Table 2. Changes in landscape metrics recorded over time for six study areas. Analyses were derived from satellite remote sensing imagery, using FRAGSTATS (see text). Adapted from Newton and Tejedor (2011).
| |
| |
|
Study area |
Year |
Mean patch size (ha) |
Total edge length (m) |
Total core area (ha) |
| |
|
Veracruz, Mexico |
|
|
1973 |
140 |
3091320 |
44161 |
|
1990 |
74 |
6334110 |
41404 |
|
1999 |
28 |
6345420 |
21772 |
|
Oaxaca, Mexico |
|
|
1979 |
100 |
64070 |
514323 |
|
1989 |
23 |
105901 |
224689 |
|
1999 |
41 |
106689 |
386259 |
|
2005 |
47 |
89516 |
428650 |
|
Chiapas, Mexico |
|
|
1990 |
13 |
113509 |
277821 |
|
2000 |
14 |
110960 |
275821 |
|
2005 |
14 |
111197 |
274287 |
|
Central Chile |
|
|
1975 |
9 |
44400 |
76901 |
|
1985 |
6 |
49838 |
29923 |
|
1999 |
6 |
50769 |
23500 |
|
2008 |
6 |
41898 |
26149 |
|
Salta, Argentina |
|
|
1977 |
1075 |
8540 |
682693 |
|
1987 |
758 |
15826 |
614457 |
|
1993 |
529 |
15455 |
581090 |
|
2006 |
330 |
14873 |
506464 |
|
Nahuel Huapi, Argentina |
|
|
1973 |
9 |
79360 |
115080 |
|
1985 |
14 |
52587 |
135654 |
|
1997 |
12 |
62150 |
145918 |
|
2003 |
14 |
52021 |
132901 |
| |