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Full-Text Articles in Life Sciences
A Preliminary Survey Of The Bryophytes Of The Sapa Bog, Frank D. Bowers, Joanne Kline
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
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
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.
Vascular Plants Of The Sapa Bog, Joanne Kline
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
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 …