The IUCN Red List Criteria

advertisement
We are working on a contract with National Grid to
undertake a first year of survey for wild blue lupines
and Karner blue butterflies/Frosted Elfins under
National Grid’s new Habitat Conservation
Plan…..nearly final and approved. Yea!!!
Anyways, do you have any students in mind that
might want to spend mid-May to mid-June, and
perhaps longer, mapping lupines and conducting
presence/absence butterfly surveys in the Queensbury,
Saratoga, Albany Area? If they are from here
originally and could live with family that would be
IUCN (International Union for Conservation of Nature)
great. They need to have a valid driver’s license. I am
NYSDEC Division of Fish,
Wildlife and Marine Resources: 42
paid internships available for
SUNY-ESF Students!
The New York State Department of Environmental Conservation’s Division of Fish, Wildlife and
Marine Resources has just added 16 more paid internships to the 26 already available for
the 2012 season for SUNY-ESF students. The following 42 internship opportunities are now
available for the spring/summer season: www.esf.edu/efb/gibbs/NYSDEC_2012.htm New
internships are highlighted in gray. If you have already applied you may reapply for the new
ones. No internships have yet been filled. Many internships now have detailed descriptions.
Currently enrolled students can work for up to 20 weeks and up to 800 hours. Students must be
enrolled in fall semester 2012 to be eligible. Pay rate is $10/hr for undergraduates and $15/hr
for graduate students.
If you are interested in applying for any of these positions, please send as a single document .pdf
attachment to an email to jpgibbs@esf.edu :
– a short cover letter that identifies the specific internship(s) you wish to be considered for
(please identify position number) and outlines your qualifications and interest in each
– includes a resume with your contact information (email and phone).
IUCN (International Union for Conservation of Nature)
IUCN “Redlist” exercise
• Review an outdated listing for an endangered
species (to be announced at start of next class)
• Understand how the classification process
works by working through a case study
IUCN (International Union for Conservation of Nature)
Overview of the IUCN Red List Unit
Cambridge, UK
IUCN (International Union for Conservation of Nature)
International Union for Conservation of Nature (IUCN)
IUCN Members
80 States
Commissions
(10,000 scientists & experts)
112
Government
agencies
>800
NGOs
IUCN Secretariat
1,100 staff in 62 countries, led by IUCN’s Director General (Julia Marton-Lefevre)
IUCN (International Union for Conservation of Nature)
IUCN Red List Unit
• Management of the IUCN Red List (database, web site)
• Assessment review
• Petitions and enquiries
• Training workshops
• Assessment workshops
• Other projects and Red List tools
̶ Red List Index
̶ Global Species Assessments
̶ Regional assessment initiatives
̶ Climate change and extinction risk assessment
IUCN (International Union for Conservation of Nature)
2000
2009
IUCN (International Union for Conservation of Nature)
What are we trying
to do?
• Identify and document those species most in
need of conservation attention if the global
extinction rates are to be reduced.
• Provide a global index to monitor the status of
the world’s biodiversity.
IUCN (International Union for Conservation of Nature)
The IUCN Red List Assessment:
An estimate of extinction risk
What is the likelihood of a species
Becoming extinct in the near future,
given current knowledge about population
trends, range, and recent, current or
projected threats?
IUCN (International Union for Conservation of Nature)
Illustration copyright Bob Diven
IUCN Red List Categories &
Criteria
Also refer to:
Guidelines for Using the IUCN Red List
Categories and Criteria: version 7.0 (August
2008)
Free download from the IUCN Species Survival
Commission web site (www.iucn.org/themes/ssc) or the
Red List web site (www.iucnredlist.org).
Version 2.3
3.1 (1994)
(2001)
IUCN (International Union for Conservation of Nature)
Terrestrial biodiversity
(6,260)
(9,990)
(5,488)
(910)
IUCN (International Union for Conservation of Nature)
Marine biodiversity
IUCN (International Union for Conservation of Nature)
Polidoro et al.
Freshwater biodiversity
Darwall et al.
IUCN (International Union for Conservation of Nature)
The Past:
IUCN (International Union for Conservation of Nature)
Introduction to the IUCN
Red Listing Process
IUCN (International Union for Conservation of Nature)
The IUCN Red List
Categories &
Criteria
All materials are freely
available on IUCN Red
List web site:
www.iucnredlist.org
IUCN (International Union for Conservation of Nature)
Rabb’s Fringe-limbed Treefrog
Ecnomiohyla rabborum
Category: Critically Endangered
CR A2ace;B1ab(iii)
Criteria & subcriteria
IUCN (International Union for Conservation of Nature)
The
IUCN
Categories
Extinct (EX)
Extinct in the Wild (EW)
Critically Endangered (CR)
Endangered (EN)
Vulnerable (VU)
Near Threatened (NT)
Least Concern (LC)
Data Deficient (DD)
Not Evaluated (NE)
IUCN (International Union for Conservation of Nature)
Extinct (EX)
A taxon is Extinct when there is no reasonable
doubt that the last individual has
died.
Extinct in the Wild (EW)
Dodo, Raphus cucullatus
A taxon is Extinct in the Wild when it is known only
to survive in cultivation, in captivity or as a
naturalized population (or populations)
well outside the past range.
IUCN (International Union for Conservation
of Nature)
Photo © Craig Hilton-Taylor
Franklinia,
Franklinia alatamaha
A taxon is threatened when the best available evidence
indicates that it meets any of the criteria A to E for the
thresholds stated in one of the three threatened categories:
Critically Endangered, Endangered or Vulnerable.
Critically Endangered (CR)
CR taxa are considered to be facing an extremely
high risk of extinction in the wild
Photo © Wendy Strahm
Endangered (EN)
Mandrinette, Hibiscus
fragilis
EN taxa are considered to be facing a
very high risk of extinction in the wild
Black-browed Albatross,
Thalassarche
melanophrys
Photo © Tony Palliser
Vulnerable (VU)
Golden Pagoda,
VU taxa are considered to be facing a high risk
of
IUCN (International Union for Conservation
Mimetes of Nature)
extinction in the wild
chrysanthus
Photo © Craig HiltonTaylor
Near Threatened (NT)
A taxon is Near Threatened when it has been evaluated
against the criteria and does not qualify for CR, EN or
VU now, but is close to qualifying for
or is likely to qualify for a threatened
category in the near future.
Photo © H. Fraga
Macaronesian Laurel, Laurus azorica
Least Concern (LC)
A taxon is Least Concern when it has been evaluated against
the criteria and does not qualify for CR, EN,
VU or NT. Widespread and abundant taxa
are included in this category.
IUCN (International Union for Conservation of Nature)
Photo © Caroline Pollock
Olive Baboon, Papio anumbis
Data Deficient (DD)
A taxon is Data Deficient when there is inadequate
information to make a direct, or indirect, assessment of its
risk of extinction based on its distribution
and/or population status.
Tree Tomato
Solanum [Cyphomandra] betacea
Not Evaluated (NE)
A taxon is Not Evaluated when it has not
yet been evaluated against the criteria IUCN (International Union for Conservation of Nature)
The IUCN Red List Criteria
IUCN (International Union for Conservation of Nature)
Nature of the Criteria
THREATENED
CATEGORIES
CRITERIA
A
Population
reduction
B
Restricted
geographic range
C
Small population
size & decline
D
Very small or
restricted
population
E
Quantitative
analysis
Critically Endangered (CR)
Quantitative
thresholds
Endangered (EN)
Vulnerable (VU)
IUCN (International Union for Conservation of Nature)
Why use multiple criteria?
Not all the criteria are appropriate to all taxa.
•
•
•
All taxa being assessed must be evaluated
against each criterion.
Meeting any one of the criteria qualifies a
taxon for listing at that level of threat
All criteria met at the highest level of threat
should be listed.
IUCN (International Union for Conservation of Nature)
Criterion A
Past, present or future population reduction
Population
Size
Time
IUCN (International Union for Conservation of Nature)
Criterion A
Based on any of four criteria:
A1: Population reduction in past and causes of
decline now ceased
A2: Population reduction in past and causes of
decline ongoing
A3: Population reduction expected in future
A4: Population reduction in past AND future
IUCN (International Union for Conservation of Nature)
Criterion B
Restricted geographic range and
fragmentation, continuing decline or extreme
fluctuations
IUCN (International Union for Conservation of Nature)
Criterion B
Based on either of two sub-criteria:
B1: Estimated extent of occurrence
AND / OR
B2: Estimated area of occupancy
AND at least TWO of a-c:
a. Severely fragmented or few locations
b. Continuing decline
c. Extreme fluctuations
IUCN (International Union for Conservation of Nature)
Criterion B
Subcriterion B1
Subcriterion B2
Extent of occurrence
estimated to be:
Area of occupancy
estimated to be:
CR
< 100 km²
< 10 km²
EN
< 5,000 km²
< 500 km²
VU
< 20,000 km²
< 2,000 km²
IUCN (International Union for Conservation of Nature)
Criterion B
AND at least TWO of a, b or c:
a. Severely
fragmented or
# locations:
CR
EN
VU
1
5
 10
b. Continuing decline in
any of the following:
c. Extreme fluctuation in
any of the following:
(i) EOO
(i) EOO
(ii) AOO
(ii) AOO
(iii)Area, extent and/or
quality of habitat
(iii) # locations or
subpopulations
(iv) # locations or
subpopulations
(iv) # mature individuals
(v) # mature individuals
IUCN (International Union for Conservation of Nature)
Criterion C
Small population size and continuing decline
IUCN (International Union for Conservation of Nature)
Criterion C
Based on small population size AND either C1 or C2:
C1: Continuing decline in population size at a specified rate
OR
C2: Continuing decline in population size at any, unspecified rate
AND either C2a or C2b:
C2a: (i) very small subpopulations, OR (ii) most mature
individuals are in one subpopulation
C2b: extreme fluctuations in number of mature individuals
IUCN (International Union for Conservation of Nature)
Criterion C
Thresholds for criterion C
Population size is estimated at:
CR
< 250 mature individuals
EN
< 2,500 mature individuals
VU
< 10,000 mature individuals
IUCN (International Union for Conservation of Nature)
Criterion C
Subcriterion C1
Estimated continuing decline of:
CR
 25% within 3 years or 1
generation
EN
 20% within 5 years or 2
generations
VU
 10% within 10 years or 3
generations
IUCN (International Union for Conservation of Nature)
Criterion C
Subcriterion C2
Observed, projected or inferred continuing decline at any rate
AND at least one of the following:
CR
C2a(i).
C2a(ii).
All subpopulations
have:
One subpopulation
contains:
< 50 mature
individuals
EN
< 250 mature
individuals
VU
< 1,000 mature
individuals
 90% of the
mature
individuals
C2b.
 95% of the
mature
individuals
There are
extreme
fluctuations in
number of
mature
individuals.
100% of the
mature
IUCN (International Union for Conservation of Nature)
individuals
Criterion D
Very small or restricted population
IUCN (International Union for Conservation of Nature)
Criterion D
Criterion D is split into D for the CR and EN categories; and D1 and
D2 for the VU category.
D. Total current
population size
estimated as:
CR
< 50 mature
individuals
EN
< 250 mature
individuals
NOTE: for the VU D2,
there should be a
plausible threat that is
likely to rapidly affect
the population.
D1. Total current
population size
estimated as:
VU
D2. The population
has a very restricted
AOO (typically <20
km²) or is known from
very few locations
< 1,000 mature
IUCN (International
Union for Conservation
of Nature)
(typically
≤5).
individuals
Criterion E
Quantitative analysis
= oh ohh!
IUCN (International Union for Conservation of Nature)
Criterion E
Based on quantitative analysis showing a probability
of extinction in the wild is at least:
50%
20%
Critically
Endangered
Within 10 years
or 3 generations
Endangered
Within 20 years
or 5 generations
10%
Vulnerable
Within 100 years
Up to a maximum of 100 years in the future
IUCN (International Union for Conservation of Nature)
Download