Results 271 to 280 of about 285,672 (307)

Do Invasive Trees have a Hydraulic Advantage over Native Trees?

Biological Invasions, 2006
The hypothesis was tested that invasive trees have hydraulic traits that contribute to their invasive nature. Five pairs of co-occurring invasive and native trees, in mesic habitats, were selected: (1) Tamarix ramosissima and Salix amygdaloides; (2) Robinia pseudoacacia and Alnus rhombifolia (3) Schinus terebinthifolius and Myrica cerifera; (4 ...
R B Pratt, R A Black
openaire   +1 more source

Forestry Trees as Invasive Aliens

Conservation Biology, 1998
Some alien tree species used in commercial forestry and agroforestry cause major problems as invaders of natural and seminatural ecosystems. The magnitude of the problem has increased significantly over the past few decades, with a rapid increase in afforestation and changes in land use.
openaire   +1 more source

Invasion by woody shrubs and trees

2014
The invasion of many habitats by exotic shrubs and trees has been an important factor causing changes in Australian native vegetation through declines in species richness, changes to community composition and reducing ecosystem function (Lindsay and French 2004; Gosper eta!. 2006; Mason and French 2007; Gooden et at. 2009).
French, Kris, Gooden, Ben, Mason, Tanya
openaire   +1 more source

Modelling invasibility in endogenously oscillating tree populations: timing of invasion matters

Biological Invasions, 2009
The timing of introduction of a new species into an ecosystem can be critical in determining the invasibility (i.e. the sensitivity to invasion) of a resident population. Here, we use an individual-based model to test how (1) the type of competition (symmetric versus asymmetric) and (2) seed masting influence the success of invasion by producing ...
Caplat, Paul, Anand, Madhur, Bauch, Chris   +2 more
openaire   +2 more sources

Invasive Shrubs and Forest Tree Regeneration

Journal of Sustainable Forestry, 2009
Invasive shrubs are having important effects on forests in the United States. Over 100 species were found that have actual or potential effects on forest structure and function. The number of invasive shrub species in each state is correlated with both latitude and state population.
openaire   +1 more source

Dominant forest tree mycorrhizal type mediates understory plant invasions

Ecology Letters, 2017
AbstractForest mycorrhizal type mediates nutrient dynamics, which in turn can influence forest community structure and processes. Using forest inventory data, we explored how dominant forest tree mycorrhizal type affects understory plant invasions with consideration of forest structure and soil properties.
Insu, Jo, Kevin M, Potter, Grant M, Domke, Songlin, Fei   +3 more
openaire   +2 more sources

Using Non-Invasive Techniques to Study Tree Kangaroos

2021
The last decade saw an increasing demand for the development of non-invasive methods to study animals. Such methods allow low-disturbance and more realistic assessments of species’ distribution, habitat use, activity times, behaviors and responses to landscape and global changes. They can also engage the public, allowing for involvement that results in
Heise-Pavlov, Sigrid, McGreevy, Thomas J., Burchill, Simon   +2 more
openaire   +2 more sources

Tree Invasion of Cinnabar Park in Wyoming

American Midland Naturalist, 1978
A recently published analysis of soil samples from Cinnabar Park in the Medicine Bow Mountains of Wyoming suggested that the meadow is migrating. The age structure and other characteristics of the adjacent forest vegetation evaluated in the present study support the view that one side of the park has been invaded by trees over the last century, but ...
openaire   +1 more source

A non-invasive method for evaluating trees

IEE Seminar on Time-Scale and Time-Frequency Analysis and Applications, 2000
Recently high winds raged across central Europe felling trees with the inevitably consequence that some of the trees damaged property and in a number of cases caused personal injury or the tragic loss of life. The risk posed to property and life by wind-blow damage to a tree is assessed by a number of factors with the principal determinants being the ...
openaire   +1 more source

Tree Invasion of Montane Meadows in Oregon

American Midland Naturalist, 1981
Mesic montane meadows in the Cascade Mountains of central and southern Oregon have been invaded recently by trees from the adjacent forests. Cessation of sheep grazing coincides with the initiation of the tree invasions, but the absence of frequent fires and cool moist weather both may have contributed to the conditions which favored the unstable ...
openaire   +1 more source