Species decline—but why? Explanations of carabid beetle (Coleoptera, Carabidae) declines in Europe

@article{Kotze2003SpeciesDW,
  title={Species decline—but why? Explanations of carabid beetle (Coleoptera, Carabidae) declines in Europe},
  author={D. Johan Kotze and Robert B. O’Hara},
  journal={Oecologia},
  year={2003},
  volume={135},
  pages={138-148}
}
We investigated some of the causes of ground beetle decline using atlas data from Belgium, Denmark and the Netherlands, countries in which natural environments have all but disappeared. We used ordinal regression to identify characteristics that are significantly correlated with the decline of carabid beetle species over the last 50–100 years, using a stepwise selection procedure to select the optimal model according to the Akaike Information Criterion. The results showed that large-bodied… 
Testing abundance-range size relationships in European carabid beetles (Coleoptera, Carabidae)
TLDR
Examination of species’ characteristics revealed that widespread species are generally large bodied, generalists and are little influenced by human-altered landscapes, while species with restricted distributions are smaller bodies, specialists, and favour natural habitat.
Fecundity determines the extinction threshold in a Canadian assemblage of longhorned beetles (Coleoptera: Cerambycidae)
TLDR
A strong negative relationship between reproductive rate and the minimum habitat amount required for species presence is found and can inform predictions of which species will be most affected by habitat loss.
Analysis of geographic centrality and genetic diversity in the declining grasshopper species Bryodemella tuberculata (Orthoptera: Oedipodinae)
Human-induced ecological and climatic changes have led to the decline and even local extinction of many formerly widely distributed temperate and cold-adapted species. Determining the exact causes of
The occurrence and distribution of carabid beetles (Carabidae) on islands in the Baltic Sea: a review
  • D. J. Kotze
  • Environmental Science
    Journal of Insect Conservation
  • 2008
TLDR
The conservation value of highly threatened cultural landscapes on Baltic Sea islands, such as species rich wooded meadows, is discussed as well as the possible negative effects of climate change on carabid beetles.
Where have all the beetles gone? Long‐term study reveals carabid species decline in a nature reserve in Northern Germany
TLDR
The results suggest that the drivers for the insect decline and the responses are multifaceted, and highlights the importance of long‐term studies with identification of the catches to, at best, species level to support the understanding of mechanisms driving changes in insect diversity and abundance.
The effect of local anthropogenic habitat heterogeneity on assemblages of carabids (Coleoptera, Caraboidea) endemic to the Alps
TLDR
It is suggested that local ground beetle species diversity strongly depends on small-scale anthropogenic variables ( namely habitat type, stone density and grazing intensity), and that habitat modifications (namely from forest to shrubbery) may significantly affect species movement patterns.
Assemblage Characteristics and Habitat Specificity of Carabid Beetles in a Japanese Alpine-Subalpine Zone
In lowland areas of the world and high-altitude European mountains, the species compositions, body sizes, and wing forms of carabid beetles are known to change according to vegetation structures.
Carabid beetle (Coleoptera: Carabidae) richness and functional traits in relation to differently managed grasslands in the Alps
TLDR
The results support the hypothesis that agroecosystem practices in alpine grasslands influence carabid beetle communities and suggest that the preservation of natural grasslands and the implementation of grazing should be promoted during the planning of agroECosystem mosaics.
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