Transcript issues arising in kba delineation - Library

ISSUES ARISING IN KBA
DELINEATION
Centre for Biodiversity Conservation
Conservation International
Madagascar
26th July 2006
LAND MANAGEMENT UNIT
HOW TO DEFINE LMU ?
• KBA = Land management unit for
conservation, so it is logical to start with
existing protected areas
• For all KBAs there are already protected
areas in 62/164 (existing boundaries)- we
need to know what they contain in terms of
trigger species (mostly complete)
• Some protected areas are not KBAs
• Ecological requirements for the viability of
each species and delimited by natural barrier
or limit (geographical,, river basin)
• Landscape species are not well known, only
one or two species max known (e.g
Cryptoprocta ferox)
OVERLAPPING LAND MANAGEMENT
UNITS
IMPLEMENTATION OF DURBAN VISION
USING THE ZONING PROCESS
• Forest zoning process according to government vision on
national and regional forest management for the next 5
years, supported by USFS
• Biodiversity conservation goals are part of the zoning
process; delineation with habitat appropriate for trigger
species
• Other goals include usage rights definition, forest
exploitation zones, areas for mining
• Consultation at regional and communal level: at regional
level biodiversity conservation goals are developed and
conservation vision expressed, then management goals
discussed and refined through consultation at commune
and village level
Community consultation in
Mahavavy-Kinkony
Before…
After
ECOTOURISM
CONCESSION
CORE ZONE
MANAGED BY
COMMUNITY
RIVER
RICEFIELDS
CONTROL
OCCUPATION
ZONE
RICEFIELDS
NATIONAL
PARK
FOREST
NO WOODY PRODUCTS
CONCESSION
Examples for delineation
For terrestrial KBAs:
• Daraina: easy to delineate because data is
available and the trigger species only occur in
forest
• Ambohitantely: more difficult because of data
inaccuracies of the distribution maps of the trigger
species
For freshwater KBAs:
• Restricted range fish species: just delineate the
river reaches where it occurs
• Distribution throughout the basins: not delineated
DARAINA KBA
Presence of
Propithecus tattersalii
Case of Nosivolo
• 4 conservation sites
identified and delineated
(mostly in upper) where
threatened and endemic
species are gathered
• Conservation actions are
underway with local
associations (with socioeconomical context)
• Freshwater KBA:
conservation sites or
ensemble as a single unit?
HABITAT
FRAGMENTATION
NATURAL FRAGMENTATION
– Frequent for freshwater habitat (fish): there are
substantial differences in ichthyofaunal
assemblage in the upper and lower eastern river
basins that have traditionally been considered
as a single hydrographic site
– Naturally isolated rare habitats: for instance,
forests on unusual substratesAmbatovy/Analamay, swallowhole, dunes,
mangroves…
CONTINUOUS HABITAT
WITH POOR SPECIES DATA
AND NO USEFUL LAND
MANAGEMENT UNITS
CONTINUOUS HABITAT WITH
POOR SPECIES DATA
• Inside the corridor there is a portion where species data
don’t exist (e.g. Vondrozo-Karianga before 2005)
• Data available only on famous taxa as Mammals, Reptiles,
Amphibians, Birds
• KBAs are delimited around habitat (forest in altitudinal
bands, for instance) supposed by extrapolation to contain
trigger species
• There is no reason not to identify KBAs even where data
are imperfect, and that these can be refined later as data
improve
ECOTOURISM
CONCESSION
CORE ZONE
SAMPLING SITE
RIVER
RICEFIELDS
CONTROL
OCCUPATION
ZONE
RICEFIELDS
NATIONAL
PARK
FOREST
NO WOODY PRODUCTS
CONCESSION