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New research results indicate Alberta's grizzly bear population is precarioiusly small
The latest phase of Alberta's grizzly bear population census indicates the population is less than half the size it was estimated to be in 2002 – which means less than 500 grizzly bears in the entire province.
According to the cutting-edge, DNA-based population estimate that was conducted by the Foothills Model Forest, there are approximately 90 grizzlies between Highway 1 and Highway 3, 45 between Highway 1 and Highway 11 = 45 (range 41-52), and 43 between Highway 11 and Highway 16. This brings the number of bears in the southern half of the province, the best grizzly bear habitat in the entire province, to only 177 bears.
We don’t yet know how many grizzly bears there are north of highway 16, but given what we do know, as described in the bulleted points below, we’ll be lucky to find another 100 bears up there.
- Grizzly bear densities are so low in this area that the study methods used in the south half of the province will not work . In fact, researchers don’t yet know how to get a good population estimate for an area with such low grizzly bear density.
- Efforts to collar bears in this area in 2006 met with very little success. Researchers caught mostly black bears in their traps and, when you catch black bears, it means there aren’t any grizzlies around.
- The area does not have a lot of good habitat for grizzly bears.
We also won’t know for another year how many grizzly bears there are south of Highway 3 but, given it is a relatively small area with ranches spreading right out to the mountains, we’ll be lucky to find 50 bears in this area.
Given the 177 grizzlies in the south half of the province, an additional 150 bears estimated to exist in the un-measured areas of the province, the entire provincial population is very likely less than 500 bears.
Summary of Alberta Grizzly Bear Population Estimates
2002
Government estimates that the total number of grizzly bears in Alberta (provincial lands and national parks) is 1000 (including 180 from national parks in Alberta).
2003
Government report finds flaws with previous model used to provide 2002 estimate; new estimate in this report is 500 grizzlies on provincial lands (680 including national parks).
2004
Provincial recovery team adopts expert opinion that there are fewer than 700 grizzly bears total in all of Alberta.
2005
DNA data for first two phases of provincial study show 42 grizzlies occupying habitat between highways 11 and 16, and 45 occupying habitat between highways 1 and 11.
2007
DNA data for area between highways 1 and 3 shows 90 bears.
How Alberta determines status of wildlife:
- IUCN (World Conservation Union Criteria for Listing Species) criteria used by Alberta’s Endangered Species Conservation Committee (ESCC) and the Committee on the Status of Endangered Wildlife in Canada (COSEWIC).
- IUCN criteria is based on number of mature breeding individuals in the population.
- The number of mature breeding individuals is estimated to be ½ the total population size, therefore in Alberta we have less than 250 mature breeding grizzly bears (based on total population size of less than 500).
- IUCN criteria state that if number of mature breeding individuals is less than 1000 population considered "threatened." If the numbers is less than 250, the population is considered "endangered."
Alberta’s Endangered Species Conservation Committee recommended the grizzly bear be listed as a threatened species in 2002, when they believed the population was 1000 strong (500 mature breeding individuals.)
Kansas 2002,Status of the Grizzly Bear (Ursus arctos) in Alberta. Alberta Sustainable Resource Development, fish and Wildlife Division and Alberta Conservation Assosciation, Wildlife Status Report No. 37, Edmonton, AB. (Pg 12 ) http://www.srd.gov.ab.ca/fishwildlife/status/grizzly/body.html
Alberta Grizzly Bear Recovery Team. 2005. Draft Alberta grizzly bear recovery plan. Alberta Sustainable Resource Development, Fish and Wildlife Division, Alberta Species at Risk Recovery Plan No. x. Edmonton, AB. pp. http://srd.alberta.ca/fishwildlife/wildlifeinalberta/grizzlybearmanagement/pdf/GrizzlyRecoveryPlanFeb052.pdf
Boulanger et al 2005. Grizzly Bear Population and Density Estimates for the 2005 Alberta (Proposed) Unit 4 Management Area Inventory and 2004 Population Inventory and Density Estimates for the Alberta 3B and 4B Grizzly Bear Management Area. Alberta Sustainable Resource Development, Fish and Wildlife Division. http://www.srd.gov.ab.ca/fishwildlife/wildlifeinalberta/grizzlybearmanagement/pdf/Population_Estimate_3B4B_FINAL_nov_7_05.pdf or go to http://www.srd.gov.ab.ca/fishwildlife/wildlifeinalberta/grizzlybearmanagement/default.aspx and click on DNA reports May 2005 and December 2005
Stenhouse et al 2005 Amended Report on Alberta Grizzly Bear Assessment of Allocation. Alberta Sustainable Resource Development, Fish and Wildlife Division.
Secrecy surrounds grizzly bear
management in Alberta
Important information supporting
the suspension of Alberta’s spring grizzly
bear hunt is being kept from the public. With
a decision on the hunt due at the end of the month,
conservation groups are concerned that the government
will allow the hunt to proceed again this year.
One of the documents being kept from the public
is the draft Grizzly Bear Recovery Plan. The plan,
which recommends the suspension of the hunt, is
still under review and has yet to be accepted
and released despite being in the government’s
hands for over a year.
But there is more critical information being
withheld according to Dr. Tracey Henderson, program
director with the Grizzly Bear Alliance. “The
government now has very accurate DNA-based, grizzly
bear population estimates for large areas of the
province, which they are refusing to release publicly,”
says Dr. Henderson. Her group and the Jasper Environmental
Association have both tried unsuccessfully, via
the provincial Freedom of Information Act, to
access the data. They have also been denied access
to total grizzly bear mortality numbers for 2005,
information that has always been readily accessible
in the past.
The government’s DNA-based population studies
covered the area between highways 1 and 16 and
carried a provincial tax dollar price tag of three
quarters of a million dollars.
Conservationists allege that if these population
estimates were higher than expected, that good
news story would have been released right away.
But the fact that the data, some of which have
been complete for almost a year, have been withheld
from the public, strongly suggests population
numbers are lower than previously thought.
Prior to these latest secret population estimates,
a government commissioned study released in 2003
estimated the population of grizzly bears on provincial
lands to be just over 500 (which meant about 700
grizzlies total in the province adding those found
in Alberta’s National Parks.) An error was
found in that study, the model was re-run in early
2005, but the government has also refused to release
this information to the public.
“They don’t want the public to know
what a sorry state our grizzly bear population
is in” says Jim Pissot with Defenders of
Wildlife Canada. “As long as they keep things
quiet, they can continue to allow the spring hunt
and encourage the ongoing destruction of grizzly
bear habitat in the name of short term economic
gain.”
In 2002 the government’s Endangered Species
Conservation Committee (ESCC) recommended the
grizzly be listed as threatened and the hunt suspended.
Since that time the province’s own Grizzly
Bear Recovery Team and thousands of Albertans
have repeatedly asked for the suspension of the
hunt and listing the species, while the government
has repeatedly pointed to the inaccurate population
estimates as a reason for inaction.
“We have better population data than ever
before,” says Nigel Douglas Conservation
Specialist with Alberta Wilderness Association.
“It’s time to release it to the public
and get serious about recovering the species.
We need to suspend the hunt, list the grizzly
bear as a threatened species, stop the ongoing
destruction of grizzly bear habitat and implement
the draft Grizzly Bear Recovery Plan in its entirety.”
For more information, click
here.
Draft recovery plan set to go before
the ESCC
The draft grizzly bear recovery
plan has passed an initial review by the Alberta
government and is on its way to the Endangered
Species Conservation Committee for review. Will
it pass muster? (To read a detailed analysis of
the draft recovery plan, click
here.)
Two years in the making, the draft
recovery plan is the child of a multi-stakeholder
committee that included representatives from the
scientific and conservation committees (including
a representative from the GBA) but was dominated
by pro-industry representatives from government
and the forestry and oil & gas industries.
Although there are some excellent strategies in
the plan, much is missing, and the lack of appropriate
standards and measurements leaves the plan exceedingly
weak.
The ESCC recommended in 2002 that
the grizzly bear be listed as a threanten species,
and that the hunt be immediately suspended. Once
the ESCC reviews the draft , Minister of Sustainable
Resource Development Dave Coutts will need to
decide whether, and how much of it will be funded
and implemented. The 1990 Grizzly Bear Management
Plan, the last such management plan for grizzly
bears in Alberta, has been virtually ignored for
15 years.
To read a detailed analysis of the
draft recovery plan,
click here.
A recent study by a doctoral student
at the University of Alberta has found that current
logging practices in the Foothills Model Forest
near Hinton would eliminate grizzly bears from
all of the study area that lies outside of Jasper
National Park. Using extremely sophisticated computer
models, Dr. Scott Nielsen found that the increased
number of roads necessary to log the area would
result in so many dead bears that the population
would likely disappear within 50 years. Additional
roads are also built to build and operate oil
and gas wells in the area.
Scientific research indicates that
because high road densities increase the number
of people able to access grizzly bear habitat,
they are also highly correlated with increased
numbers of dead bears. Research indicates that
road densities in excess of 0.6 km/sq. km usually
result in unsustainable mortality rates that see
grizzly bear populations decline and eventual
disappear. Click
here to read Dr. Nielsen's PhD dissertation.
BearSafe
Program coming to Alberta
The Grizzly Bear Alliance has been
awarded $20,000 by Alberta
Ecotrust to bring an on-the-ground BearSafe
Communitiies Program to Alberta. Starting in 2005,
the GBA will research other "Bear Aware"
programs and develop one that meets specific needs
in Alberta. The GBA will then work with communities
in priority areas to implement the BearSafe Program.
Bear-proofing communities in grizzly
bear habitat is one of many recommendations of
the draft recovery plan that was recently sent
to the Minister of Sustainable Resource Development
for approval. (See article
below.) GBA hopes to be able to work with
provincial and municipal governments and other
stakeholders to make Alberta a safer place for
both bears and people.
Similar programs have been effective
in British Columbia, Ontario, the United States
and Alberta's national parks to reduce the bear-human
conflicts that have lead to hundreds of dead and
dislocated bears. Stay tuned for more details.
As far as plans go, it's
better than nothing
The Grizzly Bear Recovery Team has finalized
a draft recovery plan for Alberta's grizzly bear
population. Two years in the making, the plan
is supposed to provide a recipe for ensuring the
long-term persistence of a self-sustaining grizzly
bear population in Alberta.
The draft plan will make its way to recently
appointed SRD Minister Dave Coutts' desk, where
he'll decide what to do with it. In Alberta, the
minister is not obligated to adopt or implement
recovery plans developed by recovery teams. It
is up to his discretion whether to adopt and implement
all or part of the plan. Coutts, who is new to
the job, should have his hands full with this
one.
While details will not be released for some time,
a sneak peak indicates that the draft plan is
pretty weak. But as one recovery team member was
overheard saying, "It's better than nothing."
That remains to be seen.
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