Soil seed bank compositional change constrains biodiversity in an invaded species-rich woodland

Fisher, Judith; Loneragan, William A.; Dixon, Kingsley W.; Veneklaas, Erik J.

doi:10.1016/j.biocon.2008.10.019

Cited by 66 publications

(92 citation statements)

References 42 publications

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“…This is a result of distances 120 and 180 meters, and for richness. This characteristic corroborates with other studies (Caldato et al 1996, Baider et al 1999, Monaco et al 2003, Melo et al 2007, Fisher et al 2009, Soares & Almeida 2011, Silva et al 2012) that affi rm that the soil seed bank contains pioneer and rapid developing species in most of the evaluated samples, regardless the location in which it was extracted, providing a primary stage of succession.…”

Section: Discussionsupporting

confidence: 92%

“…This is directly refl ected in the combination of seeds available in the soil. In fact, there is a rich selection of pioneer species in the soil seed bank that exhibit rapid development (Caldato et al 1996, Baider et al 1999, Monaco et al 2003, Fisher et al 2009, Soares & Almeida 2011, favoring quick regeneration in situations in which forest recovery is necessary (Vespa et al 2014) after a stochastic natural or manmade event.…”

Section: Introductionmentioning

confidence: 99%

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Inﬂuence of the Edge Effect on a Soil Seed Bank of a Natural Fragment in the Atlantic Forest

Machado¹,

França²,

Santos³

et al. 2017

Iheringia Ser Bot

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-The edge eff ect is defi ned as the change of biotic and abiotic characteristics in the fi rst meters of a forest fragment from the edge towards its interior. In fragments formed by human activities, this change generates increased richness and abundance, as well as changes in the structure of the forest species of soil seed bank in the border region. This study demonstrates that in natural fragments of cloud forests, the abundance and richness positively infl uence the linear relation from the edge to interior, mainly by distances of 120 and 180 meters from the edge. This eff ect can be a result of new plant growth, or 'pioneer' occupation in gaps in the forests generated by large fallen trees.Keywords: conservation, edge relationship, protected area RESUMO -Infl uência do efeito de borda sob o banco de sementes do solo de fl oresta natural na Mata Atlântica. O efeito de borda é a mudança de características bióticas e abióticas nos primeiros metros de um fragmento fl orestal da borda para seu interior. Em fragmentos formados pelas atividades humanas essa mudança gera aumento da riqueza e abundância, bem como a mudança da estrutura do banco de sementes do solo na região de borda. Contudo, o presente estudo demonstra que em fragmentos naturais, como as fl orestas nebulares, a abundância e a riqueza infl uenciam positivamente a relação linear da borda para o interior, principalmente pelas distancias de 120 e 180 metros da borda. Esse efeito pode ser resultado da ocupação de pioneiras em lacunas deixadas por grandes árvores caídas no meio do fragmento.Palavras-Chave: área protegida, conservação, relação borda

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Inﬂuence of the Edge Effect on a Soil Seed Bank of a Natural Fragment in the Atlantic Forest

Machado¹,

França²,

Santos³

et al. 2017

Iheringia Ser Bot

View full text Add to dashboard Cite

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“…Soil seed bank is defined as the viable seeds that exist on the soil surface or buried in soil [11], which represents the memories of the last plant community and the development of a future plant community in the surrounding area [12]. It is generally considered that the soil seed bank is the seed resources of native vascular plants, and would supply most seedlings for vegetation regeneration [13].…”

Section: Introductionmentioning

confidence: 99%

Responses of Soil Seed Bank and Vegetation to the Increasing Intensity of Human Disturbance in a Semi-Arid Region of Northern China

Xiao

Wang

et al. 2017

Sustainability

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Abstract:To provide more insights into the responses of the soil seed bank and vegetation to human disturbance intensity, we selected four land use types, including: native grassland (no human disturbance), abandoned artificial grassland (light human disturbance), artificial grassland (moderate human disturbance), and farmland (severe human disturbance) in a semi-arid climate of northern China. The species composition and density of the soil seed bank were measured, as well as the species composition and amount of vegetation. The native grassland had a significantly higher soil seed density and species richness than the other land use types. Moreover, the common species both in the soil seed bank and vegetation between the native grassland and other land use types gradually decreased as disturbance intensity increased. The abandoned artificial grassland and artificial grassland still had abundant soil seed banks according to their seed density (≥28.2% of the native grassland) and species richness (≥70.0% of the native grassland) to restore the vegetation. Conversely, it was hard to restore the vegetation on the farmland due to its low soil seed density (10.0% of the native grassland) and species richness (40.0% of the native grassland). In conclusion, human disturbance would generate significant negative effects on the soil seed bank in desertified regions in a semi-arid climate; however, the soil seed bank in land use types with light/moderate disturbance are more adapted to vegetation restoration compared with land use types with severe disturbance in a semi-arid region.

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“…However, the studies also revealed that a large seed bank is not essential always for successful invasion (Gioria and Pysek, 2016). Low contribution of seeds of invasive species in heavily invaded communities has been recorded in vegetation where the invader has been present for a long period of time (Shen et al, 2006;Fisher et al, 2009;Gioria and Osborne, 2010).…”

Section: Discussionmentioning

confidence: 99%

Austroeupatorium inulifolium invasion alters soil seed bank in anthropogenic grassland: a case study from Sri Lanka

2017

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Abstract:Austroeupatorium inulifolium is aggressively invading many land use types in the Knuckles Conservation Area (KCA) in Sri Lanka. The Cymbopogon nardus dominated grasslands, often demarcated by native forests, are the most vulnerable. The present study quantified the soil seed bank and the standing vegetation of these highly invaded grasslands. Forest-grassland edge (FGE) has been identified as the starting point for this invasion, and therefore sampling was carried out twice at different distances from the FGE towards the grassland (0, 10 and 30 m). The soil seed bank showed high seasonality with higher abundance and richness in the wet season than in the dry season. Interestingly, the dry season soil seed bank was dominated by native species (78%) while the wet season seed bank was dominated marginally by exotics (52%), with the highest contribution from Austroeupatorium. The scarcity of tree seedlings was noticed during the study. Austroeupatorium and tree seeds showed decreasing trends from the FGE towards the invasive grassland, and were evident in the seed bank as well as in the standing vegetation. Despite similar trends, the soil seed bank and the standing vegetation of invasive grasslands showed low similarity in terms of richness and abundance due to the dominance of a single species.The results suggest that Austroeupatorium invasion has the potential to alter the existing vegetation in these highly degraded grasslands and influences their succession over time.

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Soil seed bank compositional change constrains biodiversity in an invaded species-rich woodland

Cited by 66 publications

References 42 publications

Inﬂuence of the Edge Effect on a Soil Seed Bank of a Natural Fragment in the Atlantic Forest

Inﬂuence of the Edge Effect on a Soil Seed Bank of a Natural Fragment in the Atlantic Forest

Responses of Soil Seed Bank and Vegetation to the Increasing Intensity of Human Disturbance in a Semi-Arid Region of Northern China

Austroeupatorium inulifolium invasion alters soil seed bank in anthropogenic grassland: a case study from Sri Lanka

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