Similarity between the soil seed bank and the standing vegetation in the Strandveld Succulent Karoo, South Africa

2003 ◽  
Vol 14 (6) ◽  
pp. 527-540 ◽  
Author(s):  
A. J. de Villiers ◽  
M. W. Van Rooyen ◽  
G. K. Theron
Keyword(s):  
South Africa ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Succulent Karoo ◽  
Standing Vegetation

Seasonal variation in soil seed bank size and species composition of selected habitat types in Maputaland, South Africa

Bothalia ◽  
2007 ◽  
Vol 37 (2) ◽  
pp. 249-258 ◽  
Author(s):  
M. J. S. Kellerman ◽  
M. W. Van Rooyen
Keyword(s):  
South Africa ◽  
Seasonal Variation ◽  
Species Composition ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Woody Species ◽  
Forest Edge ◽  
Seed Banks ◽  
Habitat Types ◽  
Open Woodland

Seasonal variation in seed bank size and species composition of five selected habitat types within the Tembe Elephant Park. South Africa, was investigated. At three-month intervals, soil samples were randomly collected from five different habitat types: a, Licuati forest; b, Licuati thicket; c, a bare or sparsely vegetated zone surrounding the forest edge, referred to as the forest/grassland ecotone; d, grassland; and e, open woodland. Most species in the seed bank flora were either grasses, sedges, or forbs, with hardly any evidence of woody species. The Licuati forest and thicket soils produced the lowest seed densities in all seasons.  Licuati forest and grassland seed banks showed a two-fold seasonal variation in size, those of the Licuati thicket and woodland a three-fold variation in size, whereas the forest/grassland ecotone maintained a relatively large seed bank all year round. The woodland seed bank had the highest species richness, whereas the Licuati forest and thicket soils were poor in species. Generally, it was found that the greatest correspondence in species composition was between the Licuati forest and thicket, as well as the forest/grassland ecotone and grassland seed bank floras.

scholarly journals Seed Rain, Soil Seed Bank, and Seedling Emergence Indicate Limited Potential for Self-Recovery in a Highly Disturbed, Tropical, Mixed Deciduous Forest

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1391
Author(s):  
Anussara Chalermsri ◽  
La-aw Ampornpan ◽  
Witoon Purahong
Keyword(s):  
Mortality Rate ◽  
Seed Bank ◽  
Tree Species ◽  
Deciduous Forest ◽  
Soil Seed Bank ◽  
Seedling Emergence ◽  
Seed Rain ◽  
Reproductive Phenology ◽  
Mixed Deciduous Forest ◽  
Standing Vegetation

Human activity negatively affects the sustainability of forest ecosystems globally. Disturbed forests may or may not recover by themselves in a certain period of time. However, it is still unclear as to what parameters can be used to reasonably predict the potential for self-recovery of human-disturbed forests. Here, we combined seed rain, soil seed bank, and seed emergence experiments to evaluate the potential for self-recovery of a highly disturbed, tropical, mixed deciduous forest in northeastern Thailand. Our results show a limited potential for self-recovery of this forest due to low seedling input and storage and an extremely high mortality rate during the drought period. There were 15 tree species of seedlings present during the regeneration period in comparison with a total number of 56 tree species in current standing vegetation. During the dry season, only four tree seedling species survived, and the highest mortality rate reached 83.87%. We also found that the correspondence between the combined number of species and composition of plant communities obtained from seed rain, soil seed bank, and seedling emergence experiments and the standing vegetation was poor. We clearly show the temporal dynamics of the seed rain and seedling communities, which are driven by different plant reproductive phenology and dispersal mechanisms, and drought coupled with mortality. We conclude that this highly disturbed forest needs a management plan and could not recover by itself in a short period of time. We recommend the use of external seed and seedling supplies and the maintenance of soil water content (i.e., shading) during periods of drought in order to help increase seedling abundances and species richness, and to reduce the mortality rate.

The Relationship Between Distance From Water and the Soil Seed Bank in a Grazed Semi-Arid Subtropical Rangeland

1996 ◽  
Vol 44 (4) ◽  
pp. 421 ◽  
Author(s):  
SC Navie ◽  
RA Cowley ◽  
RW Rogers
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Common Species ◽  
Pressure Gradients ◽  
Standing Vegetation ◽  
Open Woodland ◽  
The Relationship ◽  
Germinable Seed ◽  
Eucalyptus Populnea ◽  
Semi Arid

The germinable soil seed bank of a grassy Eucalyptus populnea F.Muell, open woodland was investigated in relationship to distance from water (away from a bore-drain) on North Yancho Station, near Bollon in southern semi-arid Queensland. The germinable soil seed bank was both diverse and abundant, 69 taxa of seedlings being identified to species and 2 more to genus. A mean density of 13 207 ± 4160 seeds m-2 was recorded, with over 80% of the seed being from the annual forbs Crassula sieberana (Schultes & J.H.Shultes) Druce, Wahlenbergia tumidifructa P.J.Smith and Dysphania gomulifera (Nees) Paul G.Wilson. Most common species showed spatial variation in their germinable seed density with relation to distance from water, resembling the patterns previously reported by other authors for standing vegetation under stocking pressure gradients.

Spatial relationships between the standing vegetation and the soil seed bank in a fire-prone encroached dehesa in Central Spain

Plant Ecology ◽  
2012 ◽  
Vol 214 (2) ◽  
pp. 195-206 ◽  
Author(s):  
Iván Torres ◽  
Blanca Céspedes ◽  
Beatriz Pérez ◽  
José M. Moreno
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Spatial Relationships ◽  
Central Spain ◽  
Standing Vegetation

Persistent soil seed bank and standing vegetation at a high alpine site in the central Chilean Andes

Oecologia ◽  
1999 ◽  
Vol 119 (1) ◽  
pp. 126-132 ◽  
Author(s):  
Lohengrin A. Cavieres ◽  
Carmen Castor ◽  
Mary T. Kalin Arroyo ◽  
Ana María Humaña
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Standing Vegetation ◽  
Persistent Soil Seed Bank ◽  
Chilean Andes

scholarly journals Germinable Soil Seed Bank in Biancana Badlands

Diversity ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 223
Author(s):  
Simona Maccherini ◽  
Elisa Santi ◽  
Dino Torri
Keyword(s):  
Land Cover ◽  
Spatial Pattern ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Central Italy ◽  
Regeneration Potential ◽  
Bank Structure ◽  
Standing Vegetation ◽  
The Relationship ◽  
Germinable Seed

Seed banks are important for understanding vegetation dynamics and habitat regeneration potential. Biancana badlands are vanishing landscapes where recurring and non-recurring management has been advocated to restore vegetation. Here, we investigated germinable seed bank structure and composition of a biancana badland in central Italy and evaluated the relationship between the standing vegetation and soil seed bank. We identified four land cover classes in five biancana badlands of Tuscany (central Italy) and collected data from 132 vegetation plots and 660 soil cores. We recorded 117 species in the standing vegetation. The seedlings that emerged from the soil samples, mostly annual species, numbered 183 and belonged to 31 taxa (392.5 seedlings/m−2 on average across the four land cover classes). Standing vegetation showed an aggregated spatial pattern with distinct communities while the seed bank showed a less aggregated spatial pattern. The similarity between the seed bank and standing vegetation was low. In contrast with the features generally found for disturbed and pioneer communities, but in line with seed bank characteristics of other badlands, the seed bank was particularly poor in species.

The relationship between standing vegetation and the soil seed bank along the shores of Lake Taihu, China

2016 ◽  
Vol 96 ◽  
pp. 45-54 ◽  
Author(s):  
Lijuan Cui ◽  
Wei Li ◽  
Xinsheng Zhao ◽  
Manyin Zhang ◽  
Yinru Lei ◽  
...  
Keyword(s):  
Seed Bank ◽  
Lake Taihu ◽  
Soil Seed Bank ◽  
Standing Vegetation ◽  
The Relationship

Seed bank classification of the Strandveld Succulent Karoo, South Africa

2002 ◽  
Vol 12 (1) ◽  
pp. 57-67 ◽  
Author(s):  
A.J. De Villiers ◽  
M.W. Van Rooyen ◽  
G.K. Theron
Keyword(s):  
South Africa ◽  
Seed Dispersal ◽  
Seed Bank ◽  
Dominant Species ◽  
Vegetation Type ◽  
Seed Banks ◽  
Perennial Species ◽  
Succulent Karoo ◽  
Persistent Seed Bank

Laboratory characteristics of seeds of 37 species (41 seed types) from the Strandveld Succulent Karoo were used to predict seed bank types according to a modified key of ). Five seed bank strategies were recognized for this vegetation type, i.e. two with transient and three with persistent seed bank strategies. Of the 37 species investigated, 32% (all perennial species) had transient seed bank strategies, while 68% had persistent seed bank strategies. Seed dispersal of these 37 species was mainly anemochorous, although antitelechoric elements such as myxospermy, hygrochasy, heterodiaspory and synaptospermy were found among these species. The seed bank alone will not be sufficient to restore the vegetation of damaged land in the Strandveld Succulent Karoo, since many of the dominant species in the vegetation do not produce persistent seed banks. Many of these species may, however, be dispersed by wind into revegetation areas from surrounding vegetation. Topsoil replacement, seeding and transplanting of selected species will be essential for the successful revegetation of mined areas in this part of Namaqualand.

Impact of forest fire on soil seed bank composition in Himalayan Chir pine forest

2019 ◽  
Vol 13 (2) ◽  
pp. 177-184
Author(s):  
Bobbymoore Konsam ◽  
Shyam S Phartyal ◽  
Nagendra P Todaria
Keyword(s):  
Species Richness ◽  
Forest Fire ◽  
Seed Bank ◽  
Soil Depth ◽  
Soil Seed Bank ◽  
Pine Forest ◽  
Seed Density ◽  
Postfire Regeneration ◽  
Standing Vegetation ◽  
Chir Pine

Abstract Aims To explain how plant community copes with a recurring anthropogenic forest fire in Himalayan Chir pine forest, it is important to understand their postfire regeneration strategies. The primary aim of the study was to know: (i) how fire impact soil seed bank composition and (ii) how much soil seed bank composition differs with standing vegetation after the forest fire. Methods Soil samples were collected from burned and adjoining unburned sites in blocks using three layers down to 9 cm depth immediately after a forest fire and incubated in the net-house for seedling emergence. Same sites were revisited during late monsoon/early autumn season to know the species composition of standing vegetation recovered after a forest fire. Important Findings Soil contained viable seeds of >70 species. The average seed bank density was 8417 and 14 217 seeds/m2 in the burned and unburned site, respectively. In both sites, it decreased with increasing soil depth. Overall fire had no significant impact on seed density; however, taking individual layers into consideration, fire had a significant impact on seed density only in the uppermost soil layer. The species richness of soil seed bank and standing vegetation was 73 and 100, respectively (with 35 shared species), resulting in a similarity of about 40%. In contrast, >80% species in soil seed bank was found similar between burned and unburned sites. Further, there were no significant differences in species richness of standing vegetation in burned (87 spp.) and unburned (78 spp.) sites. Our results showed that fire had an insignificant impact on soil seed bank composition and restoration potential of a plant species from seeds. The understory herb and shrub plant community’s ability to form a fire-resistant viable soil seed bank and capable to recover in the postfire rainy season, explains how they reduce the risk of recurring fire damage in maintaining their population.

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