caa a22 4500 606161376 CHVBK 20210128100634.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10526-014-9621-8 doi (NATIONALLICENCE)springer-10.1007/s10526-014-9621-8 Effects of pollen, sugars and honeydew on lifespan and nutrient levels of Episyrphus balteatus [Elektronische Daten] [Lara Pinheiro, Laura Torres, João Raimundo, Sónia Santos] Hoverflies require pollen, nectar and honeydew during their adult stage, but little is known about the suitability and nutrient provision of each of those resources. Thus, in this study we assessed the effect of different types of food, such as carbohydrates (glucose, fructose, sucrose and honey), pollen, a mixture of honey and pollen, and honeydew on longevity and nutrient levels of Episyrphus balteatus (De Geer) (Diptera: Syrphidae). Glucose and the mixture of pollen and honey were the food sources that gave the highest longevities. Considering nutrient levels in the body of hoverflies, sucrose generated high levels of fructose, total sugars and glycogen while glucose generated high levels of lipids. This suggests that carbohydrates are important food components for the survival and energy supply of hoverflies, with glucose being the most effective. Honeydew can also be used by hoverflies, representing a significant sugar source that may replace nectar when suitable flowers are scarce in agroecosystems. International Organization for Biological Control (IOBC), 2014 Syrphidae nationallicence Survival nationallicence Glucose nationallicence Honeydew nationallicence Nutrient levels nationallicence Pinheiro Lara Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut Torres Laura Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, University of Trás-os-Montes and Alto Douro, UTAD, Quinta de Prados, 5000-801, Vila Real, Portugal aut Raimundo João Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut Santos Sónia Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut BioControl Springer Netherlands 60/1(2015-02-01), 47-57 1386-6141 60:1<47 2015 60 10526 https://doi.org/10.1007/s10526-014-9621-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10526-014-9621-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pinheiro Lara Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut NATIONALLICENCE 700 1- Torres Laura Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, University of Trás-os-Montes and Alto Douro, UTAD, Quinta de Prados, 5000-801, Vila Real, Portugal aut NATIONALLICENCE 700 1- Raimundo João Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut NATIONALLICENCE 700 1- Santos Sónia Mountain Research Center, CIMO, School of Agriculture, Polytechnic Institute of Bragança, IPB, Campus Sta Apolónia, Apt. 1171, 5301-855, Bragança, Portugal aut NATIONALLICENCE 773 0- BioControl Springer Netherlands 60/1(2015-02-01), 47-57 1386-6141 60:1<47 2015 60 10526