Earthworms Leaf Cutter Ants Hercules Beetles Termites Fungi (These species can be classified as Primary Consumers or just Decomposers becuase of the fact that they can eat the carcasses of the animals that are higher in the trophic pyrimid than Primary Consumers)
The Golden Toad/Bufo periglenes- These toads are extremely endangered. They are very sensitive to the changes in their habitat and to climate change. There is also the fact that there is polution, which is just as bad as the habitat loss to these toads. They were las spotted in 1989, although there were over 1,000 spotted in 1988.
Three Toed Sloth/Bradypus torquatus- A Three Toed Sloth will usually only reproduce one offspring. This sloth was finally listed as endangered back in the 1980's. The reason they are endangerd is because humans pose a threat to them. Hunters hunt the Three Toed Sloth for their meat, which they sell for money.
Hummingbirds are known to be a keystone species in the Monteverde Cloud Forest becuas of the help they give by pollinating one of the most popular flower in the Cloud Forest, The Orchid. But they don't only help polinate the Orchid, they help with many other flowers and plants as well