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Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
Female Dominance Among Purple Finches (Carpodacus Purpureus) In Winter Flocks, James W. Popp
Female Dominance Among Purple Finches (Carpodacus Purpureus) In Winter Flocks, James W. Popp
Field Station Bulletins
The dominance of females over males in winter flocks is rare. In this paper, I report on female dominance over males in winter flocks of Purple Finches (Carpodacus purpureus). Females won nearly all observed intersexual encounters and also differed from males in their use of agonistic displays. Female dominance has been reported for other species in the genus Carpodacus, but reasons for the occurrence of female dominance in this genus are unknown.
Three Decades Of Change In Three Southeastern Wisconsin Woodlots, Lawrence A. Leitner
Three Decades Of Change In Three Southeastern Wisconsin Woodlots, Lawrence A. Leitner
Field Station Bulletins
Three upland woodlots in southeastern Wisconsin, originally sampled by the Plant Ecology Lab of UW-Madison in 1949, were resampled in 1981. In general, red and white oaks were being replaced by more shade-tolerant species. Two of the sites, Zirbe's Woods and Petrifying Springs Woods, appear headed for complete domination by sugar maple. Thompson Woods, where maple was absent, was at an earlier successional stage. In Thompson Woods, basswood and white ash were becoming dominant.
Terrestrial Isopods At The Uwm Field Station, Joan P. Jass, Barbara Klausineier
Terrestrial Isopods At The Uwm Field Station, Joan P. Jass, Barbara Klausineier
Field Station Bulletins
Six species of terrestrial isopods were found in a preliminary survey of appropriate habitats at the UWM Field Station. Each species is characterized briefly with distinctive features of its morphology and life cycle.
Range Extension For Burrowing Crayfish Procambarus (Girardiella) Gracilis (Bundy), Joan P. Jass
Range Extension For Burrowing Crayfish Procambarus (Girardiella) Gracilis (Bundy), Joan P. Jass
Field Station Bulletins
The range of Procambarus (Girardiella) gracilis (Bundy) runs in a fairly narrow band southwest of Wisconsin through Illinois, Iowa, Missouri and Arkansas to the eastern edges of Nebraska, Kansas, Oklahoma and Texas. It extends into Wisconsin only in the southeastern corner of the state, having been previously reported only as far north as Milwaukee County. Within this range Hobbs and Rewolinski (1985) have described its habitat to be regions that were originally prairies.
Seedbanks And Vegetation Of Disturbed Urban Soils, Lynn Young Janik, Forest Stearns
Seedbanks And Vegetation Of Disturbed Urban Soils, Lynn Young Janik, Forest Stearns
Field Station Bulletins
The composition of urban seedbanks differed considerably from that of the established vegetation. Annuals were more abundant in the seedbank than in the vegetation, while perennials were more abundant in the vegetation. Many species were present in the seedpools and not in the vegetation, and the converse was also true. Seed dispersal and/or longevity was demonstrated by the presence of ten species, not growing in the vegetation, that emerged from the seedbanks of five or more of the six sites. In the vegetation, as in the seedbanks, introduced rather than native plants were the most common, including: bluegrass (Poa pratensis), …
Purple Loosestrife (Lythrum Salicaria): Its Status In Wisconsin And Control Methods, James A. Reinartz, James W. Popp, Margaret A. Kuchenreuther
Purple Loosestrife (Lythrum Salicaria): Its Status In Wisconsin And Control Methods, James A. Reinartz, James W. Popp, Margaret A. Kuchenreuther
Field Station Bulletins
Data were gathered in 1984 on the distribution, size, and habitat of populations of purple loosestrife in Wisconsin. Lythrum salicaria was found throughout Wisconsin, but most populations were still small and amenable to eradication with spot applications of herbicide. We compared the effectiveness of three dosages of glyphosate herbicide for eradicating small populations of purple loosestrife. High dosage treatments killed a slightly higher percentage of loosestrife than low dosage, but also caused much greater destruction of desirable perennial vegetation. The increased disturbance associated with high dosage, led to a high density of purple loosestrife seedlings in the following year. Low …
The Distribution Of Sarracenia Purpurea (Pitcher Plant) In Southeastern Wisconsin Fens: The Influence Of Ph And Nutrients, Teresa A. Golembiewski, Forest Stearns
The Distribution Of Sarracenia Purpurea (Pitcher Plant) In Southeastern Wisconsin Fens: The Influence Of Ph And Nutrients, Teresa A. Golembiewski, Forest Stearns
Field Station Bulletins
Temperature, pH, alkalinity, total-N, total-P, K, Na, Ca and Mg levels were measured in groundwater at the Pickerel Lake and Ottawa Lake calcareous fens and the Cedarburg Bog patterned fen. The two calcareous fens were similar in all chemical characteristics. Alkalinity, pH and Mg were significantly lower in the patterned fen when compared to the calcareous fens, while the other chemical parameters were similar. Each of these southeastern Wisconsin fens supported Sarracenia purpurea (pitcher plant). When the characteristics of the groundwater of the areas that supported S. purpurea were compared with those of areas that did not support S. purpurea, …