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Calumma ambreense

Calumma ambreense, Männchen, 2017 im Montagne d'Ambre
Calumma ambreense, Männchen, 2017 im Montagne d'Ambre
Calumma ambreense 2016
Calumma ambreense 2016
Calumma ambreense 2016
Calumma ambreense 2016
Calumma ambreense
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First description:

Ramanantsoa, 1974

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Calumma ambreense

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Montagne d\'Ambre: -12.604156, 49.163818

Distribution:

Calumma ambreense is an inhabitant of the rainforests of Amber Mountain national park. You can only find it on eleveations between 600 and 1200 meters above sea level. The species mainly lives on trees between one and a half until ten meters in height.They prefer very high, slender trees overgrown with ferns and moss (like everything in Amber Mountain). Astonishingly, we have find some of these also around the campground of Amber Mountain in pine trees. In the night, these chameleons are – like almost all species – brighter coloured, and thus easy to find with a torch in big trees. Even then they mostly sit well above 2 m height. During daytime, it is more difficult to find this species – although they are rather big, they are well camouflaged. Young Calumma ambreense of few days of age often still sleep on very thin plants very close to the ground.

Appearance and size:

These chameleons count among the large chameleon species due to their size from 40 to 55 cm. Like in all Calumma species, the helmet is rather high, and they have very small, hardly recognizable occipital lobes. There is hardly a dorsal and ventral ridge, and there are no enlarged scales. Males have a greyish-green colour with a broad, white lateral stripe and dark bands, and short nose appendages. The females lack any nose appendage, but are more green and sometimes yellowish coloured. Both genders may have bright green and blue patterns on the head.

Character:

We have experieced this species to be very gentle and calm in wilderness – never a Calumma ambreense hissed at us. However, they are usually less relaxed when handled than for example Calumma parsonii which has a similar size.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature 23 23 24 23 22 21 20 20 21 22 23 23
Minimum temperature 19 19 19 19 18 16 15 15 16 17 18 19
Maximum temperature 28 28 28 28 27 26 25 25 26 27 28 28
Rain days 20 20 17 9 6 6 7 6 5 6 7 14

We have collected the data given above over several years with thermometers and hygrometers at the finding places of the chameleons. "Average temperature" means that values of a whole month have been calculated to one average value per month. For example all measured minimum temperature values of February have been calculated to one average minimum temperature for February. In plain language, this means single peak values of a day may be a little higher or lower than the average minimum and maximum temperatures. It is possible that a location has an average maximum temperature of 29°C, but one day during that month it had 33°C or even 35°C there.

Amber Mountain is an evergreen rainforest which extends over a mountain massif of volcanic origin at elevations between 850 and 1450 m. Due to the height, nights can become rather cold with temperature drops to 10°C.

During rainy season, day temperatures rise to 28°C, in sunny places even warmer. But the average temperature is a little lower. During rainy season, it rains every day for several hours. Simply the way it is in a rainforest. 😉 But also dry season has regular precipitation, just a little shorter. Climate in Amber Mountain is very humid all year long. During dry season, temperatures are somewhat lower with day temperatures up to 25°C.

2016 UVI Montagne d'Ambre
Tageszeit = day time, Sonne = sun, Halbschatten = half shade, Schatten = shade

We have measured UVB data with a Solarmeter 6.5 in spring (end 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.

Unfortunately, we have no ground temperatures for Amber Mountain available yet.

Habitat:
The following pictures show the habitat of Calumma ambreense in Amber Mountain. Some are even from finding places of this species. Amber Mountain is an impressing rainforest full of old tree giants with meter sized nest ferns. Everything is full of lianas, moss and lichens. Calumma amber is mostly climbing on large trees, and partially even inhabits introduced pines.

Hereinafter you can find some 360° pictures from Amber Mountain. You can move inside these pictures via mouse click in all directions. If you click on the Theta logo, a new window with an enlarged view will open. You will also have the opportunity to look at the pictures in full screen mode. Enjoy!

Regenwald im Nationalpark Montagne d’Ambre, Region Diana, Nord-Madagaskar, April 2017 – Spherical Image – RICOH THETA

Regenwald im Nationalpark Montagne d’Ambre, Region Diana, Nord-Madagaskar, April 2017 – Spherical Image – RICOH THETA

Regenwald im Nationalpark Montagne d’Ambre, Region Diana, Nord-Madagaskar, April 2017 – Spherical Image – RICOH THETA

Regenwald im Nationalpark Montagne d’Ambre, Region Diana, Nord-Madagaskar, April 2017 – Spherical Image – RICOH THETA

Regenwald im Nationalpark Montagne d’Ambre, Region Diana, Nord-Madagaskar, April 2017 – Spherical Image – RICOH THETA

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