Zobrazeno 1 - 10
of 18
pro vyhledávání: '"John R. Probst"'
Publikováno v:
Biological Conservation. 143:1159-1167
Habitat colonization and abandonment affects the distribution of a species in space and time, ultimately influencing the duration of time habitat is used and the total area of habitat occupied in any given year. Both aspects have important implicatio
Publikováno v:
Forest Ecology and Management. 258:1093-1101
Forest planners must evaluate how spatiotemporal changes in habitat amount and configuration across the landscape as a result of timber management will affect species' persistence. However, there are few long-term programs available for evaluation. W
Publikováno v:
Landscape Ecology. 23:467-480
Kirtland’s warblers (Dendroica kirtlandii) persist in a naturally patchy environment of young, regenerating jack pine forests (i.e., 5–23 years old) created after wildfires and human logging activities. We examined how changing landscape structur
Publikováno v:
Journal of Field Ornithology. 78:100-108
The abili to age individual birds visually in the field based on pluma e variation could provide important demographic andTiogeographical information. We describe an a proach to intr ages from a distribution of plumage scores of free-rangin male Kirt
Autor:
Mike Worland, John R. Probst, Jerry Weinrich, Kenneth R. Ennis, Phillip Huber, Deahn M. Donner
Publikováno v:
Journal of Field Ornithology. 76:50-60
We compared transect counts used for the annual official count of male Kirtland's Warblers (Dendroica kirtlandii) to an observation-based mapping method of individually sighted males in 155 stands over 10 yrs. The annual census count almost tripled f
Autor:
Deahn M. DonnerWright, John R. Probst
Publikováno v:
The American Midland Naturalist. 149:320-334
Researchers and managers have suggested that a narrow range of ground-cover structure resulting from fire might be necessary for suitable Kirtland`s warbler nesting conditions. Yet, Kirtland`s warblers have bred successfully in numerous unburned stan
Publikováno v:
Canadian Journal of Zoology. 77:989-1000
We investigated how environmental gradients measured along the St. Croix River in Minnesota and Wisconsin, U.S.A., influenced the turtle assemblage. Among seven species, the five most common species were generalists and had wide distributions through
Publikováno v:
Conservation Biology. 9:1380-1395
Fragmentation of breeding habitat in North America has been implicated in the decline of forest-nesting, Neotropical migrant birds. We used a comparative approach to examine the effects of fragmentation on three forest-nesting migrants: Ovenbird (Sei
Autor:
John R. Probst, Jerry Weinrich
Publikováno v:
Landscape Ecology. 8:257-271
The population of male Kirtland's warbler (Dendroica kirtlandii) in the breeding season has averaged 206 from 1971 to 1987. The Kirtland's warbler occupies dense jack pine (Pinus banksiana) barrens from 5 to 23 years old and from 1.4 to 5.0 m high, f
Publikováno v:
Forest Ecology and Management. 49:43-60
Probst, J.R., Rakstad, D.S. and Rugg, D.J., 1992. Breeding bird communities in regenerating and mature broadleaf forests in the USA Lake States. For. Ecol. M, anage., 49: 43-60. When Lake States aspen tree canopy is removed by clearcut harvest, bird