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  • Print publication year: 2015
  • Online publication date: December 2015

14 - Freshwater conservation planning



Freshwater fishes represent among the most diverse and threatened taxa globally, accounting for more than 25% of total vertebrates (> 30,000 species described), 37% of which are threatened with extinction (Darwall et al., 2008; Chapter 1). The poor conservation status of freshwater biodiversity is directly related to the pressure that these systems experience worldwide (Vörösmarty et al., 2010). Because of their importance to human welfare and development, freshwater ecosystems and biodiversity are subject to higher pressures and threats than are adjacent terrestrial ecosystems (Nel et al., 2007). Water pollution and abstraction coupled with invasive species and habitat modification (e.g. channelling and damming) are the principal threats to the conservation of freshwater biodiversity (Strayer & Dudgeon, 2010; Vörösmarty et al., 2010). These pressures are rapidly growing due to the increase of human population worldwide and the effect of climate change (Dudgeon et al., 2006; Chapter 3).

Although freshwater ecosystems and biodiversity are in urgent need of protection, there has been little emphasis on declaring protected areas for the primary purpose of conserving freshwater biodiversity (although see attempts in South Africa since the early 1970s (Roux & Nel, 2013 for a brief history) or the USA (Moyle & Yoshiyama, 1994)). Instead, uninformed opportunism has reigned, whereby the conservation of freshwater ecosystems has remained peripheral to conservation goals developed for terrestrial ecosystems, unless considered important for terrestrial biodiversity (Nel et al., 2007; Olden et al., 2010). The implementation of conservation is constrained by limited budgets and potential conflicts with other human uses. For this reason, it is unfeasible to protect all the areas that contribute to the persistence of biodiversity (Margules et al., 2002), and adequate planning is required. Conservation planning is a discipline that tries to deal with these issues to inform stakeholders and decision-makers on how to best invest limited resources available for conservation. The development of a conservation plan typically draws on knowledge spanning several scientific disciplines, increasingly also from the social sciences.

To be effective for freshwater conservation in general and fish in particular, protected areas must consider some particularities of freshwater ecosystems from the early planning stages (e.g. when deciding where to implement conservation) to the daily management. Freshwater ecosystems pose some unique challenges to the implementation of effective conservation (Abell, 2002), such as the importance of connectivity at maintaining natural processes and facilitating the propagation of threats (Linke et al., 2011).

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Abell, R. (2002). Conservation biology for the biodiversity crisis: a freshwater follow up. Conservation Biology, 16, 1435–1437.
Abell, R., Allan, J. D. & Lehner, B. (2007). Unlocking the potential of protected areas for freshwatersBiological Conservation, 134, 48–63.
Adams, V. M., Álvarez-Romero, J. G., Carwardine, J., et al. (2013). Planning across freshwater and terrestrial realms: co-benefits and tradeoffs between conservation actions. Conservation Letters, 7, 425–440.
Allan, J. D. (2004). Landscape and riverscapes. The influence of land use on river ecosystems. Annual Reviews of Ecology, Evolution and Systematics, 35, 257–284.
Arnell, N. W. (2003). Effects of IPCC SRES emission scenarios on river runoff: a global perspective. Hydrology and Earth Systems Science, 7, 619–641.
Arthington, A. H. (2012). Environmental Flows: Saving Rivers in the Third Millennium. Berkeley, CA:University of California Press.
Ausseil, A. G. E., Dymond, J. R. & Shepherd, J. D. (2007). Rapid mapping and prioritisation of wetland sites in the Manawatu–Wanganui Region, New Zealand. Environmental Management, 39, 316–325.
Ausseil, A. G. E., Chadderton, W. L., Gerbeaux, P., Stephens, R. T. T. & Leathwick, J. R. (2011). Applying systematic conservation planning principles to palustrine and inland saline wetlands of New Zealand. Freshwater Biology, 56, 142–161.
Balcombe, S. R., Arthington, A. H., Foster, N. D., et al. (2006). Fish assemblages of an Australian dryland river: abundance, assemblage structure and recruitment patterns in the Warrego River, Murray–Darling Basin. Marine and Freshwater Research, 57, 619–633.
Ball, I. R., Possingham, H. P. & Watts, M. (2009). MARXAN and relatives: software for spatial conservation prioritization. In Spatial Conservation Prioritisation: Quantitative Methods and Computational Tools. Oxford: Oxford University Press, pp. 185–195.
Barmuta, L. A., Linke, S. & Turak, E. (2011). Bridging the gap between ‘planning’ and ‘doing’ for biodiversity conservation in freshwaters. Freshwater Biology, 56, 180–195.
Bates, B. C., Kundzewicz, Z. W., Wu, S. & Palutikof, J. P. (2008). Climate Change and Water. Technical Paper of the Intergovernmental Panel on Climate Change. Geneva: IPCC Secretariat.
Bond, N. R., Lake, P. S. & Arthington, A. H. (2008). The impacts of drought on freshwater ecosystems: an Australian perspective. Hydrobiologia, 600, 3–16.
Bottrill, M. C., Joseph, L. N., Carwardine, J., et al. (2009). Finite conservation funds mean triage is unavoidable. Trends in Ecology and Evolution, 24, 183–184.
Bunn, S. E. & Arthington, A. H. (2002). Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity. Environmental Management, 30, 492–507.
Burgman, M. A., Possingham, H. P., Lynch, A. J. J., et al. (2001). A method for setting the size of plant conservation area. Conservation Biology, 15, 603–616.
Carini, G., Hughes, J. M. & Bunn, S. E. (2006). The role of waterholes as ‘refugia’ in sustaining genetic diversity and variation of two freshwater species in dryland river systems (Western Queensland, Australia). Freshwater Biology, 51, 1434–1446.
Carwardine, J., Wilson, K. A., Watts, M., et al. (2008). Avoiding costly conservation mistakes: the importance of defining actions and cost in spatial prioritization setting. PLoS ONE, 3, e2586.
Carwardine, J., O'Connor, T., Legge, S., et al. (2011). Priority Threat Management to Protect Kimberley Wildlife. CSIRO Ecosystem Sciences, Brisbane. (accessed 31 March 2011).
Castello, L., Viana, J. P., Watkins, G., Pinedo-Vasquez, M. & Luzadis, V. A. (2009). Lessons from integrating fishers of arapaima in small-scale fisheries management at the Mamirauá Reserve, Amazon. Environmental Management, 43, 197–209.
Ciarleglio, M., Barnes, J. W. & Sarkar, S. (2009). ConsNet: a new software for the selection of conservation area networks with spatial and multicriteria analysis. Ecography, 32, 205–209.
Crook, D. A., Reich, P., Bond, N. R., et al. (2010). Using biological information to support proactive strategies for managing freshwater fish during drought. Marine and Freshwater Research, 61, 379–387.
Darwall, W. R. T. & Vie, J. C. (2005). Identifying important sites for conservation of freshwater biodiversity: extending the species-based approach. Fisheries Management and Ecology, 12, 287–293.
Darwall, W., Smith, K., Allen, D., et al. (2008). Freshwater biodiversity – a hidden resource under threat. In Wildlife in a Changing World –An Analysis of the 2008 IUCN Red List of Threatened Species. Gland, Switzerland: Vié, IUCN, pp. 43–53.
Desmet, P. G., Cowling, R. M., Ellis, A. G. & Pressey, R. L. (2002). Integrating biosystematic data into conservation planning: perspectives from Southern Africa's Succulent Karoo. Systematic Biology, 51, 317–330.
Devictor, V., Mouillot, D., Meynard, C., et al. (2010). Spatial mismatch and congruence between taxonomic, phylogenetic and functional diversity: the need for integrative conservation strategies in a changing world. Ecology Letters, 13, 1030–1040.
Dudgeon, D., Arthington, A. H., Gessner, M. O., et al. (2006). Freshwater biodiversity: importance, threats, status and conservation challenges. Biological Reviews, 81, 163–182.
ESA. (1973). Endangered Species Act of 1973. Department of the Interior, US Fish and Wildlife Service Washington, DC 20240.
Esselman, P. C. & Allan, J. D. (2011). Application of species distribution models and conservation planning software to the design of a reserve network for the riverine fishes of northeastern Mesoamerica. Freshwater Biology, 56, 71–88.
European Council. (1992). Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora. Brussels.
Faith, D. P. & Walker, P. A. (1996). Environmental diversity: on the best possible use of surrogate data for assessing the relative biodiversity of areas. Biodiversity and Conservation, 5, 399–415.
Filipe, A. F., Marques, T. A., Seabra, S., et al. (2004). Selection of priority areas for fish conservation in Guadiana River Basin, Iberian Peninsula. Conservation Biology, 18, 189–200.
Fitzsimons, J. & Robertson, H. A. (2005). Freshwater reserves in Australia: directions and challenges for the development of a comprehensive, adequate and representative system of protected areas. Hydrobiologia, 552, 87–97.
Forest, F., Grenyer, R., Rouget, M., et al. (2007). Preserving the evolutionary potential of floras in biodiversity hotspots. Nature, 445, 757–760.
Funk, V. A. & Richardson, K. S. (2002). Systematic data in biodiversity studies: use it or lose it. Systematic Biology, 51, 303–316.
Gardner, T. A., Barlow, J., Araujo, I. S., et al. (2008). The cost-effectiveness of biodiversity surveys in tropical forests. Ecology Letters, 11, 139–150.
Gasith, A. & Resh, V. H. (1999). Streams in Mediterranean climate regions: abiotic influences and biotic responses to predictable seasonal events. Annual Review of Ecology and Systematics, 30, 51–81.
Gaston, K. J., Pressey, R. L. & Margules, C. R. (2002). Persistence and vulnerability: retaining biodiversity in the landscape and in protected areas. Journal of Biosciences, 27, 361–384.
Grantham, H. S., Wilson, K. A., Moilanen, A., Rebelo, T. & Possingham, H. P. (2009). Delaying conservation actions for improved knowledge: how long should we wait?Ecology Letters, 12, 293–301.
Grantham, H. S., Pressey, R. L., Wells, J. A. & Beattie, A. J. (2010). Effectiveness of biodiversity surrogates for conservation planning: different measures of effectiveness generate a kaleidoscope of variation. PLoS ONE, 5, e11430.
Haigh, S. M., Melhman, D. W. & Oring, L. W. (1998). Avian movements and wetland connectivity in landscape conservation. Conservation Biology, 12, 749–758.
Heiner, M., Higgins, J., Li, X. & Baker, B. (2011). Identifying freshwater conservation priorities in the Upper Yangtze River Basin. Freshwater Biology, 56, 89–105
Herbert, M. E., Mcintyre, P. B., Doran, P. J., Allan, J. D. & Abell, R. (2010). Terrestrial reserve networks do not adequately represent aquatic ecosystems. Conservation Biology, 24, 1002–1011.
Hermoso, V., Linke, S. & Prenda, J. (2009). Identifying priority sites for the conservation of freshwater fish biodiversity in a Mediterranean basin with a high degree of threatened endemics. Hydrobiologia, 623, 127–140.
Hermoso, V., Kennard, M., Pusey, B. & Douglas, M. (2011a). Identifying priority areas for the conservation of freshwater biodiversity. In Aquatic Biodiversity in Northern Australia: Patterns, Threats and Future. Pusey, B. J. (Ed.). Darwin: Charles Darwin University Press, pp. 133–149.
Hermoso, V., Linke, S., Prenda, J. & Possingham, H. P. (2011b). Addressing longitudinal connectivity in the systematic conservation planning of fresh waters. Freshwater Biology, 56, 57–70.
Hermoso, V., Kennard, M. J. & Linke, S. (2012a). Integrating multi-directional connectivity requirements in systematic conservation planning to prioritise fish and waterbird habitat in freshwater systems. Diversity and Distributions, 18, 448–458.
Hermoso, V., Ward, D. P. & Kennard, M. J. (2012b). Using water residency time to enhance spatio-temporal connectivity for conservation planning in seasonally dynamic freshwater ecosystems. Journal of Applied Ecology, 49, 1028–1035.
Hermoso, V., Ward, D. P. & Kennard, M. J. (2013a). Prioritizing refuge areas for freshwater biodiversity conservation in highly seasonal ecosystems. Diversity and Distributions, 19, 1031–1042.
Hermoso, V., Kennard, M. J. & Linke, S. (2013b). Data acquisition for conservation assessments: is the effort worth it?PLoS ONE, 8, e59662.
Hermoso, V., Januchowski-Hartley, S. R. & Pressey, R. L. (2013c). When the suit does not fit biodiversity: loose surrogates compromise the achievement of conservation goals. Biological Conservation, 159, 197–205.
Hess, G. R., Bartel, R. A., Leidner, A. K., et al. (2006). Effectiveness of biodiversity indicators varies with extent, grain, and region. Biological Conservation, 132, 448–457.
Higgins, J. V., Bryer, M. T., Khoury, M. L. & Fitzhugh, T. W. (2005). A freshwater classification approach for biodiversity conservation planning. Conservation Biology, 19, 432–445.
Hirzel, A. & Guisan, A. (2002). Which is the optimal sampling strategy for habitat suitability modeling. Ecological Modelling, 157, 331–341.
Holland, R. A., Darwall, W. R. T. & Smith, K. G. (2012). Conservation priorities for freshwater biodiversity: the Key Biodiversity Area approach refined and tested for continental Africa. Biological Conservation, 148, 167–179.
Hooper, D. U., Chapin, F. S., Ewel, J. J., et al. (2005). Effects of biodiversity on ecosystem functioning: a consensus of current knowledge. Ecological Monographs, 75, 3–35.
Hughes, J. B., Daily, G. C. & Ehrlich, P. R. (1997). Population diversity: its extent and extinction. Science, 278, 689–92.
ICES. (2005). Report of the study group on the status of diadromous fish species (SGSDFS). No. ICES CM 2005/I:02, pp. 56.
Januchowski-Hartley, S. R., Hermoso, V., Pressey, R. L., et al. (2011). Coarse-filter surrogates do not represent freshwater fish diversity at a regional scale in Queensland, Australia. Biological Conservation, 144, 2499–2511.
Januchowski-Hartley, S. R., Moon, K., Stoeckl, N. & Gray, S. (2012). Social factors and private benefits influence landholders’ riverine restoration priorities in tropical Australia. Journal of Environmental Management, 110, 20–26
Kelley, C., Garson, J., Aggarwal, A. & Sarkar, S. (2002). Place prioritization for biodiversity reserve network design: a comparison of the SITES and ResNet software packages for coverage and efficiency. Diversity and Distributions, 8, 297–306.
Kennard, M. J., Pusey, B. J., Olden, J. D., et al. (2010). Classification of natural flow regimes in Australia to support environmental flow management. Freshwater Biology, 55, 171–193.
Khoury, M. L., Higgins, J. & Weitzell, R. E. (2011). A freshwater conservation assessment of the Upper Mississippi River basin using a coarse- and fine-filter approach. Freshwater Biology, 56, 162–179.
Kirkpatrick, J. B. (1983). An iterative method for establishing priorities for the selection of nature reserves: an example from Tasmania. Biological Conservation, 25, 127–134.
Knight, A. T., Cowling, R. M., Rouget, M., et al. (2008). Knowing but not doing: selecting priority conservation areas and the research-implementation gap. Conservation Biology, 22, 610–617.
Larned, S. T., Datry, T., Arscott, D. B. & Tockner, K. (2010). Emerging concepts in temporary-river ecology. Freshwater Biology, 55, 717–738.
Lawrence, D. J., Larson, E. R., Liermann, C. A. R., et al. (2011). National Parks as protected areas for U.S. freshwater fish diversity. Conservation Letters, 4, 364–371.
Leathwick, J. R., Rowe, D., Richardson, J., Elith, J. & Hastie, T. (2005). Using multivariate adaptive regression splines to predict the distribution of New Zealand's freshwater diadromous fish. Freshwater Biology, 50, 2034–2052.
Leathwick, J. R,. Snelder, T., Chadderton, W. L., et al. (2011). Use of generalised dissimilarity modelling to improve the biological discrimination of river and stream classifications. Freshwater Biology, 56, 21–38.
Linke, S., Pressey, R. L, Bailey, R. C. & Norris, R. H. (2007). Management options for river conservation planning: condition and conservation re-visited. Freshwater Biology, 52, 918–938.
Linke, S., Turak, E. & Nel, J. (2011). Freshwater conservation planning: the case for systematic approaches. Freshwater Biology, 56, 6–20.
Linke, S., Kennard, M. J., Hermoso, V., et al. (2012). Merging connectivity rules and large-scale condition assessment improves conservation adequacy in a tropical Australian river. Journal of Applied Ecology, 49, 1036–1045.
Magalhães, M. F., Beja, P., Schlosser, I. J. & Collares-Pereira, M. J. (2007). Effects of multi-year droughts on fish assemblages of seasonally drying Mediterranean streams. Freshwater Biology, 52, 1494–1510.
Margules, C. R. & Pressey, R. L. (2000). Systematic conservation planning. Nature, 405, 243–253.
Margules, C. R., Pressey, R. L. & Williams, P. H. (2002). Representing biodiversity: data and procedures for identifying priority areas for conservation. Journal of Biosciences, 27, 309–326.
Moffet, A., Garson, J. & Sarkar, S. (2005). MultCSync: a sotware package for incorporating multiple criteria in conservation planning. Environmental Modelling and Software, 20, 1315–1322.
Moilanen, A., Franco, A. M. A., Early, R., et al. (2005). Prioritising multiple use landscapes for conservation: methods for large multi species planning problems. Proceedings of the Royal Society B, 272, 1885–1891.
Moilanen, A., Leathwick, J. & Elith, J. (2008). A method for freshwater conservation prioritization. Freshwater Biology, 53, 577–592.
Moilanen, A., Arponen, A., Stokland, J. & Cabeza, M. (2009). Assessing replacement cost of conservation areas: how does habitat loss influence priorities?Biological Conservation, 142, 575–585.
Morrongiello, J. R., Beatty, S. J., Bennett, J. C., et al. (2011). Climate change and its implications for Australia's freshwater fish. Marine and Freshwater Research, 62, 1082–1098.
Moyle, P. B. & Yoshiyama, R. M. (1994). Protection of aquatic biodiversity in California: a five tiered approach. Fisheries, 19, 6–18.
Myers, N., Mittermeier, R. A., Mittermeier, C. G., da Fonseca, G. A. B. & Kent, J. (2000). Biodiversity hotspots for conservation priorities. Nature, 403, 853–858.
Naidoo, R., Balmford, A., Ferraro, P. J., et al. (2006). Integrating economic cost into conservation planning. Trends in Ecology and Evolution, 21, 681–687.
Nel, J. L., Roux, D. J., Maree, G., et al. (2007). Rivers in peril inside and outside protected areas: a systematic approach to conservation assessment of river ecosystem. Diversity and Distributions, 13, 341–352.
Nel, J. L., Roux, D. J., Abell, R., et al. (2009). Progress and challenges in freshwater conservation planning. Aquatic Conservation: Marine and Freshwater Ecosystems, 19, 474–485.
Nel, J. L., Reyers, B., Roux, D. J., Impson, N. D. & Cowling, R. M. (2011). Designing a conservation area network that supports the representation and persistence of freshwater biodiversity. Freshwater Biology, 56, 106–124.
Olden, J. D. & Poff, N. L. (2005). Long-term trends in native and non-native fish faunas of the American Southwest. Animal Biodiversity and Conservation, 28, 75–89.
Olden, J. D., Kennard, M. J., Leprieur, F., et al. (2010). Conservation biogeography of freshwater fishes: recent progress and future challenges. Diversity and Distributions, 16, 496–513.
Olden, J. D., Kennard, M. J., Lawler, J. J. & Poff, N. L. (2011). Challenges and opportunities in implementing managed relocation for conservation of freshwater species. Conservation Biology, 25, 40–47.
Pépino, M., Rodríguez, A. & Magnan, P. (2012). Impacts of highway crossings on density of brook charr in streams. Journal of Applied Ecology, 49, 395–403.
Poff, N. L., Allan, J. D, Bain, M. B., et al. (1997). The natural flow regime: a new paradigm for riverine conservation and restoration. BioScience, 47, 769–784.
Possingham, H. P., Grantham, H. & Rondinini, C. (2007). How can you conserve species that haven't been found?Journal of Biogeography, 34, 758–759.
Pressey, R. L. (1994). Ad hoc reservations: forward and backward steps in developing representative reserve systems. Conservation Biology, 8, 662–668.
Pressey, R. L. (2004). Conservation planning and biodiversity: assembling the best data for the job. Conservation Biology, 18, 1677–1681.
Pressey, R. L., Possingham, H. P. & Margules, C. R. (1996). Optimality in reserve selection algorithms: when does it matter and how much?Biological Conservation, 76, 259–267.
Pressey, R. L., Cowling, R. M. & Rouget, M. (2003). Formulation of conservation targets for biodiversity pattern and process in the Cape Floristic Region, South Africa. Biological Conservation, 112, 99–127.
Pressey, R. L., Watts, M. E., Barrett, T. W. & Ridges, M. J. (2009). The C-Plan conservation planning system: origins, applications, and possible futures. In Spatial Conservation Prioritization: Quantitative Methods and Computational Tools. Oxford: Oxford University Press, pp. 211–234.
Pringle, C. M. (2001). Hydrologic connectivity and the management of biological reserves: a global perspective. Ecological Applications, 11, 981–998.
Rahel, F. J. (2013). Intentional fragmentation as a management strategy in aquatic systems. Biosciences, 63, 362–372.
Rea, J. H., Brinton, A. C. & Georges, A. (2009). Temporal and spatial variation in landscape connectivity for a freshwater turtle in a temporally dynamic wetland system. Ecological Applications, 19, 1288–1299.
Rivers-Moore, N. A. & Goodman, P. S. (2010). River and wetland classifications for freshwater conservation planning in KwaZulu-Natal, South Africa. African Journal of Aquatic Sciences, 35, 61–72.
Roberge, J. M. & Angelstam, P. (2004). Usefulness of the umbrella species concept as a conservation tool. Conservation Biology, 18, 76–85.
Rosset, V., Simaika, J. P., Arthaud, F., et al. (2013). Comparative assessment of scoring methods to evaluate the conservation value of pond and small lake biodiversity. Aquatic Conservation: Marine and Freshwater Ecosystems, 23, 23–36.
Roux, D. J. & Nel, J. L. (2013). Freshwater conservation planning in South Africa: milestones to date and catalysts for implementation. Water SA, 39, 151–163.
Roux, D., de Moor, F., Cambray, J. & Barber-James, H. (2002). Use of landscape-level river signatures in conservation planning: a South African case study. Conservation Ecology, 6, 6.
Roux, D. J., Nel, J. L., Ashton, P. J., et al. (2008). Designing protected areas to conserve riverine biodiversity: lessons from a hypothetical redesign of the Kruger National Park. Biological Conservation, 141, 100–117.
Saunders, D. L., Meeuwig, J. J. & Vincent, C. J. (2002). Freshwater protected areas: strategies for conservation. Conservation Biology, 16, 30–41.
Skaala, Ø., Helge-Johnsen, G., Lo, H., et al. (2014). A conservation plan for Atlantic salmon (Salmo salar) and anadromous brown trout (Salmo trutta) in a region with intensive industrial use of aquatic habitats, the Hardangerfjord, western Norway. Marine Biology Research, 10, 308–322.
Stanley, E. H. & Doyle, M. W. (2003). Trading off: the ecological effects of dam removal. Frontiers in Ecology and the Environment, 1, 15–22.
Strayer, D. & Dudgeon, D. (2010). Freshwater biodiversity conservation: recent progress and future challenges. Journal of the North American Benthological Society, 29, 344–358.
Strecker, A. L., Olden, J. D., Whittier, J. B. & Paukert, C. P. (2011). Defining conservation priorities for freshwater fishes according to taxonomic, functional, and phylogenetic diversity. Ecological Applications, 21, 3002–3013.
Taylor, P. D., Fahrig, L. & With, K. A. (2006). Landscape connectivity: a return to the basics. Connectivity Conservation. In Connectivity Conservation. Cambridge: Cambridge University Press, pp. 29–43.
Thieme, M., Lehner, B., Abell, R., et al. (2007). Freshwater conservation planning in data-poor areas: an example from a remote Amazonian basin (Madre de Dios River, Peru and Bolivia). Biological Conservation, 135, 484–501.
Turak, E. & Koop, K. (2008). A multi-attribute ecological river typology for assessing river condition and conservation planning. Hydrobiologia, 603, 83–104.
Turak, E. & Linke, S. (2011). Freshwater conservation planning: an introduction. Freshwater Biology, 56, 1–5.
Turak, E., Ferrier, S., Barrett, T., et al. (2011). Planning for persistence of river biodiversity: exploring alternative futures using process-based models. Freshwater Biology, 56, 39–56.
Turner, D. S. & List, M. D. (2007). Habitat mapping and conservation analysis to identify critical streams for Arizona's native fish. Aquatic Conservation: Marine and Freshwater Ecosystems, 17, 737–748.
Verissimo, D., MacMillan, D. C. & Smith, R. J. (2011). Toward a systematic approach for identifying conservation flagships. Conservation Letters, 4, 1–8.
Vörösmarty, C. J., McIntyre, P. B., Gessner, M. O., et al. (2010). Global threats to human water security and river biodiversity. Nature, 467, 555–561.
Ward, J. V. & Stanford, J. A. (1989). The four-dimensional nature of lotic systems. Journal of the North American Benthological Society, 8, 2–8.
Wenger, S. J., Isaak, D. J., Luce, C. H., et al. (2011). Flow regime, temperature, and biotic interactions drive differential declines of trout species under climate change. Proceedings of the National Academy of Sciences, 108, 14175–14180.
Williams, P., Gibbons, D., Margules, C., et al. (1996). A comparison of richness hotspots, rarity hotspots and complementarity areas for conserving diversity of British birds. Conservation Biology, 10, 155–174.
Williams, P. H. (2001). WORLDMAP Version4. Priority areas for biodiversity.