08-04-25 - City Council Work Session Agenda

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Monarch Butterfly: The monarch butterfly (Danaus plexippus) is designated as a proposed threatened species by the USFWS in 2024 and is documented within Anoka County. According to the USFWS, there are many potential reasons for the butterfly's decline, including habitat loss at breeding and overwintering sites, disease, pesticides, logging at overwintering sites, and climate change. Potential suitable habitat for the Monarch Butterfly may be located in the unmanicured portions of the study area. Rusty Patched Bumble Bee: The rusty patched bumble bee (Bombus affinis) was designated as a federal endangered species by the USFWS in February 2017 and is documented within Anoka County. According to the USFWS, habitat for this species includes grasslands with flowering plants from April through October, underground and abandoned rodent cavities or clumps of grasses above ground as nesting sites, and undisturbed soil for hibernating queens to overwinter. The majority of the study area is located within a low potential zone for the Rusty Patched Bumble Bee and a section of the southwest corner is located within a high potential zone.21 Potential suitable habitat for the rusty patched bumble bee may be located in the unmanicured portions of the study area. Whooping Crane The whooping crane (Grus Americana) is designated as an experimental population, non -essential species by the USFWS in Minnesota in 2001 and is documented in Anoka County. Non -essential experimental populations are treated as threatened species on national wildlife refuges and national park lands, and as a proposed species on private land. The preferred habitat for the species includes shallow marshes and adjacent, open grasslands. Potential suitable habitat for the whooping crane may be located within the study area due to the presence of mapped NWI wetlands, NHD waterbodies, and Public Water Wetlands within the study area along with the presence of adjacent unmanicured areas present throughout the study area. Western Regal Fritillary: The western regal fritillary (Speyeria idalia) was designated as proposed threatened by the USFWS in 2024 and is documented in Anoka County. The western regal fritillary is most often found in native prairie habitat regions, specifically in prairies that contain violets (Viola sp). Larval development may occur in upland prairie, and larvae feed exclusively on violets. The adult western regal fritillary feeds on a variety of floral nectar. Potential suitable habitat for the western regal fritillary may be located in the unmanicured portions of the study area. Salamander Mussel: The salamander mussel (Simpsonaias ambiguea) was designated as proposed threatened 2023. Before the species was federally listed in 2023, it was listed as a threatened species in Minnesota in 1996. The salamander mussel is a small, thin -shelled mussel that inhabits swift - flowing rivers and streams with areas of shelter under rocks or in crevices. rivers, streams, and in some cases lakes with natural flow regimes. Seasonal low flow is expected in some systems and can be tolerated by salamander mussel, though periodic drying or intermittent flow in river habitats generally do not support mussels. No suitable habitat for the salamander mussel was identified within the study area due to lack of identified deep water flowing streams. Reviewed NWI riverine and NHD flowline features were considered intermittent in nature and therefore unsuitable for the salamander mussel. 21 Rusty Patched Bumble Bee Map. Available at https://www.fws.gov/m idwest/endangered/insects/rpbb/rpbbmap. html Lino Lakes Main Street - AUAR 57 July 2025 Page 65 of 617