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Forest Biology

1991

Articles 1 - 13 of 13

Full-Text Articles in Forest Sciences

A Preliminary Survey Of The Bryophytes Of The Sapa Bog, Frank D. Bowers, Joanne Kline Oct 1991

A Preliminary Survey Of The Bryophytes Of The Sapa Bog, Frank D. Bowers, Joanne Kline

Field Station Bulletins

The Sapa Bog in Ozaukee County covers 5 hectares and is the southernmost black spruce bog in Wisconsin. Sedge meadow and swamp hardwoods surround an acidic center dominated by sphagnum mosses, black spruce and tamarack. Parker (1989) surveyed the fungi and Kline (1991) surveyed the vascular plants and described the water chemistry of the area. We report a total of 56 bryophyte taxa collected in the Sapa Bog from 1989 to 1990. An asterisk indicates an apparently new report for Ozaukee County (Bowers and Freckmann, 1979). Citation of moss names follows Anderson, et. al. (1990) and Crum (1984) for Sphagnum. …


Life Cycle Information From A Wisconsin Poplation Of Porcellio Spinicoris, The Dark-Headed Isopod, Joan P. Jass, K Zandi, Barbara Klausineier Oct 1991

Life Cycle Information From A Wisconsin Poplation Of Porcellio Spinicoris, The Dark-Headed Isopod, Joan P. Jass, K Zandi, Barbara Klausineier

Field Station Bulletins

Detailed life cycle information is lacking for Wisconsin terrestrial isopod crustaceans. We measured head-widths of a local population of Porcellio spinicornis and compiled data on size frequencies, sex ratio and gravidity. Females were larger and formed a majority of the population. Gravidity showed a definite seasonal pattern; percentages of gravid females ranged from zero in March and April to near 80% in late May and early June.


Distribution And Habitats Of Forked Aster (Aster Furcatus), A Threatened Wisconsin Plant, Lawrence A. Leitner, James A. Reinartz, Donald H. Les Oct 1991

Distribution And Habitats Of Forked Aster (Aster Furcatus), A Threatened Wisconsin Plant, Lawrence A. Leitner, James A. Reinartz, Donald H. Les

Field Station Bulletins

We describe the locations and habitat characteristics of 10 of the 14 known populations of Aster furcatus in Wisconsin. We were unable to identify any particularly unusual features of A. furcatus habitats which could be related to its rarity. The rarity of forked aster is probably not related to specialized habitats, but is most likely the result of requirements for moderate disturbance, inability to withstand competition, poor reproduction from seed, and low genetic variance.


Bugs! Bugs! Bugs! Not Just For Children Anymore! Seeking A National Perspective, David L. Kulhavy Oct 1991

Bugs! Bugs! Bugs! Not Just For Children Anymore! Seeking A National Perspective, David L. Kulhavy

Faculty Publications

Insects as interpretive tools are an invaluable resource for the interpreter. There are many uses, from live insect displays to pinned specimens to the use of insects puppets in classrooms, conferences or other interpretive arenas. In this paper, the use of mealworms, the monarch butterfly as a candidate for our national insect, and the demonstration of insect locomotion are presented. The key to successful interpretation using insects is to encourage audience participation, exude enthusiasm, and promote the use of insects as an easy resource to acquire.


Nutrient Chemistry Of A Reconstructed Forested Wetland In Rowan County, Kentucky, David M. Blevins May 1991

Nutrient Chemistry Of A Reconstructed Forested Wetland In Rowan County, Kentucky, David M. Blevins

Morehead State Theses and Dissertations

A thesis presented to the faculty of the Department of Biological and Environmental Sciences at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by David M. Blevins on May 10, 1991.


Vascular Plants Of The Sapa Bog, Joanne Kline Apr 1991

Vascular Plants Of The Sapa Bog, Joanne Kline

Field Station Bulletins

The vascular plants occurring within an acidic black spruce bog and its surrounding moat in southeastern Wisconsin are listed with observational notes on abundance and habitat. Of the 156 species, at least 20 are at or near the southern extent of their range, and four are currently State designated species of Special Concern.


Vegetation Development In Old Fields At The Uwm Field Station, Beth A. Krause, Diane De Steven Apr 1991

Vegetation Development In Old Fields At The Uwm Field Station, Beth A. Krause, Diane De Steven

Field Station Bulletins

We studied abandoned fields at the UW-Milwaukee Field Station in 1990 to determine how previous cropping history and management practices have influenced present vegetation composition. Eleven fields were sampled for herbaceous species presence and coverage, and species compositions were analyzed by Detrended Correspondence Analysis ordination. Nearly all the fields were abandoned in the mid-1960's. Standing crop biomass of the herbaceous vegetation peaked in late July. Fields with very recent management (last 5 years) in the form of mowing or burning differed in species composition from fields without recent management and fields that have been unmanaged since abandonment. Species such as …


Silviculture And The Red-Cockaded Woodpecker: Where Do We Go From Here?, David Kulhavy, W. G. Ross, Richard N. Conner, James H. Mitchell, Gloria Maples Chrismer Jan 1991

Silviculture And The Red-Cockaded Woodpecker: Where Do We Go From Here?, David Kulhavy, W. G. Ross, Richard N. Conner, James H. Mitchell, Gloria Maples Chrismer

Faculty Publications

Recent standards and guidelines for the protection and management of red-cockaded woodpecker habitat within 3/4 mi of colony sites, and also thinning within colonies to reduce basal area and midstory will have a significant effect on National Forest lands. The relation of these thinnings to forest pest management will be examined as well as the area of forest involved. Current fire regulations in relation to prescribed burns and potential fuel buildup will be examined. Plans for research, including disturbances, hazard, and risk rating for southern pine beetle and landscape changes will be presented.


Physiology Of Red-Cockaded Woodpecker Cavity Trees: Implications For Management, William G. Ross, David Kulhavy, Richard N. Conner, Jianghua Sun Jan 1991

Physiology Of Red-Cockaded Woodpecker Cavity Trees: Implications For Management, William G. Ross, David Kulhavy, Richard N. Conner, Jianghua Sun

Faculty Publications

Resin flow and tree moisture stress, frequently used as indicators of pine susceptibility to pine bark beetle (Dendroctonus frontalis Zimm.) attack, were measured in loblolly (Pinus taeda L.) and shortleaf (P. echinata Mill.) pines red-cockaded woodpecker [Picoides boreal& (Vieillot)] cavity trees in the Angelina and Davy Crockett National Forests in eastern Texas. No differences in moisture stress were found, whereas resin flow between different types of cavity trees and control or potential trees varied by site and species. It was concluded that effects of red-cockaded woodpecker activity on host tree susceptibility to southern pine beetle will vary by site, tree …


Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta Jan 1991

Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta

Journal of the Minnesota Academy of Science

One of the most significant challenges to Minnesota forestry in the 1990s will be responding to growing public concern about relationships between forestry in Minnesota and global and national environmental issues (e.g., protecting biological diversity, tropical deforestation). Influential citizens and public interest groups are asking penetrating questions about the effects of forest management and timber harvesting on biological diversity, and about parallels between tropical deforestation and timber harvesting in Minnesota.

This article examines some of the relationships between Minnesota forestry and biological diversity. It also describes what is being done, and what needs to be done, to protect biological diversity. …


Invertebrate Responses To The Effects Of Thinning And Understory Burning In A Canyon Live Oak (Quercus Chrysolepis) Forest In The San Bernardino Mountains, California, Marcia Gay Narog Jan 1991

Invertebrate Responses To The Effects Of Thinning And Understory Burning In A Canyon Live Oak (Quercus Chrysolepis) Forest In The San Bernardino Mountains, California, Marcia Gay Narog

Theses Digitization Project

No abstract provided.


Feeding By Reticulitermes Spp., Deborah A. Waller Jan 1991

Feeding By Reticulitermes Spp., Deborah A. Waller

Biological Sciences Faculty Publications

No abstract provided.


Remnant Vegetation On Farms Is A Valuable Resource, Richard Hobbs, Ken Wallace Jan 1991

Remnant Vegetation On Farms Is A Valuable Resource, Richard Hobbs, Ken Wallace

Journal of the Department of Agriculture, Western Australia, Series 4

Retention of native vegetation on farms is important both from an ecological and an economic point of view. Productivity in the paddocks ultimately will depend on the retention and replacement of trees and shrubs in the landscape. Remnants of native vegetation can play their part by helping to ensure the long-term viability of the agricultural system, as well as greatly enhancing the quality of life for those living on the land.