Monday, December 19, 2011

Harvesting of fauna (game capturing).


MASS CAPTURE USING THE BOMA OR OELOFSE METHOD:     

The following method was devised in the Hluhluwe-Umfolozi Park by Jan Oelofse in the late 1960's while employed by the KwaZulu-Natal Nature Conservation Service and is presently in use. A large funnel-shaped site (approx 300m) is constructed, using opaque plastic suspended by cables. At the widest open end a plastic curtain is used. This is closed once the animals are in the site.
They are gradually herded down to the narrowest end using a series of curtains to reduce the size of the holding area. The final crush has a loading ramp where game transport vehicles are in position to receive the animals. This commonly used method is effective for catching herd animals such as impala, wildebeest, kudu, and zebra.
NET CAPTURE:
This is probably the oldest method used in game capture. It is effective in dense bush cover for catching animals such as nyala, reedbuck, bushbuck, and duiker. Approximately 100 m of rope netting is woven through the bush and the animals are chased into the nets by a line of beaters. There are sufficient staff in the vicinity of the nets to restrain and tranquillise the animals once they are caught.
PASSIVE CAPTURE:
This is a relatively simple, inexpensive and unstressful way of catching game. Animals are attracted to a central point with food or water. Once they are accustomed to the site, the construction of a capture enclosure can commence. However this is time-consuming and unsuitable for large-scale capture operations involving many animals.
DRUGS:
Drugs can be used to catch all species of game. Generally, however, unless selected animals are to be removed, the only game which are caught with the use of drugs are elephant, rhino, and giraffe.
STRESS:
Stress is a major problem in the catching of wild animals. Contrary to popular belief, animals are not fit and game capture staff strive not to over exert them during capture operations. Chasing is done fairly slowly and not during the heat of the day.
Great care is exercised while transporting newly caught animals. Animals are injected with long- and short-acting tranquillisers before transportation where necessary. Some species are transported in mass, these are usually herd animals and it is always attempted to transport these animals in family groups. Animals such as reedbuck which tend to be more solitary are transported in individual crates. Overcrowding in holding pens is also avoided. Each pen has a secluded section where an animal can retreat to feel secure. To avoid aggression and injuries, mature males are generally kept separate from females and young animals.
PENS:
Animals are placed in holding pens to prepare them for long road journeys, for export.They are kept in pens with as little noise and disturbance as possible, and are fed on indigenous foods where possible. Gradually other foods such as lucerne, teff and cubes are introduced. Animals usually pick up condition after a week or two, and are ready for transportation between four and six weeks in the pens.
Motion capturing



Motion capture, motion tracking, or mocap are terms used to describe the process of recording movement and translating that movement on to a digital model. It is used in military, entertainment, sports, and medical applications, and for validation of computer vision[1] and robotics. In filmmaking, it refers to recording actions of human actors, and using that information to animate digital character models in 2D or 3D computer animation. When it includes face and fingers or captures subtle expressions, it is often referred to as performance capture.
In motion capture sessions, movements of one or more actors are sampled many times per second, although with most techniques (recent developments from Weta use images for 2D motion capture and project into 3D), motion capture records only the movements of the actor, not his or her visual appearance. This animation data is mapped to a 3D model so that the model performs the same actions as the actor.

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