Life Sciences Commons^™

Dragonflies At The Uwm Cedar-Sauk Field Station, Tom Pleyte

Field Station Bulletins

When visitors and classes utilize the Field Station facilities during the summer months, they seldom fail to notice dragonflies coursing the old fields or hawking mosquitoes over the little ponds. Their beauty and strong powers of flight have long fascinated observers, but few casual on-lookers are aware of the number of species present at the Field Station and the complexity of their behavior and annual cycles. This report will attempt to familiarize the reader with some aspects of the biology of dragonflies, the species of dragonflies present at the UWM Field Station and the times of the year when each …

Leachable Phosphorus Levels Of Urban Street Trees: Contributions To Urban Runoff, John R. Dorney

Field Station Bulletins

Intelligent environmental management of urban areas depends upon a thorough understanding of urban ecosystem properties, such as structure, energy flow and materials cycles. This report examines the phosphorous cycle in urban runoff - a portion of the urban phosphorous cycle - which is involved in diffuse (non-point) source pollution from urban areas. The goals of my research were to determine if street tree leaves and seeds are a source of phosphorous in urban runoff and if so, how these levels varied between tree species.

Nepal Studies Association Bulletin, Nos. 19-20, Nepal Studies Association, Donald A. Messerschmidt

Nepal Studies Association Newsletter

No abstract provided.

Subject And Author Index For Bulletins Of The Storrs Agricultural Experiment Station, Mohini Mundkur

Storrs Agricultural Experiment Station

Storrs Agricultural Experiment Station Bulletin #453, 68 pages.

Acid Precipitation: A Potential Environmental Problem At The Uwm Field Station, Nicholas P. Kobriger

Field Station Bulletins

Emissions into the atmosphere from man-related sources are changing precipitation quality and chemical climate over many parts of the United States, especially those areas downwind from highly urbanized and industrialized sections. Soils, vegetation and surface waters act as passive sinks for many elements found in the atmosphere (Oden, 1976). These elements are not fixed but are transferred from one component to the next at varying rates. High acidity in precipitation is a growing environmental problem (Oden, 1976, Cogbill, 1975b and USDI, 1973). Acids and other pollutants in the atmosphere which are washed out by rainfall can affect soil processes, plant …

Sex Identification In Black-Capped Chickadees, Charles M. Weise

Field Station Bulletins

At the UWM Field Station we have been banding chickadees since 1965, and color banding since 1967. Since 1970, I have conducted an intensive study of the population ecology of this species involving observations of the winter flock organization, dominance orders in flocks, territorial behavior in spring and summer, nesting success, dispersal of fledged young and survival of young from summer to winter. The objective is to understand how the chickadee population is regulated. The population occupies 750 acres of upland forests and bog forests and, at any one time, consists of 200-300 birds, virtually all color-banded for individual recognition. …

Salt And Milwaukee Street Trees, Susan Van Wyck, Forest Stearns

Field Station Bulletins

Many trees are not well-adapted to the rigors of urban life. Some are highly susceptible to the effects of S02. Others, such as the oaks, grow too slowly while cottonwood and horse chestnut for example, good city trees, in most respects, produce quantities of fruit or seeds considered a nuisance by many residents. Trees best adapted to urban life appear to be those native to floodplains such as elm, ash, silver maple and sycamore. These species evolved to survive spring floods, summer droughts and therefore are better suited to the poorly aerated city soils. Since the rapid demise of elms …

Oak Island Dynamics In Southeastern Wisconsin, Frank Mudrak

Field Station Bulletins

The oak forests of southeastern Wisconsin appear relatively consistent in species composition and probably have shown little change in this regard since European settlement, perhaps because they were originally forest islands in a prairie matrix and remain as islands in an agricultural setting. Elimination of periodic fire permitted the oak savanna to develop into oak forest. Apparently the degree of separation between islands and the xeric nature of the sites restrict invasion by exotic species established as cultivars in nearby villages and farmsteads. Neither tree species richness nor tree species diversity could be predicted from island size, substantiating the belief …

Characterizing Flight Aggregation Of The Southern Pine Beetle, Jack E. Coster, Paul C. Johnson

Faculty Publications

Spatial aggregation patterns of flying southern pine beetles, Dendroctonus frontalis Zimm., were studied using a systematic grid of sticky flight traps placed in 3 beetle infestations. Five methods of characterizing dispersion were compared: Lloyd's index of patchiness (IP), Morisita's index of dispersion (15), the coefficient of dispersion (CD), the slope of

Taylor's power function (b) and the slope of Iwao's regression of mean crowding on mean density (m). All indices indicated a high degree of aggregation of flying southern pine beetles within the infestations. The indices varied, however, in their ranking of aggregation for the 3 study sites. IP and …

Effects Of Prescribing Burn On Cavity Trees Of Red-Cockaded Woodpeckers, Richard N. Conner, Ann Snow

Faculty Publications

No abstract provided.

Nepal Studies Association Bulletin, No. 18, Nepal Studies Association, Donald A. Messerschmidt

Nepal Studies Association Newsletter

No abstract provided.

Uneven-Aged Forest Management: State Of The Art (Or Science?)

Forestry

Examines some important historical factors that have caused widespread preference of the even-aged management system over the uneven-aged. Major decisions facing forest managers interested in applying uneven-aged management are defined, and a review is made of techniques traditionally used, or recently proposed, for use in making these decisions. Finally, problem areas needing further research and development are identified.

Mature Aspen Forest, Donald Rakstad, John R. Probst

Aspen Bibliography

No abstract provided.

Aspen Clearcut (8-Year), Donald Rakstad, John R. Probst

Aspen Bibliography

This report includes a breeding-bird census, a list of dominant plant species, and brief physiographic data for a 8-year old aspen clearcut on the Chippewa National Forest, Michigan.

Aspen Forest (20-Year), Connie J. Pearson, John B. Probst

Aspen Bibliography

This report includes a breeding-bird census, a list of dominant plant species, and brief physiographic data for a 20-year old aspen forest in Ontonagon, Michigan.

Tree Rings And Kaibab North Deer Hunting Success, 1925-1975, C.E. Young

Aspen Bibliography

Knowledge of the biotic and abiotic factors producing long and short-term changes in numbers provides the basis for managing wildlife populations. Frequently, evaluation of these factors over a long time period is impossible. the large, well-documented past fluctuations of mule deer (Odocoileus hemionus) numbers on Arizona's North Kaibab plateau (Rasmussen, 1941; Russo, 1964; Caughley, 1970; Burk, 1973) make it potentially useful for examining long-term effects.

Hypoxylon Canker Incidence On Pruned And Unpruned Aspen, Michael E. Ostry, G.W. Anderson

Aspen Bibliography

This sturdy was designed to measure the relation between the incidence of Hypoxylon canker, Hypoxylon mammatum Wahl. Mill., and the presence of branches on an aspen stem.

Hypoxylon Canker Of Aspen, R.L. Anderson, G.W. Anderson, Arthur L. Schipper, Jr

Aspen Bibliography

No abstract provided.

Sucker Regeneration In A Utah Aspen Clone After Clearcutting, Partial Cutting, Scarification And Girdling, George A. Schier, Arthur D. Smith

Aspen Bibliography

No abstract provided.

Shrub Nesting Of The Red-Eyed Vireo [Vireo Olivaceous] In Relation To Structure Of Aspen [Populus Tremuloides] Forests [In Northern Minnesota], W.J. Mattson, Jr

Aspen Bibliography

No abstract provided.

Quaking Aspen--Seed Germination And Early Seedling Growth, Walter T. Mcdonough

Aspen Bibliography

No abstract provided.

Long-Term Changes In Cottonwoods On A Grazed And An Ungrazed Plains Bottomland In Northeastern Colorado, Glenn L. Crouch

Aspen Bibliography

No abstract provided.

Aerial Stand Volume Table For Plains Cottonwood In Eastern Colorado, Carleton B. Edminster, James R. Getter

Aspen Bibliography

No abstract provided.

Estimating The Volume Of Hardwood Crowns, Stems, And The Total Tree, Douglas R. Phillips, Noel D. Cost

Aspen Bibliography

No abstract provided.

Regeneration And Productivity Of Aspen [Populus Tremuloides] Grown On Repeated Short Rotations [In Minnesota], Donald A. Perala

Aspen Bibliography

No abstract provided.

Growth Response To Fertilizer In A Young Aspen-Birch Stand, M.M. Czapowskyj, L.O. Safford

Aspen Bibliography

No abstract provided.

Interacting Environmental Factors Associated With The Incidence Of Hypoxylon Canker On Trembling Aspen, R.I. Bruck

Aspen Bibliography

No abstract provided.

Discoloured Wood Of Aspen Caused By Increment Boring, G. Laflamme

Aspen Bibliography

No abstract provided.

Metric Site Index Curves For Aspen, Birch And Conifers In The Lake States, P.R. Laidly

Aspen Bibliography

No abstract provided.

Wildlife Habitat Investigations And Management Implications On The Bridger-Teton National Forest, G.E. Gruell, M.S. Boyce, L.D. Hayden Wing

Aspen Bibliography

Grazing impact by elk and moose has been a point of concern in Jackson Hole for many years. Concern has been primarily directed towards sparsely vegetated south aspects, aspen stands, and willow bottoms. Numerous transects have quantified heavy foliage utilization. Trend studies have been mostly inconclusive. Study of historical narratives have quantified heavy forage utilization. Trend studies have been mostly inconclusive. Study of historical narratives, early photographs and consideration of plant physiology, soils data, and fire ecology have aided interpretations of vegetal trend and plant succession in recent years. Photographs show little change on sparsely vegetated sites. Soils information on …