1. Does habitat destruction always lead to loss in biodiversity? Kim van der Linde Animal Ecology Institute of Evolutionary and Ecological Sciences Leiden University

2. Applied biodiversity research Limited time for research But: We want to know everything So: What about an indicator group?

3. Aim of the Study Are Drosophila’s potentially useful as indicator group? Therefor, we need to know first: Do they show a clear relation between biodiversity and disturbance?

4. Methods 10 different habitats 2 collection sites per habitat oviposition traps adult and offspring

5. Habitats 1.Closed canopy forest (picture) 2.Open canopy forest 3.Patches of logged over forest 4.Scrub, forest with all trees removed 5.Pioneer vegetation on recovering kaïngins 6.Kaïngins, slash and burn agriculture 7.Semi, kaïngins with a semi-permanent character 8.Banana plantation 9.Reforestation with (mostly) softwood species 10.Grassland (picture)

8. Indices and ranking Binomial test P=0.000418

9. Mann-Whitnney U-test, one tail probability adult1: p=0.042; adult2: p=0.184; offspring1: p=0.034; offspring2: p=0.005

10. No change in biodiversity indices But large change in overlap percentages Potentially useful as indicator group Does habitat destruction always lead to loss in biodiversity?