Succession and dynamics of gorse (<i>Ulex europaeus</i>L.) communities in the dunedin ecological district South Island, New Zealand

Lee, W. G.; Allen, R. B.; Johnson, Peter N.

doi:10.1080/0028825x.1986.10412678

Cited by 59 publications

(58 citation statements)

References 3 publications

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“…This has resulted in recent publication s on the ecology of various species (e.g., Williams 1981;Yin et al 1984; Lee et al 1986, Williams & Buxton 1986). This study was undertaken to examine the soil seed banks of various secondary communities to better understand their role in potential vegetation change, as advocated by Timmins & Williams (1987).…”

Section: Introductionmentioning

confidence: 99%

Soil seed banks of secondary vegetation on the Port Hills and Banks Peninsula, Canterbury, New Zealand, and their role in succession

Partridge¹

1989

New Zealand Journal of Botany

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Soil seed banks at 21 sites covered with poor quality pasture, bracken femland, scrubland of broom or gorse, and various forest types, were examined by germinating seed in soil samples. At most sites the composition of upper and lower soil layers was similar. Persistent, deeply buried seed banks of Cytisus scoparius, Ulex europaeus, and more rarely Sophora microphylla, were discovered at seven sites, four of which lacked that particular species in the above-ground vegetation, and are thus considered to be of a former vegetation type. Forest sites tended to have more seeds and more species represented in the soil seed bank. Although an average of only 35% of the species in the seed bank were represented above ground at the sampling point, this rose to 60% within 5 m, and 72% within 10 m of that point. Those species further away were mostly widespread pasture weeds, even within forest sites, and are interpreted as being recently dispersed and transient. Large quantities of Juncus spp. in some sites are believed to be transported by water movement through the soil. Some species, including certain site dominants, were poorly or never represented in the soil seed bank. It is considered that the seed bank has an important role in establishing the initial floristic composition following disturbance. However, differential seedling survival, resprouting, and competition probably help in maintaining the predisturbance vegetation at non-forest sites. Where forest is disturbed, especially by burning, there is the potential for a completely different vegetation to develop from the seed bank.

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Section: Introductionmentioning

confidence: 99%

Soil seed banks of secondary vegetation on the Port Hills and Banks Peninsula, Canterbury, New Zealand, and their role in succession

Partridge¹

1989

New Zealand Journal of Botany

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“…A total of 124 gorse stands was examined in the Dunedin area (Lee et al 1986). The stands were selected to represent the full environmental range of gorse in the area and to include pioneer through to senescent stands.…”

Section: Methodsmentioning

confidence: 99%

The -3/2 law applied to some gorse communities, with consideration of line fitting

Wilson

Lee

1988

New Zealand Journal of Botany

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A "self-thinning" line is fitted to size/ density data from gorse (Ulex europaeus L.) communities around Dunedin, New Zealand. Three methods of line fitting were triedwunweighted least squares, weighted least squares, and weighted least absolute deviations regressions; they yielded similar results. The slope of the fitted line depends on whether other species are included, and whether dead material is excluded. If both are done, the fitted slope is close to the theoretical-3/2 (-1.5).

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“…Ulex europaeus threatens biodiversity of native floras because it establishes large, dense thickets, which create conditions inhibitory to growth of other plants (Grubb et al 1969;Lee et al 1986). Many rare plant species occur on sites that are favoured by gorse on the west coast of British Columbia.…”

Section: Economic Importance (A)mentioning

confidence: 99%

“…In wetter areas U. europaeus may be seen as a nurse plant in forest regeneration (Hackwell 1980). After 25-30 yr of site domination by gorse, other species may be able to establish as the gorse declines, although gorse may be too flammable and too restrictive of native vegetation to serve in such a role (Lee et al 1986). Where it is native Europe, U. europaeus is not considered a noxious weed but is valued as a wild shrub and as habitat for birds, reptiles or invertebrates (Tubbs 1974;Sandrey 1987;Westerhoff and Tubbs 1991;Catchpole and Phillips 1992).…”

Section: Economic Importance (A)mentioning

confidence: 99%

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The biology of Canadian weeds. 112. Ulex europaeus L.

Clements¹,

Peterson²,

Prasad³

2001

Can. J. Plant Sci.

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R. 2001. The biology of Canadian weeds. 112. Ulex europaeus L. Can. J. Plant Sci. 81: 325-337. Gorse (Ulex europaeus L.) is a leguminous shrub native to western Europe and North Africa. During the past century it has greatly expanded its adventive range in Australia, New Zealand, Chile and Europe, and along the Pacific and Atlantic coasts of North America. In Canada, it is found in British Columbia (Vancouver, Vancouver Island, the Gulf Islands and Queen Charlotte Islands) where it is classed as a noxious weed. Gorse is also found from Virginia to Massachusetts on the east coast of North America. The shrub rapidly invades dry and disturbed areas, forming dense thickets that can suppress and inhibit native vegetation, including economically important conifer seedlings. It can occupy the same habitats as Scotch broom [Cytisus scoparius (L.) Link] but usually occurs on drier sites. Both of these legumes threaten native plant communities but U. europaeus persists longer and possesses conspicuous spines. Invasive characteristics of gorse include its evergreen habit, prolific seed production, longevity of seeds in the soil and nitrogen fixation. Human activities such as agriculture and construction of logging roads have accelerated the spread of gorse in British Columbia, but there is still an historic opportunity to restrict the population expansion that this species has exhibited in many other countries. Various methods of control (chemical, manual, biological and integrated) are evaluated. , mais il préfère habituellement des endroits plus secs. Ces deux légumineuses menacent les peuplements d'espèces indigènes, quoique la première persiste plus longtemps et présente des épines très évidentes. Parmi les caractéristiques qui font de l'ajonc d'Europe une plante envahissante, mentionnons un port semblable à celui des conifères, une production abondante de semences, la longévité des graines dans le sol et la capacité de fixer l'azote. Les activités humaines comme l'agriculture et la construction de chemins d'exploitation ont accéléré la propagation de l'ajonc d'Europe en Colombie-Britannique, mais on pourrait encore freiner son expansion, ce qui n'est plus le cas dans d'autres pays. Suit une évaluation de diverses méthodes de lutte (chimique, manuelle, biologique et intégrée).

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Succession and dynamics of gorse (Ulex europaeusL.) communities in the dunedin ecological district South Island, New Zealand

Cited by 59 publications

References 3 publications

Soil seed banks of secondary vegetation on the Port Hills and Banks Peninsula, Canterbury, New Zealand, and their role in succession

Soil seed banks of secondary vegetation on the Port Hills and Banks Peninsula, Canterbury, New Zealand, and their role in succession

The -3/2 law applied to some gorse communities, with consideration of line fitting

The biology of Canadian weeds. 112. Ulex europaeus L.

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