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Full-Text Articles in Natural Resource Economics

Terrestrial Natural Communities Of Nebraska - Version I, Gerry Steinauer, Steven B. Rolfsmeier Oct 1997

Terrestrial Natural Communities Of Nebraska - Version I, Gerry Steinauer, Steven B. Rolfsmeier

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The Nebraska Natural Heritage Program has been collecting information and data including published literature, field observations and vegetation plot data over the last 10 years of development of Nebraska’s natural community classification. The classification contains 27 wetland and 36 upland communities including forest, woodland, shrubland, herbaceous, and sparsely vegetated (e.g. rock outcrop) types. The community types were distinguished primarily on plant species composition and to a lesser extent on soils, hydrology and geographic location. The classification contains descriptions of each community type that include dominant species, soils, range, and other ecological information. The classification is designed to be flexible enough …


Idealwise Algebraic Independence For Elements Of The Completion Of A Local Domain, William Heinzer, Christel Rotthaus, Sylvia Wiegand Jul 1997

Idealwise Algebraic Independence For Elements Of The Completion Of A Local Domain, William Heinzer, Christel Rotthaus, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Over the past forty years many examples in commutative algebra have been constructed using the following principle: Let k be a field, let S k[xl Xn]x,xn) be a localized polynomial ring over k, and let a be an ideal in the completion S of S such that the associated prims of a are in the generic formal fiber of S; that is, p N S (0) for each p Ass(S/a):. Then S embeds in S/a, the fraction field Q(S) of S embeds in the fraction ring of S/a, and for certain choices of a, the intersection D Q(S) f3 (S/a) …


1997 Rapid Ecological Assessment Northern Great Plains Steppe Ecoregion: Western And Central South Dakota, Northwestern Nebraska, Eastern Wyoming, A Final Report, Terri Hildebrand Jan 1997

1997 Rapid Ecological Assessment Northern Great Plains Steppe Ecoregion: Western And Central South Dakota, Northwestern Nebraska, Eastern Wyoming, A Final Report, Terri Hildebrand

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

In an effort to gain a more complete understanding of existing vegetative communities of the Northern Great Plains Steppe Ecoregion, rapid ecological assessment was undertaken throughout the ecoregion during the field season of 1997. Field office personnel of The Nature Conservancy and private contractors evaluated previously delineated regions in accordance with methodology determined in May of 1997. The following document presents results of the rapid ecological assessments performed by Hildebrand Contracting. The purpose of this document is to provide The Nature Conservancy with information to help determine the vegetative features of regions sampled. The specific areas and boundaries for evaluation …


Fisheries Research Report No 105 - The Western Rock Lobster Fishery 1986/87 To 1990/91, C. F. Chubb, E. H. Barker, R. S. Brown Jul 1996

Fisheries Research Report No 105 - The Western Rock Lobster Fishery 1986/87 To 1990/91, C. F. Chubb, E. H. Barker, R. S. Brown

Fisheries Research Reports

This report on the western rock lobster (Panulirus cygnus, George 1962) fishery covers the five seasons 1986/87 to 1990/91 and is the latest in a series of reports on the State's largest and most valuable fishery. While more detailed data bases exist, these reports form a historical record of basic data for use by both industry and research workers, now and in the future. Catch and fishing effort in the seasons (1986/87 to 1990/91) varied between 8500 and 12300 tonnes and 11.3 and 12.8 million pot lifts respectively. This report provides detail on the distribution of catches and fishing effort; …


Reform Of The Endangered Species Act: Overview Of Administrative Reforms [Congressional Hearing Material Submitted By Bruce E. Babbitt, Secretary, Department Of Interior], Dinah Bear Jun 1996

Reform Of The Endangered Species Act: Overview Of Administrative Reforms [Congressional Hearing Material Submitted By Bruce E. Babbitt, Secretary, Department Of Interior], Dinah Bear

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

31 pages.


A Tribal Perspective On Esa Reform, Ted Strong Jun 1996

A Tribal Perspective On Esa Reform, Ted Strong

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

4 pages.


How The Regulated Community Views Regulation To Protect Living Resources: The Endangered Species Act, Biological Diversity, And Ecosystem Management, Steven P. Quarles Jun 1996

How The Regulated Community Views Regulation To Protect Living Resources: The Endangered Species Act, Biological Diversity, And Ecosystem Management, Steven P. Quarles

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

21 pages.

Contains footnotes.


The Endangered Species: The Urban Water Utility Perspective, Chips Barry Jun 1996

The Endangered Species: The Urban Water Utility Perspective, Chips Barry

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

24 pages.


Upper Colorado River Fish: A Recovery Program That Is Working – Myth Or Reality?, James S. Lochhead Jun 1996

Upper Colorado River Fish: A Recovery Program That Is Working – Myth Or Reality?, James S. Lochhead

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

24 pages (includes 1 map).

Contains 2 pages of references.


A Comparison: Lessons From The Columbia Basin And The Upper Colorado Basin Fish Recovery Efforts, Mary Christina Wood Jun 1996

A Comparison: Lessons From The Columbia Basin And The Upper Colorado Basin Fish Recovery Efforts, Mary Christina Wood

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

47 pages.

Contains 5 pages of references.


The Esa, Water Rights, And Regulatory Takings, Barton H. Thompson, Jr. Jun 1996

The Esa, Water Rights, And Regulatory Takings, Barton H. Thompson, Jr.

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

28 pages.

Contains 2 pages of references.


The Endangered Species Act—Economic Impacts: The Perception And The Numbers, Jon A. Souder Jun 1996

The Endangered Species Act—Economic Impacts: The Perception And The Numbers, Jon A. Souder

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

13 pages (includes illustrations).

Contains 2 pages of references.


Water Rights, Contract Rights, And The Endangered Species Act, Brian E. Gray Jun 1996

Water Rights, Contract Rights, And The Endangered Species Act, Brian E. Gray

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

12 pages.

Contains references.


The Endangered Species Act: Tramping On Tribal Rights?, Robert S. Pelcyger Jun 1996

The Endangered Species Act: Tramping On Tribal Rights?, Robert S. Pelcyger

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

32 pages.

Contains footnotes.


Habitat Based, Multi-Species Hcps: Lessons From The Northwest, James A. Kraft Jun 1996

Habitat Based, Multi-Species Hcps: Lessons From The Northwest, James A. Kraft

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

9 pages.


Columbia River Salmon: Are Any Of The Esa Tools Adequate For The Job?, John M. Volkman Jun 1996

Columbia River Salmon: Are Any Of The Esa Tools Adequate For The Job?, John M. Volkman

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

32 pages.

Contains footnotes.


The Enigma Of The Blind Salamander And Groundwater Pumping: Lessons From The Edwards Aquifer, Texas, Charles R. Shockey Jun 1996

The Enigma Of The Blind Salamander And Groundwater Pumping: Lessons From The Edwards Aquifer, Texas, Charles R. Shockey

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

39 pages (includes illustrations and maps).

Contains footnotes.


Landscape Scale Habitat Conservation Plans: The California Experience, Lindell L. Marsh Jun 1996

Landscape Scale Habitat Conservation Plans: The California Experience, Lindell L. Marsh

Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)

24 pages.

Contains 3 pages of references.


Agenda: Biodiversity Protection: Implementation And Reform Of The Endangered Species Act, University Of Colorado Boulder. Natural Resources Law Center Jun 1996

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 …


Inventory For Endangered, Threatened, And Rare Plant And Animal Species Within The Floodplain Corridor Of The Middle Loup River Basin, Nebraska Natural Heritage Program Jan 1996

Inventory For Endangered, Threatened, And Rare Plant And Animal Species Within The Floodplain Corridor Of The Middle Loup River Basin, Nebraska Natural Heritage Program

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

In April 1996 the Nebraska Game and Parks Commission (NGPC) entered into agreement with the U. S. Department of the Interior Bureau of Reclamation (BOR) to conduct inventory work for endangered, threatened, and rare plant and animal species within the floodplain corridor of the Middle Loup River basin in Nebraska. This district includes the Farwell and Sargent Irrigation Districts. The impetus for such inventory work is the renewal of current water services contracts between BOR and irrigation districts that will expire in 1988. BOR has stated the need to balance the interests of the irrigation districts and their clients, with …


1996 Ecological Evaluation Cunningham Creek Potential Research Natural Area, A Final Report, Terri Hildebrand Jan 1996

1996 Ecological Evaluation Cunningham Creek Potential Research Natural Area, A Final Report, Terri Hildebrand

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The Cunningham Creek potential Research Natural Area (RNA) is located approximately 27.2 km (17 miles) east-southeasterly of Crawford, Nebraska or 40 km (25 miles) southwesterly of Chadron, Nebraska. Located on the Pine Ridge District of the Nebraska National Forest, the site is included in the Pine Ridge ecosystem of western Nebraska. Four hundred hectares (1000 acres) consisting of deciduous woodlands, pine forests, and upland prairies are located in the survey area. Inclusions of wet meadows, oak woodland, and aquatic systems intermingle in the deciduous woodland. Cattle grazing and recreation are the primary uses of the area. The purpose of this …


Identification And Conservation Strategy For Sandhills Fens In Cherry County Nebraska, Gerry Steinauer Feb 1995

Identification And Conservation Strategy For Sandhills Fens In Cherry County Nebraska, Gerry Steinauer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

In the Sandhills, fens are generally found in two locations: in stream valleys often near the headwaters and at the upper end of Sandhills lakes and marshes. In both areas groundwater discharge into the valleys can be abundant, and in some cases, has led to the development of fens on the valley floor. A few Sandhills fens approach 500 ac (200 ha) in size and are among the largest fens in the Great Plains. Most Sandhills fens are smaller, some only a few acres (ha) or less in size.

Human disturbances including ditching, artificial flooding, annual haying, overgrazing, invasion of …


Should Australia Export Its Native Birds?, Ross Kingwell Aug 1994

Should Australia Export Its Native Birds?, Ross Kingwell

Biosecurity Research Articles

Commercial export from Australia of native birds, wild or captive bred, is prohibited. This paper firstly describes the current legislation and regulations that restrict the export of native birds and discusses why governments have adopted such a regulatory approach to bird species preservation. Secondly, the paper reviews the debate concerning the export ban, pointing out strengths and weaknesses in arguments and indicating the important role of CITES. Lastly, the paper outlines a new case for a conditional lifting of the ban, whereby DNA fingerprinting is used to establish transferable property rights to overcome a main source of market failure in …


Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife Jan 1994

Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife

Maine Collection

Sport Fisheries of the Belgrade Lake

Maine Department of Inland Fisheries & Wildlife, Augusta, Maine 1994.

Contents: Belgrade Lakes Chain, Some Vital Statistics / Some Features of the Seven Major Waters of the Belgrade Chain of Lakes / A Partial List of Fish Species That Occur in the Major Waters of the Belgrade Chain of Lakes / East Pond Oakland and Smithfield / Great Pond Oakland, Belgrade, and Rome / Long Pond Mt. Vernon, Rome, and Belgrade / Messalonskee Lake Oakland and Belgrade / North Pond Smithfield, Rome, and Mercer / Salmon Lake and McGrath Pond Belgrade and Oakland



Fisheries Research Report No.100 - The Impact Of Trawling For Saucer Scallops And Western King Prawns On The Benthic Communities In Coastal Waters Off South-Western Australia, L. J.B. Laurenson, P. Unsworth, J. W. Penn, R. C.J. Lenanton Jun 1993

Fisheries Research Report No.100 - The Impact Of Trawling For Saucer Scallops And Western King Prawns On The Benthic Communities In Coastal Waters Off South-Western Australia, L. J.B. Laurenson, P. Unsworth, J. W. Penn, R. C.J. Lenanton

Fisheries Research Reports

A two year study was undertaken to collect data for the assessment of the impact of the saucer scallop and western king prawn trawl fisheries on the benthic communities in coastal waters off south western Australia, between 31°20'5 and 34°23'5 latitude.

Monitoring of reported commercial landings, on-board sampling of commercial catches, research vessel trawl surveys, experimental and exploratory trawling, and underwater television observations, have enabled the development of an extensive data-base on the fishery and benthic communities of the region.

These data indicate that the existing fishery operates on a number of relatively small, discrete grounds where saucer scallops or …


Inventory Of Rare Plant Species In The Pine Ridge Area Of Nebraska (Dawes And Sioux County, Nebraska), Michael I. Fritz, Joyce Philips Hardy, Steven B. Rolfsmeier Dec 1992

Inventory Of Rare Plant Species In The Pine Ridge Area Of Nebraska (Dawes And Sioux County, Nebraska), Michael I. Fritz, Joyce Philips Hardy, Steven B. Rolfsmeier

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The purpose of this project was to conduct a systematic inventory of rare plant species on the Pine Ridge District of the Nebraska National Forest. The objective of the inventory was to locate rare plant occurrences and compile information on their location, status and any possible threats. Four areas within the Pine Ridge District were identified as priority areas for the inventory fieldwork. The four tracts included the Soldier Creek Wilderness Area, a tract encompassing the East and West Ash Creek drainages, a middle unit tract, and a tract which straddles U.S. Highway 385 and encompasses a number of timber …


Lake Mead Nutrient Enhancement Project, Peter D. Vaux, Larry J. Paulson, Nevada Department Of Wildlife, National Oceanic And Atmospheric Administration Dec 1990

Lake Mead Nutrient Enhancement Project, Peter D. Vaux, Larry J. Paulson, Nevada Department Of Wildlife, National Oceanic And Atmospheric Administration

Publications (WR)

The Lake Mead Fertilization Project is a research program designed to investigate the potential for using large-scale artificial fertilization to enhance the game fisheries of this reservoir through an increase in the population of threadfin shad, the system's primary forage species. A substantial decline in the population of largemouth bass, together with poor condition of adult striped bass, are the two major issues affecting the Lake Mead game fisheries. Both issues have been hypothesized to be a result of an inadequate amount of forage in the reservoir. Previous studies have in turn suggested that a major factor limiting the shad …


Miscellaneous Publication 23/90 - The Economic Implications Of Btec Destocking Part Of The West Kimberley Cattle Herd, Bruce Howard Jun 1990

Miscellaneous Publication 23/90 - The Economic Implications Of Btec Destocking Part Of The West Kimberley Cattle Herd, Bruce Howard

Biosecurity published reports

Economic implications of destocking infected breeding cows from the West Kimberley region, as part of the Brucellosis and Tuberculosis Eradication Campaign (BTEC) programme, were studied to evaluate effects on herd size, turn-off, cash surpluses and herd asset value.


Fisheries Research Report No. 92 - Spread Of The Introduced Yabbie Cherax Albidus Clark, 1936 In Western Australia, N. M. Morrissy, G. Cassells Jan 1990

Fisheries Research Report No. 92 - Spread Of The Introduced Yabbie Cherax Albidus Clark, 1936 In Western Australia, N. M. Morrissy, G. Cassells

Fisheries Research Reports

This report presents information on the probable original introduction of the eastern Australian yabbie to farm dams in the Wheat-belt Region of the southwest of Western Australia (in 1932 at Narembeen); the probable type of yabbie (the "White Yabby", Cherax albidus Clark 1936 ) and source (Miram Swamp in the Victorian Wimmera); and, in 1985, the first voicing of concern over the spread of yabbies to natural habitats, particularly in the higher rainfall region of the southwest, together with current national and international concerns and advice on introduced aquatic species.

Commercial harvesting ("extensive" aquaculture) of existing yabbie stocks in wheat-belt …


Fisheries Research Report No. 83 - The Western Rock Lobster Fishery 1985/86, R. S. Brown, E H. Barker Jan 1990

Fisheries Research Report No. 83 - The Western Rock Lobster Fishery 1985/86, R. S. Brown, E H. Barker

Fisheries Research Reports

The 1985/86 annual catch of the western rock lobster Panulirus cygnus, totalled 7,191,968kg (Australian Bureau of Statistics (ABS) ), a drop of 1,774,497kg (19.8 per cent) on the 1984/85 season. The value of the 1985/86 catch was approximately $94M based on ABS figures. This drop in catch was almost entirely the result of lower puerulus (first post larval stage, approximately 9 to 11 months old) settlement three to four years before (i.e. 1982/83 and 1981/82). The fall in catch was accompanied by a drop in fishing effort (total number of pot lifts) of 12.1 per cent on the previous season …