Several hundred species of aquatic organisms can be found living in the unique habitats of bromeliad pools. This project aims to gain insight into some of the deep ecological mechanisms driving diversity patterns. Building on a detailed study of the aquatic invertebrates in bromeliads carried out over the last eight years, a series of experimental setups will be used to look into metacommunity dynamics and how dispersal affects alpha, beta and gamma diversity of invertebrates. Cusuco National Park has the highest diversity of passive dispersers (invertebrates that need a vector to move between bromeliads) recorded, and the presence of both these and active dispersers allows projects to be developed that study how dispersal strategies affect community assemblages and diversity patterns. In this project students will use small plastic cups as artificial bromeliads strategically placed in the forest to experimentally test hypotheses concerning the impact of factors such as metacommunity size (the number of bromeliads) and patch size (bromeliad size) on the aquatic invertebrate diversity. This can help us to better understand the relationships of tank bromeliads with a wide variety of other organisms.
If you would like to do a dissertation or thesis with us but your university hasn’t started dissertation planning or the project selection process, that’s no problem. You can cancel your expedition with zero cancellation charges up until the 15th of April of if you provide documentation from your university saying that they won’t support completing a dissertation project with us.
The cloud forests of Central America are some of the most biologically diverse ecosystems in the world, their unique microclimates supporting large numbers of species found nowhere else on the planet. Unfortunately, these cloud forests are also amongst the most threatened ecosystems globally, facing great pressures from habitat loss, climate change, hunting, and disease.
Cusuco National Park in Honduras is a classic example of an extraordinarily unique ecosystem that is also under great environmental pressure. The Opwall survey teams have worked here since 2003 and have recorded so many species (including 42 new to science) that the Park is now listed as one of the top 50 most irreplaceable protected areas in the world (based on a review of 173,000 sites worldwide). Unfortunately, this biodiversity is also at risk from a multitude of threats. As well as supporting an extremely active research program (with >140 research papers published to date), the datasets collected by the Opwall teams are also being used to underscore the global importance of the Park, supporting large conservation grant applications that will be necessary to secure the future of this completely unique, yet highly imperilled, cloud forest ecosystem.
Most of our volunteers fundraise for their expedition costs. Find out more.
Climate
In the cloud forest of Cusuco National Park it can get warm in open areas (temperatures up to 20 degrees Celsius) but much cooler in the shade of the forest. Overnight the temperature can drop below 10 degrees Celsius at higher altitudes. It rarely rains in the morning but it regularly rains late in the afternoon and overnight.
Fitness level required
Medium – High. You will need to hike from camp to camp for up to 5 hours over steep terrain with your backpack.
Creature comforts
Facilities in Cusuco are very basic (tents, hammocks, river showers, basic trench toilets). There is no cell phone signal in Cusuco National Park and very limited satellite internet available through a communal laptop at Base Camp.
Find out all about how you could fundraise for an expedition.
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More information on how the dissertation/thesis projects run within Opwall and what you will need to do
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