Species Profile

Davis's Shieldback

Scientific Name: Atlanticus davisi
Taxonomy Group: Arthropods
COSEWIC Range: Ontario
COSEWIC Assessment Date and Status Change: November 2020
COSEWIC Status: Threatened
COSEWIC Status Criteria: B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)
COSEWIC Reason for Designation: This flightless katydid is found only in six small areas of the sand barren and oak savannah habitats of the Norfolk Sand Plain in southwestern Ontario, where it occurs with other rare species of conservation concern such as Fern-leaved Yellow False-foxglove and Virginia Goat’s-rue. The Canadian population is estimated at fewer than 1500 mature individuals. The species has presumably declined over the past 150 years due to the over 90% reduction of dry oak woodland, savannah, and sand barren habitats in southern Ontario. This species depends on fire-maintained ecological communities, and the quality and quantity of this habitat have declined as a result of fire-suppression, forest succession, afforestation efforts, and invasive species. These threats continue with one site likely extirpated as a result of land clearing as recently as 2020.
COSEWIC History of Status Designation: Designated Threatened in November 2020.
SARA Status: No schedule, No Status
Date of Listing (yyyy-mm-dd):

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.

Please note that this information is provided for general information purposes only. For the most up to date and accurate list of species listed under the Species at Risk Act, please see the Justice Laws Website.

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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.

4 record(s) found.

COSEWIC Status Reports

Response Statements

  • Response Statement - Davis's Shieldback (2022-01-10)

    This flightless katydid is found only in six small areas of the sand barren and oak savannah habitats of the Norfolk Sand Plain in southwestern Ontario, where it occurs with other rare species of conservation concern such as Fern-leaved Yellow False-foxglove and Virginia Goat’s-rue. The Canadian population is estimated at fewer than 1500 mature individuals. The species has presumably declined over the past 150 years due to the over 90% reduction of dry oak woodland, savannah, and sand barren habitats in southern Ontario. This species depends on fire-maintained ecological communities, and the quality and quantity of this habitat have declined as a result of fire-suppression, forest succession, afforestation efforts, and invasive species. These threats continue with one site likely extirpated as a result of land clearing as recently as 2020.

COSEWIC Annual Reports

  • COSEWIC Annual Report 2020 to 2021 (2021-10-12)

    Over the past year COSEWIC assessed a total of 66 wildlife species, of which 4 were assigned a status of Not at Risk. Of these 66, COSEWIC re-examined the status of 41 wildlife species; of these, 80% were reassessed at the same or lower level of risk. To date and with the submission of this report, COSEWIC’s assessments now include 826 wildlife species in various risk categories including 369 Endangered, 196 Threatened, 239 Special Concern, and 22 Extirpated (i.e. no longer found in the wild in Canada). In addition, 19 wildlife species have been assessed as Extinct, 62 wildlife species have been designated as Data Deficient, and 202 have been assessed as Not at Risk.

Consultation Documents

  • Consultation on Amending the List of Species under the Species at Risk Act: Terrestrial Species January 2022 (2022-01-10)

    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. Extirpated, Endangered and Threatened species on Schedule 1 benefit from the protection afforded by the prohibitions and from recovery planning requirements under SARA. Special Concern species benefit from its management planning requirements. Schedule 1 has grown from the original 233 to 640 wildlife species at risk. Please submit your comments by May 10, 2022, for terrestrial species undergoing normal consultations and by October 10, 2022, for terrestrial species undergoing extended consultations. For a description of the consultation paths these species will undergo, please visit the Species at Risk (SAR) Public Registry website at: The Minister of the Environment's Response to Species at Risk Assessments.
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