Resource Heterogeneity Relationship with Understory Vegetation in Post-fire Xeric Jack Pine Forests

Ecosystems ◽  
2018 ◽  
Vol 22 (2) ◽  
pp. 401-415 ◽  
Author(s):  
Sanatan Das Gupta ◽  
Bradley D. Pinno ◽  
Ruth C. Errington
2012 ◽  
Vol 281 ◽  
pp. 152-162 ◽  
Author(s):  
Weifeng Wang ◽  
Changhui Peng ◽  
Daniel D. Kneeshaw ◽  
Guy R. Larocque ◽  
Xinzhang Song ◽  
...  

1970 ◽  
Vol 46 (2) ◽  
pp. 126-133 ◽  
Author(s):  
J. M. McLeod

Neodiprion swainei, a defoliating sawfly specific to jack pine, has destroyed thousands of acres of commercially important jack-pine forests in recent years. This sawfly can kill trees within 4 years of the start of a population increase. Outbreaks are usually found in foci in poorer jack-pine sites on outwash plains. Tree mortality occurs after complete defoliation of the previous years' foliage, combined with severe defoliation of the current year's foliage. Tree mortality starts in the first year after particularly severe defoliation and may be cumulative to 5 years; thus, detection of the insect in a stand should warrant increased watchfulness.Outbreaks may follow at intervals of about 8 years. Hazard areas for Quebec and Ontario are defined.


2019 ◽  
Vol 34 (4) ◽  
pp. 927-940 ◽  
Author(s):  
Mahtab Nazarbakhsh ◽  
Andrew M. Ireson ◽  
Alan G. Barr

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