Dispersal and germination of big and small nuts of Quercus serrata in a subtropical broad-leaved evergreen forest

Xiao, Zhishu; Zhang, Zhibin; Wang, Yushan

doi:10.1016/j.foreco.2004.02.041

Cited by 109 publications

(110 citation statements)

References 42 publications

(56 reference statements)

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“…Other factors such as shading by forest floor vegetation, soil pathogens and root competition within the soil were also reduced on CWD (Cheng & Igarashi 1987;Harmon & Franklin 1989;Coomes & Grub 2000). In the present study, seedlings frequently recorded on pine logs or widely recorded more than five sites were all small-seeded species except for Qurecus serrata (dry weight: 1460 mg, Xiao et al 2004 Takita et al 1998), Swida controversa (44.3-50.3 mg, Takita et al 1998Otani 2002). Despite the differences in latitude, climate and log diameter, decay type of pine logs was the single significant factor affecting seedling colonization of P. densiflora and R. trichocarpa on the logs.…”

Section: Discussionmentioning

confidence: 44%

Seedling regeneration on decayed pine logs after the deforestation events caused by pine wilt disease

Fukasawa

2016

Ann. For. Res.

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Fukasawa Y., 2016. Seedling regeneration on decayed pine logs after the deforestation events caused by pine wilt disease. Ann. For. Abstract. Coarse woody debris (CWD) forms an important habitat suitable for tree seedling establishment, and the CWD decay process influences tree seedling community. In Japan, a severe dieback of Pinus densiflora Sieb. & Zucc. caused by pine wilt disease (PWD) damaged huge areas of pine stands but creates huge mass of pine CWD. It is important to know the factors influencing seedling colonization on pine CWD and their variations among geographical gradient in Japan to expect forest regeneration in post-PWD stands. I conducted field surveys on the effects of latitude, climates, light condition, decay type of pine logs, and log diameter on tree seedling colonization at ten geographically distinct sites in Japan. In total, 59 tree taxa were recorded as seedlings on pine logs. Among them, 13 species were recorded from more than five sites as adult trees or seedlings and were used for the analyses. A generalized linear model showed that seedling colonization of Pinus densiflora was negatively associated with brown rot in sapwood, while that of Rhus trichocarpa was positively associated with brown rot in heartwood. Regeneration of Ilex macropoda had no relationships with wood decay type but negatively associated with latitude and MAT, while positively with log diameter. These results suggested that wood decay type is a strong determinant of seedling establishment for certain tree species, even at a wide geographical scale; however, the effect is tree species specific.

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Section: Discussionmentioning

confidence: 44%

Seedling regeneration on decayed pine logs after the deforestation events caused by pine wilt disease

Fukasawa

2016

Ann. For. Res.

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“…Compared to directly placing the seeds on the forest floor surface, burying seeds can slow removal rates, provide a better micro-environment for germination, and increase seedling survival and establishment rates [38][39][40][41]. In our first seed concealment trial, most of the seeds remained under the soil and had a 14.4% seedling establishment rate.…”

Section: Preventing Seed Predationmentioning

confidence: 99%

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Lin

et al. 2018

Forests

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Abstract:To facilitate the reintroduction of five native late-successional Taiwanese Fagaceae species into Japanese cedar (Cryptomeria japonica (D.) Don) plantations, we experimented with methods to alleviate their establishment limitations. We tested different combinations of tree species, seedling development stages, and site preparation techniques. First, we directly sowed both fresh and germinated acorns under both closed and opened (thinned) canopies. Both fresh and germinated acorns survived only six months at most. Wildlife consumption was the most critical factor hindering their survival. We subsequently experimented with different methods for increasing establishment rates, such as thinning in combination with understory control, applying chemical animal repellents to seeds, using physical barriers against seed predators, and using seedlings of different ages. Among the methods experimented, none was effective. The effects of silvicultural treatments to deter seed consumption lasted only the first few weeks after sowing, whereas the effects of physical barriers were inconsistent. We also tested planting 3-month and 1-year-old seedlings. Seedling survival after 9 months was about 20% on average for 3-month-old seedlings but reached 80% for 1-year-old seedlings. Our results suggest that planting seedlings older than six months or establishing physical obstacles to prevent seed predation will be the most effective strategies to reintroduce late-successional hardwood Fagaceae species into Japanese cedar plantations.

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“…Small rodents, like voles or mice (Clethrionomys sp., Microtus sp., Apodemus sp. ), generally disperse seeds less than 30 m (Cain et al 1998;Xiao et al 2004), and squirrels (Sciurus sp.) a little farther.…”

Section: Zoochorymentioning

confidence: 99%

Seed dispersal distances: a typology based on dispersal modes and plant traits

2007

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Vittoz P. and Engler R. 2007. Seed dispersal distances: a typology based on dispersal modes and plant traits. Bot. Helv. 117: 109 -124.The ability of plants to disperse seeds may be critical for their survival under the current constraints of landscape fragmentation and climate change. Seed dispersal distance would therefore be an important variable to include in species distribution models. Unfortunately, data on dispersal distances are scarce, and seed dispersal models only exist for some species with particular dispersal modes. To overcome this lack of knowledge, we propose a simple approach to estimate seed dispersal distances for a whole regional flora. We reviewed literature about seed dispersal in temperate regions and compiled data for dispersal distances together with information about the dispersal mode and plant traits. Based on this information, we identified seven "dispersal types" with similar dispersal distances. For each type, upper limits for the distance within which 50 % and 99 % of a species seeds will disperse were estimated with the 80 th percentile of the available values. These distances varied 5000-fold among the seven dispersal types, but generally less than 50-fold within the types. Thus, our dispersal types represented a large part of the variation in observed dispersal distances. The attribution of a dispersal type to a particular species only requires information that is already available in databases for most Central European species, i.e. dispersal vector (e.g. wind, animals), the precise mode of dispersal (e.g. dyszoochory, epizoochory), and species traits influencing the efficiency of dispersal (e.g. plant height, typical habitats). This typology could be extended to other regions and will make it possible to include seed dispersal in species distribution models.

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Dispersal and germination of big and small nuts of Quercus serrata in a subtropical broad-leaved evergreen forest

Cited by 109 publications

References 42 publications

Seedling regeneration on decayed pine logs after the deforestation events caused by pine wilt disease

Seedling regeneration on decayed pine logs after the deforestation events caused by pine wilt disease

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Seed dispersal distances: a typology based on dispersal modes and plant traits

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