Colonisation credit in recent wet heathland butterfly communities

  title={Colonisation credit in recent wet heathland butterfly communities},
  author={Sara Cristofoli and Gr{\'e}gory Mahy},
  journal={Insect Conservation and Diversity},
Abstract.  1. Wet heathlands and closely associated habitats (e.g. bogs and poor fens) have been highly fragmented over the last two centuries. These habitats nowadays benefit from large‐scale restoration projects, for which the success should be evaluated. 

Effect of habitat spatiotemporal structure on collembolan diversity

Combined effects of area, connectivity, history and structural heterogeneity of woodlands on the species richness of hoverflies (Diptera: Syrphidae)

These findings emphasise the importance of maintaining connectedness between woodlands, which facilitates the dispersion in a changing landscape, and highlight the benefits of using a change-oriented approach to explain the current distribution patterns of species.

The Ecological Processes that Underpin Ecological Restoration

In this article, the importance of these major ecological theories and how relevant they are in restorations today are evaluated.

Imperfect detection biases extinction‐debt assessments

Freshwater ecosystems have been substantially altered, threatening the survival and recovery of aquatic species at risk. Estimating the likelihood and magnitude of future extinctions (extinction

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Agricultural intensification has caused a dramatic decline of global biodiversity and associated ecosystem services. Organic farming has been shown to partially counteract agricultural

Ecological time lags and the journey towards conservation success

The proposal for setting and evaluating conservation targets is to use milestones, or interim targets linked to specific ecological mechanisms at key points in time, to assess whether conservation actions are likely to be working and to accounting for ecological time lags in biodiversity targets and indicators.

On the deterioration and restoration of mire invertebrate communities

This document summarizes current capabilities, research and operational priorities, and plans for further studies that were established at the 2015 USGS workshop on quantitative hazard assessments of earthquake-triggered landsliding and liquefaction.

Testing coexistence of extinction debt and colonization credit in fragmented calcareous grasslands with complex historical dynamics

The results indicated that the presence of an extinction debt in reference habitats could lead to inaccurate conclusions in restoration monitoring, and extinction debt should be considered when choosing reference habitats to evaluate restoration success.



Plant species richness and composition of heathland relics in north‐western Belgium: evidence for a rescue‐effect?

The effects of the degree of fragmentation of heathland patches on their species richness and species composition are studied, and the ecological mechanisms behind the observed patterns are inferred.

Colonization Credit in Restored Wet Heathlands

The concept of "colonization credit" (i.e., the number of species yet to colonize a patch, following landscaping changes) is used as a framework to evaluate the success of colonization, in terms of species richness, in new/ restored habitats, taking into account the spatial structure of landscapes.

Effects of management cessation on grassland butterflies in southern Poland

How does landscape context contribute to effects of habitat fragmentation on diversity and population density of butterflies?

Habitat area was the most important predictor of butterfly unity structure and influenced habitat specialists more than habitat generalists, and landscape diversity appeared to be important for generalist butterflies only.

The quality and isolation of habitat patches both determine where butterflies persist in fragmented landscapes

  • J. ThomasN. Bourn B. Goodger
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2001
Habitat quality is the missing third parameter in metapopulation dynamics, contributing more to species persistence, than site area or isolation, and a reorientation in conservation priorities is recommended.

Local population dynamics are important to the conservation of metapopulations in highly fragmented landscapes

1. Population viability analyses (PVA) are extremely useful tools for the management of endangered species at the landscape scale. Two main families of spatially explicit models are available to


Data indicate that spatial configuration is important to mitigate extinction risks when habitat availability in a landscape is low, whereas no effect will be observed when overall area of habitat is high.

Effects of vegetation structure and floristic diversity on detritivore, herbivore and predatory invertebrates within calcareous grasslands

Investigation of the impact of military vehicle activity, floral species richness and vegetation structure on assemblages of detritivore, herbivore and predatory invertebrates finds the need for variety in the timing and type of management applied to promote heterogeneity in sward structure is emphasised.