STATISTICAL DIFFICULTIES IN THE ANALYSIS OF PREDATOR FUNCTIONAL RESPONSE DATA
- 1 October 1983
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 115 (10), 1365-1370
- https://doi.org/10.4039/ent1151365-10
Abstract
The utility of the ‘random predator equation’ of Royama (1971) and Rogers (1972) as a summary of the functional response relationship between predatory feeding behavior and prey density is questioned on the grounds that statistical assumptions in the regression analysis are not met by the linearized form of the equation. The absence of an alternative linearization that does not violate these assumptions necessitates the use of Holling's (1959) disc equation for the description of experimentally derived functional response relationships, when the comparison of parameters of different populations of predator or prey is a more important objective than a precise estimation.The statistical validity of the traditional linearization of the disc equation is questioned. An alternative transformation is proposed, which removes the statistical problems associated with the former transformation, and which permits a higher degree of explanation of variance in the independent variable by the regression.Keywords
This publication has 16 references indexed in Scilit:
- Experimental studies on acarine predator–prey interactions: effects of predator age and feeding history on prey consumption and the functional response (Acarina: Phytoseiidae)Canadian Journal of Zoology, 1981
- EVOLUTION OF HANDLING TIME: THE FUNCTIONAL RESPONSE OF A PREDATOR TO THE DENSITY OF SYMPATRIC AND ALLOPATRIC STRAINS OF PREYEvolution, 1979
- The Components of Arthropod Predation: I. The Prey Death-RateJournal of Animal Ecology, 1976
- Predation and Population StabilityPublished by Elsevier ,1975
- Random Search and Insect Population ModelsJournal of Animal Ecology, 1972
- A COMPETITION SUBMODEL FOR PARASITES AND PREDATORSThe Canadian Entomologist, 1969
- Reduction of Zooplankton Standing Stocks by Predaceous Cyclops bicuspidatus thomasi in Marion Lake, British ColumbiaJournal of the Fisheries Research Board of Canada, 1969
- BIOCLIMATIC STUDIES OF THE APHID PARASITE PRAON EXSOLETUM: I. EFFECTS OF TEMPERATURE ON THE FUNCTIONAL RESPONSE OF FEMALES TO VARYING HOST DENSITIESThe Canadian Entomologist, 1968
- The influence of predation by Syrphus Sp. on the numbers of Cardiaspina albitextura (Psyllidae).Australian Journal of Zoology, 1963
- Effects of Temperature and Host Density on the Rate of Increase of an Insect ParasiteThe American Naturalist, 1951