Inventory of current water resources research at Colorado State University

Includes index.July 1973

Behavioural responses of western gray whales to a 4-D seismic survey off northeastern Sakhalin Island, Russia

A seismic survey was conducted off the northeastern coast of Sakhalin Island, Russia in 2010. The survey area was adjacent to the only known near-shore feeding ground of the Critically Endangered population of western gray whales Eschrichtius robustus in the western Pacific south of the Aleutian Islands. This study examined the effectiveness of efforts to minimize the behavioural responses of the whales to vessel proximity and sound during the survey. Two shore-based behavioural observation teams monitored whale movements and respirations pre-, during and post-seismic survey. Theodolite tracking and focal-animal follow methods were used to collect behavioural data. Mixed linear models were used to examine deviations from 'normal' patterns in 10 movement and 7 respiration response variables in relation to vessel proximity, vessel/ whale relative orientations and 8 received sound metrics to examine if seismic survey sound and/or vessel activity influenced the whales' behaviour. Behavioural state and water depth were the best 'natural' predictors of whale movements and respiration. After considering natural variation, none of the response variables were significantly associated with seismic survey or vessel sounds. A whale's distance from shore and its orientation relative to the closest vessel were found to be significantly influenced by vessel proximity, which suggested some non-sound related disturbance. The lack of evidence that the whales responded to seismic survey sound and vessel traffic by changing either their movement or respiration patterns could indicate that the current mitigation strategy is effective. However, power analyses suggest that our sample sizes were too small to detect subtle to moderate changes in gray whale behaviour

NORTHERN ROCKY MOUNTAIN WOLF RECOVERY PLAN

As enacted by Congress, the purposes of the Endangered Species Act are to provide a program for the conservation of such endangered and threatened species as well as a means whereby the ecosystems upon which such species depend may be conserved. The Act also mandates that the Secretary of the Interior shall develop and implement plans for the conservation and survival of endangered and threatened species. It is further declared to be the policy of Congress that all Federal departments and agencies shall seek to conserve endangered and threatened species and shall utilize their authorities in furtherance of the purposes of the Act. The Northern Rocky Mountain Wolf Recovery Plan outlines steps for recovery of gray wolf (Canis lupus) populations in portions of their former range in the Northern Rocky Mountains of the United States. Historical evidence documents the presence of gray wolves throughout the Northern Rocky Mountains of the contiguous United States. This subspecies (Canis lupus irremotus) was a predator on native ungulates under pristine conditions and later , as European Americans spread westward, on domestic livestock. Substantial declines in wolf numbers resulted from control efforts to reduce livestock and big game depredations. Currently, no viable populations of wolves occur in the Rocky Mountains south of Canada, however, at least one pack and several individual animals are known to be present. This plan emphasizes gray wolf recovery through natural processes (dispersal southward from western Canada) where possible. Where this is not possible because of distance from seed populations, translocation is the only known way to establish a population. Either philosophy necessitates conservation of suitable habitat in appropriate recovery areas. Establishing and maintaining wolf populations in three separate areas is believed necessary for recovery at this time. The probability of recovery through natural recruitment is high in northwestern Montana, moderate in Idaho, and remote in Yellowstone National Park. Characteristically, the recovery areas that have been identified are large and remote, where the potential for conflict situations would generally be limited to their periphery. However, resolution of such conflicts is requisite to successful natural reestablishment and thus is an essential element for recovery

Proceedings of the Prairie Grouse Symposium

Symposium held September 17-18, 1980Prairie chickens and sharptailed grouse evolved and have survived in the grasslands of the central portions of the North American continent . The vegetation, fire, drought, extremes in temperature, native grazing species, and the prairie grouse coexisted in a dynamic system that was only minimally influenced by humans. The prairie grouse in general may have benefited by early agricultural activities of the more permanent settlers in the late 1800's and early 1900's. However, the grouse of today are providing a record of the changes in land use that affect not only the grouse but a flora and fauna that biologists refer to as the grassland ecosystem. This symposium focuses on only a few species of prairie birds with the purpose of providing a written record of the current status of these indicators of the grassland ecosystem. The 1st 5 papers in these proceedings were invited. The remaining papers were volunteered by biologists working with research and management of the prairie grouse. The planning for the symposium began with the impetus of the Oklahoma Cooperative Wildlife Research Unit and the "blessing" of the Prairie Grouse Technical Council meeting in Pierre, South Dakota in Sept. 1977. Notices of the symposium were provided to all known prairie grouse biologists and other interested persons. All authors provided "camera ready" copy to reduce publication costs. Not all current or immediate past research on prairie grouse is represented in this proceedings. It is hoped that studies and information not represented here will be published soon in other literature available to those interested in prairie grouse and the grassland ecosystem. We desire that the information contained on these pages will reach those decision makers , including landowners and or land operators, who can favorably influence the future of the prairie grouse and their grasslands support base

Cultural Resource Inventory and Testing in the Salt Creek Pocket and Devils Lane Areas, Needles District, Canyonlands National Park, Utah

This document is the final technical report on the first phase of a multiyear archeological program conducted in Canyonlands National Park. Some of the purposes of this project are to gather information for upgrading the park\u27s interpretive program, increase the scientific understanding of Canyonlands\u27 prehistory, and prepare a research design to guide future investigations. Archeological inventory of 4500 acres in the Needles District revealed a previously undocumented Archaic occupation and showed that Formative peoples using the area were primarily the Mesa Verde Anasazi, not the Fremont and Anasazi as previously thought. The data also indicate that prehistoric peoples used the survey area on an intermittent basis, primarily to hunt, harvest wild plants, and procure local lithic resources. There is little evidence of horticultural activities. Finally, an uncorrected radiocarbon date of 3340 +- 100 years: 1390 B.C. was obtained from a site with Barrier Canyon Style rock art; the association is suggestive but more research is needed before the date is unquestioningly applied to the Barrier Canyon rock art

Proceedings of the Second Eastern Pine and Meadow Vole Symposium

HIGHLIGHTS OF THE SECOND EASTERN FINE AND MEADOW VOLE SYMPOSIUM The Second Eastern Pine and Meadow Vole Symposium met at Beltsville, Maryland, February 23-24, 1978, to discuss various solutions to the serious damage caused by these rodents to fruit trees in the Eastern United States. Fruit growers, local, state, and federal research and extension specialists from many universities, Environmental Protection Agency, U. S. Department of Agriculture, U. S. Department of Interior, and the chemical industry participated in the program. The purpose of the second symposium was to focus attention on one of the most serious cultural problems facing the fruit industry, to stimulate research, and to seek funds for a national pine vole damage control program. A number of universities reported their work on various aspects of the problem; but because of the lack of funding, the scope and intensity of coordinated research efforts was felt to be greatly needed. The removal of Endrin by New York State in 1971 provided a classic example of serious farm losses caused by the irresponsible removal of a minor use pesticide with no planned alternate control measure. Since the Hudson Valley was on the northern most border of the pine vole range and because Endrin was being used until 1970, only approximately 7 orchards involving 600-700 acres were known to be infested. By 1977 the vole had enlarged its range to 30 orchards involving 4,200 acres (Warren Smith, personal communication). In the center of the geographic range (Virginia and West Virginia) the problem had become most acute in the period 1965-1970 because Endrin had been used on an annual basis for about 10 years and Endrin resistant strains developed. Ten years have now passed since the first resistant strains were found. At this time (1978) Endrin resistance is widespread in the Cumberland-Shenandoah apple region. Therefore, we expect that Endrin will be only a temporary control agent for the margin areas where Endrin has had more limited usage on less than an annual basis. State by state labels for Chlorophacinone baits and ground sprays and Diphacinone baits are now the only cleared alternatives to Endrin. Research on two promising new anticoagulants Brodifacoum and Bromadiolone was reported. A nationally funded coordinated research program was discussed at a night session. The USDI personnel presented a 1.3 million dollar add-on appropriation proposal to their budget designed for both in-house and contract research. This add on proposal was approved in early May by the Interior sub-committee. By early June it had passed the full committee on Interior. The House and Senate must yet act on the full Interior Bill, but it is not likely the pine vole research money would be altered after approval by the sub and full committees. In addition soon after the symposium, a tentative National Pine Vole Advisory Council was appointed by a number of State Horticulture Societies. This list of individuals appear to have the knowledge and expertise to assist in the development of a coordinated balanced re¬search program as federal funding becomes available

The Library

Texto griego con traducción al inglésCopia digital. España : Ministerio de Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 202