Calumma linotum

Calumma linotum im Montagne d'Ambre 2017
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum
Calumma linotum, Montagne d'Ambre, 2019
Calumma linotum, Montagne d'Ambre, 2019
Calumma linotum, Montagne d'Ambre, 2019
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First description:

(Müller, 1924)

Origin of the species name:

The German herpetologist Lorenz Müller, then curator of the herpetological department of the State Zoological Collection of Munich (Germany), described this chameleon species in 1924. Müller himself had never been to Madagascar but had received prepared chameleons of the species for the State Collection. Unfortunately, he did not reveal in his first description why he chose the species name.

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Calumma linotum

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Montagne d\'Ambre: -12.594774, 49.165878

Distribution:

Calumma linotum inhabits the forest areas of the north. Until now, only the cool and humid Amber Mountain national park and the somewhat more southern area of Andampy are known as habitat. In Amber Mountain, you can find these animals easily at night around the campground. They sleep at head heights and both genders always sleep relatively close to each other (only some meters away).

Appearance and size:

With a total length of 13 cm in males and only 10 to 11 cm in females, this chameleon counts among the small species. It has a well developed, soft, almost leaf-shaped nose appendage, that is more prone in males and characteristically blue coloured. Colours vary from brown-grey to beige, sometimes with a light lateral stripe along the body and light throat or light lips, and often with a dark stripe on the eyelids. Arms and legs have large blue-turquoise coloured scales. The casque is flat, hardly higher than the back, and has small occipital lobes. Instead of a continuing dorsal crest, they have a regular row of spines with large distances between each other. Stressed animals wear dark patterns especially on the tail.

Reproduction:

During the months of January to March, it’s hatching time and you can find a lot of young chameleons in the coniferous trees of Amber Mountain.

Good to know:

Calumma linotum was thought to be a synonym of Calumma boettgeri for a long time, since scientific collections contained only one single specimen with the unclear finding place “Madagascar”. Genetic examinations of Prötzel et al stated in 2015 that the small blue noses in Amber Mountain are not Calumma boettgeri, but an own species. They have lager scales on arms, legs and nose and a not continuing dorsal ridge that C. boettgeri lacks. And finally, both species do not occur in the same region in Madagascar.

Calumma linotum has a quite unique defense behaviour: If you try to touch them on a branch or let them walk on your hand, they roll up their bodies and fall down suddenly.

 

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 linotum in Amber Mountain. Amber Mountain is an imperssing rainforest full of tree giants with meter wide nest ferns. Everything is full of lianas, moss and lichens, the undergrowth is lush and dense. Everything greens and blooms and it’s very humid all year round. Calumma linotum climbs and sleeps mostly on very thin twigs in shrubs and bushes or on the small branches of thin trees.

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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