Zobrazeno 1 - 10
of 102
pro vyhledávání: '"James M. Peek"'
Northern hemisphere ungulates occupy a variety of habitats of varying degrees of permanency. Populations that occupy drier areas must contend with different moisture patterns between years, but vegetation is relatively permanent, pending large-scale
Autor:
James M. Peek
Publikováno v:
Western North American Naturalist. 75:446-459
Nutrient content and weight of current year's growth of Cercocarpus ledifolius Nuttall and Physocarpus malvaceus (Greene) Kuntze in central Idaho were obtained during early July in the years 1987–2007. The purpose of this work was to determine whet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4b8f5a681a0c59b4bb9f7ad30fc9d98
https://doi.org/10.3398/064.075.0403
https://doi.org/10.3398/064.075.0403
Autor:
James M. Peek
Publikováno v:
Northwest Science. 88:129-139
Current year's growth (biomass) and nutrient levels of bluebunch wheatgrass (Pseudoroegneria spicata), a highly palatable bunchgrass in western North America, were evaluated over 20-year and 10-year periods, respectively. Three study sites representi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99beb6c130b11d04bef84f405053aa70
https://doi.org/10.3955/046.088.0207
https://doi.org/10.3955/046.088.0207
Autor:
James M. Peek
Publikováno v:
Northwest Science. 84:386-393
Bluebunch wheatgrass (Pseudoregneria spicata [Pursh] A. Love) is a major forage species for mountain sheep (Ovis canadensis) in central Idaho. Observed condition of this forage species is high, prompting an investigation of herbivory levels and subse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d41caf5810014286bf94b6df426baac
https://doi.org/10.3955/046.084.0408
https://doi.org/10.3955/046.084.0408
Autor:
James M. Peek
Publikováno v:
International Journal of Quantum Chemistry. 36:545-552
Approximate wave functions are used to evaluate the excitation energy moments of dipole oscillator strength sums for molecules containing hydrogen. For moments that have sum-rule expressions requiring only the initial-state wave function, these expec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e6b4c1f9b4fbd05a0dae2835d9cb67f
https://doi.org/10.1002/qua.560360855
https://doi.org/10.1002/qua.560360855
Publikováno v:
Journal of Wildlife Management. 70:283-294
We used habitat-selection data from a reintroduced population of elk (Cervus elaphus) in northeastern Nevada, USA, to develop a resource-selection function to adjust nutritional carrying capacity estimates. Constrained estimates provide population le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e21e3e90fe5a1fec7450ad09bf480f89
https://doi.org/10.2193/0022-541x(2006)70[283:eoesrn]2.0.co
https://doi.org/10.2193/0022-541x(2006)70[283:eoesrn]2.0.co
Autor:
James M. Peek, Jeffrey L. Beck
Publikováno v:
Rangeland Ecology & Management. 58:135-147
We evaluated elk (Cervus elaphus), mule deer (Odocoileus hemionus), cattle (Bos taurus), and domestic sheep (Ovis aries) diet composition, diet overlap, and forage selection on aspen (Populus tremuloides Michaux)–sagebrush (Artemisia spp. L.) summe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cc0df4fe56e5a84f6b3368ad7e8d6d7
https://doi.org/10.2111/03-13.1
https://doi.org/10.2111/03-13.1
Autor:
James M. Peek, Jeffrey L. Beck
Publikováno v:
Rangeland Ecology & Management. 57:376-383
The effects of grazing by cattle (Bos taurus) and recently reestablished elk (Cervus elaphus) on mountain meadows in northeastern Nevada are poorly understood. We evaluated production, use, and species richness of herbage standing crop in and outside
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::371b0c0616b81131833c555ebfa05972
https://doi.org/10.2111/1551-5028(2004)057[0376:hpauuo]2.0.co
https://doi.org/10.2111/1551-5028(2004)057[0376:hpauuo]2.0.co
Publikováno v:
Forest Ecology and Management. 152:259-273
Understory community structure of conifer plantations and naturally regenerated stands on north and south aspects is assessed in stands up to 100 years following initial overstory removal on an industrial forest of northern Idaho. Industrial forests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fc184e140d0067fc58e8818d3d8c3af
https://doi.org/10.1016/s0378-1127(00)00608-3
https://doi.org/10.1016/s0378-1127(00)00608-3
Publikováno v:
Forest Ecology and Management. 150:267-277
Forest canopy development is known to influence understory biomass relationships. An 85,268 ha area in southcentral Oregon was examined for changes in overstory canopy closure using 1953 and 1988 aerial and satellite imagery and a geographic informat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9577d73baf3ec173398d790f56e55880
https://doi.org/10.1016/s0378-1127(00)00585-5
https://doi.org/10.1016/s0378-1127(00)00585-5