Available online
Description
This programme introduces the geological history of the archipelago and shows how the volcanic environment and climate have produced many different kinds of habitat. How species got to the islands ...is illustrated, and how they become established in some cases with adaptive shifts. A spectacular example is provided by the caterpillar of the geometrid moth which has become an insect predator. The species definition problem is considered looking at the environmental induced plasticity of Ohia (Meterosideros) and limpets (Neritina). The problem of extinction of island endemics is shown with an item on Achtinellid snails. Conservation issues are addressed with particular reference to the alala (Hawaiian crow) and the nen (Hawaiian goose).
This programme introduces the geological history of the archipelago and shows how the volcanic environment and climate have produced many different kinds of habitat. How species got to the islands ...is illustrated, and how they become established in some cases with adaptive shifts. A spectacular example is provided by the caterpillar of the geometrid moth which has become an insect predator. The species definition problem is considered looking at the environmental induced plasticity of Ohia (Meterosideros) and limpets (Neritina). The problem of extinction of island endemics is shown with an item on Achtinellid snails. Conservation issues are addressed with particular reference to the alala (Hawaiian crow) and the nen (Hawaiian goose).
| Module code and title: | S365, Evolution |
|---|---|
| Item code: | S365; 07; US version |
| First transmission date: | 1992 |
| Published: | 1992 |
| Rights Statement: | Rights owned or controlled by The Open University |
| Restrictions on use: | This material can be used in accordance with The Open University conditions of use. A link to the conditions can be found at the bottom of all OUDA web pages. |
| Duration: | 00:28:33 |
| + Show more... | |
| Producer: | David Jackson |
| Contributor: | Irene Ridge |
| Publisher: | BBC Open University |
| Keyword(s): | Archipelago; Caterpillar; Climate; Evolution; Extinction; Geometrid; Hawaii; Moth; Plasticity; Volcanic Environment |
| Subject terms: | Botany--Hawaii; Evolution (Biology)--Hawaii; Island animals; Island ecology; Island plants; Isolating mechanisms--Hawaii; Species--Hawaii; Zoology--Hawaii; Hawaii --Description and travel |
| Master spool number: | HOU6718 |
| Production number: | HAP1958 |
| Available to public: | no |
