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  • Overview
  • Objectives
  • Skills you gain
  • Costs to Consider
  • Site Conditions

If you can stay for a period of 7 weeks you will have enough time to visit the marine site following 6 weeks of data collection for a dissertation project at the terrestrial site. This can be for research experience or used for your final dissertation project as part of your undergraduate studies. With this course after your first 6 weeks in the forest, you would then be able to move to the marine site to gain your PADI open water dive training certification, or if already qualified, take part in the Caribbean reef ecology course.

Those booking this option, please email expeditions@opwall.com to let them know whether you would like to learn to dive, snorkel or are already qualified.

Bat abundance in the Calakmul Biosphere Reserve is very high due to the huge expanse of primary forest and presence of multiple caves that act as roost sites. Moreover, some of the rarer carnivorous bats such as the great false vampire bat are flourishing in Calakmul due to abundant food supply and Mayan ruins which they use as roost sites. Calakmul, therefore provides an excellent site for bat research projects as the large numbers of captures provide a substantial dataset and the opportunity to learn bat handling techniques. Bat diversity is unlikely to be uniform throughout the reserve due to changes in the habitat resulting from vicinity to ruins sites (Mayan ruins contain unusually high densities of large fruiting trees as a result of ancient Mayan agroforestry) and distance from temporary lakes knows as aguadas that are the only sources of water in the reserve. Students will investigate bat abundance and diversity using mist net surveys in conjunction with bat detectors that record bat vocalizations. These combined methods will provide data on the carnivorous, frugivorous and nectivorous bats that are frequently caught in the nets and the insectivorous bats that have such fine-tuned echolocation that they can detect mist nets and are therefore virtually impossible to capture. These data will be collected across a range of transects in the reserve that encompass different habitat characteristics. Each transect contains a number of 20m x 20m habitat survey plots that provide detailed information of the forest characteristics in the area. In each of these plots, tree species will be identified, tree DBH, understorey vegetation, canopy openness, and the number of saplings will be measured. Bat data from each transect can then be related to mean habitat characteristics for the transect and comparisons between bat diversity and habitat variables may be investigated.

Extended Dissertation Summary

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.

Mexico Terrestrial Research Objectives

The Calakmul Biosphere Reserve (CBR) in Mexico is an UNESCO World Heritage Site of Culture and Nature and is part of the largest expanse of neotropical forest north of the Amazon, filled with ancient Mayan ruins and supporting one of the highest biodiversity levels in the world. The CBR is also an extremely important wildlife corridor that is crucial for migrating
birds and mammals with extensive ranging patterns such as jaguar and Baird’s tapir. Over the last 10 years the reserve has experienced a notable reduction in rainfall. Monitoring data on birds, bats, herpetofauna, butterflies, ungulates, felids and primates are being used to evaluate the impact of climate change and changing rainfall patterns on the abundance, ranging and diversity of fauna to help determine when and where mitigation should be used to restore water sources. Data are also used to assess the efficacy of a range of sustainable development projects with buffer zone communities designed to minimise forest encroachment. In addition, there are specialist studies on jaguar and their preferred prey, behaviour of spider monkeys and population demographics of Morelet’s crocodiles.

  • Develop an independent research project and write a formal proposal
  • Develop animal handling skills
  • Learn general identification skills and how to identify Mexican species in the field
  • Learn how to organise and analyse large data sets
  • Opwall fee.
  • Cost of international flights into and out of Cancun.
  • Cost of internal travel to and from the start and end point of the expedition, plus any hotels you might require. The standard package costs around £319 or $415.
  • Extra nights’ accommodation in Cancun costs around £72 or $93 (breakfast included).
  • Park entrance fees are £20 or $26.
  • Mexico charges a tourist tax, currently approximately $13 before leaving the country to travel home.
  • Vaccinations and prophylactic medicines – cost can vary depending on your healthcare provider.
  • All prices in GBP or USD unless specified.
  • Standard travel insurance – cost can vary, for 2 weeks it can range anywhere from £40-80 or $40-150.

Most of our volunteers fundraise for their expedition costs. Find out more.

Climate
In Mexico it is hot and humid. Temperatures rarely drop below mid 20s even at night. It is unlikely to rain much, but you do get occasional heavy showers during the season.

Fitness level required
Medium in the forest, low on the marine site. There are some reasonably long walks through the forest, terrain varies by camp with some being almost completely flat and others more undulating. On the marine site lower levels of fitness are required (although you will likely be very tired at the end of the day after the in-water sessions).

Creature comforts
Facilities in the forest are basic (sleeping in tents or hammocks in a camp site), with a mixture of dry and trench toilets. There are freshwater showers but water conservation is particularly important to bear in mind. There are some limited opportunities to buy snacks at some forest camps and there is no phone signal at any of the sites. On the marine site the facilities are a little less rustic – you sleep in bunk beds in dormitories about 10 minutes drive from the beach. There is good phone signal and the site is well supplied with shops.

Locations

  • Mexico
  • Calakmul

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Preparation

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