Taming of the Shrew
Category: Coastal Forest, Elephant Shrew, Shimoni Forest, Shrews, Small mammals | Date: Nov 17 2009 | By: gvikenya
For about a year now we’ve been experimenting with a method of trapping the elusive and shy Zanj elephant shrew. This particular shrew is technically a sengi, and is a species that is not only endemic to the east African coast, but is also listed as ‘rare’ and ‘data deficient’ by the IUCN.
Shimoni forest boasts a significant population of this small mammal, and sightings of it by our forest teams are fairly regular (especially at this time of year when visibility is good). So we did some research and decided to procure ourselves a 50m long, very finely threaded fishing net with which to catch them with!
One of the cleared patches that mark the habitual pathway
We set the net up in a large semi circle, and either ‘beat the bush’ towards the net hoping to drive a shrew into it, or we sit nice and quietly and wait for one to wander in. This method works because the Zanj elephant shrew uses habitual pathways, which it will travel along each day clearing them of obstacles. So if one was to encounter the net, it would most likely attempt to get through or over the net, causing it to get entangled. Once caught we would take its measurements, weight, and then clip a small patch of fur on a designated spot on its body for mark-recapture purposes.
Some zanj elephant shrew droppings that are found around the paths
Unfortunately we haven’t caught one yet, but I do not doubt the method itself. Due to the amount of time needed to complete all of our regular surveys, we only get a chance to do this survey perhaps once or twice every three months. This is obviously not even remotely enough to stand a chance of catching a shrew. Especially because until recently we did not know what their trails looked like and therefore could not strategically place our net.
But a couple of weeks ago we saw one of the little chaps running away from us, and so we had a closer look at the exact route it took through the undergrowth. To our surprise, the path was quite obviously marked. Approximately every 30cm, there is a cleared area of dirt. A patch where all the leaf litter and twigs and other debris is cleared, leaving a bare area of dirt approximately 10cm long. And these cleared patches headed off into the undergrowth!
Several of the patches leading off into the undergrowth
Now we know what to look for, we have been spotting the shrew trails all over the forest! This has given us motivation to get back into shrew netting, and allowed us to strategically place our net across these trails, greatly increasing our chance of catching one!
We’ll keep you posted!
Tags: , beat the bush, data deficient, debris, droppings, East African Coast, elusive, endemic, entangled, fishing net, good visibility, habitual pathways, IUCN, leaf litter, mark-recapture, measurments, method of trapping, obstacles, rare, regular surveys, research, sengi, Shimoni Forest, shrew netting, shy, significant population, small mammal, strategically, trails, twigs, undergrowth, weight, zanj elephant shrew
Disturbance Report Submitted
Category: Charcoal Burning, Coastal Forest, Community Conservation, Friends of Shimoni Forest, Kenya Wildlife Service, Logging, Primate Research, Shimoni Forest | Date: Oct 15 2009 | By: gvikenya
East African coastal forests are some of the most critical habitats for wildlife conservation in the world. Once upon a time they were a continuous belt that stretched from Somalia down to Mozambique, and were home to some of Africa’s most diverse and unique wildlife. Unfortunately today, what remains are small, isolated and fragmented patches, in which the wildlife is becoming more and more vulnerable.
One of the many new roads scarring the forest
GVI has been conducting disturbance surveys in Shimoni forest for over three years now, and have a solid and robust set of data, which highlight the plight of this beautiful area. The main aim for our research in the forest, is to be able to hand it over to Friends of Shimoni Forest (a community-based organisation), which will empower them to lobby, apply or petition for things like land allocation or protective status for the forest.
The work of illegal loggers
We have been very encouraged recently however, as government organisations and the local administration have actively approached us for our data and results, as they too are very concerned with the level of destruction. Off the back of this, we have spent a lot of time putting together a disturbance report, which summarises our results over the years. This report has been written on behalf of Friends of Shimoni Forest, and has been submitted to Kenya Wildlife Service, Kenya Forest Service, the Chairman of the County Council, the District Commissioner, the East African Wildlife Society and the IUCN.
A charcoal pit in action
It is massively encouraging to know that our results are being looked at by so many people, and that the number and range of people concerned with this destruction is ever increasing. We cannot wait to work with everyone in the future, so that together we can put a stop to it.
Tags: , administration, Chairman of the County Council, Charcoal Pit, critical habitat, data, destruction, District Commissioner, disturbance, diverse, East African coastal forest, East African Wildlife Society, fragmanted patches, Friends of Shimoni Forest, government organisations, illegal loggers, isolated, IUCN, Kenya Forest Service, Mozambique, results, robust, Somalia, surveys, unique wildlife, vulnerable, wildlife conservation
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