The Tagliamento River: A model ecosystem of European importance

Tockner, Klement; Ward, J. V.; Arscott, David B.; Edwards, Peter J.; Kollmann, Johannes; Gurnell, Angela M.; Petts, Geoffrey E.; Maiolini, B.

doi:10.1007/s00027-003-0699-9

Cited by 211 publications

(161 citation statements)

References 50 publications

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“…For most research and management processes, the dynamics within these existing, modified systems are of great interest. However, understanding natural systems is also important, for example in studying hydromorphic processes and acting as references against which modified dynamics can be compared (Tockner et al, 2003), but to do so requires the effects of widespread modification to be circumvented. Coupled palaeohydrological and palaeoecological studies examining the behaviour of rivers prior to major human modifications provide one possibility (Brown, 2002).…”

Section: Variabilitymentioning

confidence: 99%

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Integrating ecology with hydromorphology: a priority for river science and management

Vaughan¹,

Diamond²,

Gurnell³

et al. 2007

Aquatic Conservation

285

217

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ABSTRACT1. The assessment of links between ecology and physical habitat has become a major issue in river research and management. Key drivers include concerns about the conservation implications of human modifications (e.g. abstraction, climate change) and the explicit need to understand the ecological importance of hydromorphology as prescribed by the EU's Water Framework Directive. Efforts are focusing on the need to develop 'ecohydromorphology' at the interface between ecology, hydrology and fluvial geomorphology. Here, the scope of this emerging field is defined, some research and development issues are suggested, and a path for development is sketched out.2. In the short term, major research priorities are to use existing literature or data better to identify patterns among organisms, ecological functions and river hydromorphological character. Another early priority is to identify model systems or organisms to act as research foci. In the medium term, the investigation of patternprocesses linkages, spatial structuring, scaling relationships and system dynamics will advance mechanistic understanding. The effects of climate change, abstraction and river regulation, eco-hydromorphic resistance/ resilience, and responses to environmental disturbances are likely to be management priorities. Large-scale catchment projects, in both rural and urban locations, should be promoted to concentrate collaborative efforts, to attract financial support and to raise the profile of eco-hydromorphology.3. Eco-hydromorphological expertise is currently fragmented across the main contributory disciplines (ecology, hydrology, geomorphology, flood risk management, civil engineering), potentially restricting research and development. This is paradoxical given the shared vision across these fields for effective river management based on good science with social impact. A range of approaches is advocated to build sufficient, integrated capacity that will deliver science of real management value over the coming decades.

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Section: Variabilitymentioning

confidence: 99%

“…In Europe, such systems are rare } and therefore valuable (e.g. Fiume Tagliamento; Tockner et al, 2003). Both approaches have weaknesses, stemming from incomplete information in reconstructing the past or questions over the generality of 'model rivers', but nevertheless can provide unique insights into the behaviour of 'natural' rivers.…”

Section: Variabilitymentioning

confidence: 99%

Integrating ecology with hydromorphology: a priority for river science and management

Vaughan¹,

Diamond²,

Gurnell³

et al. 2007

Aquatic Conservation

285

217

View full text Add to dashboard Cite

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“…Further detailed information on the Tagliamento catchment and the main study area can be found elsewhere (Ward et al 1999;Arscott et al 2002;Tockner et al 2003).…”

Section: Study Sitementioning

confidence: 99%

Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Indermaur¹,

Gehring²,

Wehrle³

et al. 2009

The American Naturalist

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Understanding individual space use remains a major issue in ecology, and it is complicated by definitions of spatial scale and the interplay of multiple factors. We quantified the effect of habitat and biotic and individual factors on space use by amphibians (Bufo bufo spinosus [BB] and Bufo viridis [BV]) that were radio-tracked in their terrestrial summer habitat. We analyzed two spatial scales, 50% core areas and 95% home ranges (excluding 50% core areas), thought to represent resting and foraging areas, respectively. The 50% core area of BB was best explained by habitat structure and prey density, whereas the 50% core area of BV was determined solely by habitat structure. This suggests that the resting and foraging areas of BB are not spatially separated. The 95% home range of BB was determined by prey density, while for BV both habitat structure and prey density determined home range size. We conclude that the terrestrial area requirements of amphibians depend on the productivity and spatiotemporal complexity of landscapes and that differential space use may facilitate their co-occurrence. Behavior-based a priori hypotheses, in combination with an information-theoretic approach and path analyses, provide a promising framework to disentangle factors that govern individual space use, thereby advancing home range studies. [BV]) that were radiotracked in their terrestrial summer habitat. We analyzed two spatial scales, 50% core areas and 95% home ranges (excluding 50% core areas), thought to represent resting and foraging areas, respectively. The 50% core area of BB was best explained by habitat structure and prey density, whereas the 50% core area of BV was determined solely by habitat structure. This suggests that the resting and foraging areas of BB are not spatially separated. The 95% home range of BB was determined by prey density, while for BV both habitat structure and prey density determined home range size. We conclude that the terrestrial area requirements of amphibians depend on the productivity and spatiotemporal complexity of landscapes and that differential space use may facilitate their co-occurrence. Behavior-based a priori hypotheses, in combination with an information-theoretic approach and path analyses, provide a promising framework to dis-

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“…At the same time, it is evident that the degree of deviation from natural conditions for both cases is different. This example can be related to the Italian river Tagliamento which is considered a model ecosystem of an Alpine river with undisturbed, braided channel pattern (Tockner et al 2003). Over the past century, the width and the braiding index of the Tagliamento decreased by half (Surian and Rinaldi 2004), partially as a result of the river adjustment to decreasing bedload supply and partially because of engineering works carried out along the entire reach length.…”

Section: European Standards Of Hydromorphological Assessmentmentioning

confidence: 99%

Assessment of river hydromorphological quality for restoration purposes: an example of the application of RHQ method to a Polish Carpathian river

et al. 2017

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Planning and implementation of effective restoration projects require appropriate assessment of a river's hydromorphological status. Two European standards on hydromorphological assessment of rivers and hydromorphological assessment methods used in Poland are reviewed in the context of their applicability for river restoration purposes. River Hydromorphological Quality assessment method is presented with a case study of the Biała River, Polish Carpathians, where this assessment was used as basis for a restoration project aimed to establish an erodible river corridor. The results of the assessment revealed significant differences in hydromorphological quality between unmanaged and channelized river crosssections, indicating channel regulation as a major cause of the hydromorphological degradation of the Biała and confirming the choice of the erodible river corridor as an appropriate method of its restoration. The assessment indicated hydromorphological features of the river that were severely modified within the channelized reaches and which are likely to improve the most with the removal of bank protection and allowing free channel migration.

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The Tagliamento River: A model ecosystem of European importance

Cited by 211 publications

References 50 publications

Integrating ecology with hydromorphology: a priority for river science and management

Integrating ecology with hydromorphology: a priority for river science and management

Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Assessment of river hydromorphological quality for restoration purposes: an example of the application of RHQ method to a Polish Carpathian river

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