Clonal integration enhances survival and performance of Potentilla anserina, suffering from partial sand burial on Ordos plateau, China

Yu, Fei‐Hai; Chen, Yu-Fu; Dong, Ming

doi:10.1023/a:1016032831038

Cited by 103 publications

(123 citation statements)

References 33 publications

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“…Clonal integration between ramets with similar ability to take up and use resources has not been shown to increase their combined performance, i.e., clonal performance, in homogeneous environments (e.g., Evans and Whitney 1992;Alpert 1999;Yu et al 2002). Performance of clonal fragments in homogeneous environments has, accordingly, often been used as an experimental control for effects of Abstract Physiological integration between connected ramets can increase the performance of clonal plants when ramets experience contrasting levels of resource availabilities in heterogeneous environments.…”

Section: Introductionmentioning

confidence: 99%

Clonal integration in homogeneous environments increases performance of Alternanthera philoxeroides

et al. 2015

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Physiological integration between connected ramets can increase the performance of clonal plants when ramets experience contrasting levels of resource availabilities in heterogeneous environments. It has generally been shown or assumed that clonal integration has little effect on clonal performance in homogeneous environments. However, a conceptual model suggests that integration could increase performance in a homogeneous environment when connected ramets differ in uptake ability and external resource supply is high. We tested this hypothesis in a greenhouse experiment with the amphibious plant Alternanthera philoxeroides. Ramets in clonal fragments containing three rooted and two unrooted ramets were either left connected or divided into a basal part with two rooted ramets and an apical part with the other ramets. To simulate realistic, homogeneous environments of the species with different levels of resource supply, plants were grown at 0, 20, or 40 cm of water depth. Water depth had a positive effect on most measures of growth, indicating that resource supply increased with depth. Connection had negative to neutral effects on total growth of fragments at a water depth of 0 cm, and neutral to positive effects at 20- and 40-cm depths; effects on the apical part were generally positive and larger at greater depth; effects on the basal part were generally negative and smaller at greater depth. Results largely supported the hypothesis and further suggest that clonal integration of allocation and reproduction may modify benefits of resource sharing in homogeneous environments.

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Section: Introductionmentioning

confidence: 99%

Clonal integration in homogeneous environments increases performance of Alternanthera philoxeroides

et al. 2015

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“…Only severe denudation treatments reduced the growth of the large A. ordosica seedlings, probably because of root exposure to the air and reduced capacity to take up water and nutrients (Fryrear et al 1973;Eldred and Maun 1982;Yu et al 2002Yu et al , 2008. However, as long as denudation did not exceed 10 cm, seedling growth remained remarkably constant.…”

Section: Datamentioning

confidence: 97%

“…Natural regeneration is generally realized by seeds, although plants may occasionally split into clonal fragments. Small seedlings often experience various depths of denudation or burial (Kobayashi et al 1995;Yu et al 2002;Zhang et al 2002;Li et al 2005). …”

Section: Study Speciesmentioning

confidence: 99%

“…Sand movement by wind is a common event in coastal and inland dune ecosystems (Moreno-Casasola 1986;Maun 1994;Danin 1996;Brown 1997;Yu et al 2002Yu et al , 2004Yu et al , 2008. As a result, plants growing on the windward slopes of dunes may experience various degrees of denudation and those on the leeward slopes often suffer from partial or complete burial, while on the crest both denudation and burial may occur (Maun 1998;Yu et al 2004Yu et al , 2008.…”

Section: Introductionmentioning

confidence: 99%

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Seedlings of the semi-shrub Artemisia ordosica are resistant to moderate wind denudation and sand burial in Mu Us sandland, China

Werger

Zuidema

et al. 2010

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Sand movement is a common stress for plants in dune ecosystems. Seedlings in such an environment often experience various degrees of denudation or burial. A field experiment was conducted with Artemisia ordosica, a dominant semi-shrub species in Mu Us sandland, China, to test seedling survival and growth under different degrees of denudation and burial. Seedlings from two cohorts with height of 5.0 ± 0.02 cm (S1) and 9.3 ± 0.09 cm (S2) were selected and randomly subjected to three denudation treatments (2.5, 5, and 10 cm), five burial treatments (2.5, 5, 7.5, 10, and 15 cm), or a control. S2 seedlings had a higher survivorship than S1 seedlings, especially under severe denudation (10 cm) and complete burial (5 cm in S1; 10 cm in S2). Seedling survivorship was unaffected by moderate burial (\5 cm in S1;\10 cm in S2) or denudation (\10 cm), but it was significantly reduced under complete burial or severe denudation. Seedling growth in leaf area, height, and biomass only declined in severe denudation or complete burial. Seedling burial led to higher biomass investment in shoots, while the reverse was the case in denudation. The results indicate A. ordosica is highly tolerant to moderate burial and denudation, showing adaptive responses that likely increase survival. Differences in responses between seedling cohorts suggest that large seedling size is beneficial for successful establishment in sandy environments and measures to prevent severe denudation and burial of recently germinated seedlings are necessary in attempts to restore steppe vegetations.

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“…Clonal integration enables the translocation of resources between inter-connected ramets (Chesson and Petersen, 2002). The benefits of this resource sharing have been measured in the form of enhanced productivity (Stuefer et al, 1994;Wilsey, 2002;Pauliukonis and Gough, 2004) and/or improved survival (Pennings and Callaway, 2000;Yu et al, 2002). However, few studies have assessed the ecological/evolutionary significance of clonal integration in afro-tropical savanna communities.…”

Section: Introductionmentioning

confidence: 99%

Fitness Implications of Clonal Integration and Leaf Dynamics in a Stoloniferous Herb, Nelsonia canescens (Lam.) Spreng (Nelsoniaceae)

Chidumayo

2006

Evol Ecol

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Very little has been published on the life-history significance of clonal plants inhabiting southern African savanna environments. This study investigated the fitness implications of clonal integration, resprouting behaviour and growth phenology in a stoloniferous herb, Nelsonia canescens (blue pussyleaf) at a savanna site in Zambia, central Africa. Census data on growth and survival were obtained regularly on permanently marked ramets over a 4-year period, from 2001 to 2005, and analyzed to assess how physiological integration and module demography contribute to fitness in Nelsonia. Above ground and below ground growth occurred during the dry and rainy seasons, respectively. Dry season growth was characterized by resprouting and production of stolons that bore small pubescent leaves with high mortality (30-80% month )1 ). Deep roots and high leaf turnover appear to contribute to sustained growth during the dry season when topsoil moisture and nutrient availability are low. The interaction between maximum temperature and precipitation explained a significant proportion (59%, p<0.01) of the monthly variation in leaf size and increasing evapo-transpiration levels appeared to trigger the shift in leaf size from a large wet season type to a small dry season one. During the dry season Nelsonia resprouted from dormant buds buried at the time of root development in daughter ramets in the rainy season. Temporal integration significantly (p<0.05) enhanced survival of daughter ramets. However, daughter ramets with severed mother-daughter ramet inter-connectors experienced high initial mortality that was caused by both early stolon severing and drought stress during the root development phase. The majority of ramets lived for 5-10 months and 25% were still alive at the age of 3.5 years. The study showed that although the growth phenology of Nelsonia has serious ecological implications for accessing scarce resources during the dry season, the species utilizes a number of strategies to overcome resource limitations in a seasonally heterogenous environment.

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Clonal integration enhances survival and performance of Potentilla anserina, suffering from partial sand burial on Ordos plateau, China

Cited by 103 publications

References 33 publications

Clonal integration in homogeneous environments increases performance of Alternanthera philoxeroides

Clonal integration in homogeneous environments increases performance of Alternanthera philoxeroides

Seedlings of the semi-shrub Artemisia ordosica are resistant to moderate wind denudation and sand burial in Mu Us sandland, China

Fitness Implications of Clonal Integration and Leaf Dynamics in a Stoloniferous Herb, Nelsonia canescens (Lam.) Spreng (Nelsoniaceae)

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