The Spatial Distribution of Oak Leafroller 1 Egg Masses on Primary Host Trees 2

Autor:	E. Alan Cameron, Jay S. Ellenberger
Rok vydání:	1977
Předmět:	Archips semiferanus Animal science Ecology Egg masses biology Host (biology) Insect Science embryonic structures biology.organism_classification Spatial distribution Population density Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Entomology. 6:101-106
ISSN:	1938-2936 0046-225X
DOI:	10.1093/ee/6.1.101
Popis:	The distributions of oak leafroller ( Archips semiferanus ) egg masses, deposited in 1972 and 1973 by females in different population densities, were examined on red oak species in central Pennsylvania. As egg mass density increased, the percentage of egg masses on the boles of trees increased from 50–72. From 67–80% of the egg masses were found on limbs and bole sections in the middle half of host trees. On boles females discriminated in oviposition by laying more egg masses in the southern quadrant, and at middle heights rather than at either extreme. The aggregation of egg masses on boles varied with population density, and regression models provided expected distributions of numbers and densities of egg masses on boles as well as describing distributions on limbs and within crowns.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::368b2333efd80ae18437da46e9d15f0d https://doi.org/10.1093/ee/6.1.101 Zobrazit plný text záznamu