Available online
Description
'When a single gravid female migrates to a new environment and starts off a new population reproductively isolated from the ancestral population, courtship behaviour changes. This is the start of t...he speciation process. Couple this with adaption to new conditions in a changing geological or climatic environment and you have all the factors for new species formation. All this is illustrated in the first part of the television programme and video with reference to Hawaiian Drosophila. In the second half of the programme the biological control of the Mediterranean fruit fly in California is considered. The present strategy involving the mass production of sterile flies for mating with the wild population is shown. But why does it not solve the problem as effeiciently as it could? Ken Kaneshiro's answer based on research at the University of Hawaii is that not enough attention has been paid to breeding flies with the proper courtship behaviour to make eradication strategy work efficiently.'
'When a single gravid female migrates to a new environment and starts off a new population reproductively isolated from the ancestral population, courtship behaviour changes. This is the start of t...he speciation process. Couple this with adaption to new conditions in a changing geological or climatic environment and you have all the factors for new species formation. All this is illustrated in the first part of the television programme and video with reference to Hawaiian Drosophila. In the second half of the programme the biological control of the Mediterranean fruit fly in California is considered. The present strategy involving the mass production of sterile flies for mating with the wild population is shown. But why does it not solve the problem as effeiciently as it could? Ken Kaneshiro's answer based on research at the University of Hawaii is that not enough attention has been paid to breeding flies with the proper courtship behaviour to make eradication strategy work efficiently.'
| Module code and title: | S365, Evolution |
|---|---|
| Item code: | S365; 10; US version |
| First transmission date: | 1992 |
| Published: | 1992 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:02 |
| + Show more... | |
| Producer: | David Jackson |
| Contributor: | Irene Ridge |
| Publisher: | BBC Open University |
| Keyword(s): | Drosophila fruit flies, sexual selection; Mediterranean fruit flies, courtship behaviour |
| Subject terms: | Drosophila; Evolution (Biology); Species |
| Master spool number: | HOU6799 |
| Production number: | FOUS618D |
| Videofinder number: | 4066 |
| Available to public: | no |
