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Articles 391 - 410 of 410
Full-Text Articles in Life Sciences
Life In A Pine Cone, David L. Kulhavy
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 …
Livestock As A Tool For Biodiversity In The Sagebrush Steppe, Usu Extension
Livestock As A Tool For Biodiversity In The Sagebrush Steppe, Usu Extension
All Current Publications
Biodiversity, or the variety of plant and animal species in a given location, has declined in many areas in the West. For example, woody plants, such as sagebrush and juniper now dominate many western landscapes.
Deforestation In The Tropics: Reconciling Disparities In Estimates For India, Shaily Menon, Kamaljit S. Bawa
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.
Ec98-787 Glossary Of Ecosystem Terms, Thomas G. Franti, R. Herpel, G.R. Lingle
Ec98-787 Glossary Of Ecosystem Terms, Thomas G. Franti, R. Herpel, G.R. Lingle
University of Nebraska-Lincoln Extension: Historical Materials
This extension circular contains ecosystem definitions from abiotic to wildlife refuge.
The Use Of Plot Surveys For The Study Of Ethnobotanical Knowledge: A Brunei Dusun Example, Jay H. Bernstein, Roy Ellen, Bantong Bin Antaran
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
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.
The Role Of Riparian Water Law In Protecting Biodiversity: An Indiana (Usa) Case Study, Robert L. Fischman
The Role Of Riparian Water Law In Protecting Biodiversity: An Indiana (Usa) Case Study, Robert L. Fischman
Articles by Maurer Faculty
This article discusses how the rules affecting the use of surface water ground water in a typical riparian state, Indiana, can promote the conservation biological diversity. The article first surveys the basic water laws that apply to surface water, diffused surface water, underground streams, and ground water. The rules governing the uses of these waters originate in common law property doctrines and substantially clarified by state legislation. Next the article considers state administration of water. The article examines regulatory tools and administrative opportunities control uses of water in a manner that protects biodiversity. Programs requiring permits for construction in floodplains, …
Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, Richard Stalter, Michael D. Byer, John T. Tanacredi Ph.D.
Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, Richard Stalter, Michael D. Byer, John T. Tanacredi Ph.D.
Faculty Works: CERCOM
The diversity of native plant species in urban environments is usually overlooked when biodiversity levels are considered. Inventories of native plants reveal many to be rare species surviving the harsh conditions encountered in urban ecosystems. Knowledge of their existence and an inventory of their distribution will assist in maintaining these populations. Protection strategies for rare plant species are outlined for urban National Parks.
Agenda: Biodiversity Protection: Implementation And Reform Of The Endangered Species Act, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Biodiversity Protection: Implementation And Reform Of The Endangered Species Act, University Of Colorado Boulder. Natural Resources Law Center
Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)
Conference organizers and/or faculty included University of Colorado School of Law professors Betsy Rieke, David H. Getches, Michael A. Gheleta and Charles F. Wilkinson.
All across the country--in Congress, in state legislatures and in urban and rural communities--people are discussing why we should or should not protect biodiversity and how best to do so. Since the Endangered Species Act is up for reauthorization, a variety of reform proposals are being debated. Speakers--including natural resource scholars, experts from the private and nonprofit sectors, and government officials--will examine the rationale for biodiversity protection, the legal framework of the Endangered Species Act, and …
Agenda: Challenging Federal Ownership And Management: Public Lands And Public Benefits, University Of Colorado Boulder. Natural Resources Law Center
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 …
A New Pinworm, Didelphoxyuris Thylamisis N. Gen., N. Sp. (Nematoda: Oxyurida) From Thylamys Elegans (Waterhouse, 1839) (Marsupialia: Didelphidae) In Bolivia, Scott Lyell Gardner, Jean-Pierre Hugot
A New Pinworm, Didelphoxyuris Thylamisis N. Gen., N. Sp. (Nematoda: Oxyurida) From Thylamys Elegans (Waterhouse, 1839) (Marsupialia: Didelphidae) In Bolivia, Scott Lyell Gardner, Jean-Pierre Hugot
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Didelphoxyuris thylamisis n. gen., n. sp. is described from the caecum of Thylamys elegans (Waterhouse, 1839) (Marsupialia: Didelphidae) collected in the eastern region of the Andes of Bolivia. Didelphoxyuris thylamisis n. sp. differs from the only pinworm described from marsupials in the Neotropics (Neohilgertia venusti Navone, Suriano et Pujol, 1990) in having only three oesophageal teeth, non-operculated eggs, females that are didelphic, and males that possess no preanal papillae. Several other species of pinworms have been described from marsupials in Australia, but all are characterized by possessing a buccal capsule that is strongly cuticularized with inter-radial lamellae. These structures …
Evaluation And Utilization Of Biodiversity In Triticeae For Wheat Lmprovement, A. B. Damania, J. Valkoun
Evaluation And Utilization Of Biodiversity In Triticeae For Wheat Lmprovement, A. B. Damania, J. Valkoun
Herbarium Publications
To adapt new varieties to a wide spectrum of environments breeders and farmers have emphasized the need for broadening the current narrow genetic base of modern varieties of important cereal crops such as wheat and barley. In response to this need, several thousand samples of indigenously cultivated Triticeae species and their wild relatives have been collected from the centers of diversity. However, gene bank collections are of little use if they are not evaluated and the information disseminated widely. Evaluation is essentially the link between conservation and use. Some of the collected material has been evaluated at the International Center …
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon Tucker, Richard Mitchell
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon Tucker, Richard Mitchell
Faculty Research & Creative Activity
A lowland, virgin white pine-hemlock stand and associated old-growth habitats were studied at Pack Forest Preserve, Warren County, NY. An area of 48.1 acres, interrupted only by nature trails, has white pines up to 58 inches in diameter, and supports 355 native plant species-an unexpectedly high number, considering its location in the climatically severe Adirondack Mountains. This minimally disturbed old-growth forest and its associated wetlands are not only diverse, but essentially weed-free, making them ideal for future ecological research, botanical teaching and monitoring activities.
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon C. Tucker, Richard S. Mitchell
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon C. Tucker, Richard S. Mitchell
Faculty Research & Creative Activity
A lowland, virgin white pine-hemlock stand and associated old-growth habitats were studied at Pack Forest Preserve, Warren County, NY. An area of 48.1 acres, interrupted only by nature trails, has white pines up to 58 inches in diameter, and supports 355 native plant species-an unexpectedly high number, considering its location in the climatically severe Adirondack Mountains. This minimally disturbed old-growth forest and its associated wetlands are not only diverse, but essentially weed-free, making them ideal for future ecological research, botanical teaching and monitoring activities.
Parasites As Probes For Biodiversity, Scott Lyell Gardner, Mariel L. Campbell
Parasites As Probes For Biodiversity, Scott Lyell Gardner, Mariel L. Campbell
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Cestodes of the genus Linstowia, parasitic in marsupials, show patterns of coevolution and ancient historical-ecological connections. Correlated with the breakup of the austral landmasses (Gondwanaland) of the Neotropical and Australian regions from the Antarctic continent, the age of this host-parasite community is estimated to be between 60 and 70 million years old. Based on the data from the survey of parasites of mammals from throughout Bolivia and from the phylogenetic analysis of the cestodes, we urge the planners of biodiversity preserves in the neotropics to consider the Yungas of Bolivia as a region that supports an ancient ecological community …
The Plight Of Cranes: A Case Study For Conserving Biodiversity, J. Christopher Haney, Mark E. Eiswerth
The Plight Of Cranes: A Case Study For Conserving Biodiversity, J. Christopher Haney, Mark E. Eiswerth
Proceedings of the North American Crane Workshop
Cranes provide an exemplary case for evaluating conservation policy because (1) they are a charismatic group with high public visibility, (2) as migratory vertebrates they provide an umbrella for the protection of aquatic habitats and a wider set of species, (3) they are a widely-distributed avian family, consequently protection efforts have favored international cooperation, (4) genetic and taxonomic relationships have been studied, and (5) populations of at least 7 crane species are threatened, endangered, or otherwise considered at direct risk. We use comparisons among the world's cranes to show how biogeographic, taxonomic, and genetic data bases can be linked for …
Biological Diversity And Environmental Protection: Authorities To Reduce Risk, Robert L. Fischman
Biological Diversity And Environmental Protection: Authorities To Reduce Risk, Robert L. Fischman
Articles by Maurer Faculty
No abstract provided.
Agenda: Moving The West's Water To New Uses: Winners And Losers, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Moving The West's Water To New Uses: Winners And Losers, University Of Colorado Boulder. Natural Resources Law Center
Moving the West's Water to New Uses: Winners and Losers (Summer Conference, June 6-8)
Conference organizers and/or faculty included University of Colorado Law School professors Lawrence J. MacDonnell and Mark Squillace.
Moving the West's Water to New Uses: Winners and Losers will be the theme for this year's water conference, June 6-8 at the Law School in Boulder. The conference will consider the changing demands for water in the West and the need to reallocate a portion of the existing uses of water to new uses.
The first day will provide the background by looking at the most likely sources of water to meet these demands, including agriculture, federal water projects, interstate transfers, and …
Freshwater Fishes Of Shipstern Nature Reserve, Caspar F. A. Bijleveld
Freshwater Fishes Of Shipstern Nature Reserve, Caspar F. A. Bijleveld
Physiology Faculty Research Publications
A survey of fishes in and around Shipstern Nature Reserve in Northern Belize, Central America, was carried out over a period of eight months, from February to September 1990. Its purpose was to establish a preliminary list of the fishes of Shipstern Nature Reserve, including descriptions, distribution and collecting data and additionally to describe some of the habitats in which the fishes were found. This study focuses on fishes considered to be freshwater species. These occurred for the greater part in brackish habitats. Nevertheless, a few fish considered as marine species were caught in the waters of the reserve and …
Animal-Sediment Relations In A Tropical Lagoon: Discovery Bay, Jamaica, Robert C. Aller, Richard E. Dodge
Animal-Sediment Relations In A Tropical Lagoon: Discovery Bay, Jamaica, Robert C. Aller, Richard E. Dodge
Marine & Environmental Sciences Faculty Articles
The distribution of many macrobenthic species in the back-reef lagoon of Discovery Bay, Jamaica can be related to a gradient in bottom stability. This gradient is defined by increasing rates of biogenic reworking and sediment resuspension in the western part of the lagoon. Infaunal diversity and coral growth decrease in the western, unstable areas. The infauna of the carbonate sand consists mainly of deposit feeders. In the western lagoon, the feeding activities of this group result in high biogenic reworking rates (up to 6-7 cm/week) producing loose surface sediment easily resuspended by waves. A maximum, mean resuspension rate of 19 …