05 Dec Variety is the spice of life: Monitoring the wildlife in our ecological restoration and rewilding plots
Blogpost by Alice Connell, Restoration and Rewilding Research Field Assistant
My work is never the same from one day to the next on the Restoration and Rewilding Program, which encompasses many diverse projects that require frequent monitoring. There is plenty to do, I always arrive at lunch hungry and satisfied after mornings of hard work. I want to give you an insight into my first month of being a Restoration and Rewilding Research Field Assistant.
We are employing a variety of approaches and techniques across the rewilding plots in order to “rewild” an array of animals to return to recently reforested abandoned grassland. Our idea is that as the overall species diversity increases, inter- and intra-species interactions within the regenerating areas will begin to re-establish. With some patience and continuous monitoring, we the aim to demonstrate a restored harmonic ecosystem functioning of the Osa Peninsula, and its associated key ecosystem services.
One project in the restoration plots is the installation of nesting and roosting boxes to attract birds and bats. To accommodate a variety of species, there are 5 bird box designs, each differing in dimension of the entry hole and the box itself. The frugivorous species belonging to both birds and bats play a vital role in increasing the rate of seed rain, and consequently, the rate of seed dispersal and reforestation.
One day of my week is dedicated to surveying the wonderfully diverse bats that are choosing to use the rewilding plots. The morning’s duty involves erecting mist nets in preparation for the evening’s bat survey. Come the evening time, the team heads back out into the field to open the nets. When the clock strikes six, the monitoring begins, and the excitement of the possibility of catching a new species record ripples through the team.
The following morning, decaying log piles and epiphytes (such as bromeliads) are translocated to the rewilding plots to increase microhabitat availability, in an effort to rewild amphibians and reptiles. Such microhabitats occur naturally in the primary forests, usually providing refuge for different invertebrates, such as centipedes and millipedes, and for amphibians and reptiles, such as leaf-litter frogs and sun-basking lizards. It is always a pleasure to find a fer-de-lance coiled peacefully within a log pile in a rewilding plot. While the log pile project is relatively new, we have already observed a rapid return and colonization of several amphibian and reptile species within a short period of time, which is highly encouraging.
Undeniably, a huge effort, in terms of time and determination, is required to create a biodiverse and ecologically restored forest ecosystem. Fortunately, the team of highly-motivated and enthusiastic people that constitute the Restoration and Rewilding Program indicates a promising future for Osa’s forests.