It is the position of the American Dietetic Association that agricultural and food biotechnology techniques can enhance the quality, safety, nutritional value, and variety of food available for human consumption and increase the efficiency of food production, food processing, food distribution, and environmental and waste management. The American Dietetic Association encourages the government, ...

1. Current theory suggests that by responding to offspring food solicitation, or begging, parents improve the efficiency by which they convert parental investment into offspring fitness. However, the proximate mechanisms of this conversion are not entirely clear. One potential function of responding to begging is to maintain feeding regularity. Feeding at regular time intervals may improve offs...

we describe, for the first time, the life history of the joker butterfly, byblia ilithyia drury and larval performance in terms of food consumption and utilization, and the length of life cycle on its host plant tragia plukenetii a. r. smith. our study was conducted throughout 2007 in the andhra university campus and the zoo park area, 5 km away from the campus, at visakhapatnam (17â° 42' ...

Plant secondary metabolites provide resistance against herbivory if they are capable of decreasing herbivore performance or deterring feeding. Here we test the effects of phlorotannin-containing polar extracts from the brown alga Fucus vesiculosus on the assimilation efficiency and feeding preferences of the herbivorous isopod Idotea baltica. We test the effects separately for each sex of the i...

In mammals, altricial birds and some invertebrates, parents care for their offspring by providing them with food and protection until independence. Although parental food provisioning is often essential for offspring survival and growth, very little is known about the conditions favouring the evolutionary innovation of this key component of care. Here, we develop a mathematical model for the ev...

The development and cultivation of tomato cultivars that are resistant to the tomato fruit borer, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), are very limited in Iran and other parts of the world because of the lack of information about resistant tomato cultivars to minimize the use of insecticides. Therefore, the present study was carried out to identify alternative methods to chem...