Impacts of increased water and nitrogen availability on photosynthesis of the continental Antarctic lichen Usnea sphacelata

• Main Author: O'Brien, MM
• Format: Thesis
• Language: English
• Published: 2004
• Subjects: Photosynthesis; Lichens; Antarctic; Windmill Islands; Antarc*; Antarctica
• Online Access: https://eprints.utas.edu.au/21072/; https://eprints.utas.edu.au/21072/1/whole_O%27BrienMarcelleMaree2004_thesis.pdf

Water availability and low temperatures are believed to be the main ecological limits for continental Antarctic lichens. Lichen growth may also be limited by nitrogen availability. Thallus nitrogen content of two dominant Antarctic macro lichens decreases significantly at the onset of the summer sno...