Spatial Heterogeneity and Population Stability: Some Evolutionary Consequences

Oikos ◽  
1980 ◽  
Vol 35 (2) ◽  
pp. 165 ◽  
Author(s):  
Nils Chr. Stenseth
Keyword(s):  
Spatial Heterogeneity ◽  
Population Stability ◽  
Evolutionary Consequences

Spatial Heterogeneity and Population Stability

Nature ◽  
1974 ◽  
Vol 248 (5443) ◽  
pp. 83-83 ◽  
Author(s):  
JOHN H. STEELE
Keyword(s):  
Spatial Heterogeneity ◽  
Population Stability

scholarly journals Spatial heterogeneity of an ecologically relevant environment accelerates diversification and adaptation

2019 ◽  
Author(s):  
Stineke van Houte ◽  
Dan Padfield ◽  
Pedro Gomez ◽  
Adela M. Lujan ◽  
Michael A. Brockhurst ◽  
...  
Keyword(s):  
Spatial Heterogeneity ◽  
Environmental Heterogeneity ◽  
Empirical Support ◽  
Microbial Populations ◽  
Resource Heterogeneity ◽  
Relevant Context ◽  
Key Driver ◽  
Phenotypic Diversification ◽  
Evolutionary Consequences ◽  
Resource Specialists

AbstractSpatial heterogeneity is a key driver for the evolution of resource specialists and has been shown to both promote and constrain the rate of adaptation. However, direct empirical support for these evolutionary consequences of spatial heterogeneity comes from simplified laboratory environments. Here we address how spatial structure, through its effect on resource heterogeneity, alters diversification and adaptive evolution of the soil bacterium Pseudomonas fluorescens in an ecologically relevant context: soil-based compost. Our data show that environmental heterogeneity can both promote phenotypic diversification and accelerate adaptation. These results suggest that environmental disturbance, which can decrease spatial heterogeneity, may limit diversification and adaptation of microbial populations.

Soil Spatial Heterogeneity and Systems of Agriculture

2015 ◽  
Vol 2 (1) ◽  
pp. 50-59
Author(s):  
V. Medvedev
Keyword(s):  
Spatial Heterogeneity ◽  
Soil Cover ◽  
Regular Grid ◽  
Resource Saving ◽  
The Third ◽  
Soil Spatial Heterogeneity ◽  
Agriculture Systems ◽  
Zonal Soils

Aim. To consider soil continuality and discreteness as features of heterogeneity manifestation in a soil cover, important for construction of agriculture systems. Methods. Geostatistical research of soil spatial heterogeneity, revealing the contours of a fi eld with various parameters of fertility. Results. The use of principles of precise agriculture and inspection of indicative properties of fi eld soils using a regular grid allowed to divide a fi eld into contours with three levels of fertility: the fi rst one is characterized by optimal or close to optimum properties which allows refusing from (or reducing substantially) tillage, introduction of fertilizers or chemical ameliorates; the second one has average parameters of fertility corresponding to zonal soils and demands the application of zonal technologies; the third one (with the worst parameters of fertility) presupposes regular use of the improved technologies. Conclusions. The introduction of precise agriculture will allow replacing a traditional zonal system with thenew which is soil-protecting and resource-saving one.

Temporo-spatial heterogeneity of dominant fish species in the Jiaozhou Bay community

2017 ◽  
Vol 24 (5) ◽  
pp. 1091
Author(s):  
Jia WO ◽  
Binduo XU ◽  
Ying XUE ◽  
Yiping REN ◽  
Chongliang ZHANG
Keyword(s):  
Spatial Heterogeneity ◽  
Fish Species ◽  
Jiaozhou Bay ◽  
Dominant Fish
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