A Quantitative Analysis of Shoot Phenology and Dominance in Herbaceous Vegetation

Al-Mufti, M. M.; Sydes, C.; Furness, S. B.; Grime, J. Philip; Band, S. R.

doi:10.2307/2259378

Cited by 585 publications

(376 citation statements)

References 21 publications

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“…Shading, including that caused by other macrophytes, may also reduce diversity. Macrophyte species richness follows an optimum curve over a productivity gradient, as earlier described for terrestrial vegetation (Al-Mufti et al, 1977): macrophyte richness peaks at intermediate standing crop, indicating light limitation at high plant production and suboptimal conditions for growth of many species at low productivity due to nutrient limitation (Willby et al, 2001;Murphy, 2002). Therefore, the return of large amounts of macrophytes does not need to coincide with the highest species richness.…”

Section: Macrophyte Biodiversitymentioning

confidence: 60%

Restoring macrophyte diversity in shallow temperate lakes: biotic versus abiotic constraints

et al. 2012

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Although many lake restoration projects have led to decreased nutrient loads and increased water transparency, the establishment or expansion of macrophytes does not immediately follow the improved abiotic conditions and it is often unclear whether vegetation with high macrophyte diversity will return. We provide an overview of the potential bottlenecks for restoration of submerged macrophyte vegetation with a high biodiversity and focus on the biotic factors, including the availability of propagules, herbivory, plant competition and the role of remnant populations. We found that the potential for restoration in many lakes is large when clear water conditions are met, even though the macrophyte community composition of the early 1900s, the start of humaninduced large-scale eutrophication in Northwestern Europe, could not be restored. However, emerging charophytes and species rich vegetation are often lost due to competition with eutrophic species. Disturbances such as herbivory can limit dominance by eutrophic species and improve macrophyte diversity. We conclude that it is imperative to study the role of propagule availability more closely as well as the biotic interactions including herbivory and plant competition. After abiotic conditions are met, these will further determine macrophyte diversity and define what exactly can be restored and what not.

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Section: Macrophyte Biodiversitymentioning

confidence: 60%

Restoring macrophyte diversity in shallow temperate lakes: biotic versus abiotic constraints

et al. 2012

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“…Le maximum de richesse spéci-fique correspond généralement à des taux intermédiaires de biomasse [6,7]. Les hypothèses avancées jusqu'à pré-sent restent théoriques et contradictoires [8].…”

Section: Introductionunclassified

Communautés de sous-bois des peupleraies artificielles : relation entre phytomasse, richesse spécifque et perturbations

Laquerbe¹

1999

Ann. For. Sci.

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“…Species traits that alter the resource supply have just as strong effect on community processes because the balance of supply resources determine the competitive balance among species in the community (Tilman, 1990). In this way: Competitive exclusion is one of the mechanisms (Grime, 1997) that may operate during secondary succession and probably causes the local extinction and rarefaction of some species (Al-Mufti et al, 1977).…”

Section: Productivity-diversity Relationshipmentioning

confidence: 99%

“…Many functional characteristics of ecosystems are in some way connected to productivity and, because of the strong effect of productivity on diversity (Al-Mufti et al, 1977), it is extremely difficult to interpret correlations between diversity and the functioning of ecosystems. For example, early-and late-successional communities differ not only in their stability characteristics and also in their species richness.…”

Section: Biodiversity-ecosystem Processesmentioning

confidence: 99%

Restoration of Biodiversity and Ecosystem

Santa-Regina¹

2013

American Journal of Engineering and Applied Sciences

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Succession is one of the most studied processes in ecology and succession theory provides strong predictability. However, few attempts have been made to influence the course of succession thereby testing the hypothesis that the passage of one stage is essential to enter a next one. At each stage of succession ecosystem processes may be affected by the diversity of species present, but there is little empirical evidence showing that plant species diversity may affect succession. The main objective in the present study is to test if there is any effect of plant species diversity on the functioning of artificially-created grassland communities. We were mostly interested in how successful is the sowing of meadow species into newly abandoned land and how long do the effect of initial sowing persist, how is affected the set of natural colonizers, which includes both the weed species and also the later successional species arriving naturally into the zone. One of the main questions concerning succession is to which extent the trajectory may be predictable or not. What will be the consequence of the different succession pathways for ecosystem processes, such as productivity and resource utilization, as well as species composition of both above and belowground communities? What will be the subsequent effects of feed back to vegetation development through initial manipulation of vegetation after land abandonment? And, finally, how general may results be when obtained in specific conditions? Our hypothesis is that an increase in the initial plant species diversity at the start of secondary succession enhances the amount of biomass produced and consequently stimulates the soil microbial biomass and the abundance of soil invertebrates. It has been suggested that changes in plant species diversity affect several ecosystem processes, such as primary productivity, nutrient retention and vegetation dynamics. A positive impact of species diversity on plant productivity has been explained by the complementarity of resource use among plant species or their functional groups.

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A Quantitative Analysis of Shoot Phenology and Dominance in Herbaceous Vegetation

Cited by 585 publications

References 21 publications

Restoring macrophyte diversity in shallow temperate lakes: biotic versus abiotic constraints

Restoring macrophyte diversity in shallow temperate lakes: biotic versus abiotic constraints

Communautés de sous-bois des peupleraies artificielles : relation entre phytomasse, richesse spécifque et perturbations

Restoration of Biodiversity and Ecosystem

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