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Efectos del Uso de Suelo sobre la Riqueza de Especies de Aves en Sulawesi, Indonesia
Author(s) -
WALTERT MATTHIAS,
MARDIASTUTI ANI,
MÜHLENBERG MICHAEL
Publication year - 2004
Publication title -
conservation biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.2
H-Index - 222
eISSN - 1523-1739
pISSN - 0888-8892
DOI - 10.1111/j.1523-1739.2004.00127.x
Subject(s) - species richness , secondary forest , biodiversity , old growth forest , habitat , agroforestry , ecology , geography , global biodiversity , intact forest landscape , forest farming , forest ecology , biology , ecosystem
Abstract: There is still much debate over the potential value of land‐use systems for the maintenance of tropical biodiversity. An increasing number of studies indicate that much forest biodiversity can also be found in the agricultural landscape matrix. Because there is little information on the potential value of land‐use systems for tropical forest bird species, we conducted repeated point counts in near‐primary forest, adjacent young secondary forest, modernized cacao agroforestry systems, and annual cultures at submontane elevations in central Sulawesi, Indonesia. Species richness decreased from natural forest and young secondary forest to agroforestry systems and annual cultures. Although species richness was similar between natural and young secondary forest, the number of endemic bird species was significantly lower in second‐growth forest. Species composition gradually changed as the habitat changed from natural to secondary forest, agroforestry systems, and annual cultures. Despite close proximity to near‐primary forest, the agroforestry systems studied supported only a few small frugivorous‐nectarivorous species. Our results suggest that secondary forest could play an important role in the conservation of many Sulawesi bird species, but, although suitable for colonization, its potential to sustain populations over the long term is unknown. Improvement of the landscape matrix for biodiversity conservation through secondary habitats therefore seems desirable to enlarge the ranges of forest species, but the fight against land conversion within protected areas of the region should be of much higher importance, at least at present.