Evaluating Fall Monarch Butterfly Roadkill Hotspot Incidence and Potential Roadkill Mitigation

Tracy, James; Birt, Andrew; McFalls, Jett; Prozzi, Jolanda; Coulson, Robert K.

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Evaluating Fall Monarch Butterfly Roadkill Hotspot Incidence and Potential Roadkill Mitigation

2022-03-01
By Tracy, James ; Birt, Andrew ; McFalls, Jett

File Language:

English

[PDF - 88.11 MB]

Details

Creators:

Tracy, James ; Birt, Andrew ; McFalls, Jett ; Prozzi, Jolanda ; Coulson, Robert K.
Corporate Creators:

Texas A&M University. Texas Agrilife Research ; Texas A&M Transportation Institute
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/TX-22/0-7022-R1
Resource Type:

Tech Report
Geographical Coverage:

Texas;United States
Edition:

Technical Report: August 2019–August 2021
Corporate Publisher:

Texas Department of Transportation. Research and Technology Implementation Office
Abstract:

Roadkill of monarch butterflies and other arthropods and roadside nectar plants were recoded across Texas in 100 m transects in the fall and spring from fall 2019 to spring 2021. Texas fall monarch roadkill data from this and previous studies was used to extrapolate roadkill across the state, identify monarch roadkill hotspots, and develop MaxEnt monarch roadkill niche models. Monarch roadkill in Texas was estimated at 1-3 million per year in 2016, 2018, and 2020, representing about 2.5% of the monarch overwintering population. Fall monarch roadkill in Texas hotspots reached 136 per 100 m. Hotspots were concentrated along washes of IH-10 between Sonora and Sheffield, and along coastal causeways from Point Comfort to Corpus Christi.
Format:

PDF
Funding:

Project 0-7022
Download URL:

https://rosap.ntl.bts.gov/view/dot/72729/dot_72729_DS1.pdf
File Type:

[PDF - 88.11 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:359f419d72eb9c0c5afe0709be610f90cf301a830d43161ca425f02fac9c0bfd2111c7be2dbd1ddcc4d308fe6434a93009530c21dbf173f2de9a9472baf3f7bc

File Language:

English

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