Stand dynamics of an insular population of an invasive tree, Acer platanoides

Webster, Christopher R.; Nelson, Kathryn; Wangen, Steven R.

doi:10.1016/j.foreco.2004.11.017

Cited by 39 publications

(43 citation statements)

References 52 publications

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“…A maioria das plantas lenhosas invasoras foi introduzida inicialmente como ornamental (Webster et al 2005). Segundo Ziller (2001), o potencial dessas espécies exóticas de alterar ecossistemas é enorme.…”

Section: Materiais E Métodosunclassified

Chuva de sementes e regeneração natural sob três espécies arbóreas em uma floresta em processo de restauração

Vieira¹,

Gandolfi²

2006

Rev. bras. Bot.

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-(Seed rain and natural regeneration under three woody species in a forest in process of restoration). The present study describes the composition of the natural regeneration and seed rain under three early successional tree species -Centrolobium tomentosum Guill. ex Benth. (Fabaceae), Cordia myxa L. (Boraginaceae) and Melia azedarach L. (Meliaceae) in a 15 year-old mixed plantation. Fifteen individuals of each species were selected, and under each crown two seed traps (1 m 2 each; total of 90 seed traps) were set, they were sampled monthly for one year. The natural regeneration was evaluated in circular plots (17.6 m 2 ) established under the projection of the crowns, where all individuals of woody species between 0.3 m and 2.0 m in height were counted and identified. The seed rain had higher mean density under M. azedarach and higher richness under C. myxa. Species diversity of natural regeneration was higher under M. azedarach and individuals were taller under C. myxa. Most of the individuals and species sampled were from early successional species, mainly exotic species. It is discussed the development of microsites and their influence on the community structure and composition.Key words -canopy, forest restoration, natural regeneration, seed rain RESUMO -(Chuva de sementes e regeneração natural sob três espécies arbóreas em uma floresta em processo de restauração). O presente estudo teve como objetivos caracterizar a composição da regeneração natural e da chuva de sementes presentes sob a copa de três espécies de início de sucessão -Centrolobium tomentosum Guill. ex Benth. ) sob as copas das árvores, onde foram amostrados os indivíduos arbustivo-arbóreos de 0,3 a 2,0 m de altura. A chuva de sementes sob M. azedarach apresentou maior densidade média e sob C. myxa maior riqueza. Quanto à regeneração natural, as comunidades diferenciaram-se em relação à diversidade de espécies (maior sob M. azedarach) e à estrutura (indivíduos maiores sob C. myxa) entre as espécies do dossel. A maioria dos indivíduos e espécies amostradas pertence aos estádios iniciais da sucessão e muitas, dentre as mais abundantes, são exóticas. Discute-se a formação de nichos de regeneração sob elas e a influência dessas na estrutura e composição dessas comunidades.Palavras-chave -chuva de sementes, dossel florestal, regeneração natural, restauração florestal

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Section: Materiais E Métodosunclassified

Chuva de sementes e regeneração natural sob três espécies arbóreas em uma floresta em processo de restauração

Vieira¹,

Gandolfi²

2006

Rev. bras. Bot.

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“…It has been widely planted, in part, to replace Ulmus americana L. (American elm) decimated by Dutch elm disease [10]. While perturbations, such as the creation of edges, roads or disturbed soils, may favour A. platanoides establishment [11][12][13][14][15][16], its shade tolerance, abundant production of wind-dispersed seeds, and ability to establish very dense seedling banks allow this species to invade even relatively undisturbed, closed-canopy forests [15,[17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, A. saccharum is ecologically very similar to A. platanoides. Because A. platanoides can not only dominate the understory, but also reaches the canopy at least a decade before A. saccharum [14], there are concerns that the invader may be displacing its native congener [14,17,19,23].…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Invasive Acer platanoides and Native A. saccharum First-Year Seedlings: Growth, Biomass Distribution and the Influence of Ecological Factors in a Forest Understory

Lapointe

Brisson

2012

Forests

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Abstract:Invasive shade tolerant species can have profound and long-lasting detrimental effects even on previously undisturbed forests. In North American forests, the invasive Acer platanoides is capable of dominating the understory where it could displace the native Acer saccharum. To understand the relative importance of various ecological factors in a forest understory on their establishment, we transplanted A. platanoides and A. saccharum seedlings in an urban sugar maple forest understory and their growth and survival were compared over a growing season. Seedlings did not differ in height, but biomass growth and assimilation rates were twice as high for the invasive species. Ecological variables accounted for only 23-24% of variation in growth. Seedlings of A. platanoides appeared to capture light more efficiently, with over 150% greater foliage biomass and surface area.A. saccharum seedlings were more negatively affected by herbivory. The more robust A. platanoides seedlings presented characteristics that could allow them to better grow and survive in shaded understories than their native congeners.

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“…This is an effective strategy for the exclusion of interspecific competitors through site occupancy, which has been previously described in long-lived woody invasive plants species (i.e., Knapp and Canham 2000;Marco and Páez 2000;Greenberg et al 2001;Marco et al 2002;Lee et al 2004;Webster et al 2005;SebertCuvillier et al 2007;Vanhellemont et al 2009) These dense monospecific patches have an important impact on the receptor ecosystems, as other species are completely excluded from large areas.…”

Section: Determinants Of Establishment Of K Daigremontianamentioning

confidence: 87%

Plantlet recruitment is the key demographic transition in invasion byKalanchoe daigremontiana

et al. 2011

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Stand dynamics of an insular population of an invasive tree, Acer platanoides

Cited by 39 publications

References 52 publications

Chuva de sementes e regeneração natural sob três espécies arbóreas em uma floresta em processo de restauração

Chuva de sementes e regeneração natural sob três espécies arbóreas em uma floresta em processo de restauração

A Comparison of Invasive Acer platanoides and Native A. saccharum First-Year Seedlings: Growth, Biomass Distribution and the Influence of Ecological Factors in a Forest Understory

Plantlet recruitment is the key demographic transition in invasion byKalanchoe daigremontiana

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