Nutrient transfer from penguin colonies to the vegetation at Cape Hallett: A measurement of the transfer of organic nitrogen in the form of ammonia Entry ID:
K024_2004_2006_NZ_3
Abstract:
The transfer of nutrients from marine to terrestrial ecosystems are though to be important for vegetation. The transfer rate of organic nitrogen in the form of ammonia from the penguin colonies to the vegetation was analysed. Initial estimates were carried out in the 04-05 season. Ammonia traps were set up to determine the potential for ammonia transfer, ammonia concentrations in air were made at 3 sites around the penguin rookery, bulk ammonia samples were collected in the centre of the rookery, lichens (Usnea sphacelata, Umbilicaria decussata and Xanthoria mawsonii) were collected at varying distances from the rookery for 15N analysis and sites remote from the rookery were identified as suitable for ammonia monitoring (Luther Lake, Red Castle Ridge and Football Saddle). Samples and lichen were analysed overseas. In the 05-06 season, the affect of proximity to the penguin rookery on phosphatase activity in several species of lichen and the natural abundance of 15N in lichens in the area was assessed. As in the previous season, ammonia traps were set up, ammonia concentrations in air were made at 5 sites, bulk ammonia samples were collected in the centre of the rookery and lichens (Usnea sphacelata, Umbilicaria decussata and Xanthoria mawsonii) were collected at varying distances from the rookery for 15N analysis. Ammonia concentrations were remeasured at the three remote sites (Luther Lake, Red Castle Ridge and Football Saddle).
Name:
SHULAMIT
GORDON Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745 City:
Christchurch
Country:
New Zealand
Personnel
T G ALLAN
GREEN Role:
INVESTIGATOR
Phone:
+64 7 838 4225
Fax:
+64 7 838 4324
Email:
greentga at waikato.ac.nz
Contact Address:
Department of Biological Sciences
University of Waikato
PO Box 3105 City:
Hamilton
Country:
NEW ZEALAND
CEISHA
POIROT Role:
DIF AUTHOR
Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745 City:
Christchurch
Country:
New Zealand
SHULAMIT
GORDON Role:
DIF AUTHOR
Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745 City:
Christchurch
Country:
New Zealand
Publications/References
Pannewitz, S. Green, T.G.A. Schlensog, M. Seppelt, R.D. Sancho, L.G. Schroeter, B. 2006 Photosynthetic performance of Xanthoria mawsonii Dodge in coastal habitats, Ross Sea region, continental Antarctica. Lichenologist 38: 67-81
Creation and Review Dates
DIF Creation Date:
2009-04-23
Last DIF Revision Date:
2009-04-23
