Terrestrial Pteridophytes as Indicators of a Forest-Like Environment in Rubber Production Systems in the Lowlands of Jambi, Sumatra.

TitleTerrestrial Pteridophytes as Indicators of a Forest-Like Environment in Rubber Production Systems in the Lowlands of Jambi, Sumatra.
Publication TypeJournal Article
Year of Publication2004
AuthorsBeukema H, van Noordwijk M
ContactAuthorasb@cgiar.org, h.beukema@biol.rug.nl
JournalAgriculture, Ecosystems & Environment
Volume104
Start Page63
Pagination11
Keywordsagroforestry, Biodiversity, Jungle Rubber, Pteridophyta, Species Area Relations, tropical rain forest
AbstractSpecies richness of terrestrial ferns and fern allies (Pteridophyta) may indicate forest habitat quality, as analysed here for a tropical lowland area in Sumatra. A total of 51 standard 0.16 ha plots in primary forest, rubber (Hevea brasiliensis) agroforests and rubber plantations was compared for plot level diversity (average number of species per plot) and landscape level diversity (species–area curves). Average plot level species richness (11 species) was not significantly different amongst the three land use types. However at the landscape level the species–area curve for rubber agroforests (also called jungle rubber) had a significantly higher slope parameter than the curve for rubber plantations, indicating higher beta diversity in jungle rubber as compared to rubber plantations. Plot level species richness is thus not fully indicative of the (relative) richness of a land use type at the landscape scale because scaling relations differ between land use types.
URLhttp://www.asb.cgiar.org/pdfwebdocs/AGEE_special_Beukema_Terrestrial_pteridophytes.pdf