Galapagos Earthworm Workshop Kick-off: Exploring the Hidden World beneath our Feet

Our third day in the Galapagos Islands marked the beginning of an exciting journey as we kicked off the Galapagos Earthworm Workshop—a crucial step in understanding the impacts of invasive earthworms on these extraordinary islands. Here's a glimpse into the highlights of our productive and enlightening day.

We started the day by arriving at the Galapagos Biosecurity Agency (ABG) where we had the privilege of meeting Dra. Marilyn Cruz Bedon, the Director of this vital governmental office. To our surprise, Marilyn had never heard about the invasive nature of earthworms and their potential negative impacts on ecosystems. However, she was incredibly supportive of our project and its objective to share knowledge about invasive earthworms with local stakeholders.

After our initial meeting, Marilyn warmly welcomed the workshop participants, which included fourteen individuals from the Galapagos Biosecurity Agency (BAG) and the Ministry of Agriculture, representing the four inhabited islands of the Galapagos—Santa Cruz, San Cristobal, Isabela, and Floreana. With a diverse group of participants, we were ready to embark on this educational journey together.

The workshop began with a questionnaire that allowed us to assess the participants' perspectives on the soil fauna present in the humid ecosystems of the inhabited islands. This exercise provided valuable insights into their existing knowledge and paved the way for the learning ahead.

Next, we introduced our project and research objectives, shedding light on the significance of non-native earthworms in the Galapagos. We emphasized the need for a standardized monitoring methodology to gather valuable data. To achieve this, Luis introduced the participants to the epicollect5 digital tool, which would facilitate data collection in the field. Equipped with the necessary tools, including the application installed on their cell phones, we were prepared for our first sampling site—Los Gemelos.

Los Gemelos welcomed us with a reforested Scalesia forest—a sight to behold. The participants were eager to learn more about earthworms, and for many, it was their first experience holding an earthworm in their hands. Jaime conducted a demonstration on how to establish a sampling plot and recover soil monoliths, showcasing the practical aspects of our work.

Excitement filled the air as the participants were divided into seven groups of two, ready to explore and handle earthworms. Their enthusiasm was palpable as they observed and interacted with these fascinating creatures. Curiosity drove them to ask questions, ranging from species identification to how far earthworms can crawl—a testament to their eagerness to learn and understand.

For our second sampling site, we returned to Los Gemelos, but this time, we chose a non-disturbed Scalesia forest. The participants were once again amazed by the differences they observed in the size and number of earthworms at this new location. Each encounter with these organisms further deepened their appreciation for the intricacies of the Galapagos ecosystems.

After a productive day of sampling, we visited an agricultural area called "El Chato" to recharge and enjoy a delicious lunch. "El Chato" also provided us with an opportunity to observe the Galapagos' Giant Tortoises in their natural habitat—an awe-inspiring experience that reminded us of the rich biodiversity these islands harbour.

With renewed energy, we selected an area within "El Chato" for our final sampling plots. Here, the participants were intrigued by the variability in earthworm species, sizes, and numbers. Marta, in particular, was excited to explore tortoise manure, searching for possible earthworm cocoons—a task she approached with gloves for protection.

As the day drew to a close, we reflected on the success of our first workshop day.