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Wu - 2013 - Key concepts and research topics in landscape ecol

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L<strong>and</strong>scape Ecol (<strong>2013</strong>) 28:1–11 5<br />

Fig. 2 Temporal changes<br />

<strong>in</strong> the number of citations to<br />

the top 20 most-cited papers<br />

published <strong>in</strong> L<strong>and</strong>scape<br />

Ecology (data from the ISI<br />

Web of Science,<br />

http://apps.webofknowledge.com/;<br />

accessed on<br />

December 5, 2012). Each<br />

curve represents a 3-year<br />

mov<strong>in</strong>g average so as to<br />

smooth out annual fluctuations<br />

<strong>in</strong> the number of cites<br />

to each article<br />

(heterogeneity, spatial pattern, pattern analysis/metric,<br />

patch, <strong>and</strong> fragmentation), the percentage of papers<br />

us<strong>in</strong>g these words rises to 84 % (without elim<strong>in</strong>at<strong>in</strong>g<br />

double-account<strong>in</strong>g). Scale <strong>and</strong> scal<strong>in</strong>g together<br />

appeared <strong>in</strong> about 50 % of the published papers<br />

(Fig. 3). These are impressive numbers.<br />

It is also important to notice that, while ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g<br />

their dom<strong>in</strong>ant status, most of the well-established terms<br />

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