over 100,000 different species of arachnids are there.
how many different species of arachnids are there?
over 100,000
yasuni national park (ynp) is arguably the most biologically diverse spot on earth and a convergence point for three unique regions, the equator, andes mountains, and the amazon rainforest. the park is at the center of a small zone where amphibian, bird, mammal, and vascular plant diversity all reach their maximum levels within the western hemisphere. moreover, the park breaks world records for local-scale (less than 100 km) tree, amphibian, and bat species richness, and is one of the richest spots in the world for birds and mammals at local scales as well. the park also harbors a lot of amphibian diversity compared to other sites sampled in the western amazon. reptile species in the park are also very high in diversity with 121 documented species found. in spite of covering less than 0.15% of the amazon basin, yasuni is home to approximately one-third of amphibian and reptile species. the park also harbors high levels of fish diversity with 382 known species. yasuni is also home to at least 596 bird species which comprises one-third of the total native bird species for the amazon. the park is also rich in species of bats. on a regional scale, the amazon basin has an estimated 117 bat species, but on a local scale, yasuni is estimated to have comparable richness. in a single hectare, yasuni has over 100,000 different species of insects which is roughly the amount of insect species that can be found in all of north america. the park also boasts one of the world's richest levels of vascular plants. it is one of nine places in the world that has over 4,000 vascular plant species per 10,000 km. the park contains many species of trees and shrubs and holds at least four world records for documented tree and liana richness as well as three world records for diversity in woody plant species. the park also hosts a list endemic species such as 43 different species of vertebrates and 220–720 different plant species. moreover, the park breaks world records for local-scale (less than 100 km2) tree, amphibian, and bat species richness, and is one of the richest spots in the world for birds and mammals at local scales as well. within the northwest region of the park is a forest dynamics plot, a 50 hectare research plot created in 1995 by a collaboration between pontificia universidad católica de ecuador (puce), the aarhus university in denmark, and forestgeo-stri.
yasuni national park
many different species of epiphyte have been found to grow on "s. exorrhiza". a study of 118 individual trees in panama found 66 species from 15, families on them. bryophytes covered up to 30% of the stems, and the relative coverage increased as the stem diameter increased. around half of the trees studied had vascular epiphytes growing on them. up to 85 individuals from 12 different species were found on one palm, and another tree was colonised by a total of 16 different species. the most common epiphytes were three species of fern, "ananthacorus angustifolius", "elaphoglossum sporadolepis" and "dicranoglossum panamense", altogether accounting for 30% of all the individuals recorded. other common species, representing more than 5% of the individuals found, included "scaphyglottis longicaulis" (orchidaceae), "philodendron schottianum" (araceae) and "guzmania subcorymbosa" (bromeliaceae). almost half of the species recorded were rare, however, with only between 1 and 3 individuals being recorded on all of the palms. a clear vertical distribution was found between different species: some grew in the understory, other in the midstory and others in the canopy. trees with epiphytes were found to be significantly larger than those without. this suggests that the palms must reach a certain age before they are colonised; for example, it is estimated that palms must be 20 years old before they are colonised by vascular epiphytes.
socratea exorrhiza