• Issue
    Volume 23, Issue 1
    i-iv, 1-137
    January 2020

ISSUE INFORMATION

Free Access

Issue Information

  • Pages: i-iv
  • First Published: 26 January 2020

RESEARCH ARTICLES

Plant diversity and community composition in temperate northeast Atlantic salt marshes are linked to nutrient concentrations

  • Pages: 3-13
  • First Published: 09 October 2019
Description unavailable

Across fifteen salt marshes in Ireland, plant diversity was negatively related to soil NOx, and Shannon diversity had a hump-shaped relationship to P. Multivariate community composition was related to NOx, to a lesser degree to P, and marginally significantly to NH4+. Physiognomic and functional differences between the species underlying these relationships likely have implications for ecosystem services.

The recovery rates of secondary savannas in abandoned pastures are poorly explained by environmental and landscape factors

  • Pages: 14-25
  • First Published: 23 September 2019
Description unavailable

The wide variation in the recovery rate of cerrado vegetation among abandoned pastures is poorly explained by environmental and landscape factors. Estimating the natural regeneration potential for these secondary savannas therefore requires case-by-case monitoring. Initial species composition is influenced by soil properties, but changes in composition are driven by invasive grasses, filtering savanna specialists, which tend to decrease over time.

Open Access

Conservation and restoration of Nardus grasslands in the Swiss northern Alps

  • Pages: 26-38
  • First Published: 14 October 2019
Description unavailable

Nardus grasslands, a widespread alpine habitat, is losing its ecological integrity through the dominance of eutrophic plants or the grass Nardus stricta. Both degradation trends lead to a loss of typical plant species and inhabiting orthopterans. Mown Nardus grasslands are rarely degraded in comparison to grazed Nardus grasslands, for which an elevation-adapted grazing management is recommended to restore their quality.

Trade-offs between fire hazard reduction and conservation in a Natura 2000 shrub–grassland mosaic

  • Pages: 39-52
  • First Published: 23 October 2019
Description unavailable

Prescribed burning increased plant diversity in the short term, reduced fuel loads and fire hazard, but negatively affected habitat conservation status. We show that there are potential trade-offs between fire hazard mitigation and conservation in a mosaic of dry Mediterranean Natura 2000 shrub–grassland habitat types and that these must be considered during fuel management decisions.

Non-native species threaten the biotic integrity of the largest remnant Pacific Northwest Bunchgrass prairie in the United States

  • Pages: 53-68
  • First Published: 30 October 2019
Description unavailable

Plant composition was evaluated in the largest remnant Pacific Northwest Bunchgrass ecosystem in the US and we related composition to land-use, biotic, and environmental factors. Non-native plants accounted for 27% of species, and four of the ten most abundant species were non-native. Despite its protected status, non-native species pose a serious threat to the biotic integrity of remaining grasslands.

Open Access

Response of tree diversity and community composition to forest use intensity along a tropical elevational gradient

  • Pages: 69-79
  • First Published: 07 November 2019
Description unavailable

The interactive effects of elevation and forest use intensity affected tree diversity and community composition along a tropical elevational gradient in Ccentral Veracruz, Mexico. Tree species richness followed a low-plateau pattern for old-growth and a bimodal pattern for degraded and secondary forests. Overall, degraded forests were similar to old-growth forests in terms of species diversity and composition, highlighting their conservation value.

Free to Read

Vegetation mapping using hierarchical object-based image analysis applied to aerial imagery and lidar data

  • Pages: 80-93
  • First Published: 12 November 2019
Description unavailable

We developed and evaluated a new approach to mapping vegetation communities in disturbed shrublands. Using very high resolution aerial imagery and lidar data, we used a semi-automated object-based approach to map vegetation first at the level of individual shrubs, then used the percent cover of those shrubs to delineate vegetation communities.

Open Access

Barriers to restoration: Soil acidity and phosphorus limitation constrain recovery of heathland plant communities after sod cutting

  • Pages: 94-106
  • First Published: 20 November 2019
Description unavailable

Sod cutting is used as measure in heathlands affected by increased nitrogen deposition, but species recovery is often limited. This paper provides experimental evidence for barriers to successful restoration introduced by sod cutting: soil acidity and P limitation. Having important implications for managing ecosystems under high nitrogen load, this advocates a sound N emission reduction instead of N removal policy.

VEGETATION SURVEY

Free to Read

Classification of the Hyrcanian forest vegetation, Northern Iran

  • Pages: 107-126
  • First Published: 16 November 2019
Description unavailable

The Hyrcanian ecoregion in Northern Iran is an isolated area with a well-developed biome of temperate broad-leaved deciduous forest, containing many relict species. We provide the first comprehensive classification of these forests into alliances and associations across the whole ecoregion, based on a new database of 1,597 vegetation plots, and relate individual vegetation types to altitude, climate and soil conditions.

FORUM ARTICLE

Open Access

The whole and its parts: why and how to disentangle plant communities and synusiae in vegetation classification

  • Pages: 127-135
  • First Published: 12 October 2019
Description unavailable

Most plant communities consist of different structural and ecological subsets, from cryptogam to tree layers. In many phytosociological treatments, whole plant communities (phytocoenosis) and their subsets (synusiae) are equalized and classified in the same system. We emphasize the conceptual differences between the plant community as a whole and its parts and demonstrate ways to implement this insight in classification approaches.

LIST OF REFEREES

List of Referees

  • Pages: 136-137
  • First Published: 26 January 2020