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pro vyhledávání: '"Ellen Cheng"'
Autor:
Ellen Cheng, 鄭雅倫
89
Manganese Tetrakis(N-methyl-4-pyridyl)porphine ( Mn(4-TMPyP) ) selectively catalyzes the oxidation of nerol and geraniol at the hydroxyl group to form aldehydes, neral and geranial, respectively. The products keep the original stereostructure
Manganese Tetrakis(N-methyl-4-pyridyl)porphine ( Mn(4-TMPyP) ) selectively catalyzes the oxidation of nerol and geraniol at the hydroxyl group to form aldehydes, neral and geranial, respectively. The products keep the original stereostructure
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/81662337130672369785
Publikováno v:
Oryx. 51:701-708
Across much of Asia protected areas have a dual objective of conserving biodiversity and supporting rural and indigenous livelihoods. For the red panda Ailurus fulgens and other sensitive species of concern, even limited anthropogenic disturbance may
Publikováno v:
Fire Ecology. 11:119-136
Forest fires fundamentally shape the habitats available for wildlife. Current predictions for fire under a warming climate suggest larger and more severe fires may occur, thus challenging scientists and managers to understand and predict impacts of f
Publikováno v:
Molecular Ecology. 23:4617-4630
Hybridization drives the evolutionary trajectory of many species or local populations, and assessing the geographic extent and genetic impact of interspecific gene flow may provide invaluable clues to understand population divergence or the adaptive
Autor:
Joel Berger, Ellen Cheng, Aili Kang, Michael Krebs, Lishu Li, Zhao Xin Lu, null Buqiong, null Buzhou, George B. Schaller
Publikováno v:
Journal of Mammalogy. 95:638-645
Extreme high and low altitudes and polar environments constrain the distributional limits of terrestrial mammals. In Central Asia, vegetation on the Tibetan Plateau is limited at elevations above ∼5,500 m. Although aspects of the spatial ecology of
Autor:
Craig Groves, Herbert C. Frost, Elaine F. Leslie, Joel Berger, Scott M. Gende, Kent H. Redford, Rodrigo A. Medellín, Ellen Cheng, William A. Karesh, Steve Zack, Gary E. Machlis, Michael Soukup, Steven L. Cain, Reed F. Noss, David S. Wilcove, John Francis, Peter Dratch, Kevin Ellison
Publikováno v:
Conservation Biology. 28:4-12
Public agencies sometimes seek outside guidance when capacity to achieve their mission is limited. Through a cooperative agreement and collaborations with the U.S. National Park Service (NPS), we developed recommendations for a conservation program f
Publikováno v:
Ecology and Evolution
Understanding population dynamics requires reliable estimates of population density, yet this basic information is often surprisingly difficult to obtain. With rare or difficult‐to‐capture species, genetic surveys from noninvasive collection of h
Autor:
Joel Berger, Ellen Cheng, Mark Hebblewhite, Aili Kang, Lishu Li, Michael Krebs, George B. Schaller
Publikováno v:
Scientific Reports
In polar environments, a lack of empirical knowledge about biodiversity prompts reliance on species distribution models to predict future change, yet these ignore the role of biotic interactions including the role of long past human exploitation. To
Autor:
Mark E. Ritchie, Ellen Cheng
Publikováno v:
Oecologia. 147:546-555
Allometric foraging theory suggests that herbivores of greatly differing size should co-exist through niche segregation, but a few studies of large-small herbivore foraging relationships have reported competitive interactions. This study addresses th
Publikováno v:
Molecular Ecology
With climate warming, the ranges of many boreal species are expected to shift northward and to fragment in southern peripheral ranges. To understand the conservation implications of losing southern populations, we examined range-wide genetic diversit