Riparian seed banks: structure, process and implications for riparian management

Goodson, Joanne; Gurnell, Angela M.; Angold, P. G.; Morrissey, Ian P.

doi:10.1177/030913330102500301

Cited by 93 publications

(85 citation statements)

References 116 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strong dissimilarity recorded between the vegetation and seed bank on the River Tech suggests that diaspores are mainly imported from other sites by physical agents, although the dissimilarity probably does not have a single, unique cause, and confi rms observations in other studies that, in general, riparian vegetation does not provide a good indicator of the quantity or species composition of diaspores within the seed bank (Goodson et al, 2001;Tabacchi et al, 2005;. For example, on the River Rhine, Germany, Beisman et al (1996) concluded that the seed bank contained only 20% of the species present in the vegetation within the active tract; Deiller et al (2001) showed that specifi c richness of the seed bank was weaker than the standing vegetation within the alluvial forest; and Hanlon et al (1998) obtained similar results within riparian forests on the Alleghney Plateau, Pennsylvania, USA.…”

Section: Specifi C Effects and Responses Of Pioneer Shrubland Typessupporting

confidence: 50%

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Corenblit

Steiger

Gurnell

et al. 2009

Earth Surf Processes Landf

247

218

View full text Add to dashboard Cite

Riparian vegetation responds to hydrogeomorphic disturbances and environmental changes and also controls these changes. Here, we propose that the control of sediment erosion and deposition by riparian vegetation is a key geomorphological and ecological (i.e. biogeomorphic) function within fl uvial corridors. In a 3 year study, we investigated the correlations between riparian vegetation and hydrogeomorphic dynamics along a transverse gradient from the main channel to the fl oodplain of the River Tech, France. Sediment erosion and deposition rates varied signifi cantly along the transverse gradient as a function of the vegetation biovolume intercepting water fl ow. These effects, combined with the extremely strong mechanical resistance of pioneer woody structures and strong resilience of pioneer labile herbaceous communities, Populus nigra and Salix spp., explain the propensity of biogeomorphic succession (i.e. the synergy between vegetation succession and landform construction) to progress between destructive fl oods. This geomorphological function newly identifi ed as an 'ecosystem function' per se encompasses the coupling of habitat and landform creation, maintenance and change with fundamental ecosystem structural changes in space and in time. Three different biogeomorphic functions, all related to the concept of ecosystem engineering, were identifi ed: (i) the function of pioneer herbaceous communities to retain fi ne sediment and diaspores in the exposed zones of the active tract near the water resource, facilitating recruitment of further herbaceous and Salicacea species; (ii) the function of woody vegetation to drive the construction of forested islands and fl oodplains; and (iii) the function of stabilised riparian forests to act as 'diversity reservoirs' which can support regeneration after destructive fl oods. Overall, this study based on empirical data points to the fundamental importance of sediment fl ow control by pioneer riparian vegetation in defi ning fl uvial ecosystem and landform organisation in time and in space.

show abstract

Section: Specifi C Effects and Responses Of Pioneer Shrubland Typessupporting

confidence: 50%

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Corenblit

Steiger

Gurnell

et al. 2009

Earth Surf Processes Landf

247

218

View full text Add to dashboard Cite

show abstract

“…Many previous works have shown that both above and below ground plant communities of river and wetland systems can change sharply between seasons and years (Britton and Brock 1994;Navie et al 2004;Capon 2005;Stromberg 2007). In general, in line with our hypothesis and trend reported elsewhere, seed bank appeared seasonally patterned with higher abundance and species richness occurring in late autumn/summer (when most plant species are reproductive and dispersing their seeds) and became depleted over winter-spring periods (Britton and Brock 1994;Goodson et al 2001;Dhileepan 2012).…”

Section: Discussionsupporting

confidence: 92%

“…Our seed bank density estimate is large (>10,000 seeds m À2 ) but is similar to values reported in the literature both for riparian corridors and wetland habitats in general (e.g., Goodson et al 2001;Siebentritt et al 2004;Gerard et al 2008). Soil seed bank homogeneity detected across the three disparate locations along the creek is not unusual despite heterogeneity in observed above ground vegetation (Osunkoya OO, unpublished data).…”

Section: Discussionsupporting

confidence: 88%

Soil seed bank dynamics in response to an extreme flood event in a riparian habitat

Osunkoya

Ali

Nguyen

et al. 2014

Ecological Research

View full text Add to dashboard Cite

A significantly increased water regime can lead to inundation of rivers, creeks and surrounding floodplains-and thus impact on the temporal dynamics of both the extant vegetation and the dormant, but viable soil-seed bank of riparian corridors. The study documented changes in the soil seed-bank along riparian corridors before and after a major flood event in January 2011 in southeast Queensland, Australia. The study site was a major river (the Mooleyember creek) near Roma, Central Queensland impacted by the extreme flood event and where baseline ecological data on riparian seed-bank populations have previously been collected in 2007, 2008 and 2009. After the major flood event, we collected further soil samples from the same locations in spring/ summer (November-December 2011) and in early autumn (March 2012). Thereafter, the soils were exposed to adequate warmth and moisture under glasshouse conditions, and emerged seedlings identified taxonomically. Flooding increased seed-bank abundance but decreased its species richness and diversity. However, flood impact was less than that of yearly effect but greater than that of seasonal variation. Seeds of trees and shrubs were few in the soil, and were negatively affected by the flood; those of herbaceous and graminoids were numerous and proliferate after the flood. Seed-banks of weedy and/or exotic species were no more affected by the flood than those of native and/or non-invasive species. Overall, the studied riparian zone showed evidence of a quick recovery of its seed-bank over time, and can be considered to be resilient to an extreme flood event.

show abstract

“…Its presence in patches of communities with nuphar lutea preserved during dredging draws particular attention. From this section of the river, it can colonise areas located below by means of its vegetative reproductive organs (Van der Valk 1992;Goodson et al 2001).…”

Section: The Structure Of Vegetation After Dredgingmentioning

confidence: 99%

Changes in the vegetation of a small lowland river valley (Krąpiel, NW Poland) after dredging

et al. 2015

View full text Add to dashboard Cite

Changes in The VegeTaTion of a small lowland RiVeR Valley (Krąpiel, NW polaNd) after dredgiNg abstractThe paper presented the impact of dredging on the vegetation of a regulated section of a lowland river based on the example of the Krąpiel River (NW Poland). The field research with pre-investment monitoring was conducted over three vegetation seasons in the years 2008-2010. Mechanical dredging and alignment of the river bed caused changes in vegetation structure. Reducing the diversity of habitat contributed to observed impoverishment of plant communities and species that build them. In the first year after dredging, communities from class Bidentetea tripartitae (chenopodietum rubri) were dominant along the flood terrace covered with a layer of dredging material. In the second year after dredging,

show abstract

Riparian seed banks: structure, process and implications for riparian management

Cited by 93 publications

References 116 publications

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Soil seed bank dynamics in response to an extreme flood event in a riparian habitat

Changes in the vegetation of a small lowland river valley (Krąpiel, NW Poland) after dredging

Contact Info

Product

Resources

About