Investigations into the effects of elevated carbon dioxide and drought on the growth and physiology of carpet weed (Galenia pubescens Eckl. & Zeyh.)
- Authors: Mahmood, Ako , Florentine, Singarayer , Fernando, Nimesha , Wright, Wendy , Palmer, Grant , McLaren, David , Sillitoe, Jim
- Date: 2016
- Type: Text , Conference proceedings
- Relation: 20th Australasian Weeds Conference 2016; Perth, Western Australia; 11th-15th September 2016 p. 347-350
- Full Text:
- Reviewed:
- Description: The present study aimed to examine the interactive effects of elevated atmospheric CO2 concentration and drought stress on the growth and some of the physiological processes of Galenia pubescens. Photosynthetic rate of plants increased under elevated CO2 concentration, however drought caused significant reduction in net photosynthetic rate by (45% in 400 ppm CO2) and (27% in 700 ppm CO2) after five days simulating the drought treatment when compared with well-watered plants. Plants grown under elevated CO2 level and well-watered produced a greater biomass (17.5 ± 0.5 g per plant) compared to the plants which were grown under the ambient CO2 concentration.
Quantifying values: A sampling methodology for use in assessing the impacts on tourism, local community and businesses of Victoria's marine protected areas
- Authors: Hall, Nina , Sillitoe, Jim
- Date: 2007
- Type: Text , Conference proceedings
- Full Text: false
- Description: A sampling methodology has been devised to facilitate the selection of a purposeful sample of marine parks and sanctuaries for the investigation of their impacts on tourism, local community and businesses. The methodology is based on multi-attribute utility theory used for comparing complex alternatives in decision making and takes into account those key attributes of Victoria's thirteen marine national parks and eleven marine sanctuaries that have been identified through both published and draft management plans, government policies and relevant strategies. The attributes are: tourism services, activities, community engagement, visitation, values, interpretation, access, location, conservation significance, and regional context. Values of each marine protected area are quantified and establishment of a total attribute value score for a typical area enables the comparison between individual marine parks and sanctuaries. To strengthen the methodology, a panel of independent experts representing tourism, local government and community organisations have been invited to express their views with regard to these attributes, and their responses have been incorporated into the research.