life+arcos: coastal dune habitat restoration in northern spain

Download LIFE+ARCOS: coastal dune habitat restoration in northern Spain

Post on 30-Dec-2016

216 views

Category:

Documents

1 download

Embed Size (px)

TRANSCRIPT

  • LIFE+ARCOS Coastal dune habitat restoration in

    northern Spain

    THE EX SITU CONSERVATION SCOPE

    J.I. Alonso Felpete

    INDUROT UNIVERSITY OF OVIEDO

    LIFE13 NAT/ES/000883 LIFE-ARCOS 1

    www.arcoslife.eu @infoarcoslife

  • Overview of the Cantabrian dunes

    (Distribution of main dune systems in Europe Doody, 2001)

    1. Dunes are scarce and irregularly distributed

    2. Dunes are among the most threatened habitats in terms of surface lost

    3. They are included in Prioritised Action Plans for Spain

    How scarce are grey dunes on the Cantabrian coast? Working area: 380 km long

    Grey dunes surface: 290 ha

    The Netherlands: 290 km of dunes Grey dunes surface: 15660 ha

  • Some in situ actions in progress

    1. Elimination of AIS 2. Protection of dunes 3. Dynamics (sand traps) 4. Dynamics (pines removal) 5. Assessment coastal drift

    trends 6. Plantation of structural and

    non structural species

  • Main threat: abiotic natural processes

    1. The quick evolution of the front dune backwards (specially in the last 4 years) explains how urgent is to take measures against loss of biodiversity

    Front dune movement Period Avge movement (m) Avge Speed (m/year)

    1956-2007 33.25 0.65

    2007-2011 -15.13 -3.78

    2011-2014 -11.85 -3.95

    2014-2015 2.66 2.66

    Studies on the evolution of the front dune have been carried out for the 10 sites

  • When do ex situ conservation comes in?

    Prior to any restoration action we make ourselves some questions

    How do we increase the biodiversity in areas where no nurse plants are present?

    Are we prepared against the loss of biodiversity in the future?

    By conserving seeds we are able to anticipate the loss of biodiversity if dune surface decreases due to catastrophic events that jeopardize the survival of species (many of them protected)

    Short and long term benefits of seed conservation

    Have we got enough plants for restabilising the original biodiversity and richness, specially on grey dunes? (in the context of the project)

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 6

    The ex situ - in situ perspective

    IMPROVE THE EXPERTISE ON COSTAL RESTORATION FROM A BIOGEOGRAPHIC POINT OF VIEW

    ARCOS promotes the use of combined ex situ and in situ conservation techniques on the proposed dune conservation actions

    1. Ex situ conservation techniques are deployed in order to:

    Evaluate how resistant are seeds of dune species to storage conditions Provide information about possible taxonomic differences Provide information about seed dormancy Ensure that genetic diversity preserved and that plants introduced come from a

    well known origin

    2. Culture essays are deployed for drawing up the best culture protocol for dune plant species production (nursery or in the wild)

    3. Contributes to the conservation of biodiversity and enables post LIFE actions to be carried out

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 7

    Ex situ conservation makes sense on protected species

    Glaucium flavum Otanthus maritimus Medicago marina Chamaesyce peplis

    Halting against the loss of biodiversity also means fighting against the loss of genetic diversity

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 8

    Importance of genetic diversity

    Climate change effects may result on the loss of natural populations of these species

    Alyssum loiseleurii ssp. loisseleurii Alyssum loiseleurii ssp. gallaecica

    Galium arenarium

    Crucianella maritima

    NARROW ENDEMIC SPECIES

    LIMIT OF DISTRIBUTION

    LIMIT OF DISTRIBUTION

  • Importance of non structural species on grey dunes

    NON STRUCTURAL SPECIES (working with 28 species)

    STRUCTURAL SPECIES

    Ammophila arenaria Elymus farctus boreoatlanicus

    Many of them on prioritized habitat 2130* grey dunes

    Beta maritima Cakile maritima Calystegia soldanella Crucianella maritima Dianthus hyssopifolius Eryngium maritimum Festuca rubra var. littoralis Glaucium flavum Helichrysum stoechas Honckenya peploides Iberis procumbens Medicago marina Otanthus maritimus Pancratium maritimum

    Alyssum loiseleurii subsp loiseleurii Dianthus hyssopifolius Galium arenarium Euphorbia paralias Festuca vasconcensis Helichrysum stoechas Herniaria ciliolata Koeleria albescens Linaria supina subsp. maritima Solidago virgaurea subsp macrorhiza

    Bolded species are present in Regional Protection Cataloges

    High diversity

    Low diversity

    Non Prioritized habitats: embrionic and white dunes

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 10

    Ex situ conservation into practice

    Seeds from 28 non structural species were collected in the 10 targeted sites 125 distinct accessions (average rate 10.2 accessions / site)

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 11

    Seed characterization

    Seed morphometric characterization of dune species In absence of genetic studies, analysis of morphometric parameters can help on defining if there are differences between populations

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 12

    Are these seeds useful for restoration?

    We have to ensure that seeds being conserved still retain the

    capacity to germinate

    OTHERWISE CONSERVATION OF SEEDS MAKES NOSENSE

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 13

    Culture protocols

    Variables considered: - Pot volume root development - Substrate mix effects on germination

  • 25/07/2016 LIFE13 NAT/ES/000883 LIFE-ARCOS 14

    Field essays: transplanting

    Seedlings are transplanted into the dune and survival rates are

    measured

  • Conclusions

    1. In the Cantabrian coast where dunes are small, scarce and they are irregularly distributed, loss of dune surface may arise to irreversible consequences in terms of loss of biodiversity.

    2. Ex situ conservation actions should also be considered in dune restoration projects as they provide mechanisms to fight against climate change effects and eases post LIFE actions.

    3. More information on dune species culture protocols should be discussed in knowledge exchange networks. Best practice guides and a European database of seed banks conserving dune species should be created.

    4. Ensure an optimal conservation of dune species can highly contribute to the reestablishment of good conservation status of dune habitats in the future

  • LIFE+ARCOS team

    T.E. Daz A. Bueno

    C. Ley

    J.I. Felpete

    J. Varas

    L. Oreja

    E. Iglesias

    L. Garca

    THANKS FOR YOUR

    ATTENTION!!

    J.L. Tejerina

    J. Marqunez

    J. Zulaika

    R. Menendez S. Fernndez

    Botanists

    Geomorphologist

    Public bodies

    Restoration expert

    LIFE+ARCOSCoastal dune habitat restoration in northern SpainTHE EX SITU CONSERVATION SCOPEDianummer 2Dianummer 3Dianummer 4Dianummer 5Dianummer 6Dianummer 7Dianummer 8Dianummer 9Dianummer 10Dianummer 11Dianummer 12Dianummer 13Dianummer 14Dianummer 15Dianummer 16