Landscape-scale assessment of tree crown dieback following extreme drought and heat in a Mediterranean eucalypt forest ecosystem

We examined the abundance of arboreal marsupials in topographic fire refuges after a major fire in a stand-replacing crown-fire forest ecosystem. We surveyed the abundance of arboreal marsupials across 48 sites in rainforest gullies burnt to differing extents by the 2009 fires in the mountain ash (Eucalyptus regnans) forests of the Victorian Central Highlands, Australia. The greater glider (Petauroides volans) was less abundant within the extent of the 2009 fire. The mountain brushtail possum (Trichosurus cunninghami) was more abundant within the extent of the 2009 fire, particularly within unburnt peninsulas protruding into burnt areas from unburnt edges. Our results indicate that fire refuges may facilitate the persistence of some species within extensively burnt landscapes. Additional work should seek to clarify this finding and identify the demographic mechanisms underlying this response.

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A landscape-scale assessment of steppe degradation in the Xilin River Basin, Inner Mongolia, China

Journal of Arid Environments ◽

10.1016/j.jaridenv.2004.01.004 ◽

2004 ◽

Vol 59 (1) ◽

pp. 133-149 ◽

Cited By ~ 181

Author(s):

C Tong ◽

J Wu ◽

S Yong ◽

J Yang ◽

W Yong

Keyword(s):

River Basin ◽

Inner Mongolia ◽

Landscape Scale ◽

Scale Assessment

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A Landscape-scale Assessment of the Nitrogen and Non-Nitrogen Benefits of Pea in a Crop Rotation

Proceedings of the Third International Conference on Precision Agriculture ◽

10.2134/1996.precisionagproc3.c6 ◽

2015 ◽

pp. 55-63

Author(s):

C. Stevenson ◽

C. van Kessel

Keyword(s):

Crop Rotation ◽

Landscape Scale ◽

Scale Assessment

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An Evaluation of Changes in Tree Crown Characteristics to Assess Forest Health in Two Indiana State Parks

Northern Journal of Applied Forestry ◽

10.1093/njaf/21.1.50 ◽

2004 ◽

Vol 21 (1) ◽

pp. 50-55

Author(s):

KaDonna C. Randolph ◽

John W. Moser

Keyword(s):

Health Monitoring ◽

Forest Health ◽

State Parks ◽

Tree Crown ◽

Extreme Stress ◽

Body Of Knowledge ◽

Forest Health Monitoring ◽

Crown Density ◽

Crown Characteristics ◽

Crown Dieback

Abstract An evaluation of tree crown characteristics was conducted by means of a Forest Health Monitoring study in Turkey Run and Shades State Parks, Indiana. Crown dieback, foliage transparency, and crown density were summarized for three consecutive measurement years, and the short-term changes in these characteristics were quantified in an effort to identify potential forest health concerns. In both Shades and Turkey Run State Parks, no significant changes were detected in the levels of crown dieback and crown density. Only for Shades hardwoods, and more specifically hickory trees (Carya spp.), was there an unfavorable change in foliage transparency; however, this change did not appear extraordinary given the Forest Health Monitoring measurement quality objectives. This study demonstrated that given the current body of knowledge about the acceptable levels for the crown characteristics, the majority of trees in Shades and Turkey Run State Parks are not exhibiting responses to extreme stress and should be considered healthy.

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