Effectiveness Monitoring of CTDOT Conservation Areas: Pollinator Habitat Survey

Legrand, Ana

doi:s://hdl.handle.net/11134/3973070

i

Effectiveness Monitoring of CTDOT Conservation Areas: Pollinator Habitat Survey

2025-05-31
By Legrand, Ana

File Language:

English

Details

Creators:

Legrand, Ana
Corporate Creators:

University of Connecticut. Department of Plant Science & Landscape Architecture
Corporate Contributors:

Connecticut Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Asclepias Incarnata Asclepias Syriaca Danaus Plexippus Density Habitat (Ecology) Milkweed Monarch Butterfly Plant Mix Pollinator Habitat Restoration Ecology Roadside Flora Vegetation
Publication/ Report Number:

CT-2329-F-25-1 ; SPR-2329
DOI:

https://hdl.handle.net/11134/3973070
Resource Type:

Tech Report
Geographical Coverage:

Connecticut ; United States
Edition:

Final Report 3/1/2023 – 6/30/2025
Corporate Publisher:

Connecticut. Department of Transportation
Abstract:

A pollinator habitat survey project was conducted in 2023 and 2024 to determine the effectiveness of CTDOT reduced mowing and late season mowing practices in designated conservation areas. The project evaluated the presence of milkweed resources for monarch butterflies and of nectar resources for pollinators in general. The Candidate Conservation Agreement with Assurances (CCAA) guidelines and habitat thresholds were utilized to evaluate the conservation areas. Over 65% of conservation areas in 2023 and 57% in 2024 met the CCAA milkweed threshold. Common milkweed (Asclepias syriaca L.) and swamp milkweed (A. incarnata L.) were the only milkweed species recorded. The pollinator habitat survey determined that 63% of sample plots met the CCAA nectar plant cover threshold in from May to August 2023. In 2024, 65% of sample plots met the CCAA nectar plant 10% cover threshold.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:752bb56362dddde2535874b035f1b9587e478ef608e2ca2821e06ab2334a568e5c1b12a1939398df18d7016856327c5692b0bc2e7cc44f54e0e8a4392bba0601
Download URL:

https://rosap.ntl.bts.gov/view/dot/86044/dot_86044_DS1.pdf
File Type:

[PDF - 1.11 MB ]

File Language:

English

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