Read the excerpt from an environmental report and the transcript from a radio interview regarding ecological restoration in Costa Rica's Monteverde region.
Source 1: Excerpt from an Environmental Report (Print)
Over the past decade, community-led reforestation initiatives in the Monteverde region have successfully increased overall canopy cover by 25%. However, regional conservation biologists emphasize that gross canopy expansion alone has not restored the populations of altitude-migrating bird species. The primary obstacle remains severe habitat fragmentation, as privately owned agricultural plots continue to divide critical forested corridors, preventing species from safely moving between elevational zones.
Source 2: Transcript from a Radio Interview with an Environmental Economist (Audio)
*Broadcaster:* "Dr. Morales, how are regional authorities tackling the fragmentation of the biological corridors?"
*Dr. Morales:* "Traditional land acquisition was financially unsustainable, so the regional council introduced targeted tax rebates for private coffee and dairy farmers who establish contiguous native tree buffers along their property boundaries. Over the last two years, more than seventy local landowners enrolled in the program. Recent field surveys already document a marked increase in active bird nesting and migration along these newly reconnected private corridors."
Which of the following conclusions can be drawn by synthesizing the information from both sources?
- AGeneral increases in tree canopy cover are sufficient on their own to restore migratory bird populations without involving private landowners.
- Financial incentives for private landowners successfully resolve the structural habitat fragmentation that general reforestation efforts alone could not fix.Cevap
- CPrivate agricultural landowners are unwilling to adopt conservation measures due to the high financial costs imposed by regional conservation taxes.
- DThe primary threat to migratory bird species in Monteverde is the agricultural pollution generated by regional dairy and coffee operations.