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Report on the Biodiversity of Inland Waters Workshop


'Biodiversity of Inland Waters' Workshop

A preparatory workshop for the 8th Global Biodiversity Forum (GBF8) and 3rd meeting of the Subsidiary Body on Scientific, Technical and Technological Advice (SBSTTA3)


Organized by The IUCN Commission on Ecosystem Management (CEM),
The Ramsar Bureau, and
Wetlands International

with the generous support of the Dutch Government

and held at Wetlands International Headquarters, Wageningen, the Netherlands, on 10-12 July 1997

Produced by the IUCN Commission on Ecosystem Management
Royal Holloway Institute of Environmental Research
University of London, UK.
Fax: +44 1784 477427
Tel: +44 1784 477404
Email: l.safford@rhbnc.ac.uk


Contents

INTRODUCTION
ACKNOWLEDGEMENTS
TECHNICAL PARTICIPANTS
OBSERVERS
OBJECTIVES OF WORKSHOP
OUTPUTS OF WORKSHOP
Proposed recommendations for submission by SBSTTA to COP4
Introductory Rationale
Recommended programme of work 1998-2002
Article 5 - Cooperation
Article 6 - General Measures for Conservation and Sustainable use
Article 7 - Identification and Monitoring
Article 8 - In-Situ Conservation
Article 9 - Ex-situ Conservation
Article 10 - Sustainable Use of Components of Biological Diversity
Article 12 - Research and Training
Article 13 - Public Education and Awareness
Article 14 - Impact Assessment and Minimising Adverse Impacts
Article 18 - Technical and Scientific Cooperation
"Areas to develop" analysis


Introduction

The biodiversity and therefore integrity of inland water systems are increasingly threatened by human activity world wide. To counteract this trend, the Convention on Biological Diversity (CBD) passed Decisions III/13 and III/21, which decree that CBD will work on inland water ecosystems up to and beyond its 4th Convention of Parties (COP4), and that the Ramsar Convention on Wetlands shall be a lead partner for CBD in the implementation of CBD activities related to wetlands. To assist in these decisions, a CBD scientific paper and various other initiatives have been produced. In response to the need to coordinate these initiatives, the IUCN Commission on Ecosystem Management (CEM) initiated this workshop, in close collaboration with the Ramsar Bureau and Wetlands International, in preparation for the Inland Water Systems and Biodiversity Workshop at GBF8. The CEM produced a detailed technical review of the following documents:

which facilitated discussions at the workshop and led to the production of the 'areas to develop' analysis and contributed to the Proposed recommendations for submission by SBSTTA to COP4.

The workshop was a preparatory phase of the CEM initiative 'The Biodiversity of Inland Water Systems: trends and options for improved conservation and management'. The success of the workshop is a reflection of the strength of the partnership between the lead partners of this project: CEM, The Ramsar Bureau, and Wetlands International, and of the role of the other project partners, some of whom were unable to attend the preparatory workshop but will give their input to the workshop products before and during GBF8. These include:
Diversitas
the International Geosphere-Biosphere Programme (IGBP)
the Scientific Committee on Problems of the Environment (SCOPE)
the IUCN Species Survival Commission (SSC)
the IUCN Environmental Law Programme
the World Conservation Monitoring Centre (WCMC)
the World Resources Institute (WRI)
the World Wide Fund for Nature (WWF), and
the World Bank.

Acknowledgements

The CEM technical review was drafted by Mr Charlie Avis. Mr Marcel Vernooy is thanked for coordination of support from the Netherlands Government.

Technical Participants

  1. Dr. Martine ALLARD, National Water Research Institute, Environment Canada, CANADA and member of the Commission on Ecosystem Management
  2. Dr. Tom BUIJSE, Institute for Inland Water Management and Waste Water Treatment, THE NETHERLANDS
  3. Dr. Neil COX, World Conservation Monitoring Centre, UK
  4. Dr Patricia FOSTER-TURLEY, IUCN Species Survival Commission, White Oak Conservation Centre, USA
  5. Dr. John GEE, Institute of Biological Sciences, University of Wales, UK, and member of the Commission on Ecosystem Management
  6. Dr. Joshiah KATONDO, National Environment Council, TANZANIA
  7. Dr. Ken LUM, Wetlands International - Americas (CANADA)
  8. Ms Caroline MARTINET, IUCN Biodiversity Team, SWITZERLAND
  9. Professor Edward MALTBY, IUCN Commission on Ecosystem Management and Royal Holloway Institute for Environmental Research, UK
  10. Dr. Michael MOSER, Wetlands International - Europe, Africa & Middle East, THE NETHERLANDS
  11. Mr. Faizal PARISH, Wetlands International Asia-Pacific, MALAYSIA
  12. Dr. Lesley SAFFORD, IUCN Commission on Ecosystem Management, UK
  13. Mr. Michael SMART, Ramsar Convention Bureau, SWITZERLAND
  14. Dr. Rob UIJTERLINDE, Institute for Inland Water Management and Waste Water Treatment, THE NETHERLANDS
  15. Mr. Erwin van MAANEN, Wetlands International, THE NETHERLANDS

Observers

  1. Ms Wendelien ORDELMAN, Wetlands International
  2. Dr Deborah PROCTER, Joint Nature Conservation Committee; on behalf of the Department of the Environment, Transport and the Regions, UK
  3. Dr. Peter SCHEI, Directorate for Nature Management, NORWAY, and Chair, CBD/SBSTTA
  4. Ms Chikako TAKASE, Convention on Biological Diversity, CANADA
  5. Mr. Marcel VERNOOY, Ministry of Agriculture, Nature Management and Fisheries, THE NETHERLANDS
  6. Mr. Vincent van den BERK, National Reference Centre for Nature Management, Ministry of Agriculture, Nature Management and Fisheries, THE NETHERLANDS


Objectives of Workshop

General

To bring together scientific and technical organizations working on biodiversity of inland water ecosystems, with a view to coordinating and strengthening their input to the forthcoming GBF8 and SBSTTA meetings, and in the longer term to implementation of the CBD and the Ramsar Convention

Specific

To discuss a technical review of the CBD Secretariat paper and other initiatives put forward to maintain the integrity of inland water ecosystems and their biodiversity and to produce:

In view of the above, discuss the agenda for the GBF8 Workshop.


Outputs of Workshop

The outputs of the workshop are available for general circulation to all interested parties. Comments received by 21 August (to the CEM secretariat, attention Dr L. Safford) will be presented together with this report for further discussion at GBF8 and the final product delivered to SBSTTA3 and integrated to the final products presented to SBSTTA3.


Proposed recommendations for submission by SBSTTA to COP4

Introductory Rationale

The flow of inland waters from mountains or lowlands to the sea, and from continental drainage basins to land-locked depressions, is an essential part of the globe's hydrological cycle. It links atmosphere, biosphere and hydrosphere; surface and groundwaters, fresh and saline waters, and a wide range of ecosystem types.

The apparently inexhaustible supply of freshwater stimulates a wide variety of human activities which have now come increasingly into conflict with one another and with the needs of other species. Degradation of water quality and reduction in water quantity available from surface and groundwater resources clearly show that inland waters are not inexhaustible resources. The well-being of both people and ecosystems depending on these resources is severely endangered. The sustainable and wise use of inland waters and their biodiversity has become a matter of general and great concern underlined by the priority identified by the CBD.

Inland waters include a rich variety of ecosystems, many of which are physically and biologically connected by the flow of water and the movement of species. The biodiversity of individual ecosystems is maintained by physical, chemical and biological interactions more or less controlled by hydrology. These connections are of paramount importance for the maintenance of biodiversity and the welfare of human communities; they are significant over a wide range of scales, local, regional, national, and global. The ecosystem-based approach recognizes the overriding importance of the dynamic interactions among biotic and abiotic elements and the significance of adapting a sufficiently large scale of management intervention to influence those activities or processes which control ecosystem structure and functioning. The most common scale at which the ecosystem-based approach can be implemented for sustainable resource use is that of the catchment. This enables consideration of all the links and impacts which may occur over a range of ecosystem types connected by water flow. It is important to remember, however, that catchments for groundwaters and surface waters may not be the same.

The hidden value of inland water ecosystems
The value of the biodiversity of inland waters, as a resource for human populations, is well appreciated. However, the value of the functions and services they provide (which maintain biodiversity and contribute to human welfare) are often 'hidden' and consequently less well appreciated. Biodiversity cannot be sustainably managed in isolation from the functions and services of ecosystems; components of biodiversity maintain these functions and services.

Inland water ecosystems provide food, water, and fuel, and in addition perform important hydrological services, such as control of floods, cleaning water, recycling waste products and regulation of local and global climates. The value of these services are often only appreciated when they are lost. The most accurate economic assessment of the impacts of different management regimes on inland water ecosystems are those which take into account the economic and social value of these functions, services, and biodiversity of inland water ecosystems.

The inter-relationship of biodiversity and ecosystem maintenance
Inland water ecosystems with impoverished biodiversity may lack the ability to adjust to environmental impacts or changes. Thus biodiversity is important to an ecosystem's:

An additional requirement for maintaining inland water ecosystems is that the quantity and quality of water in the ecosystem is sufficient to maintain ecosystem functioning.

Other overarching themes:


Recommended programme of work 1998-2002

It is proposed that SBSSTA3 recommend to COP4 the following:

Initiation of a four-year programme of work on the biodiversity of inland water ecosystems, aiming to promote the maintenance and sustainable use and management of the functions and services provided by inland water ecosystems for the benefit of human welfare and biodiversity. The specific roles of biodiversity at different scales should be identified. Inland water ecosystems provide links to and between other ecosystems, communities, and countries. Therefore, the work plan must ensure that;

Specifically, the work plan may encompass the following recommendations under the following articles of the Convention on Biological Diversity (Bold type indicates priority).

Article 5 - Cooperation

Article 6 - General Measures for Conservation and Sustainable use

Article 7 - Identification and Monitoring

Article 8 - In-Situ Conservation

Article 9 - Ex-situ Conservation

Article 10 - Sustainable Use of Components of Biological Diversity

The continued availability of inland water ecosystem resources is an indispensable requirement for the health and prosperity of human communities and is vital for the maintenance of biodiversity. Biodiversity is a key determinant of the structure and functioning of the ecosystem complexes which help maintain the hydrological cycle and water quality. Understanding of the interactions between the biotic and abiotic components of the ecosystem is essential for developing sustainable use models of inland water resources. Sustainable use practices should be applied at the catchment scale because at this level the hydrological cycle links the atmosphere with land and water ecosystems.

Article 12 - Research and Training

Research is essential to improve the level of existing knowledge and to fill gaps identified by the changing needs of society. Yet the application of science and development of better policies for inland waters should not be delayed by current imperfections in information or understanding. Training should focus on broadening the level of interdisciplinary understanding of the scientific fields underpinning the sustainable management of inland waters whilst also ensuring that the necessary specialized biological, taxonomic and ecological expertise is maintained and built upon in succeeding generations.

Current research priorities focus on four key objectives:

Article 13 - Public Education and Awareness

Article 14 - Impact Assessment and Minimizing Adverse Impacts

Article 18 - Technical and Scientific Cooperation


'Areas to develop' analysis

From discussions of a technical review prepared by the IUCN CEM, a series of areas of the CBD Secretariat paper 'Biological diversity of inland waters' (Draft dated 30 June) were identified that would benefit from development. It is suggested that the following recommendations be considered as a supplement to the CBD Secretariat paper.

Paras = paragraphs of the CBD paper.

Subject Area of CBD Document

Area to develop in CBD Secretariat Document

Is knowledge available?

Recommendation

Status and Trends and Threats (paras 6-17) Status and trends particularly on scale of loss and nature of ecosystem degradation. Knowledge available for some regions - but information for many regions patchy or unavailable. Expand knowledge in certain regions, and on nature of certain trends. Recognize need to harmonize regional methodologies for recording trends.

Encourage assessment of threats through an ecosystem by threats matrix

. Proximate or underlying causes of trends. Knowledge limited. Emphasize that paper is dealing with proximate rather than underlying causes of trends.
. Status, trends and threats to genetic diversity and ecosystem functioning and services. Knowledge available for some threats in some regions. Acknowledge significance of and encourage research on genetic diversity and ecosystem functioning and services.
. The necessity for conflict resolution to reduce competition for water resources, for example between aquaculture and water extraction. Lack of guidelines for managing competing demands. Develop guidelines for managing the competing demands for inland water resources in order to maintain and protect biodiversity
. Large scale (i.e. global) threats, for example, global or regional climate change. Lack of knowledge of consequences of these threats. Recognize need to understand consequences of large scale threats such as climate change.
Definition of inland waters Relationship of definitions of 'inland water ecosystems' and 'wetlands' especially in relation to estuarine ecosystems. Yes but uncoordinated Recognize that definitions are complicated because these ecosystems are highly variable and dynamic. The role of hydrological regimes is of key importance in controlling environmental and ecological functioning. Recognition of inland waters in the context of ecosystems enables focus (a) at different scales and (b) on linkages with other systems such as marine and atmospheric.

Amend para 7 by deleting 'which are traditionally grouped as inland wetlands'. Retain footnote No.2

Advise Ramsar to provide paper clarifying the definition of Ramsar Wetland Types with respect to types of inland water ecosystems

Categories of inland waters and biodiversity Coverage of saline and peatland ecosystems Available but not incorporated. Significance of saline and peatland inland waters should be acknowledged and special needs examined.
. Coverage of species other than fish species Relatively easily available. Redress balance in CBD document by including reference to un-emphasised classes of biodiversity (see below).
. Coverage of biodiversity of tropical inland water ecosystems Insufficient available. Acknowledge significance of, and encourage research on, the biodiversity of tropical inland water ecosystems.
. Coverage of:
· plants
· water birds
· invertebrates
· species which are heavily dependent on, but do not reside permanently in, inland water, and
· 'keystone' species, that is species which contribute disproportionately to the maintenance of the ecosystem.
Available, but not incorporated. Incorporate information on these groups into paper.
. Biodiversity of different ecosystems may be of equal importance, irrespective of its relative 'richness'. Evaluation of biodiversity does not depend just on number of species. Naturalness, uniqueness and functioning are important. Point in general not widely appreciated. Acknowledge this point (amend para 30 of CBD paper) and encourage understanding and application of this principle.
. Meaning of 'indicator'. Need to provide information on the type, significance and scope of indicators, for use in monitoring the status of biodiversity, functions and services of inland water ecosystems at different scales. Further guidance is required on type, significance and scope of use of indicators at different scales of biodiversity indicators. Endorse para 74 (b) on possible future programme of work: indicator development.
Functions of inland water systems Functions of inland water ecosystems, including their importance for control of local climate. Adequately covered in introduction of this document. Refer to introduction of this document.

Make an information document on ecosystem functioning. available to SBSTTA.

Increase awareness of essential role of hydrological relationships in maintenance of biodiversity and of role of inland water ecosystems in delivering hydrological services, e.g. flood control.

Ecosystem approach (paras 18-21) Use of term 'ecosystem approach' rather than 'ecosystem-based approach' . Available. Recommend use of 'ecosystem-based approach' instead of 'ecosystem approach'.
. Nature and implications of an ecosystem-based approach. Available. Recommend development of guidelines for the application of an ecosystem-based approach for the management of inland waters for biodiversity (para 43.iv).
. Constraints of the application of an ecosystem-based approach to the managing the biodiversity of inland water ecosystems. Not known in sufficient detail. Recommend and encourage research on the constraints of application of an ecosystem-based approach to the management of the biodiversity of inland water ecosystems
Biogeography of inland waters The importance of inland water biogeography in managing the biodiversity of inland water ecosystems, for example, as temporary refuges for migratory species and for metapopulations (several inland waters ecosystems may each support a small sub-population, which together form a larger significant and interacting population of a species) Point generally appreciated, but need for wider and more integrated knowledge of biogeography. Amend para. 30 to acknowledge this point and encourage understanding and application of this principle.
. . Knowledge of rationale available. Encourage development of methodologies to identify biogeographically important areas of inland water ecosystems at different scales, to establish priorities and aid decision makers. For example, in the design and allocation of protected area networks and bufferzones.
Sustainable resource use (paras 25, 34 -39) Scientific criteria to determine sustainability of : 1. stocks and populations for ensuring sustainable use of biological resources of inland water ecosystems 2. biodiversity functions and services of inland water ecosystems. Limited. Acknowledge importance of scientific criteria and encourage their establishment.
Equitable sharing of benefits (paras 40-42) The scientific basis for establishing Mechanisms for Coordination of Access to inland water and inland water ecosystem resources and benefits, including biological resources, by all stakeholders Limited. Recommend scientific guidelines for integrated management and equitable sharing of inland water and the resources and benefits of inland water ecosystems, including biological resources.

Need to examine scientific and operational tools for promotion of equitable distribution of costs and benefits of resource use.

Equitable sharing of benefits (paras 40-42) . . .
In situ conservation (paras 26-30)

Restoration of inland water ecosystems

Role of restoration, rehabilitation and creation of inland water ecosystems. Limited - often expensive and untested science. Recognize that restoration means restoration of function and services not simply morphological appearance.

Acknowledge that · restored, rehabilitated or created inland water ecosystems can not replace natural sites · the success of restoration, rehabilitation and/or creation of inland water ecosystems can be limited and expensive compared to the maintenance of existing natural sites, but · may be important in keeping some small transient types of inland water ecosystems (e.g. Ponds) in existence.

Protected areas Inclusion of groundwater and endemic species in management plans for protected areas. Available. Recognize the need to include groundwater and endemics in management plans for protected areas.
Ex situ conservation (paras 31-33) Evaluation of role of ex-situ conservation. Available. Acknowledge that Ex-situ conservation is: · generally of limited relevance and value in maintaining the natural biodiversity, functions and services of inland waters · but of importance in specific cases and in the development of aquaculture where it may reduce pressure on natural populations.
Legislative frameworks Not covered because authors consider this is a matter for the COP. . Consider whether legislation of the Ramsar Convention is sufficient to cover enforcement of the CBD in relation to inland water ecosystems. - request information paper from Ramsar on this point.
Role of ongoing research Fundamental role of science. Role known and identified, but constraints on effective delivery of science need investigation. Ensure the effective transmission of the best available science to assist decision makers.

Transfer experiences from case studies, and among regions and different social contexts.

Coordination between agencies Information on mechanisms for coordination. Mechanisms for coordination are not in place or are not fully applied. Encourage the establishment of mechanisms to foster collaboration to: · make better use of the resources and institutional frameworks already available and, · avoid duplication of effort.

Encourage the establishment of mechanisms for coordinating supra national, international, national and local collaboration.


For further information, please contact Dr Lesley Safford (l.safford@rhbnc.ac.uk) or the Ramsar Convention Bureau, Rue Mauverney 28, CH-1196 Gland, Switzerland (tel +41 22 999 0170, fax +41 22 999 0169, e-mail ramsar@hq.iucn.org). Posted 15 August 1997, Dwight Peck, Ramsar.

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