Full Name of Site: Monteverde Cloud Forest Reserve
Of course, as a Tico, I am neither proposing nor endorsing sites located in my country, but I think I can provide some insight into sites.
This proposed site had also been briefly mentioned in the last version of the Top50. It's just that the Monteverde Cloud Forest Reserve, although very important in the study of cloud forests and their preservation worldwide (even more so for being a private reserve), is only 41,25 km2 (and only a part of the Arenal-Monteverde protection zone) and it covers heights 1200-1500 msnm on mostly the Pacific side, which are being increasingly affected by climate change, resulting in less cloud cover.
If it ever gets to be seconded by someone, I think it would be best to go for a larger area and a wider range, as Monteverde is in the middle of the Tilarán mountain range, where more contiguous reserves are located (refer to this map
-The Alberto Manuel Brenes Biological Reserve
(77,99 km2, B01 in the map), much richer, diverse (covers from 800-1700 m on the more humid Caribbean side, mostly in San Ramón municipality) and which boasts a very important biological station of the University of Costa Rica
which has helped identify several endemic species, like the Heliconia ramonensis. This station has (to date) determined that there are 1.012 species of angiospermas, 350 of birds, 57 of mammals and 35 of amphibians and reptiles.
-The Arenal Volcano National Park
(119,44 km2, P01 in the map): besides the 7500 yr-old coned-shape volcano, there are several older cones (like Chato volcano, and Los Perdidos mounts), that show an evolution of the volcanic vent, moving from south to north. Currently inactive, the western and northern sides of the volcano are being repopulated by vegetation, after more than 45 yrs of strong activity. Regarding cloud forests, the eastern side of the volcano has some, but Chato volcano
and Los Perdidos have much more.
-Most importantly, the Arenal-Monteverde Protection Zone (283,34 km2, Z01 in the map) that connects all these areas and includes reserves like the Santa Elena Cloud Forest Reserve
, which is at a higher altitude than Monteverde (1600 to 1800 m) and has therefore been less affected by climate change. The whole protection zone ranges from 660 to 1.859 m and being more in the Caribbean side means it is wetter. This protection zone is part of the Three-wattled Bellbird Biological Corridor and its size contributes to it having a great biodiversity: 400 species of birds (1/2 of those in the country), 100 of mammals, 153 of amphibians and reptiles. The Pocosol lagoon, another volcanic remnant, is located there.
I hope this post doesn't look like a nationalist one, but I just wanted to tell that the site would be stronger if the whole compound of B01, P01 and Z01, including a wider altitudinal variation and a larger number of lifezones, is considered.