Spider data of Ter Braak 1985 & 1986 (Biometrics, Ecology)

Source
 Van der Aart, P J M. Smeenk-Enserink, N.
 Correlations between distributions of hunting spiders (Lycosidae,
Ctenidae) and environmental characteristics in a dune area
 1975 (25) pp 1-45
 Netherlands Journal of Zoology



 No   Abbrevia Name of environmental variable
 =============================================
  1   WaterCcon Watercon water content
  2   HumusCon Humuscon humus content
  3   Acidity  Acidity  pH-KCl
  4   BareSand BareSand percentage bare sand 
  5   FallTwig FallTwig cover by fallen leaves abd twigs (percentage)
  6   CoveMoss CoveMoss cover by moss layer
  7   CoveHerb CoveHerb cover by herb layer
  8   MaxHHerb MaxHHerb maximum heigth herb layer
  9   MinHHerb MinHHerb minimum height herb layer 
 10   CoveCala CoveCala cover by Calamagrostis epigeios
 11   CoveCare CoveCare cover by Carex arenaria
 12   CoveFesc CoveFesc cover by Festuca ovina
 13   CoveCory CoveCory cover by Corynephorus canescens
 14   CoveUrti CoveUrti cover by Urtica dioica
 15   CoveMoeh CoveMoeh cover by Moehringia trinervia
 16   CoveShru CoveShru cover by shrub layer
 17   MaxHShru MaxHShru maximum height shrub layer
 18   MinHShru MinHShru minimum height shrub layer
 19   CoveLigu CoveLigu cover by Ligustrum vulgare
 20   CoveTree CoveTree cover by Tree Layer
 21   MaxHTree MaxHTree maximum height tree layer
 22   CovePopu CovePopu cover by Populus tremula (five-classes scale)
 23   CoveCrat CoveCrat cover by Crataegus monogyna (five-classes scale)
 24   Lux grey Lux grey Lux at equal grey sky
 25   Lux sun  Lux sun  Lux at cloudless sky
 26   Refl Lux Refl lux Reflection of soil surface at cloudless sky