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Fig. 3.2 Percentage of published papers in the journal Landscape Ecology between 1987 and
2012 which contain important landscape ecological terms in their titles, keywords, and abstracts:
a ranking according to the relative frequency of occurrence, and b changes in relative frequency
of occurrence over time (calculated by dividing the 1987-2012 period into 5 segments)
Hobbs 2007 ). Although landscape ecology has long considered humans and their
activities as part of the landscape, its most salient feature that distinguishes itself
from other ecological fields (e.g., population, community, and ecosystem ecology)
is its explicit emphasis on spatial heterogeneity or pattern (Wu 2013a ). This
emphasis on heterogeneity should not be interpreted as stressing ''structure'' only
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