Abstract Detail

Ecological Section

Rice, Stanley [1].

Earlier spring budburst in Oklahoma deciduous trees.

Budburst dates of about 400 individuals of twenty-two native tree species in south central Oklahoma show a significant main effect of earlier budburst over the seven year period 2006-2012, consistent with global warming. Each year's data set contained the same individual trees. The tree species also differed significantly from one another in how much earlier their buds opened. Most of the species (such as sycamores, sweetgums, pecans, walnuts, water oaks, chinkapin oaks, shumard oaks, and bois-d'arcs) opened their buds an average of two days earlier each year, while others (such as post oaks, cottonwoods, catalpas, and sugarberries) opened their buds an average of about a day earlier every year. This pattern of earlier budburst in Oklahoma is much greater than the North American average of about one to two days earlier each decade. The nationwide anomalous spring of 2012 represented a continuation of a consistent trend of earlier budburst in Oklahoma. The exceptions were silver maples and elms, both of which have suffered extensively from drought and disease.

Broader Impacts:

1 - SOUTHEASTERN OKLAHOMA STATE UNIVERSITY, 1405 N. FOURTH, BOX 4027, DURANT, OK, 74701-0609, USA

Keywords:
budburst
deciduous trees
phenology
global warming.

Presentation Type: Oral Paper:Papers for Sections
Session: 28
Location: Marlborough B/Riverside Hilton
Date: Tuesday, July 30th, 2013
Time: 10:15 AM
Number: 28001
Abstract ID:79
Candidate for Awards:None