Aspects of the ecology of broom (<i>Cytisus scoparius</i>) in Canterbury, New Zealand

Williams, Peter

doi:10.1080/0028825x.1981.10425187

Cited by 77 publications

(71 citation statements)

References 11 publications

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“…Gorse is evergreen whereas broom is leafless from late summer until early spring (Williams 1981), allowing more light to reach seedlings of later successional species. Moreover, gorse produces a massive amount of litter (Egunjobi 1971) that has a relatively low nitrogen concentration compared with the sparse readily decomposable broom litter (Reid 1973).…”

Section: Discussionmentioning

confidence: 99%

“…This may apply especially to elder, which in Britain (Tansley 1939, Grime 1979) is regarded as a nutrient-demanding calcicole. Furthermore, broom tends to be associated with steeper rocky sites, where the freshly weathering rock should produce more nutrients, especially phosphorus, thereby favouring broom (Williams 1981) and elder (Tansley 1939, Grime 1979, Rackham 1980.…”

Section: Discussionmentioning

confidence: 99%

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Secondary vegetation succession on the Port Hills Banks Peninsula, Canterbury, New Zealand

Williams¹

1983

New Zealand Journal of Botany

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The structure and canopy composition of successional scrub dominated by broom (Cytisus scoparius), elder (Sambucus nigra), gorse (Ulex europaeus) , and mahoe (Melicytus ramiflorus) was measured using a variation of the point-heightintercept method. Stem diameters and age classes of broom and elder populations were recorded. Eight stands in Hoon Hay valley were arranged in order of increasing age which corresponded to a toposequence from dry sites on upper north facing slopes to moist sites on lower south facing slopes. The latest expansion of elder began about 12 years ago when it colonised young broom stands. Broom dies by about 15 years leaving elder, which in tum is invaded by mahoe. Broom and elder are considered desirable species where the aim of vegetation management is to re-establish native forest in this region.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Secondary vegetation succession on the Port Hills Banks Peninsula, Canterbury, New Zealand

Williams¹

1983

New Zealand Journal of Botany

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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%

“…The Port Hills and Banks Peninsula, Canterbury, contain diverse secondary scrub communities, mostly induced by fire (Williams 1983). Repeated firing has been used to maintain pasture on unploughable hill slopes where stock are too few to control scrub by grazing.…”

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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“…La regeneración abundante de T. monspessulana se presenta preferentemente cuando los individuos adultos son removidos por alguna especie de disturbio. Por ejemplo, la abundancia de T. monspessulana en Francia se ha ligado al fuego (Paynter et al 1998) y se ha observado con frecuencia a T. monspessulana como un colonizador de áreas con perturbaciones de suelos frecuentes como dunas, al costado de caminos y pendientes fuertes (Williams 1981, Johnson 1982, Bossard 1991. Por otro lado, Bossard (1991) revela que esa alteración de los suelos incrementa significativamente el establecimiento de las plantas provenientes del banco de semillas en un sitio de California.…”

Section: Discusionunclassified

Banco De Semillas, Regeneracion Y Crecimiento De Teline Monspessulana (L.) K. Koch Despues De Un Incendio Forestal

Garcı́a¹,

Pauchard

Peña³

2007

Gayana Bot.

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RESUMENLas especies de plantas invasoras y el fuego pueden generar retroalimentación positiva, modificando la dinámica del paisaje y los ciclos ecosistémicos. Este trabajo tiene por objetivo estudiar los patrones poblacionales de Teline monspessulana después de un incendio forestal en la zona costera de la Región del Bío-Bío, Chile, dominada por plantaciones forestales de Pinus radiata y Eucalyptus globulus. El estudio se realizó en un sector del Cerro Caracol, adyacente a la ciudad de Concepción, que fue afectado por un incendio en febrero de 2005. El área de estudio fue estratificada en tres sitios, los que representan diferencias en cobertura y pendiente. En cada sitio se establecieron quince parcelas de un metro cuadrado. El banco de semillas de T. monspessulana fue registrado a diferentes profundidades en cada sitio. Durante la primavera de 2005 hasta el otoño de 2006, registros mensuales de la densidad y altura de la regeneración de T. monspessulana fueron compilados para cada parcela. Las semillas de T. monspessulana almacenadas en el banco edáfico alcanzaron un máximo de 3.975 semillas m -2 , registrándose una variación significativa entre los sitios. La regeneración promedio varió entre 12.000 plantas/ha a 2.131.000 plantas/ha dependiendo del sitio. Transcurrido ocho meses desde el inicio de la germinación, la mayor altura promedio de T. monspessulana se registró en el sitio con mayor cobertura arbórea (ca. 70 cm). Acompañando a T. monspessulana regeneraron las especies introducidas Acacia melanoxylon y Rubus ulmifolius. Una vez concluido el periodo estival se aprecia una disminución cercana al 35% en la densidad de T. monspessulana en los tres sitios. Se concluye que el fuego está favoreciendo la permanencia y dominancia de T. monspessulana en zonas de plantaciones forestales con especies exóticas de la Región del Bío-Bío costera de Chile.PALABRAS CLAVES: Retamilla, especies exóticas, invasiones biológicas, feedbacks positivos de fuego, Genista. ABSTRACTInvasive plant species and fire may generate positive feedbacks, modifying landscape dynamics and ecosystem cycles. This study aims to study the population patterns of Teline monspessulana after forest wildfires in the coastal areas of the Bio-Bio Region of Chile, which is dominated by forest plantations of Pinus radiata and Eucalyptus globulus. The study was conducted in Cerro Caracol park, located next to the city of Concepción and burned by a fire in February 2005. The study area was stratified in three sites, representing a range of cover and slope conditions. In each site, fifteen plots of one square meter were established. Seed bank was recorded at different depth in each the sites. During the spring of 2005 and summer to the fall of 2006, monthly records of density and height of T. monspessulana regeneration and other companion species were compiled for each plot. Fire destroyed all shrub and herbaceous vegetation. However, seeds of T. monspessulana in the seed bank reached to 3,975 seeds m -2 , great variation across sites was detected. The aver...

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Aspects of the ecology of broom (Cytisus scoparius) in Canterbury, New Zealand

Cited by 77 publications

References 11 publications

Secondary vegetation succession on the Port Hills Banks Peninsula, Canterbury, New Zealand

Secondary vegetation succession on the Port Hills Banks Peninsula, Canterbury, New Zealand

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

Banco De Semillas, Regeneracion Y Crecimiento De Teline Monspessulana (L.) K. Koch Despues De Un Incendio Forestal

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