Species Profile

Gibson's Big Sand Tiger Beetle

Scientific Name: Cicindela formosa gibsoni
Taxonomy Group: Arthropods
Range: Alberta, Saskatchewan
Last COSEWIC Assessment: November 2012
Last COSEWIC Designation: Threatened
SARA Status: No schedule, No Status

Individuals of this species may be protected under Schedule 1 under another name; for more information see Schedule 1, the A-Z Species List, or if applicable, the Related Species table below.


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Quick Links: | Description | Habitat | Biology | Threats | Protection | National Recovery Program | Documents

Image of Gibson's Big Sand Tiger Beetle

Description

Gibson's Big Sand Tiger Beetle, Cicindela formosa gibsoni, is one of five subspecies of Cicindela formosa. It has long, narrow legs and antennae, large mandibles, and is one of the largest tiger beetles in North America. Adult Gibson's Big Sand Tiger Beetles can be distinguished from other subspecies of C. formosa by the expanded pale maculations covering over 60% of the elytra (hardened front wings) and bluish-green colour underneath. Like other species of Cicindela, the larvae are grub-like with an armoured head capsule and large mandibles. Nearly all of the Gibson's Big Sand Tiger Beetle’s range is found in Canada and they are emblematic of imperilled sand dune flora and fauna. Cicindela formosa and its subspecies are significant models for ecological and evolutionary studies. (Updated 2017/07/27)

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Distribution and Population

The global distribution of the Gibson's Big Sand Tiger Beetle is centred on southwestern Saskatchewan with two small disjunct populations in Colorado and Montana. Its Canadian distribution is associated with large dune complexes particularly the Great Sand Hills, Pike Lake and Dundurn sand hills near Saskatoon, and the Elbow Sand Hills near Douglas Provincial Park. The western edge of its range is in the Empress Sand Hills along the Alberta/Saskatchewan border. (Updated 2017/07/27)

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Habitat

Preferred adult and larval habitat is sparsely vegetated, dry, sandy areas of blowouts, sand hills, and the margins of larger sand dunes. This open sandy habitat has declined due to dune stabilization over the past several decades and further declines are projected. (Updated 2017/07/27)

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Biology

Like other tiger beetles, the Gibson's Big Sand Tiger Beetle undergoes complete metamorphosis with an egg, larval, pupal, and adult stage. In Canada, their life span is three years, with two years spent in the larval stage. Gibson's Big Sand Tiger Beetles are predators in both the adult and larval stages. Adults are active during the day hunting small arthropods. Larvae reside in a vertical tunnel with a small pit-like opening at its mouth. They are active during the day and night and ambush ants and other small arthropods that fall into their tunnel. (Updated 2017/07/27)

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Threats

The main threat to Gibson's Big Sand Tiger Beetle in Canada is the loss of suitable habitat due to continued stabilization of dunes by vegetation. The sand dunes with which it is associated in Canada are derived from glacial deposits, which have been stabilizing with vegetation during the last 200 years or so. Less than 1% of the dunes within the Canadian range of Gibson's Big Sand Tiger Beetle are currently bare sand. (Updated 2017/07/27)

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Protection

Federal Protection

Provincial and Territorial Protection

To know if this species is protected by provincial or territorial laws, consult the provinces' and territories' websites.

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Documents

PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.

6 record(s) found.

COSEWIC Status Reports

  • COSEWIC Assessment and Status Report on the Gibson's Big Sand Tiger Beetle Cicindela formosa gibsoni in Canada (2013)

    Gibson's Big Sand Tiger Beetle, Cicindela formosa gibsoni, is one of five subspecies of Cicindela formosa. It has long, narrow legs and antennae, large mandibles, and is one of the largest tiger beetles in North America. Adult Gibson's Big Sand Tiger Beetles can be distinguished from other subspecies of C. formosa by the expanded pale maculations covering over 60% of the elytra (hardened front wings) and bluish-green colour underneath. Like other species of Cicindela, the larvae are grub-like with an armoured head capsule and large mandibles.

Response Statements

  • Response Statement - Gibson's Big Sand Tiger Beetle (2013)

    This very restricted subspecies, with most of its populations in Canada, requires open sand dune areas. This habitat is declining throughout the Prairies as a result of a dune stabilization trend. Loss of historical ecological processes such as bison-induced erosion, fire, and activities of native people, as well as possible accelerators such as increase in atmospheric CO2, nitrogen deposition, and invasive alien plant species, may also be important factors in open sand reduction. There are believed to be fewer than 73 sites and a 10% possibility of extinction within 100 years based on rates of decline of open sand dunes.

Orders

  • Order Acknowledging Receipt of the Assessments Done Pursuant to Subsection 23(1) of the Act (2017)

    His Excellency the Governor General in Council, on the recommendation of the Minister of the Environment, acknowledges receipt, on the making of this Order, of the assessments done pursuant to subsection 23(1) of the Species at Risk Act by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) with respect to the species set out in the annexed schedule.
  • Order Amending Schedule 1 to the Species at Risk Act (2017)

    Biodiversity is rapidly declining worldwide as species become extinct. Today’s extinction rate is estimated to be between 1 000 and 10 000 times higher than the natural rate. Biodiversity is positively related to ecosystem productivity, health and resiliency (i.e. the ability of an ecosystem to respond to changes or disturbances). Given the interdependency of species, a loss of biodiversity can lead to decreases in ecosystem function and services (e.g. natural processes such as pest control, pollination, coastal wave attenuation, temperature regulation and carbon fixing). These services are important to the health of Canadians, and also have important ties to Canada’s economy. Small changes within an ecosystem resulting in the loss of individuals and species can therefore result in adverse, irreversible and broad-ranging effects.

COSEWIC Annual Reports

  • COSEWIC Annual Report – 2012-2013 (2013)

    Under Canada’s Species at Risk Act (SARA), the foremost function of COSEWIC is to “assess the status of each wildlife species considered by COSEWIC to be at risk and, as part of the assessment, identify existing and potential threats to the species”. COSEWIC held two Wildlife Species Assessment Meetings in this reporting year (October, 2012 to September 2013) from November 25 to November 30, 2012 and from April 28 to May 3, 2013. During the current reporting period, COSEWIC assessed the status or reviewed the classification of 73 wildlife species. The wildlife species assessment results for the 2012-2013 reporting period include the following: Extinct: 0 Extirpated: 2 Endangered: 28 Threatened: 19 Special Concern: 19 Data Deficient: 4 Not at Risk: 1 Total: 73 Of the 73 wildlife species examined, COSEWIC reviewed the classification of 50 species that had been previously assessed. The review of classification for 26 of those species resulted in a confirmation of the same status as the previous assessment.

Consultation Documents

  • Consultation on Amending the List of Species under the Species at Risk Act: Terrestrial Species – December 2013 (2013)

    The Government of Canada is committed to preventing the disappearance of wildlife species at risk from our lands. As part of its strategy for realizing that commitment, on June 5, 2003, the Government of Canada proclaimed the Species at Risk Act (SARA). Attached to the Act is Schedule 1, the list of the species provided for under SARA, also called the List of Wildlife Species at Risk. Endangered or Threatened species on Schedule 1 benefit from the protection of prohibitions and recovery planning under SARA. Special Concern species benefit from its management planning. Schedule 1 has grown from the original 233 to 518 wildlife species at risk. Please submit your comments by March 23, 2014, for terrestrial species undergoing normal consultations and by October 23, 2014, for terrestrial species undergoing extended consultations. Consultation paths.