Abundance of selected insect species in natural and agricultural habitats of a tropical upland (Leyte, Philippines)

The objectives of this study, dealing with the relationships of insects between the natural forest and the open agricultural land, were to: (a) record insects at sites of the forest interior, the forest margin and agricultural land, using modified Malaise traps, in order to identify species that occur in the forest as well as in the open country, (b) determine the movement patterns of selected species based on their abundances at the different habitats, (c) find out whether major pest species of the cultivated crops show any relationship to the adjacent natural forest and (d) find out whether species originating from the forest (non-pest species) are able to colonize open country.