La croissance des lichens sur les arbres dans le parc national Great Otway, Victoria, Australie

• Contributeur: B.O'Kane / Alamy Banque D'Images
• ID de l’image: CPKA2M
• Taille du fichier: 24,1 MB (2,1 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 2370 x 3554 px | 20,1 x 30,1 cm | 7,9 x 11,8 inches | 300dpi
• Date de la prise de vue: 5 novembre 2011
• Lieu: Great Otway National Park, Victoria, Australia

Informations supplémentaires

Lichens are composite organisms consisting of a symbiotic relationship between a fungus (the mycobiont) and a photosynthetic partner (the photobiont or phycobiont), usually either a green alga (commonly Trebouxia) or cyanobacterium (commonly Nostoc). Lichens occur in some of the most extreme environments on Earth—arctic tundra, hot deserts, rocky coasts, and toxic slag heaps. However, they are also abundant as epiphytes on leaves and branches in rain forests and temperate woodland, on bare rock, including walls and gravestones, and on exposed soil surfaces (e.g., Collema) in otherwise mesic habitats.