fairfolio
Saved Projects

Nutrient Modification of the Convergent Lady Beetle, Hippodamia convergens Coloration

CSEF · 2002 Pharmacology/ Toxicology

Ashley S. Wasser · Viewpoint School, Calabasas

Overview

Objectives/Goals To determine the effect of rearing Hippodamia convergens larva in a carotenoid enchanced environment on adult lady beetle spot and dorsal coloration Methods/Materials Experiment#1: 60 Hippodamia convergen larvae were divided into 6 experimental vials containing nutrient mixed with a test agent. The test vials included a control group,a 0.5 milligram and a 1 milligram dose Vitamin A group, a 0.5 milligram and 1 milligram dose Beta Carotene group and a 1 milligram Vitamin C group.In Experiment#2:60 larvae were similarly divided,however the nutrient medium was treated with one tenth of the dose utilized in Experiment #1,either 0.5 or 1 microgram of test reagent Results Vitamin A and Vitamin C groups exhibited no change in pigmentation. Microgram doses of Beta-Carotene resulted in a modestly increased dorsal pigmentation. Conclusions/Discussion Dorsal coloration of the Convergent Lady Beetle,Hippodamia convergens, appears to be carotenoid or nutrient dependent.

Summary statement

This project is designed to demonstrate that pigmentation in lady beetles exhibits a linear relationship with dietary carotenoids.

Help received

Mother heped with typing and board display,Equipment at Briarwood Medical group, Supervision of project with teacher Mr.Louis Garcia, mentors Douglas Taren of the University of Arizona and Dr. H.L. Wasser, endocrinologist

Competition history

  • CSEF 2002 Pharmacology/ Toxicology · Entry J1436

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: California Science & Engineering Fair public projects

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google