ID Hodkinson
Host plant growth characteristics as determinants of abundance and phenology in jumping plant-lice on downy willow
Hodkinson, ID; Bird, JM; Hill, JK; Baxter, R
Abstract
1. Salix lapponum host plants at an upper altitudinal site differed significantly in size, structural density, phenology, growth performance, and spatial isolation from those growing at a lower site. 2. Plant differences were paralleled by significant differences in psyllid population density and phenology parameters, with psyllid population density, percentage of catkins occupied, and phenological development relatively lower or retarded at the upper site. Population densities at the upper site, nevertheless, remained high. 3. Plant measurements were good predictors of insect density, often explaining up to 73% of the variance in abundance among plants at a given site. 4. Sets of four plant characters identified by best subsets regression were better predictors of psyllid density and development than single factors, although differences were often not great and the combinations of characters selected by multiple regression sometimes differed from the best single predictors. 5. Best single predictors of psyllid density on catkins were measurements of plant size, particularly height, length, and basal stem diameter. Shoot density and catkin phenology were occasionally important but plant isolation and prior growth performance were less important. 6. By contrast with density, age structure of the psyllid population was predicted best from plant phenological measurements, notably catkin phenology.
Citation
Hodkinson, I., Bird, J., Hill, J., & Baxter, R. (2001). Host plant growth characteristics as determinants of abundance and phenology in jumping plant-lice on downy willow. Ecological Entomology, 26(4), 376-387. https://doi.org/10.1046/j.1365-2311.2001.00337.x
Journal Article Type | Article |
---|---|
Publication Date | Aug 1, 2001 |
Deposit Date | May 18, 2007 |
Journal | Ecological Entomology |
Print ISSN | 0307-6946 |
Electronic ISSN | 1365-2311 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 26 |
Issue | 4 |
Pages | 376-387 |
DOI | https://doi.org/10.1046/j.1365-2311.2001.00337.x |
Keywords | Plant lice, Downy willow, Pphenology. |
Publisher URL | http://www.blackwell-synergy.com/doi/full/10.1046/j.1365-2311.2001.00337.x |
You might also like
Global transpiration data from sap flow measurements: the SAPFLUXNET database
(-0001)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search