GVI Kenya

Have you ever asked yourself what you would do with your day if you were a colobus monkey?  Perhaps not, but down here in Shimoni east forest, we are rather curious…

GVI has been conducting primate behaviour surveys on the colobus monkeys for about two and a half years now.  It has been a constant effort, but unfortunately we have never dedicated as much time and energy into it as we would have liked.  This is due to the fact that our forest research programme has many parts to it, with an array of different surveys that all require our attention. 

We have been privileged recently though, by the presence of a masters student from Manchester Metropolitan University who has come out to do his thesis on colobus behaviour in Shimoni forest!

Gareth has been with us for over ten weeks now, and still has approximately five weeks to go.  He has been stomping through the forest during every waking hour in search of our beloved colobus, with the hope of quietly observing and recording their behaviours. 

The main outputs one wants from behavioural surveys are time budgets.  These are simple breakdowns of what the colobus actually spend their time doing (normally as a percentage of total time).  So for example you could observe that during the early hours of the morning, an adult male may spend 60% of his time feeding, whereas during mid day, this may be replaced by resting (say for perhaps 85% of the time).  Whilst one is recording states (which are longer durations e.g. feeding and resting), one is also recording events, which are of a shorter duration, or “instant” events such as urination, or scratching.

You may be asking yourself why we would be interested in these details of a monkeys life.  Well, apart from being amazing to watch (they are scarily human-like!), these observations can tell us much about the wellbeing of the population, the impact of environmental pressures, the effects of human presence / absence, and the impact that human disturbance is having on different populations. 

For example if you were to observe a troop that reside deep in the forest well away from human presence, and then compare those results to a troop that is near recent destruction, you may observe some serious differences.  The troop deep in the forest may spend more time feeding in the morning and evening, and resting during the middle of the day – what they should be doing.  The troop closer to human disturbance may spend more time alert, or travelling.  This reduces the time they can spend on activities such as feeding, or socially important behaviours like grooming.  You do not need to be a genius to guess that this will be likely to have implications for the health of the individuals and the troop as a whole.

 Observing colobus in their natural habitat

So we are very happy to have Gareth here with us, and are extremely excited to see his results.  They may well reveal some distressing facts, which I have no doubt we will be able to link to the increasing destruction of the forest.  But the first step is collecting this data, and analysing the results.  Once we have firm conclusions, the next question will be “why?” and the next step – how do we stop it.