Premium
Species coexistence in grasslands: questionnaire on techniques and spatio‐temporal scales
Author(s) -
Herben Tomáä,
Krahulec Frantiäek
Publication year - 1996
Publication title -
journal of vegetation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 115
eISSN - 1654-1103
pISSN - 1100-9233
DOI - 10.2307/3236331
Subject(s) - biomass (ecology) , ecology , grassland , temporal scales , spatial ecology , environmental science , range (aeronautics) , scale (ratio) , geography , biology , cartography , materials science , composite material
. All participants at the conference ‘Species coexistence and diversity maintenance in temperate grassland ecosystems’, in Bedřichov, Czech Republic, were asked to fill in a questionnaire about the spatio‐temporal parameters, study type, and species performance measures used in studies presented at the conference. 57 out of 90 participants responded. Most of the reported studies were field experiments. The major differences in approach and spatial parameters divided the studies into singular or repeated recordings. Repeated recording studies tend to use more precise measures of species quantity for species (biomass, number of individuals) than one‐time recording studies. Repeated recording studies cover whole range of plot sizes, whereas singular observation studies are confined to ranges from ca. 10 −2 to 10 2 m. The plot size is not related to the extent in time duration, with several fine‐ scale studies of rather long duration. Most common experimental manipulations (biomass removal, nutrient addition) indicate that the species coexistence is addressed in a rather indirect way at the community level.