Changes in size of soil seed bank in Robinia pseudoacacia L. (Leguminosae), an exotic tall tree species in Japan: Impacts of stand growth and apicultural utilization

Masaka, Kazuhiko; Yamada, Kenji; Koyama, Yasuhiro; Satō, Hajime; Kon, Hirokazu; Torita, Hiroyuki

doi:10.1016/j.foreco.2010.05.036

Cited by 13 publications

(6 citation statements)

References 40 publications

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“…However, contrary to our hypothesis, R. pseudoacacia showed the highest reproductive to vegetative mass ratio, which suggests a great potential to colonize new sites, but not so great to compete with other plants. The prioritization to sexual reproduction found in R. pseudoacacia is consistent with reports indicating that vegetative growth notably declines after 10–20 years [71] , while fecundity might not decline before 30–40 years [94] .…”

Section: Discussionsupporting

confidence: 89%

“…nutrients, water and pollinators, which in A. altissima and R. pseudoacacia are mainly honeybees, beetles and other nectar- and pollen-feeding generalist insects [52] , [68] , [91] . In fact, a shortage of pollinators has been found to limit fruit production in many invasive plants, including R. pseudoacacia [92] – [94] . Given that all native trees in the recipient community are wind-pollinated [70] , A. altissima and R. pseudoacacia only have to face competition for pollinators by the sub-dominant undercanopy entomophilous shrubs and vines.…”

Section: Discussionmentioning

confidence: 99%

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Can the Life-History Strategy Explain the Success of the Exotic Trees Ailanthus altissima and Robinia pseudoacacia in Iberian Floodplain Forests?

et al. 2014

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Ailanthus altissima and Robina pseudoacacia are two successful invasive species of floodplains in central Spain. We aim to explain their success as invaders in this habitat by exploring their phenological pattern, vegetative and sexual reproductive growth, and allometric relations, comparing them with those of the dominant native tree Populus alba. During a full annual cycle we follow the timing of vegetative growth, flowering, fruit set, leaf abscission and fruit dispersal. Growth was assessed by harvesting two-year old branches at the peaks of vegetative, flower and fruit production and expressing the mass of current-year leaves, stems, inflorescences and infrutescences per unit of previous-year stem mass. Secondary growth was assessed as the increment of trunk basal area per previous-year basal area. A. altissima and R. pseudoacacia showed reproductive traits (late flowering phenology, insect pollination, late and long fruit set period, larger seeds) different from P. alba and other native trees, which may help them to occupy an empty reproductive niche and benefit from a reduced competition for the resources required by reproductive growth. The larger seeds of the invaders may make them less dependent on gaps for seedling establishment. If so, these invaders may benefit from the reduced gap formation rate of flood-regulated rivers of the study region. The two invasive species showed higher gross production than the native, due to the higher size of pre-existing stems rather than to a faster relative growth rate. The latter was only higher in A. altissima for stems, and in R. pseudoacacia for reproductive organs. A. altissima and R. pseudoacacia showed the lowest and highest reproductive/vegetative mass ratio, respectively. Therefore, A. altissima may outcompete native P. alba trees thanks to a high potential to overtop coexisting plants whereas R. pseudoacacia may do so by means of a higher investment in sexual reproduction.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Can the Life-History Strategy Explain the Success of the Exotic Trees Ailanthus altissima and Robinia pseudoacacia in Iberian Floodplain Forests?

et al. 2014

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“…In Japanese false acacia forests, Masaka et al . () found a positive relationship between the extent of apicultural use of the trees and the soil seed bank; apiculture enhanced pollination and hence seed set, which means that, in naturally established populations, trees can probably be pollinator limited.…”

Section: Floral and Seed Charactersmentioning

confidence: 94%

Biological Flora of the British Isles: Robinia pseudoacacia

et al. 2013

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Summary1. This account presents information on all aspects of the biology of Robinia pseudoacacia L. that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, and history and conservation. 2. Robinia pseudoacacia, false acacia or black locust, is a deciduous, broad-leaved tree native to North America. The medium-sized, fast-growing tree is armed with spines, and extensively suckering. It has become naturalized in grassland, semi-natural woodlands and urban habitats. The tree is common in the south of the British Isles and in many other regions of Europe. 3. Robinia pseudoacacia is a light-demanding pioneer species, which occurs primarily in disturbed sites on fertile to poor soils. The tree does not tolerate wet or compacted soils. In contrast to its native range, where it rapidly colonizes forest gaps and is replaced after 15-30 years by more competitive tree species, populations in the secondary range can persist for a longer time, probably due to release from natural enemies. 4. Robinia pseudoacacia reproduces sexually, and asexually by underground runners. Disturbance favours clonal growth and leads to an increase in the number of ramets. Mechanical stem damage and fires also lead to increased clonal recruitment. 5. The tree benefits from di-nitrogen fixation associated with symbiotic rhizobia in root nodules. Estimated symbiotic nitrogen fixation rates range widely from 23 to 300 kg ha À1 year À1 . The nitrogen becomes available to other plants mainly by the rapid decay of nitrogen-rich leaves. 6. Robinia pseudoacacia is host to a wide range of fungi both in the native and introduced ranges. Megaherbivores are of minor significance in Europe but browsing by ungulates occurs in the native range. Among insects, the North American black locust gall midge (Obolodiplosis robiniae) is specific to Robinia and is spreading rapidly throughout Europe. 7. In parts of Europe, Robinia pseudoacacia is considered an invasive non-indigenous plant and the tree is controlled. Negative impacts include shading and changes of soil conditions as a result of nitrogen fixation.Key-words: climatic limitation, ecophysiology, geographical and altitudinal distribution, germination, invasive, mycorrhiza, nitrogen fixation, parasites and diseases, reproductive biology, soilsFalse acacia, black locust. Fabaceae, tribe Robinieae. Robinia pseudoacacia L. is a deciduous, strongly suckering, broadleaved tree, up to 20 m high but, occasionally taller. Bark *Nomenclature of vascular plants follows Stace (2010) and, for nonBritish species, Flora Europaea.

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“…Though the fecundity of R. pseudoacacia generally declines after about 40-50 years, corresponding to the decrease in tree vigour, the soil seed bank density may continue to increase owing to the considerable accumulation of dormant seeds (MASAKA et al 2010). Robinia seed longevity does not exceed 40 years in general (TOOLE and BROWN 1946), therefore the net seed accumulation rate becomes regressive in the course of time, leading to a curvilinear relationship between seed bank density and basal area of tree (Fig.…”

Section: Discussionmentioning

confidence: 99%

Soil seed bank of the invasive Robinia pseudoacacia in planted Pinus nigra stands

Cseresnyés¹,

Csontos²

2012

Acta Botanica Croatica

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-Pinus nigra and Robinia pseudoacacia are exotic trees used for afforestation in Hungary. Pinus nigra was non-invasive, however R. pseudoacacia escaped from cultivation and invaded several vegetation types including pine plantations. It has recently been planned to cut P. nigra plantations and replace them by native tree stands, especially in nature reserves. The scattered presence of R. pseudoacacia specimens in pine stands might place constraints on planned tree replacement because of their vegetative resprouting and recolonization from an established seed bank. The aim of this study was to investigate the soil seed bank under the canopy of solitary R. pseudoacacia specimens found in P. nigra plantations. Altogether 250 soil samples were collected from the 0-6 and 6-12 cm soil layers under solitary Robinia trees of varying ages (with basal areas between 62.4 and 1089.3 cm 2 ). Seeds were separated by sieving then scarified and germinated. Seed bank density ranged between 640 and 2285 seeds m -2 with an average distribution of 82.7% and 17.3% in the upper and lower soil layer, respectively. Total density of the seed bank and also the seed bank ratio of the lower soil layer increased with tree age. The accumulated seed bank of R. pseudoacacia should be considered in the careful planning of tree replacement operations in Pinus nigra stands.

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Changes in size of soil seed bank in Robinia pseudoacacia L. (Leguminosae), an exotic tall tree species in Japan: Impacts of stand growth and apicultural utilization

Cited by 13 publications

References 40 publications

Can the Life-History Strategy Explain the Success of the Exotic Trees Ailanthus altissima and Robinia pseudoacacia in Iberian Floodplain Forests?

Can the Life-History Strategy Explain the Success of the Exotic Trees Ailanthus altissima and Robinia pseudoacacia in Iberian Floodplain Forests?

Biological Flora of the British Isles: Robinia pseudoacacia

Soil seed bank of the invasive Robinia pseudoacacia in planted Pinus nigra stands

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