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Navigation And Migration Notes

Natural Sciences Notes > Behavioural Neurobiology Notes

This is an extract of our Navigation And Migration document, which we sell as part of our Behavioural Neurobiology Notes collection written by the top tier of University Of Manchester students.

The following is a more accessble plain text extract of the PDF sample above, taken from our Behavioural Neurobiology Notes. Due to the challenges of extracting text from PDFs, it will have odd formatting:

Navigation and Migration Navigation in Bees Domestic honey bees, Apis mellifera, is a colonial insects living in hives consisting f one fertile queen, a few male drones and thousands of infertile female workers. The workers are responsible for general housekeeping: keeping the hive tidy, building the wax combs, caring for the young bees, and when they are old enough, their foraging gene (for) is expressed so that they begin foraging for food. Two different kinds of dance have been identified, used when communicating to the rest of the hive where local food sources are:

1. the round dance when food is within 50-75 metres of the hive

2. the waggle dance when food is more than 75 metres from the hive Honey bees have been tested for their ability to use smell as a way of navigation. Navigation and Migration in Birds

In one study, a migratory bird was kept in an Emlen funnel, which records the preferred orientation of animals. It was found in the lab, the bird became restless in the spring time and would hop onto the funnel readily. The black trace showed that in springtime, birds have a preferred direction of restless behaviour. Most of the orientation in towards the north. In the autumn, facing south-west. This bird would normally fly north in the springtime and south in the autumn, showing that their some sort of intrinsic mechanism to allow them to orient in the right way and sense the appropriate time of year. What Emlen did in subsequent experiments was place animals in conditions where there was no magnetic field, so no magnetic anomalies, and no ability by the bird to pick up information. What happened was there

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