Zobrazeno 1 - 6
of 6
pro vyhledávání: '"L. David Humphrey"'
Autor:
Eugene W. Schupp, L. David Humphrey
Publikováno v:
Journal of Arid Environments. 58:405-422
The alien grass Bromus tectorum dominates stable annual-plant communities that have replaced native shrub-perennial grass communities over much of the semi-arid western United States. We conducted field competition experiments between B. tectorum and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ed9018e162fcf43e59af752dd78dd24
https://doi.org/10.1016/j.jaridenv.2003.11.008
https://doi.org/10.1016/j.jaridenv.2003.11.008
Autor:
L. David Humphrey, E. W. Schupp
Publikováno v:
Restoration Ecology. 10:88-95
Local populations of plants are likely to be better adapted to a site than populations from elsewhere. Thus, local seeds should yield higher survival in restoration attempts than commercial seed stocks. We compared seedling survival from locally and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea92060519794a2fd7282b910d44018c
https://doi.org/10.1046/j.1526-100x.2002.10109.x
https://doi.org/10.1046/j.1526-100x.2002.10109.x
Autor:
L. David Humphrey, David A. Pyke
Publikováno v:
Canadian Journal of Botany. 79:1122-1126
Many plants exploit patchy resources through clonal foraging. Plants established in field plots were used to determine if Elymus lanceolatus ssp. lanceolatus (Scribner et J.G. Smith) Gould (thickspike wheatgrass) showed a clonal foraging response to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6e754e97412a615746d389df9566a69
https://doi.org/10.1139/b01-091
https://doi.org/10.1139/b01-091
Autor:
L. David Humphrey, David A. Pyke
Publikováno v:
Canadian Journal of Botany. 79:1122-1126
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9ef5d287967b9f4e07164b7d855742c
https://doi.org/10.1139/cjb-79-9-1122
https://doi.org/10.1139/cjb-79-9-1122
Autor:
David A. Pyke, L. David Humphrey
Publikováno v:
Journal of Ecology. 86:854-865
Summary The advantages of guerrilla and phalanx growth for the guerrilla Elymus lanceolatus ssp. lanceolatus and phalanx E. l. ssp. wawawaiensis were evaluated over 2 years in two taxon mixtures with a range of densities of each subspecies and under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5251fa12490fe499926db595dd1349f
https://doi.org/10.1046/j.1365-2745.1998.8650854.x
https://doi.org/10.1046/j.1365-2745.1998.8650854.x
Autor:
L. David Humphrey
Publikováno v:
Vegetatio. 57:91-101
Cover data for plant species on eight environmentally similar sites that were each burned in a different year (from 2 to 36 years ago) were used to construct a composite sequence of vegetational change after fire on Artemisia-grassland sites in south
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::632e35972dfba7ba4b0175f3d127948a
https://doi.org/10.1007/bf00047303
https://doi.org/10.1007/bf00047303