Results 251 to 260 of about 26,254 (308)
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Science China Earth Sciences, 2020
Prochlorococcus, a group of marine cyanobacteria, is the most abundant and smallest oxygen-producing photosynthetic microorganism. It is mainly distributed in the euphotic zone of tropical and subtropical oceans and is a key participant in the marine biogeochemical cycle.
Nianzhi Jiao, Jiao Nianzhi
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Prochlorococcus, a group of marine cyanobacteria, is the most abundant and smallest oxygen-producing photosynthetic microorganism. It is mainly distributed in the euphotic zone of tropical and subtropical oceans and is a key participant in the marine biogeochemical cycle.
Nianzhi Jiao, Jiao Nianzhi
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On Ecotype Urban Heritage Tourism
Advanced Materials Research, 2011 Based on an analysis of the status of urban heritage in urban ecosystem and its relationship with urban tourism development on the theory of ecological niche, this paper argues that urban heritage is a kind of nature-based human ecology, merging with natural ecology through the interaction of humans with nature, and urban heritage tourism is a kind of ...
Jin Hua Luo, Shu Qi Yuan
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Ecotype Division and Chemical Diversity of Cynomorium songaricum from Different Geographical Regions
Molecules, 2022 Cynomorium songaricum is an important endangered plant with significant medicinal and edible values. However, the lack of resources and quality variation have limited the comprehensive developments and sustainable utilization of C. songaricum.
Xinke Zhang, Xiao Sun, Yujing Miao
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Shrub Ecotypes in a Salt Desert
Nature, 1971A SALINITY gradient extends from the highly saline beaches of the Great Salt Lake of Utah to the surrounding non-halomorphic soils, with a correlated vegetation gradient in which a succession of plant communities grows in concentric zones. The chief communities, in decreasing order of soil salinity, are dominated by (1) Salicornia–Allenrolfea; (2 ...
P J, Goodman, M M, Caldwell
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Malaria Ecotypes and Stratification
2012To deal with the variability of malaria, control programmes need to stratify their malaria problem into a number of smaller units. Such stratification may be based on the epidemiology of malaria or on its determinants such as ecology. An ecotype classification was developed by the World Health Organization (WHO) around 1990, and it is time to assess ...
Schapira, A., Boutsika, K.
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Biological Reviews, 1944
Summary1 Ecotypic differentiation is hereditary differentiation in respect of morphological and/or physiological attributes occasioned by the selective action of the habitat environment.2. Ecotypic differentiation in response to one set of environmental conditions is liable to proceed independently of that in response to another set of conditions ...
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Summary1 Ecotypic differentiation is hereditary differentiation in respect of morphological and/or physiological attributes occasioned by the selective action of the habitat environment.2. Ecotypic differentiation in response to one set of environmental conditions is liable to proceed independently of that in response to another set of conditions ...
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Thermal properties of big bluestem as affected by ecotype and planting location along the precipitation gradient of the Great Plains [PDF]
Energy, 2014 The objective of this research was to study the effect of ecotype and planting location on thermal properties of big bluestem. Three big bluestem ecotypes (CKS, EKS, ILL) and a cultivar (KAW) were harvested in 2010 from four locations (Colby, Hays, and ...
Ke Zhang +2 more
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Ecotype, ecospecies, and macroevolution
Experientia, 1948The combined efforts of taxonomists and geneticists have succeeded to a considerable extent in solving that part of the problem of evolution which concerns the subspecific level. The detailed work of innumerable taxonomists following in the footsteps of Kleinschmidt K.
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Weed Science, 1971
Seed of common ragweed (Ambrosia artemisiifoliaL.) ecotypes were collected from 12 locations in North America and were planted at Ithaca, New York. Plants from seed collected in the northern latitudes flowered earlier and produced less vegetative growth.
C. T. Dickerson, R. D. Sweet
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Seed of common ragweed (Ambrosia artemisiifoliaL.) ecotypes were collected from 12 locations in North America and were planted at Ithaca, New York. Plants from seed collected in the northern latitudes flowered earlier and produced less vegetative growth.
C. T. Dickerson, R. D. Sweet
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Nature, 1926
IN Hereditas, Bd. vi. (1925), which has just come to hand, there is an extremely interesting paper by Gote Turesson on “Plant Species in Relation to Habitat and Climate.” This author has grown in Sweden upwards of 10,000 cultures of various types and races of certain widely distributed plants, in order to ascertain the precise nature of the forms ...
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IN Hereditas, Bd. vi. (1925), which has just come to hand, there is an extremely interesting paper by Gote Turesson on “Plant Species in Relation to Habitat and Climate.” This author has grown in Sweden upwards of 10,000 cultures of various types and races of certain widely distributed plants, in order to ascertain the precise nature of the forms ...
openaire +1 more source