Local form Sambava

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Sambava

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Sambava -14.266667, 50.166667 Sambava, Antsiranana, Madagaskar (Directions)

Distribution of the local form Sambava:

Sambava is located on Madagascar’s east coast in the Sava region in the Indian Ocean. The city has approximately 45.000 inhabitants and is famous as the “capital of vanilla”. Most people here subsist on working in the surrounding vanilla plantations or the related factories, few are fishers or have rice fields. Sambava has its own small airport, you can hardly reach this region by car. To the north, this distribution area of the local panther chameleons is limited by a large river called Bemarivo. The Lokoho river flows to the south, while various smaller rivers in the west divide the Sambava local form from the Marojejy local form.

Appearance of the local form:

The males of this local form in the relaxed state of mind are green on the body with black-red, very dark banding. The top of the helmet and nose is green, the rest of the head including the eyelids is always bright red. The throat pouch, chest area, and parts of the tail may extend even more into orange in younger animals. If the males are excited, the green colors on the body partly change to orange up to bright yellow tones.

Weight table

Gewichtstabelle Furcifer pardalis 2018

Gewicht = weight in grams, Kopf-Rumpf-Länge = snout-vent-length in cm, Weibchen = females, Männchen = males

Since 2015, we have been measuring the weights of chameleons found by us in Madagascar, as far as the animals (and our scales) participate. In the long term, we aim to obtain an average weight in relation to snout-vent-length (measured from the tip of the nose to the cloaca) for each species from as many measurements as possible. It is important to know that all weights were measured towards the end of the rainy season (= best food supply), so these should be maximum weights on Madagascar. Triangular symbols in females mean not pregnant, round symbols mean pregnant. In Furcifer pardalis, contrary to our original assumption, it has so far turned out that there are no serious differences in the ratio of SVL to weight between the individual local forms.

 

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature 27 27 27 26 25 24 23 23 23 24 25 26
Minimum temperature 23 23 23 22 21 19 19 18 19 20 21 22
Maximum temperature 31 31 31 30 29 28 27 27 28 29 29 30
Rain days 20 18 18 15 14 13 16 16 13 13 15 18

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.

Climate on Madagascar's north east coast, where Sambava is located, is humid and warm all year long. That is why the world famous vanilla can grow here, and chameleons like the climate, too. In rainy season from October to April, Sambava has warmer temperatures with over 25°C and often more than 30°C during daytime. In the night, temperatuers fall only a little, and humidity is enormously high due to steady rain.

In dry season, temperatures are cooler but almost every day reaches 25°C, in most cases temperatures rises a little above this point. In contrast to rainy season, nights during dry season cool down to 15°C. It rains a little less but still very regularly, approximately every other day. Precipitation is simply less long-lasting.

2015 UVI Sambava
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 Sambava available yet.

Habitat:

In gardens, shrubs, bushes, and trees along the street, close to the beach, or in open terrain around Sambava, you can find panther chameleons here.

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