Evolution of larval foraging behaviour in Drosophila and its effects on growth and metabolic rates

Autor:	Ngoc Huy Nguyen, Donna G. Folk, Phi Lam, Phuong Nguyen, Michael R. Rose, Laurence D. Mueller, Timothy J. Bradley
Rok vydání:	2005
Předmět:	Larva Experimental evolution animal structures biology Resistance (ecology) Physiology Ecology fungi Foraging Larval foraging behaviour biology.organism_classification Insect Science Drosophila melanogaster Drosophila Ecology Evolution Behavior and Systematics Drosophila larvae
Zdroj:	Physiological Entomology. 30:262-269
ISSN:	1365-3032 0307-6962
DOI:	10.1111/j.1365-3032.2005.00458.x
Popis:	The evolution of foraging in Drosophila melanogaster (Meigen) is stud- ied using outbred populations that had been differentiated using laboratory selection. The foraging behaviour of Drosophila larvae is measured using the foraging path length of 72-h-old larvae. The foraging path length is the distance travelled by foraging larvae over 5 min. Populations of Drosophila selected for rapid development show significantly greater path lengths than their controls. Populations of Drosophila selected for resistance to ammonia and urea in their larval food have shorter path lengths than their controls. Individuals in the ammonia-resistant populations are smaller than those in the control populations, but the size-adjusted metabolic rates are not significantly different. A simple model is proposed suggesting that changes in larval foraging behaviour may be a means for Drosophila larvae to adapt to new environments that require add- itional maintenance energy. In the ammonia-selected populations, crucial tests of these ideas will have to be conducted in environments with ammonia.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78f7f4dc0d519d875e061eb78df6537b https://doi.org/10.1111/j.1365-3032.2005.00458.x Zobrazit plný text záznamu Plný text