In addition to the national parks in Madagascar there are a number of small community-run reserves. In these local people care for and maintain their patch of forest. The money they get from visitors, e.g. for guiding and souvenir sales, is invested into both the village and the upkeep of the forest.
Spiders are pretty persistent. Remember the tale of Robert the Bruce? Legend has it that when he was struggling in his fight against the English he hid out in a cave. While there he watched a spider try time and again to spin its web. Every time the spider fell, it got up and began again. Bruce was inspired by the spider to continue his campaign against the English, culminating in victory at Bannockburn.