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Executive
Summary -
Conifers: Status Survey and Conservation Action Plan
Conifers are one of the world's most important resources
of timber. Especially in the Northern Hemisphere, these
resources are vast and will, if managed wisely and used
sustainably, provide wood for a multitude of purposes
virtually indefinitely. Other functions, not the least
of which are ecological ones, provided by these vast
conifer forests, are equally important. Unsustainable
exploitation of these forests, while not yet banned,
is gradually giving way to better forestry in many countries
with substantial populations of this invaluable resource.
Why then this Action Plan? Why an IUCN/SSC Conifer Specialist
Group?
Globally, there are some 630
species of conifers, plus c. 170 taxa at infraspecific
ranks (subspecies and varieties), totalling 800 taxa.
Of these, 355 are listed as of conservation concern.
The total number of taxa threatened with extinction
(CR, EN, VU) is 200 (c. 25%). Seventy of these are likely
to become extinct in the foreseeable future if current
trends continue.
Conifers occur on all continents
except Antarctica, but their abundance is unevenly distributed
both in terms of individuals and taxa. Where the vast
boreal conifer forests stretch across continents and
contain billions of trees, they sustain no more than
a handful of species. In contrast, more southerly latitudes
in the Northern Hemisphere and all of the Southern Hemisphere
have either scattered conifer forests, or mixed conifer/hardwood
forests in which conifers occur in low densities, dispersed
among other trees or shrubs. Many species occupy very
small areas, often as relict populations of once greater
abundance. Some areas have a high diversity of species,
but hardly any of these species are abundant enough
to form forests of any appreciable size. A good example
is New Caledonia in the Southwest Pacific, an island
with 43 species of conifers, all endemic, in an area
about the size of Wales. Mexico has 42 species and 18
varieties of pines (Pinus), compared with eight species
and one variety in all of Canada and Alaska. Unknown
to many, c. 200 species of conifers are restricted to
the Southern Hemisphere, where vast conifer forests
are unknown. It is this scattered diversity that is
most threatened with extinction.
This Action Plan assesses conifer
diversity and its threats in Chapter 1. Endemic genera
are particularly important since they represent taxa
of high genetic distinction often represented by a single
species. We have indicated where these genera are concentrated.
In Chapter 2 we return to this theme and analyse the
data to indicate 'conifer hot spots' or areas where
there is a combination of high conifer diversity and
threats. Conifer conservation in such areas should be
a priority. While a generalised assessment of threats
in Chapter 1 and general conservation recommendations
in Chapter 2 often apply to such hot spots and may help
to identify the action that is needed, more detailed
regional accounts are provided for several of these
hot spots in Chapter 3. In addition, this Action Plan
is unique among IUCN's Plant Action Plans so far published
in that it gives the complete Global Red List of Conifers
using the 1994 IUCN Red List Categories and criteria.
Since this list includes distribution of the taxa, any
country can tally from this list its conifers which
are threatened globally. We have also developed a formula
for prioritising at the taxonomic level, resulting in
a short-list of threatened species. We think that we
have chosen objective criteria to do this, but since
conservation action often will be taken at regional
or local levels, taxa which are not short-listed remain
important targets. We encourage priority Action Plans
to be undertaken for the short-listed species. This
Action Plan presents ten species accounts. These accounts
should be used both as models for more such reports
which need to follow and as first steps towards species
Action Plans. In these species accounts, we have included
examples of 'success stories' to encourage conservationists
to begin work on other species.
With threats to conifers so multifarious
and widespread, the three groupings developed in the
Conifer Action Plan (Global Red List of Conifers, hot
spots, and short-list of threatened species) provide
focus for further assessment and conservation action.
In a summary of recommendations we call for:
- Conservation of existing
diversity through nine action points focusing on in
situ strategies supported where necessary by ex situ
conservation;
- Reduction of pressure on conifers as a resource
through four action points focusing on timber management
and market strategies.
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