Isolated trees as foci of diversity in active and fallow fields.

摘要: As the percentage of forest converted to agroecosystems in tropics rises, it becomes increasingly important understand how biodiversity can be managed these ecosystems. In this study, I tested hypotheses that insect abundance and diversity are higher near isolated trees crop fields than open insects increases with density trees. Ant species richness, ant beetle per trap were open. Isolated had less an affect on fallow active fields. richness was positively correlated tree size. field, field not or condition surrounding These results indicate play a role determining local distribution ants beetles