The Interactive Effects of Fire and Diversity on Short-Term Responses of Ecosystem Processes in Experimental Mediterranean Grasslands

Dimitrakopoulos, Panayiotis G.; Siamantziouras, Akis‐Stavros D.; Galanidis, Alexandros; Mprezetou, Irene; Troumbis, Andreas Y.

doi:10.1007/s00267-004-0179-6

Cited by 34 publications

(7 citation statements)

References 39 publications

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“…Dimitrakopoulos et al [52] showed that fire and species richness had interactive effects on above-ground biomass production, with fire increasing the biomass of species-rich communities. They also showed that species-rich communities are more resistant to fire than species-poor communities.…”

Section: Discussionmentioning

confidence: 99%

Plant Richness-Biomass Relationships in Restored Northern Great Plains Grasslands (USA)

Biondini

Norland

Grygiel

2011

International Journal of Ecology

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We investigated plant richness-biomass relationships in tall grass (Field 1, 12 years) and mixed grass (Field 2, 5 years) restoration experiments located in the northern Great Plains grasslands (USA). They were organized as randomized factorial experiments with fertilization rates (N or P) and number of species as factors. Results were as follows: (1) above ground biomass (AGB) increased and year-to-year variability declined with plant species and functional form richness. (2) AGB was higher when the species had various combinations: (a) high relative growth rates, root density, root surface area, N or P uptake rates, and N use efficiency; (b) low root-to-shoot ratio and root plasticity. (3) Biomass stability was positively related to high root surface area in Field 1 and N use efficiency and P uptake rates in Field 2. (4) Invasion of nonseeded species declined with plant species and functional form richness.

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Section: Discussionmentioning

confidence: 99%

Plant Richness-Biomass Relationships in Restored Northern Great Plains Grasslands (USA)

Biondini

Norland

Grygiel

2011

International Journal of Ecology

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“…Similar to other Greek islands (e.g. Genius et al 2008), the area currently faces drought problems, mainly during the summer months where high temperatures are recorded (Mean annual temperature: 17.6 • , average temperature of the warmest month (July): 26.5 • , average annual rainfall: 682 mm) (Dimitrakopoulos et al 2006). To confront water shortages during these periods, the authorities often suspend the water supply for approximately 2 h in different parts of the city.…”

Section: Description Of Research Areamentioning

confidence: 99%

Citizens’ Perceptions on Water Conservation Policies and the Role of Social Capital

Jones

Evangelinos

Gaganis

et al. 2010

Water Resour Manage

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Planning and implementing environmental policies for the sustainable management of water resources is a challenging task. In order to improve the effectiveness of these policies it is essential to explore their social implications. The present article aims to investigate environmental policies focusing on domestic water conservation and their interconnection with social capital elements. In particular, by means of an empirical study conducted in an insular community of Greece, citizens' perceptions are explored concerning the restrictions imposed from different environmental policy instruments for water consumption and their perceived level of effectiveness. Furthermore, the influence of social capital parameters on these perceptions is investigated. Aggregated indicators of social capital are estimated with Confirmatory Factor Analysis measuring social and institutional trust, participation in social networks and compliance with social norms. Through the results of ordinal regression models it is evident that significant connections exist between elements of social capital and perceptions of citizens towards water consumption policies.

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“…In the Mediterranean Basin, higher diversity has been associated with more rapid recovery after fire (Lavorel, 1999). Fire effects also interact with species richness, increasing biomass production in rich communities (Dimitrakopoulos et al, 2006). In most MTEs, restoration of degraded environments due to human alteration could be facilitated by diversity of vegetation and associated soil microbes (García-Palacios et al, 2011;Viers et al, 2012).…”

Section: Species and Functional Diversitymentioning

confidence: 99%

Reassessing global change research priorities in mediterranean terrestrial ecosystems: how far have we come and where do we go from here?

Doblas‐Miranda

Martínez‐Vilalta

Lloret

et al. 2014

Global Ecology and Biogeography

129

100

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Aim Mediterranean terrestrial ecosystems serve as reference laboratories for the investigation of global change because of their transitional climate, the high spatiotemporal variability of their environmental conditions, a rich and unique biodiversity and a wide range of socio-economic conditions. As scientific development and environmental pressures increase, it is increasingly necessary to evaluate recent progress and to challenge research priorities in the face of global change. Location Mediterranean terrestrial ecosystems.Methods This article revisits the research priorities proposed in a 1998 assessment.Results A new set of research priorities is proposed: (1) to establish the role of the landscape mosaic on fire-spread; (2) to further research the combined effect of different drivers on pest expansion; (3) to address the interaction between drivers of global change and recent forest management practices; (4) to obtain more realistic information on the impacts of global change and ecosystem services; (5) to assess forest mortality events associated with climatic extremes; (6) to focus global change research on identifying and managing vulnerable areas; (7) to use the functional traits concept to study resilience after disturbance; (8) to study the relationship between genotypic and phenotypic diversity as a source of forest resilience; (9) to understand the balance between C storage and water resources; (10) to analyse the interplay between landscape-scale processes and biodiversity conservation; (11) to refine models by including interactions between drivers and socio-economic contexts; (12) to understand forest-atmosphere feedbacks; (13) to represent key mechanisms linking plant hydraulics with landscape hydrology.Main conclusions (1) The interactive nature of different global change drivers remains poorly understood. (2) There is a critical need for the rapid development of regional-and global-scale models that are more tightly connected with largescale experiments, data networks and management practice. (3) More attention should be directed to drought-related forest decline and the current relevance of historical land use.

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The Interactive Effects of Fire and Diversity on Short-Term Responses of Ecosystem Processes in Experimental Mediterranean Grasslands

Cited by 34 publications

References 39 publications

Plant Richness-Biomass Relationships in Restored Northern Great Plains Grasslands (USA)

Plant Richness-Biomass Relationships in Restored Northern Great Plains Grasslands (USA)

Citizens’ Perceptions on Water Conservation Policies and the Role of Social Capital

Reassessing global change research priorities in mediterranean terrestrial ecosystems: how far have we come and where do we go from here?

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