Data and code for forecasting overwintering mortality of Spathius galinae in North America

Loading...

Persistent link to this item

https://doi.org/10.13020/rhzw-dk37
https://hdl.handle.net/11299/219452

Statistics

View Statistics

Keywords

cold tolerance

emerald ash borer

parasitoid

supercooling

eclosion

Collection period

2018-09-01
2020-09-01

Date completed

2021-01-01

Date updated

Time period coverage

Geographic coverage

Source information

Journal Title

Journal ISSN

Volume Title

Title

Data and code for forecasting overwintering mortality of Spathius galinae in North America

Published Date

2021-04-26

Authors

Wittman, Jacob T

Aukema, Brian H

Duan, Jian J

Venette, Robert C

Group

Author Contact

Wittman, Jacob T
wittm094@@umn.edu

Type

Dataset
Experimental Data
Field Study Data
Statistical Computing Software Code

Abstract

From publication: Evaluating the cold tolerance of biological control agents is often necessary to optimize their release and performance. We used field and laboratory assays to determine the cold hardiness of the parasitoid Spathius galinae Belokobylskij & Strazanac, an approved classical biological control agent of emerald ash borer (Agrilus planipennis Fairmaire) in North America. Supercooling points and lower lethal temperature of mature (cocooned) S. galinae larvae were measured in controlled cooling assays in the laboratory. Most S. galinae larvae died after reaching their supercooling point, which occurred at -25.0°C on average. Several larvae, however, initiated freezing but later eclosed, suggesting S. galinae may be partially freeze tolerant. Supercooling points were not affected by chilling rate. In the winter of 2019 – 2020, we monitored development of mature S. galinae larvae in ash segments above and beneath the snow in three locations in Minnesota, USA. Nearly 100% of S. galinae larvae died after air temperatures reached -29°C in Minnesota. Using models developed from our data, we forecast eclosion rates of S. galinae based on minimum winter temperatures across the range of ash (Fraxinus spp.) in North America. Our results indicate that S. galinae populations may suffer high overwintering mortality in areas where winter temperatures regularly decrease below -28°C, but a small portion of the population may be able to survive lower temperatures.

Description

This repository contains data and code required to reproduce the analyses and figures in the associated manuscript.

Referenced by

To be added once published

Related to

Replaces

License

Attribution-ShareAlike 3.0 United States
http://creativecommons.org/licenses/by-sa/3.0/us/

Publisher

Collections

Data Repository for U of M (DRUM)

Funding information

Environmental and Natural Resources Trust Fund overseen by the Legislative Citizen's Commission on Minnesota Resources Project M.L. 2017 Chpt. 96 Subd. 06-066

item.page.sponsorshipfunderid

item.page.sponsorshipfundingagency

item.page.sponsorshipgrant

Previously Published Citation

Suggested citation

Wittman, Jacob T; Aukema, Brian H; Duan, Jian J; Venette, Robert C. (2021). Data and code for forecasting overwintering mortality of Spathius galinae in North America. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/rhzw-dk37.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.