Journal of Insect Conservation

, 11:221

Habitat suitability models for the conservation of thermophilic grasshoppers and bush crickets—simple or complex?

  • Silke Hein
  • Julia Voss
  • Hans-Joachim Poethke
  • Schröder Boris
Original Paper

DOI: 10.1007/s10841-006-9038-5

Cite this article as:
Hein, S., Voss, J., Poethke, H. et al. J Insect Conserv (2007) 11: 221. doi:10.1007/s10841-006-9038-5

Abstract

One goal of conservation biology is the assessment of effects of land use change on species distribution. One approach for identifying the factors, which determine habitat suitability for a species are statistical habitat distribution models. These models are quantitative and can be used for predictions in management scenarios. However, they often have one major shortcoming, which is their complexity. This means that they need several, often costly-to-determine parameters for predictions of species occurrence. We first used habitat suitability models to investigate and determine habitat preferences of three different Orthoptera species. Second, we compared the predictive powers of simple habitat suitability models considering only the ‘habitat type’ as predictor with more complex models taking different habitat factors into account. We found that the habitat type is the most reliable and robust factor, which determines the occurrence of the species studied. Thus, analyses of habitat suitability can easily be carried out on the basis of existing vegetation maps for the conservation of the three species under study. Our results can serve as a basis for the estimation of spatio-temporal distribution and survival probabilities of the species studied and might also be valuable for other species living in dry grasslands.

Keywords

ConservationHabitat selection modellingDry grasslandSemi-arid grasslandModel simplicity

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Silke Hein
    • 1
    • 2
  • Julia Voss
    • 1
  • Hans-Joachim Poethke
    • 1
  • Schröder Boris
    • 3
  1. 1.Ecological Field StationUniversity of WürzburgWürzburgGermany
  2. 2.Institute of Plant Sciences/Applied EntomologyETH ZurichZurich
  3. 3.Institute of GeoecologyUniversity of PotsdamPotsdamGermany