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Abstract Detail

Past Presidents' Symposium: Biodiversity: Past, Present, and Future

Havens, Kayri [1], Vitt, Pati [2].

Plant Conservation in a Changing World.

Faced with a changing climate, plants may respond via plasticity, such as by altering flowering phenology. Over time, plants may either adapt to the new climatic conditions, migrate to regions where climatic conditions are more suitable, or go extinct locally or globally. Phenological shifts are well documented in many plant species, with most of the species studied exhibiting earlier leaf break and flowering in response to warming temperatures. Some studies have suggested that phenology changes in plants are better explained by temperature than in animals, suggesting there may be phenological mismatches between plants and their animal mutualists (pollinators and seed dispersal agents) as the climate warms, thereby limiting reproductive success. During past changes in climate, plant species were able to respond by adaptive evolution and/or shifting latitude or elevation. However, the potential to respond to today’s rapid climate change is limited by the speed of climate change and land use changes that curtail gene flow and migratory routes. Using native plant materials for restoration, and possibly assisted migration implemented in a restoration context, may help maintain species that might otherwise be lost from the landscape. However, continued research is needed to better understand appropriate current and future seed transfer zones. Banking native seed now is necessary to maintain these future options.

Broader Impacts:

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Related Links:
Seeds of Success - US native seed banking program
Chicago Botanic Garden seed bank

1 - Chicago Botanic Garden, CONS SCI DEPT, 1000 Lake Cook Road, Glencoe, IL, 60022, USA
2 - Chicago Botanic Garden, 1000 Lake Cook Road, Glencoe, IL, 60022, USA

global change
seed banking.

Presentation Type: Symposium or Colloquium Presentation
Session: SY12
Location: Grand Ballroom A/Riverside Hilton
Date: Wednesday, July 31st, 2013
Time: 5:15 PM
Number: SY12008
Abstract ID:231
Candidate for Awards:None

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