Flora and Fauna

The Alps around Mont Blanc is no longer a wilderness area and the hand and impacts of man are evident in the landscape. So the Fauna of the area has had to adapt to the changed habitat in what was already a precarious environment but native species still survive. It’s encouraging to know that after years of retreat, populations of wild animals are making a comeback in the Alps as a result of protective measures  and you will come across Marmots, Ibex and mountain hare on your walk on the TMB plus you may see ravens, Alpine Chough, buzzards, eagles and more rarely a bearded vulture with a 2m wingspan overhead. If you are lucky you may spot a Ptarmigan in the thickets above the tree line. You can also see most of the native Chamonix animals in their natural habitat at the Merlet Animal Park in Les Houches


ibex mont Blanc

Of the larger animals, you’re most likely to see Ibex, as they’re not shy creatures and are often seen on or above the paths, particularly on Stage 10 from Tre Le Champ to La Flegere. While they are quite used to walkers it’s best not to get too close to a wild animal with horns, so keep a respectful distance and use your Camera’s zoom!

The Alpine ibex is a mountain goat that can be easily identified by the male’s large scimitar-shaped horns which have ridged lines on the front. Ibex are related to domestic goats and will mate with other goats if unable to find a mate in the wild. Females have smaller, thinner horns which develop more slowly than the male ibex.  In the early 19th Century the Alpine Ibex were hunted to extinction and it’s estimated that by 1856 only 60 Alpine ibex remained on a royal hunting reserve in the Grand Paradiso region of Italy. From this remnant population, an effort was made to reintroduce them to the rest of the alps which has been successful with protection. It’s now thought that there are over 40,000 ibex in the Swiss Alps alone!


Easily confused with the ibex the chamois is a rarer and smaller goat-like animal found at moderately high elevations throughout the Alps. Chamois was once greatly prized for their coast and also excessively hunted and many people in the Chamonix area were Chamois hunters. They are agile climbers and if they sense a threat they can ascend 1000 meters in about 15 minutes. Chamois are easily recognized by their white facial markings and the brown stripe the runs along their backbone. They are being introduced into New Zealand’s South Island now!

marmot mont blanc


The Alpine Marmot (Marmota marmota) is common in the Swiss Alps between 2500 and 10,000 feet in elevation. They are excellent diggers, able to burrow through soil that even a pickaxe would have difficulty with. The marmot is the largest member of the squirrel family. The body mass is lightest in the spring, weighing about 6-7 pounds. By the fall they weigh between 12-18 pounds as they prepare for hibernation. Marmots live in an underground burrow or “hotel”. The burrow only hosts one family but is often enlarged by the next generation. They can create very complex burrows over time. Each alpine marmot will live in a group that consists of several burrows, and which has a dominant breeding pair. One can often see an alpine marmot “standing” while they keep a look-out for potential predators or other dangers. Warnings are given, by emitting a series of loud whistles, after which members of the colony may be seen running for cover. Alpine marmots eat plants such as grasses and herbs, as well as grain, insects, spiders, and worms. Marmots spend up to nine months per year in hibernation. The mating season for alpine marmots occurs in the spring, right after their hibernation period comes to a close, which gives their offspring the highest possible chance of surviving the coming winter. Alpine marmots are able to breed once they reach the age of two years and have a gestation period of 33–34 days. Each litter consists of between one to seven babies, though this number is usually three. The babies are born blind and will grow dark fur within several days. The weaning period takes a further forty days, during which time the mother will leave the young in the burrow while she searches for food. If kept in captivity, alpine marmots can live up to 15–18 years.


Flora and Alpine zones


Alpine flora

The Montane zone is the lowest of the three characterised by a mix of broadly woodland animal pastures At 1200m this gives way to the Sub Alpine zone, dominated by Pine forests. The Alpine zone begins above the tree line and this varies from 1700m – 2000m. You can find shrubs above the tree line such as Bilberry and dwarf willow and this also where you’ll find the best displays of wildflowers amongst the meadows.

The European alpine flora (i.e. species confined to or predominantly above the treeline) has recently been estimated to be in excess of 2500 species and subspecies. Many species are restricted to alpine habitats, whilst others may occur equally below and above the treeline. In the transition zone between the upper montane forest and the alpine zone (treeline ecotone), where the flora of the forests, man-made grasslands, and alpine grass and sedge heaths meet, there is structurally diverse vegetation, rich in species. Species restricted to the alpine zone form about 17% of the total flora in the Alps



Alpine wild Flowers

Passing upwards into an area where shrubs such as Rhododendron and Myrtle abound, the subalpine level gives way to the alpine level. The alpine meadowland is populated by many species with spectacular flowerings on the TMB  route, including Gentiana acaule and Gentiana Clusii, the famous Edelweiss and the rare Campanulathyrsoides.

Among the rare plants that can be found in the nival level ( above the perennial snowline), the two that hold the record for height are Ranunculus Glacialis and Saxifraga with two flowers.

Sources: Alpenwild, Joint Nature Conservation committee, Rucksack readers Mont Blanc, www.autourdumontblanc.com/flora.