Abstract
1. Samples of Auchenorrhyncha were collected from fertilized plots between April 1978 and November 1979. 2. Twenty-nine species were recorded of which twenty-six probably breed regularly on the experimental area. 3. NPK fertilizer addition reduced leafhopper species diversity by disproportionately increasing the total number of individuals which effectively reduced the equitability index. 4. Delphacids were more abundant on plots receiving nitrogen fertilizer whereas cicadellids were more abundant on control (unfertilized) areas. 5. The major effect of nitrogen addition was to increase the food quality and the living area (plant architecture) available to leafhoppers. Both increased food quality and increased living area were beneficial to the leafhopper complex allowing the community to rapidly increase in numbers (i.e. the total captured in 1978 was 4122 whilst in 1979 the total captured was 17 964). 6. Leafhoppers were more abundant on plots with a 'preferred' leaf nitrogen level. Adult aggregation and female reproductive success were greater at the 'preferred' leaf nitrogen level.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
