Secret Pollinators

Native Bees Have Antifreeze!


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I spent years worrying Montana's brutal winters killed native bees. Then I learned they produce antifreeze proteins. They NEED cold like native seeds need stratification. Mind-blowing science that'll completely change how you think about fall cleanup."

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KEY SOURCES

Diapause & cold hardiness in solitary bees

  • Denlinger, D. L. & Lee, R. E. (2010). Low Temperature Biology of Insects. Cambridge University Press. — foundational reference for cryoprotectant synthesis, supercooling, and freeze avoidance in diapausing insects.
  • Bennett, M. M., Rinehart, J. P., Yocum, G. D., Doetkott, C., & Greenlee, K. J. (2018). Cues for cavity nesting bees and wasps to manage overwintering. Related work: Yocum et al. on Megachile rotundata diapause and thermal regime.
  • Fischman, B. et al. / Frontiers in Bee Science (2024). Diapause, pollen ball incidence, and overwintering energetics in the alfalfa leafcutting bee, Megachile rotundata. DOI: 10.3389/frbee.2024.1454790 — glycogen converted to cryoprotectant molecules; pre-wintering warmth depletes lipid reserves.
  • Sgolastra, F., Bosch, J., Molowny-Horas, R., Maini, S., & Kemp, W. P. (2010). Timing of eclosion affects diapause development, fat body consumption and longevity in Osmia lignaria. Journal of Insect Physiology. DOI: 10.1016/j.jinsphys.2010.06.006 — overwinter energy drain and the cryoprotection trade-off in a mason bee.
  • Christensen, S. M., Srinivas, S. N., McFrederick, Q. S., Danforth, B. N., Buchmann, S. L., & Vannette, R. L. (2024). Symbiotic bacteria and fungi proliferate in diapause and may enhance overwintering survival in a solitary bee. ISME Journal. DOI: 10.1093/ismejo/wrae089 — sugar alcohol composition shifts alongside fungal abundance in Anthophora bomboides; Streptomyces in brood cells suppresses pathogenic fungi.

#SecretPollinators #NativeBees #SaveTheBees #Pollinators #BeeConservation #WildBees #SolitaryBees #PollinatorGarden #PollinatorHabitat #Entomology #ScienceEducation #Conservation #FallGardening #Biomimicry #DidYouKnow #Antifreeze

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Secret PollinatorsBy Kelly Parks