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Brygoo, Blanc & Domergue, 1970
Brookesia karchei mainly occurs in Marojejy national park in northeast Madagascar, where it prefers humid leaf layer between rocks and moss as habitat. We could find it several times between Camp Mantella and Camp Marojejya – which is not easy with a chameleon of this tiny size!
Appearance & size:
The dwarfs become about 50 mm long, females stay a little smaller. Along the back, each side has a row of twelve to thirteen enlarged, spiny scales that are not continued on tail (in contrast to some other very similar Brookesia species). Above noses and eyes, there is a small bony appendage, otherwise these chameleons look rather unsuspicious. They are beige to light brown.
Good to know:
This species is part of the minima group, which includes the smallest chameleons of the world.
Data will come soon.
Marojejy mainly consists of rainforest that extends over the eponymic sacred mountain at elevations of 800 to maximally 2100 m above sea level. In the highest areas, climate is cool and vegetation sparse, but most chameleons live in the warmer dense rainforest below.
In Marojejy, there is few difference between rainy and dry season. Humidity is always very, very high. In rainy season, precipitation is more intense with rainfalls that may last for days and sometimes are accompagnied by heavy storms. In dry season, temperatures are a little lower, but it never becomes really cold. And it stills rains almost daily. It really cannot become dry in Marojejy during "dry" season. Humidity is the main key factor of this rainforest.
We have measured UVB data with a Solarmeter 6.5 in spring (end of March until beginning of April) at the peak of activity of chameleons in Madagascar. We always measured the values that a chameleon could maximally reach in its habitat.
The following pictures show the habitat of Brookesia karchei between Camp Mantella and Marojejya in Marojejy. The rainforest here consists of huge tree giants and slippery, mossy, round stones in very lush undergrowth. Ferns, lianas and moss dominate the scene. You can find these chameleons in the middle of the dense foliage and on bark pieces.