Abstract Detail



Biodiversity Informatics & Herbarium Digitization

Unterschuetz , John Alexander [1], Moore, Abigail [2], Messick, Jenna [3].

Measuring Changes in Phenology of Oklahoma Asteraceae Species: Using Herbarium Specimens.

Analyzing shifts in flowering times (phenology) in response to changing climatic conditions is crucial to comprehending and forecasting the impacts of climate change on the world’s plants. Climate and phenology are physiologically linked and changes in the climate have the potential to alter phenological responses. Herbaria contain the physical record of phenology from past seasons and are thus an important source of long-term data. Many scientists have utilized herbarium specimens to study phenology and this strategy has indicated more potential effects of climate change.  We created a novel protocol for scoring the phenotypic phases of Asteraceae heads, which has been difficult due to their complicated anatomy and large numbers of small florets.  We are investigating potential shifts in flowering time for ten species of the Asteraceae in Oklahoma. These species were selected to represent the morphological and phylogenetic diversity of the Asteraceae family in Oklahoma, and our selection was limited to those species represented in the Robert Bebb Herbarium (OKL) with over 100 specimens each. Our dataset includes the efforts of plant collectors from over 100 years. 


1 - University of Oklahoma, Department of Microbiology and Plant Biology, 770 Van Vleet Oval, Room 208, Norman, OK, 73019, USA
2 - University Of Oklahoma, Department Of Microbiology And Plant Biology, 770 Van Vleet Oval, Rm. 208, Norman, OK, 73019, United States
3 - University of Oklahoma, Department of Microbiology and Plant Biology, 770 Van Vleet Oval, Norman, OK, 73019, USA

Keywords:
Herbarium Specimens
phenology
climate change
Asteraceae
Oklahoma.

Presentation Type: Poster This poster will be presented at 6:15 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PBI004
Abstract ID:489
Candidate for Awards:None


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