Jump to Main Content
- Lesica, Peter
- Ecological applications 1992 v.2 no.4 pp. 411-421
- Howellia aquatilis; aeration; aquatic plants; drawdown; extinction; germination; habitat conservation; habitats; life history; mineral soils; organic soils; peat; photoperiod; planning; ponds; population size; rare species; regression analysis; risk; seed dispersal; seeds; spring; temperature; vigor; water quality; wetlands; Montana; Pacific States
- ... Howellia aquatilis is an annual aquatic plant of ephemeral ponds. It is considered extirpated or endangered throughout its range in the United States Pacific Northwest. I studied populations in the Swan Valley of Montana to determine life history traits and ecological attributed in order to influence planning decisions on lands managed for multiple use. Germination trials demonstrated that seeds o ...
- Ohtonen, Rauni; Munson, Alison; Brand, David
- Ecological applications 1992 v.2 no.4 pp. 363-375
- bacteria; bags; canopy; carbon; carbon nitrogen ratio; community structure; ecosystems; environmental factors; fungi; glass; herbicides; light intensity; microbial biomass; microbial communities; mineral soils; nutrient availability; organic horizons; plant communities; plant litter; planting; silvicultural practices; soil microorganisms; soil nutrients; soil temperature; trees; vegetation
- ... Five years after planting and initial treatment, we examined the response of a microbial community to three intensive silvicultural practices: soil surface modification (scarification), fertilization, and control of competing vegetation by herbicide. We correlated microbial response with changes in environmental conditions following treatment, including soil temperature and moisture, total and ava ...