The demographic consequences of nitrogen fertilization of a population of sundew,<i>Drosera rotundifolia</i>

Redbo-Torstensson, Peter

doi:10.1111/j.1438-8677.1994.tb00743.x

Cited by 30 publications

(21 citation statements)

References 17 publications

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“…However, in the case where D. rotundifolia, but not Sphagnum, is given nitrogen, an increased vegetative reproduction would not be surprising. Redbo-Torstensson (1994) reported that flowering frequencies of D. rotundifolia increased after nitrogen fertilisation. The reason why this did not happen in the present study could be twofold: first, it may be due to the type of plants selected for my study -all were large, and could probably have flowered without any supplemental nitrogen.…”

Section: Discussionmentioning

confidence: 98%

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Competition between Sphagnum fuscum and Drosera rotundifolia: A Case of Ecosystem Engineering

Svensson¹

1995

Oikos

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Section: Discussionmentioning

confidence: 98%

“…Indeed, nearly all plants flowered. Second, since Redbo-Torstensson (1994) applied the fertiliser on top of the Sphagnum carpet, many small D. rotundifolia plants were overgrown. This would increase flowering frequencies since the age-class composition should have been biased towards older plants.…”

Section: Discussionmentioning

confidence: 99%

Competition between Sphagnum fuscum and Drosera rotundifolia: A Case of Ecosystem Engineering

Svensson¹

1995

Oikos

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“…Increasing human pressure on land through agricultural transformation and habitat degradation, as well as indirect impacts like drought and eutrophication are threatening the survival of these Drosera species. Another major threat is the displacement by more competitive species (De Ridder & Dhondt 1992;Nordbakken et al 2004;Redbo-Torstensson 1994). Drosera rotundifolia is still widespread in Germany but has started to decline.…”

Section: Introductionmentioning

confidence: 99%

Successional changes on a former tank range in eastern Germany: Does increase of the native grass species Molinia caerulea cause decline of less competitive Drosera species?

Gaertner

Konold²,

Richardson

2010

Journal for Nature Conservation

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“…In general, documented responses include eff ects on growth and species composition, competition between species, peat and peat water chemistry, decomposition, and nutrient cycling. A brief summary of the European critical loads for wetlands is presented here and summarized in , Redbo-Torstensson 1994. Th e European critical load is similar to the range of critical loads suggested for freshwater wetlands in the United States ( availability results in an increase of the nutrient content of plant material (Limpens et al 2003a, Tomassen et al 2003 and algal growth (Gulati andDeMott 1997, Limpens et al 2003b), and aff ects herbivorous, detritivorous, and carnivorous invertebrates (Van Duinen et al 2004). )…”

Section: Comparison To Critical Loads From Europementioning

confidence: 99%

Assessment of Nitrogen deposition effects and empirical critical loads of Nitrogen for ecoregions of the United States

Pardo¹,

Robin-Abbott²,

Driscoll³

2011

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Human activity in the last century has led to a substantial increase in nitrogen (N) emissions and deposition. This N deposition has reached a level that has caused or is likely to cause alterations to the structure and function of many ecosystems across the United States. One approach for quantifying the level of pollution that would be harmful to ecosystems is the critical loads approach. The critical load is defi ned as the level of a pollutant below which no detrimental ecological effect occurs over the long term according to present knowledge.The objective of this project was to synthesize current research relating atmospheric N deposition to effects on terrestrial and aquatic ecosystems in the United States and to identify empirical critical loads for atmospheric N deposition. The receptors that we evaluated included freshwater diatoms, mycorrhizal fungi and other soil microbes, lichens, herbaceous plants, shrubs, and trees. The main responses reported fell into two categories: (1) biogeochemical, and (2) individual species, population, and community responses.The range of critical loads for nutrient N reported for U.S. ecoregions, inland surface waters, and freshwater wetlands is 1 to 39 kg N ha -1 y -1. This broad range spans the range of N deposition observed over most of the country. The empirical critical loads for N tend to increase in the following sequence for different life forms: diatoms, lichens and bryophytes, mycorrhizal fungi, herbaceous plants and shrubs, trees.The critical loads approach is an ecosystem assessment tool with great potential to simplify complex scientifi c information and effectively communicate with the policy community and the public. This synthesis represents the fi rst comprehensive assessment of empirical critical loads of N for ecoregions across the United States.

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The demographic consequences of nitrogen fertilization of a population of sundew,Drosera rotundifolia

Cited by 30 publications

References 17 publications

Competition between Sphagnum fuscum and Drosera rotundifolia: A Case of Ecosystem Engineering

Competition between Sphagnum fuscum and Drosera rotundifolia: A Case of Ecosystem Engineering

Successional changes on a former tank range in eastern Germany: Does increase of the native grass species Molinia caerulea cause decline of less competitive Drosera species?

Assessment of Nitrogen deposition effects and empirical critical loads of Nitrogen for ecoregions of the United States

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