Study areas
A team of researchers, postdocs, graduate, and undergraduate students are synthesizing results from four initially independent projects on secondary forest regeneration in central Amazonia, Brazil, Costa Rica, and Chiapas, Mexico. These studies provide a wide array of successional sites, encompassing a range of successional stages, climatic gradients, and land-use histories in tropical forest ecosystems.
Annually monitored chronosequence sites
Study Location | Previous Use | Landscape Matrix | Number of Plots | Initial Stand Age | Plot Size | Year Initiated |
---|---|---|---|---|---|---|
NE Costa Rica | No prior use | Forest | 2 | Mature Forest | 1 ha, 5 cm | 2005 |
NE Costa Rica | Pasture | Agricultural matrix and Forest | 2 | 11 | 1 ha, 5 cm | 2005 |
NE Costa Rica | Pasture | Agricultural matrix and Forest | 4 | 12, 15, 20, 25 | 1 ha, 5 cm | 1997 |
NE Costa Rica | Cleared, no pasture | Agricultural matrix and Forest | 4 | 1, 15, 15, 25 | 1.16 ha, 5 cm | 1987 |
Chiapas, Mexico | Swidden | Agricultural matrix and forest | 11 | 1-17 | 0.05 ha, 1 cm | 2000 |
Manaus, Brazil | Pasture, burned 0-7 times | Second-growth mosaic in mature forest matrix | 16 | 2-17 | 0.025 ha, 1-3 cm | 1999 |
Manaus, Brazil | Pasture, burned 0-7 times | Second-growth mosaic in mature forest matrix | 1 | 5 | 0.5 ha, 3 cm | 2000 |
Manaus, Brazil | Pasture, burned 0-7 times | Second-growth mosaic in mature forest matrix | 2 | 19 | 0.06 ha, 3 cm | 2002 |
Sites contributing additional chronosequence points and their PIs
Study Location | Previous Use | Landscape Matrix | Number of Plots | Initial Stand Age | Plot Size | Year Initiated |
---|---|---|---|---|---|---|
Chiapas (Martínez-Ramos & Bongers) |
Swidden; Pasture | Agricultural Matrix and Forest Fragments | 21, 66 | 2-13; 1-50 | 0.05 ha, 1 cm | 1998 |
NE Costa Rica (Schedlbauer & Finegan) |
Pasture | Agricultural Matrix and Forest Fragments | 12 | 8-22 | 0.25 ha, 10 cm, nested subplots | 2005 |
NE Costa Rica (Letcher) |
Various | Agricultural matrix and forest | 35 | 5-45 | 0.1 ha, 2.5 cm | 2006 |
Manaus, Brazil (Lucas & Mesquita) |
Various | Agricultural matrix and Forest | 4 | 30-35 | 0.1 ha, 5 cm | 1995 |