Life Sciences Commons^™

Explorations, Vol. 1, No. 1, R. D. Blake, Katherine Carter, David Mackinnon Ebitz, Carole J. Bombard, Stephen A. Norton

Explorations — A Journal of Research

Welcome to the first issue of Explorations, A Journal of Research at the University of Maine at Orono.

Join us as we explore a representative selection of the pure and applied research of our faculty. At UMO, we believe that research can capture the imagination and invigorate the mind, as well as contribute directly to the quality of life of the citizens we serve.

In this first issue, we have selected four areas of research that span the disciplines of biological and environmental sciences and the arts. This is but a small part of the research conducted by the faculty …

The Effects Of Seed Size And Maternal Origin On The Distribution Of Individual Plant Size In Ludwigia Leptocarpa (Onagraceae), Rebecca W. Dolan

Scholarship and Professional Work - LAS

Seed size is normally distributed for many annual species, while mature plant size is frequently positively skewed. A study was conducted to determine the influence of seed size and the role of genetic differences in determining relative seedling size for Ludwigia leptocarpa. Seed size had a significant effect on percentage germination and time of seed germination but no effect on dry weight or leaf area of seedlings. Seed size and spacing had a significant effect on seedling dry weight for plants grown under competition, while relative day of emergence had no effect. Familial (genetic) differences were found in average seed …

Verbascum Densiflorum At The Uwm Field Station, James A. Reinartz

Field Station Bulletins

Nine of 260 species of the Eurasian genus Verba scum have been reported from North America; only two (y. thapsus and y. blattaria) are common. Verba scum densiflorum is well established in the U.S. only in southeast Wisconsin in the area immediately surrounding the Field Station where it is an aggressive weed. It differs morphologically, phenologically and ecologically from either y. thapsus or y. phlomoides, the two more common species which it superficially resembles.

Seasonal Changes And Overwintering Of Endoparasites In The Bat (Myotis Lucifugus) In A Southeastern Wisconsin Hibernaculum, James R. Coggins

Field Station Bulletins

Eight digenetic trematode species (Phylum Platyhelminthes, Subclass Digena), one cestode species (Phylum Platyhelminthes, Class Cestoidea) and three nematode species (Phylum Nematoda) were recovered from the little brown bat, Myotis lucifugus, at the Neda Mine hibernaculum in southeastern Wisconsin. Bats displayed a rich and diverse helminth fauna throughout the year. Statistically significant seasonal variation was observed for two digenetic trematodes. Mean intensities and prevalence of parasites were highest in autumn and spring and lowest in summer. Highest species diversity occurred in autumn. Greater intensity and prevalence in autumn and spring were correlated with bat swarming and emergence patterns, behavioral phenomena which …

Fungal Flora Of Southeastern Wisconsin, Kristine Ciombor, Martyn J. Dibben

Field Station Bulletins

Since its reorganization in 1981, one goal of the Wisconsin Mycological Society has been a comprehensive long-term survey of fleshy and other fungi of southeastern Wisconsin. Over a period of years, random collections are to be made at a series of selected foray sites to document spring through fall floras. The UWM Field Station is one of these foray sites. Habitat and locality are to be recorded for each specimen along with field characteristics. Each identified collection will be dried and filed in the herbarium of the Milwaukee Public Museum. To date 35 specimens representing 29 species are on file. …

Research In Plant Ecology At Uwm - 1965 To 1984, Forest Stearns

Field Station Bulletins

Ecological research on plants and plant communities has been an active program at UWM, Involving several faculty, many undergraduate and graduate students and the UWM Field Station. Aquatic and urban environments, forests and wetlands have received most attention although prairie and landscape ecology and endangered species have not been neglected. Descriptive, theoretical and applied studies are Included spanning the spectrum from the autecology of a single species to examination of entire landscapes. Over the period of 20 years, 54 M.S. theses, nine Ph.D. dissertations and numerous published papers and reports have resulted. University-sponsored research serves several purposes: discovery of new …

Coniferous Forest Habitat Types Of Northern Utah, U.S. Forest Service, United States Department Of Agriculture, Ronald L. Mauk, Jan A. Henderson

All U.S. Government Documents (Utah Regional Depository)

A habitat type classification is presented for the coniferous forests of northern utah and adjacent areas of idaho and wyoming. The classification and descriptions are based on data from about 1,100 sample stands covering 6 years of reconnaissance sampling.

Withdrawals Of Public Lands Under The Federal Land Policy And Management Act, David H. Getches

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

17 pages.

Directions For The Future, Clyde O. Martz

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

11 pages.

Includes the Public Land Law Review Commission's 1970 report, A Program for the Future (7 pages).

Private Use Of The Public Lands – What Is The Appropriate “Fair Market Value”?, Richard L. Stroup

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

44 pages.

Contains a 4-page outline; one page of references (page 6); and 37 pages of appendices arranged in 11 topical areas.

Access To And Across Public Lands, Rebecca Love Kourlis

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

16 pages.

Contains list of references (page 1 of text).

Wilderness And The Public Lands, John D. Leshy

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

18 pages (includes chart).

Flpma, Pria, And The Western Livestock Industry, George Cameron Coggins

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

32 pages.

Contains list of research sources (pages 1-3).

Flpma As It Affects The Mining Industry, William R. Marsh

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

67 pages.

11 pages of text with appendices.

Flpma From The Perspective Of The Bureau Of Land Management, H. Robert Moore

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

14 pages.

State And Local Involvement In Bureau Of Land Management Planning Under The Federal Land Policy Act Of 1976, Tom Glass

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

8 pages.

The Blm Planning Process: Chasing The Rabbit, H. Paul Friesema, Paul J. Culhane

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

11 pages.

Public Land Law: The Development Of Federal Policy, Charles F. Wilkinson

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

19 pages.

Contains annotated list of research sources (pages 2-4).

Agenda: The Federal Land Policy And Management Act, University Of Colorado Boulder. Natural Resources Law Center

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

Conference organizers and/or faculty included University of Colorado School of Law professors James N. Corbridge, Lawrence J. MacDonnell, David H. Getches and Charles F. Wilkinson.

This important piece of legislation, passed by Congress in 1976 following many years of extensive study and debate, directs the activities of the nation's major land manager--the Bureau of Land Management. The FLPMA conference will bring together a distinguished group of experts to review the law itself, to consider the effectiveness with which it has been implemented, and to discuss the key issues which have arisen under its implementation.

Federal Land Sales And Exchanges, Jon K. Mulford

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

140 pages (includes map).

Includes 27 pages of text, 1 page of references, and 17 appendices.

Trouble In The Quakies [Populus Tremuloides, Clearcutting, Western Usa], S.M. Voynick

Aspen Bibliography

No abstract provided.

String Bog Or "Strangmoor" In Cedarburg Bog, Thomas F. Grillinger

Field Station Bulletins

This paper discusses the string bog portion of Cedarburg Bog and the origin of string bogs in general. String bog or "strangmoor" Is found in Cedarburg Bog, which Is about 200 miles south of the southernmost string bog location previously reported. The string bog Is deep within the bog, remote from both the periphery of the bog and the open lakes within It. This vegetational pattern consists of slightly raised ridges and islands with woody vegetation, alternating with flat sedge mat areas. This string bog, like others of North America and Eurasia, is found on a slightly sloping surface; the …

Autecological Studies Of Drosera Linearis, A Threatened Sundew Species, Juliet C. Stromberg-Wilkins

Field Station Bulletins

The linear-leaf sundew has been extirpated from several stations at the southern edge of Its range. Cedarburg Bog is believed to harbor the largest of the remaining southern colonies of this species. Drosera linearis has a lower reproductive output at Cedarburg Bog than at other sites, and produces fewer seeds per plant than the three sundew species which share its range. The population studied at Cedarburg Bog declined in population size and reproductive output from 1980 to 1982, and revealed characteristics associated with high rates of local extinction. Populations experienced rapid turnover of individuals, and population size was closely coupled …

The Occurrence And Distribution Of Prairie-Associated Plants And Remnant Prairie Communities In The Northern Kettle Moraine State Forest, William K. Volkert

Field Station Bulletins

This paper summarizes findings on the occurrence and distribution of native prairie grasses and forbs on non-forested sites in the Kettle Moraine State Forest Northern Unit (KMSF). Twelve remnant prairie communities were located. These twelve sites Included a total of 5 prairie grasses and 46 forb species.

Streamflow Summaries From Twelve Tributaries Of Farmington Creek, Davis County Experimental Watershed, Northern Utah, U.S. Forest Service, United States Department Of Agriculture, Jan M. Pankey, Norbert V. Debyle

All U.S. Government Documents (Utah Regional Depository)

The Farmington Creek watershed consists of 6,400 acres of forested and brush-covered lands on the west face of the Wasatch Mountains between Salt Lake City and Ogden. Streamflow data have been gathered from this stream as well as from most of its perennial tributaries for many years. Mean daily, monthly, and annual flows are tabulated for all years of record from the 12 gaged tributaries of farmington creek.

Growth, Yield, And Enfor, Imre Bella

Aspen Bibliography

Increasing public awareness about the state of forestry and concerns about present and future wood supplies are bringing about an intensification of forest management across the country.

Coniferous Forest Habitat Types Of Northern Utah, Ronald L. Mauk, Jan A. Henderson

The Bark Beetles, Fuels, and Fire Bibliography

Data from >1100 plots in coniferous forests of northern Utah and adjacent areas of Idaho and Wyoming were used to identify 8 climax series and 36 habitat types. Descriptions are given of each type with notes on potential productivity for timber and characteristics of site, climate and surface soil.

Mississippi’S Softwood Timber Potential: Private Nonindustrial Influences, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees

Faculty Publications

Mississippi's long-run softwood timber potential was estimated for three input situations under a common set of economic and biological assumptions. Economic goals for sustained pine production were estimated using the computer program GASPLY with no restrictions, with private nonindustrial upland hardwoods excluded from type conversion and with private nonindustrial lands excluded from active forest management altogether. Estimated price-quantity equilibria ranged from $301 per thousand cubic feet (MCF) and 966 million cubic feet (MMCF) in the unrestricted case, to $1,226/MCF and 479 MMCF in the example with passive private nonindustrial management. Widely diffel'ing potential goals for pine product-ion highlight the degree …

An Approach For Projecting Mixed-Species Forest Growth And Mortality, Steven H. Bullard

Faculty Publications

Mixed-species forests are common throughout the United States and growth and yield models are needed which reflect complex interrelationships. A stand-table projection approach with upgrowth and mortality components is presented for modeling growth and development in such forests. The method involves concepts previously used to model mixed-species diameter growth, in the upgrowth component of the projection system. Tentative equation forms arc presented to help clarify the general approach.

Root Diseases And Blister Rust Associated With Bark Beetles (Coleoptera: Scolytidae) In Western White Pine In Idaho, David Kulhavy, A.D. Partridge, R.W. Stark

Faculty Publications

Root systems of western white pine, Pinus montieola Douglas, were excavated with explosives and examined for pathogens. Data were also recorded on portions of the crown killed by blister rust caused by Cronartium ribieola Fisch. Statistical tests revealed a significant association between the bark beetles Dendroetonus ponderosae Hopkins and Pityogenes fossifrons (LeConte), and the root pathogen Armillariella mellea. (Vah!. ex Fr.) Karst and between beetles and all root diseases. Ninety-two percent of the trees attacked by bark beetles had root diseases, and 97% had either root diseases or blister rust. A discriminant analysis correctly classified 88% of the sample trees …