Sunday, 14 December 2014

The Common Chameleon lives in the Algarve


Common Chameleon. Photo in Public Domain

One of the most interesting reptiles found in Portugal is the Common Chameleon (Chamaeleo chamaeleon).

It is green, yellowish-green or brown and lives mainly in bushes in scrubland. It can be found in the Algarve area in the south of Portugal and also lives in southern Spain, Greece, Malta, Cyprus and Morocco.

In Portugal the Common Chameleon is under threat due mainly to habitat loss from the continuing building projects that serve the tourist trade.  It is also caught for the pet trade but sadly captive specimens often do not live long.

The Common Chameleon feeds mainly on insects and spiders but is reported to also turn cannibal and eat smaller individuals of its own species.

Common Chameleons hibernate in the winter months when food is scarce. They dig themselves small burrows in the ground.

Common chameleons are usually solitary animals that establish territories but they come together for mating. The females lay clutches of eggs that they bury in the ground.  The eggs can take as much as a year to incubate. 



The Swallowtail Butterfly in Portugal


Swallowtail. Photo by Steve Andrews

Just over a week back I was happy to watch a female swallowtail butterfly (Papilio machaon) emerge from a chrysalis that had formed from a caterpillar I had helped rear. It had fed on rue (Ruta graveolens) that was growing in the front garden where I live in Portugal.

I watched this magnificent insect wait until her wings were dried and expanded successfully but it was late in the day and with the early darkness the newly emerged swallowtail had to wait until the next morning before I could release her into the sunlight.

I was surprised to see this butterfly emerge as late in the year as early December, although it can still get warm in the day when the sun is out and other species of butterfly are still flying.

The caterpillar of the swallowtail butterfly feeds on various plants in the parsley family, as well as rue in continental populations but in the UK the larvae will only take milk parsley. 


Swallowtail caterpillar on rue. Photo by Steve Andrews


Fortunately for swallowtails in Portugal the rue is often grown in gardens where it forms large clumps or small bushes.

Swallowtails are very rare Britain and only found in the Norfolk Broads where they live in the fenlands where their foodplant grows. The swallowtail is one of the rarest and largest species of British butterfly.

In recent years the continental swallowtail has been reported in the UK as well and it is thought to have crossed the channel as migrants. 

Friday, 28 November 2014

Edible wild plants found near the sea: Tree Mallow


Tree Mallow in Santiago del Teide, Tenerife. Photo by Steve Andrews

The tree mallow is a very tall species of mallow, hence its name, and is often found growing on cliffs and at the tops of beaches. It has attractive pinkish-purple flowers and blooms in summer.

Known to botanists as Malva arborea or Lavatera arborea the tree mallow is a biennial or short-lived perennial. It can grow to as much as 3 metres in height and forms a very thick stem like a small trunk. It is a handsome plant that stands out in its natural habitat.

The seeds are tiny nutlets and are edible and known in Jersey as “petit pains” or little breads. The leaves and flowers can also be eaten The leaves have a lot of mucilage and this is good for combating inflammation.

In herbal medicine the tree mallow´s leaves are steeped in hot water and used to make a poultice for treating sprains. Like other mallow species the tree mallow has a lot of mucilage in its leaves.

The tree mallow is listed in the book Food For Free which is Richard Mabey´s classic guide for foragers. It is a wild flower to look out for when on a coastal walk.

The tree mallow grows on coasts in the UK but is also found in Europe and the Mediterranean, as well as Libya, Algeria and the Canary Islands. It is resistant to salty spray from the sea and is often found on the coasts of islands.

The tree mallow makes an attractive garden plant and will grow happily away from the sea. It will self-seed and is easy to maintain year after year.