms, and also by mortality of individual trees and small-scale disturbances that create small openings. These aggregated patches of young aspens provide high quality feeding sites for moose. In Finland, it has been hypothesized that intense browsing pressure by moose on aspen may prevent new aspen cohorts from …

The Ecological Significance Of The Herbaceous Layer In Temperate Forest Ecosystems, Frank S. Gilliam

Biological Sciences Faculty Research

Despite a growing awareness that the herbaceous layer serves a special role in maintaining the structure and function of forests, this stratum remainsan underappreciated aspect of forest ecosystems. In this article I review and synthesize information concerning the herb layer’s structure,composition, and dynamics to emphasize its role as an integral component of forest ecosystems. Because species diversity is highest in the herb layeramong all forest strata, forest biodiversity is largely a function of the herb-layer community. Competitive interactions within the herb layer candetermine the initial success of plants occupying higher strata, including the regeneration of dominant overstory tree species. Furthermore, …

Saving Special Places: Trends And Challenges With Protecting Public Lands [Outline], Robert B. Keiter

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

7 pages.

Includes bibliographical references

"Robert B. Keiter, Wallace Stegner Professor of Law, University of Utah, S.J. Quinney College of Law"

Slides: The Future Public Law Of Private Ecosystems, J. B. Ruhl

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

Presenter: J.B. Ruhl, Florida State University Law School

18 slides

Agenda: The Future Of Natural Resources Law And Policy, University Of Colorado Boulder. Natural Resources Law Center, Rocky Mountain Mineral Law Foundation

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

The Natural Resources Law Center's 25th Anniversary Conference and Natural Resources Law Teachers 14th Biennial Institute provided an opportunity for some of the best natural resources lawyers to discuss future trends in the field. The conference focused on the larger, cross-cutting issues affecting natural resources policy. Initial discussions concerned the declining role of scientific resource management due to the increased inclusion of economic-cost benefit analysis and public participation in the decision-making process. The effectiveness of this approach was questioned particularly in the case of non-market goods such as the polar bear. Other participants promoted the importance of public participation and …

Satellite Image Processing For Biodiversity Conservation And Environmental Modeling In Kyrgyz Republic National Park, Galina N. Fet

Theses, Dissertations and Capstones

There is a need for extensive surveys of living organisms at a global scale; digital data exchange and storage is an essential part of such studies. Biodiversity inventory of fungi, which play an essential role in the health of the mountainous conifer forests of a developing country – Kyrgyz Republic, was linked to the vegetation classification produced from the high-resolution satellite imagery. Terra ASTER and SRTM90 imagery was used as a base map for the ecosystem modeling of the species and habitat distribution and for the three-dimensional representation, especially valuable for the mountainous landscapes of the Ala Archa National Park. …

The Complex Links Between Governance And Biodiversity, C. Barrett, C. Gibson, B. Hoffman, Mathew D. Mccubbins

Faculty Scholarship

We argue that two problems weaken the claims of those who link corruption and the exploitation of natural resources. The first is conceptual. Studies that use national level indicators of corruption fail to note that corruption comes in many forms, at multiple levels, and may or may not affect resource use. Without a clear causal model of the mechanism by which corruption affects resources, one should treat with caution any estimated relationship between corruption and the state of natural resources. The second problem is methodological: Simple models linking corruption measures and natural resource use typically do not account for other …

Slides: Bpi Best Practices Initiative: A Collaborative Approach To Leadership For Improving Management Practices On The Working Landscape, Peter Zimmerman

Best Management Practices and Adaptive Management in Oil and Gas Development (May 12-13)

Presenter: Peter Zimmerman, Canadian Parks and Wilderness Society

19 slides

Conservation And Restoration Of Pine Forest Genetic Resources In México, C. Sáenz-Romero, Amy E. Snively, R. Lindig-Cisneros

Student Published Works

Deforestation rates in México are about 670,000 ha/year. This threatens the richness of forest genetic resources in México, causing the disappearance of locally adapted populations and rare and endangered pine species. México is one of the six megadiverse countries in the world, with half of the world’s Pinus species. Pinus is one of the most economically and ecologically important forest genera in México. We suggest that delineation of seed zones and the establishment of a network of Forest Genetic Resource Conservation Units (FGRCUs), linked with forest management and ecological restoration programs will protect this valuable resource. We estimate that FGRCUs …

Life In A Pine Cone, David L. Kulhavy

Faculty Publications

This exercise focuses on a little-known microhabitat -- the pine cone. A pine cone's primary function is, of course, reproduction ... housing the seeds of the next generation of conifer trees. However, pine cones are also the basis of a food web that provides both resources and living space for a wide variety of small arthropod species. The procedure outlined below is designed to examine this microhabitat and compare its community diversity among different species of conifers and habitats.

The exercise is based on a 1985 paper, Life in a Pine Cone, by David L. Kulhavy, Robert S. Baldridge and …

Deforestation In The Tropics: Reconciling Disparities In Estimates For India, Shaily Menon, Kamaljit S. Bawa

Peer Reviewed Publications

Here we examine recent disparate estimates of deforestation obtained for India. We discuss the sources of disparity and the implications of inaccurate estimates and suggest ways in which future attempts at estimating deforestation might reconcile the disparity. Despite the importance of deforestation and its consequences, no attempt has been made to reconcile the different estimates obtained for India.

The Use Of Plot Surveys For The Study Of Ethnobotanical Knowledge: A Brunei Dusun Example, Jay H. Bernstein, Roy Ellen, Bantong Bin Antaran

Publications and Research

This paper describes a technique for using plot surveys to measure individual informants' ethnobotanical knowledge of forests, as applied to the Dusun community of Merimbun in Brunei. Two knowledgeable but non-literate Dusun informants enumerated marked plots of both recent and old secondary growth mixed dipterocarp forest near the village. They were able to provide names (other than life-forms or the most general basic and intermediate categories) for 86-97% of species growing in the plots. Between 152 and 170 plant names were elicited by the surveys. In all cases, about 88% of the names were at the basic naming level and …

Grounds For Argument: Local Understandings, Science, And Global Processes In Special Forest Products Harvesting, Thomas Love, Eric Jones

Faculty Publications

In posing the question "Where are the pickers?", Love and Jones suggest that the shifting paradigm in forestry is real and that academia is not leading the shift. Love and Jones illustrate the emergence of special forest products' legitimacy in competing uses of forests with their experience and research in mushroom harvesting in the Pacific Northwest.

Agenda: Challenging Federal Ownership And Management: Public Lands And Public Benefits, University Of Colorado Boulder. Natural Resources Law Center

Challenging Federal Ownership and Management: Public Lands and Public Benefits (October 11-13)

Conference organizers, speakers and/or moderators included University of Colorado School of Law professors David H. Getches, Michael A. Gheleta, Teresa Rice, Elizabeth Ann (Betsy) Rieke and Charles F. Wilkinson.

In the face of numerous proposals for privatizing, marketing, and changing the management of public lands, the Natural Resources Law Center will hold its third annual fall public lands conference October 11-13, at the CU School of Law in Boulder.

A panel of public land users and neighbors, including timber, grazing, mining, recreation, and environmental interests, will address current discontent with public land policy and management. There will also be discussion …

Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman

Maine Collection

Rare Vascular Plants of Maine : A Critical Areas Program Report

Based on Rare Vascular Maine Plants (1978) with Additional Herbarium Data and Rare Plants Information by L.M. Eastman.

Introduction, Criteria, Annotated Rare Plant List, Species Accounts, Additional Herbarium Data, County & Town Index Editing by Susan C. Gawler.

Executive Department, State Planning Office, 189 State Street, Augusta, Maine, 04333 (June 1981).

Contents: Acknowledgements / List of Tables / List of Figures / Part One: Introduction / Part Two: List of the Rare Vascular Plants of Maine / Part Three: Species Accounts / Part Four: Subspecific Taxa / Appendices / …