Native or Exotic? Double or Single? Evaluating Plants for Pollinator-friendly Gardens
نویسندگان
چکیده
منابع مشابه
Movement of exotic plants into coastal native forests from gardens in northern New Zealand
The number and abundance of exotic weeds in native forest fragments are known to correlate with the distance to the nearest large town. This is of concern as land near lowland forest is increasingly being subdivided for housing throughout much of New Zealand. We quantified the relationship between settlements and exotic plants for the coastal forests in eastern Northland, New Zealand. Exotic pl...
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Let E n = {[τ ]a = (τ (a1) 1 , . . . , τ (an) n )|τ ∈ Sn, 1 ≤ ai ≤ r} be the set of all signed permutations on the symbols 1, 2, . . . , n with signs 1, 2, . . . , r. We prove, for every 2-letter signed pattern [τ ]a, that the number of [τ ]a-avoiding signed permutations in E n is given by the formula n ∑ j=0 j!(r−1) ( n j 2 . Also we prove that there are only one Wilf class for r = 1, four Wil...
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Enemy release and biotic resistance are competing, but not mutually exclusive, hypotheses addressing the success or failure of non-native plants entering a new region. Enemy release predicts that exotic plants become invasive by escaping their co-adapted herbivores and by being unrecognized or unpalatable to native herbivores that have not been selected to consume them. In contrast, biotic resi...
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How interactions between exotic species affect invasion impact is a fundamental issue on both theoretical and applied grounds. Exotics can facilitate establishment and invasion of other exotics (invasional meltdown) or they can restrict them by re-establishing natural population control (as predicted by the enemyrelease hypothesis). We studied forest invasion on an Argentinean island where 43 s...
متن کاملSingle or double plating for nonunion of the clavicle.
Between January 1982 and January 1999, 684 patients presented with a fracture of the clavicle to the accident and emergency departments of the Tamside and Bury District General Hospitals. Twenty patients (3%) subsequently developed symptomatic nonunion of the clavicle. The original injury resulted from a road traffic accident in 13 patients, from a fall on an outstretched hand in five patients,...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2001
ISSN: 1095-8290,0305-7364
DOI: 10.1006/anbo.2000.1322