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Abstract Detail


Ecological Section

Williams, Claire  [1].

Is long-distance (LDD) pine pollen viable?

For over 100 years, biologists have reported that pine pollen can be transported hundreds of kilometers from source but the viability of this pollen has been in question. To address this, pollen viability and other aerobiological properties were experimentally measured in lab, field experiment and landscape settings. Results showed 1) Pinus taeda pollen has a low settling or terminal velocity value of 2.1 cm/s, 2) that daytime pine pollen count from a plantation was sparse but viable, 3) that this was also true for sampling captured at late night hours and 4) long-distance dispersed (LDD) pine pollen moving on micro-transport scales (>30 km) and at meso-transport (>1000 km) scales from source shows uneven viability levels. LDD pine pollen captured more than 500 m above land had very low viability but LDD pine pollen captured more than 1 km from shore had moderate viability although its germination declined with increasing distance from source.


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1 - Silver Springs LLC, 1289 North Fordham Blvd Ste 184, Chapel Hill, NC, 27514, USA

Keywords:
Reproductive biology
long-distance dispersal
Pinus
aerial transport.

Presentation Type: Oral Paper:Papers for BSA Sections
Session: 49
Location: Alpine B/Snowbird Center
Date: Tuesday, July 28th, 2009
Time: 2:45 PM
Number: 49006
Abstract ID:168


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