Tag Archives: 2019

Day 6: we did not want to take any risks

Today’s general agenda: project leaf diversity —> project mutualism —> bird tower 

Having given my presentation on ants, I was beyond excited that we were going to focus on ants even more on this trip! In particular, today, we were tasked to examine the relationship between Azteca ants and Cecropia trees. These two different species form a mutualistic relationship where both parties benefit by working together. The ants get food while the tree gets protection. We wanted to know how Cecropia trees, before hosting these ants, protect themselves from being eaten. 

click for video showing the Azteca ants and Cecropia trees

720p

We have been constantly examining organisms on the ground that we decided to change up our perspective this evening. Near the research station is a bird tower that is three stories high. From the bird tower, we got to observe the Chiquibul forest in its entirety. We also got to see the Belize sunset. I don’t know if it was the wind, the greenery, or sunset, but, in the moment, I never wanted to get off the tower. Of course, all good things have to come to an end, so we turned on our headlamps and hiked back. 

selfie on the bird tower!

As I was carefully walking in the front, I hear Pierce call out “snake!” in the back. The snake turned out to be a venomous jumping viper hidden in the leaf litter! Though the snake was small in length, we did not want to take any risks. We kept our distances and safely moved forward.

Each night, as you may know, we give presentations that focuses on either specific taxonomic groups or topics. Today, Liz addressed tropical diseases. I was excited to learn more about Dengue Fever because the disease is somewhat prevalent in Taiwan. We even talked about how climate change can affect Dengue Fever. In short, climate change can exacerbate Dengue Fever and increase its range. 

Brendan Wong

Las Cuevas, Belize

5/19/2019

Day 5: “You’re in” good hands

Today’s general agenda: project P —> presenting project P —> lectures 

Right before we were about to head out to collect our vials in the forest, we had an unforeseen circumstance. This situation was probably one of the most unique situations I have been in- we were stopped by two Scarlet Macaws that were roaming around the research station. We looked at them through the scope once again, and this time I was able to capture their interaction on camera! It’s hard to imagine having your plans delayed because of Scarlet Macaws but that is essentially what happened. 

Morning interruption: Scarlet Macaws!

I was the first to collect my samples and boy was I surprised. My urine sample actually had two beetles in them! We took all our vials back, and, as part of our methodology, I was tasked to examine and group ants that shared similar body structures. Through a microscope, I was actually able to look super closely at the facial and body structure of the ants that we collected. Keegan’s vials contained a Strumigenys ludia, which is this really small ant, roughly 2.5mm, with a yellow coloration. In total, I sorted the ants into 16 different groups or morphospecies. We unfortunately were not able to draw any definitive conclusions for our research because we need more data points to support our question. 

my “powerful” and nitrogen-rich urine sample PC: Dr. Solomon

Prior to this trip, most of us were not too familiar with each other, but I was so impressed how we were able to put together a presentation. I think having to pee in vials definitely brought our whole group closer together as well. Tonight was also the night that I gave my presentation on ants to the class. After learning so much about ants in such a short period of time, I was able to draw connections to my presentation. I am very lucky to have very supportive classmates, and hearing their presentations have been so much fun. Moving forward, I look forward to presenting my other two presentations on sponges and coral reef formation. 

Brendan Wong

Las Cuevas, Belize

5/18/2019

Day 4: Peez in the Trap

Today’s general agenda: project P —> mayan trail exploration —> cave expedition —> night hike 

“ It has to be a joke” – Michael at 7am breakfast

At 5am, I woke up bright and early to watch birds at Las Cuevas. To our delight, we actually spotted some toucans! These toucans have very bright beaks, and, luckily, through the telescope, we were able to capture them preening themselves. 

 

5AM Bird-watching: Toucans!

As we were eating breakfast, we were presented with vials and asked by Dr. Solomon and Dr. Shore to pee in the vials. Two vials each with 25mL of urine is what we were told. Drug test? Not quite! We were actually using our urine sample to test the diversity and nitrogen levels in the rainforest floor and canopy. I present to you.. project P! 

In short, nitrogen is an important resource for organisms to function properly, and nitrogen can come from any decomposing plants, animals, and other organic matter that you commonly find on the rainforest floor. Using our urine as a nitrogen source, we wanted to test  We set up these pitfall traps with either our urine or water around Las Cuevas to see which ones bugs and other organisms preferred. 

Setting up my traps! PC: Dr. Solomon

At night, I actually was able to observe ants hard at work. Leafcutter ants are specific ants that exhibit leaf cutting behaviors. They lay out this path on the ground, which is basically a highway for them to transport to leaves back to their nest. 

Brendan Wong

Las Cuevas, Belize

5/17/2019

Day 3: and they came out of nowhere!

Today’s agenda: Las Cuevas research station —> exploring trails and setting up camera trap —> Las Cuevas Research Station 

Part of our trip objective is to conduct a research project around Las Cuevas Research Station. Our group came up with the plan to examine how the research station itself may serve as a disturbance for species diversity around Las Cuevas. To give some context, we are currently in a circular shaped clearing surrounded by the rainforest. We think that as we move farther away from the research station, we will see more diverse animals in numbers and species. 

We are using this technique called camera trapping where we pick certain locations and set up a camera to take pictures of anything that moves in front of it. I am hopeful that we would be able to spot some big cats (jaguar or puma) because on our way to our first camera trap spot, we saw what appeared to be some recent paw print on the floor. 

one of our camera trap locations

Speaking of travels, we hiked a total of 5 hours today, climbing up and down hills. With our field gear on, we were able to explore the rainforest in-depth. We saw spider monkeys, blue morpho butterflies, spiny orb weavers, Xaté fishtail palm, and so much more! In the ant department, we spotted army ants, Pseudomerymex ants, Dolichoderus ants, and fire ants. Somehow, twice today, I had ants all over me. One even bit me under my shirt. These ants are not so forgiving when you come across their nests. Oh, and did I mention that I also ate a termite, but we’ll just have to save that story for another time. 

At the end of the day, after seeing almost something from each taxonomic group that each of us had, we ended up finding ourselves with either a few ticks or maybe 100 of them! They came out of nowhere! Turns out, ticks are hard to kill. To effectively kill them, you have to use your nail on one finger and press it against your other finger so it effectively cuts ticks in half. 

 

Spotted two upside-down Scarlet Macaws

Brendan Wong

Las Cuevas, Belize

5/16/2019

Day 2: “More scientific way of describing their golden butt”

Today’s general agenda: Crystal Paradise Ecolodge —> Rio on River —> Caracol —> Las Cuevas Research Station 

It’s another day in Belize, meaning we got to eat more rice and beans! Rice and beans is a traditional Belizean cuisine, and, to my surprise, there is a subtle but not so subtle difference between rice and beans and beans and rice. Rice and beans have beans incorporated in the rice; beans and rice have separate rice and beans. Now, you know the differences! I recommend trying the rice and beans and most certainly with Marie Sharp’s hot sauce. 

I would say what makes today unique is that we were able to contextualize our trip through understanding more history of Belize. Belize is rooted in Mayan culture and artifacts. We had an in-depth tour by Leo, our tour guide, in Carcaol, a Mayan ruin. We explored how social class translates to how and where buildings were built. We also got to explore Mayan structures used for astronomy and religious purposes.

group at Caracol

While we were exploring Mayan structures, we got to see Montezuma oropendola nests hanging from the tree. These nests were woven by the birds themselves and are very sturdy structures. I was very fascinated by these nests because I have never seen birds build these type of basket-like nests. This trip is continuously opening my eyes to more to amazing animals! 

Low-Hanging Montezuma oropendola nest

Finally, today, in the ant-identification department, I present to you the “Golden Butt ant” in the Camponotes genus. These ants were found on tree trunks when we were on our way to Rio on River. They were roughly 2cm long, and they had golden-colored gaster region, which is just a more scientific way of describing their golden butt. Next stop: Las Cuevas Research Station! 

“Golden Butt Ant”

Brendan Wong

Las Cuevas, Belize

5/15/2019

May 17th – Peeing in a Cup, Lectures in a Cave, and Catching a Glue Butt Cockroach

Today was our second full day at Las Cuevas, and unfortunately the rain appears to have stopped so the rainforest has become quite dry. Even when we went to the pond nearby it had dried up, so sadly no amphibians were spotted today.
Despite not seeing any members of my taxon group today, it was a very exciting day, and not just because we were surprised this morning with vials to collect our own urine. We spent the morning placing these vials of pee as well as controls containing water on tree trunks and in the ground the trap Arthropods and see if they prefer the nitrogen rich urine to water.
In the afternoon, we finally got to explore a bit of the namesake of this place- Las Cuevas (the cave). We went into the second of five huge chambers in the cave that are accessible from our station and when we turned off our headlamps there was no light. We stayed in the cave during our lectures because it is naturally cool underground, although we did get quite a bunch of bat guano on our pants.
My favorite part of today was going night hiking after dinner. I have slowly begun to fall in love with the huge red-rumped tarantulas that live in holes around our rooms and got to see a bunch more of those. We also found Glue-Butt Cockroaches, which are big black roaches with a sticky substance on their backs to dissuade predators. On the second try, I managed to catch one and it crawled all over my arm. We also found a stick bug and a different large spider with orange and black stripes. We saw our first snake and saw another scorpion- a Florida Bark Scorpion to be exact.


Hopefully tomorrow will be less hot and dry so the frogs come back out, but one things for sure, I’ll be out looking for tarantulas again tomorrow night!

May 16th – hundreds of ticks and a tarantula

Today was a long day of hiking for our team as we set up our 7 working camera traps along the trails near the research station to see what wildlife crosses the paths when we aren’t there. Though there were light showers in the afternoon, today was a fairly sunny and dry day. However, in the morning I did find a broad-headed rain frog under a log by where we deployed our first camera trap. Broad-headed rain frogs can be easily identified as they are often found in the leaf litter and have a distinctive side stripe that extends over its eyes, sort of like a bandits mask in old westerns. In the afternoon on our way up the Monkey Tail Trail, I caught a glimpse of a Mexican Tree Frog of a khaki coloration. Unfortunately, it was already high up the tree by the time I saw him. This was an abnormal siting as Mexican Tree Frogs are typically more active at night, though perhaps the rains brought him out.


Today was an exciting day for sitings from outside my taxon group too. We saw a group of spider monkeys before lunch and a bunch of us ate termites under Scott’s instruction. In the afternoon we got to observe first hand the mutualistic relationship between the Bull Thorn Acacia tree and their ant protectors plus we saw the fresh claw marks in the dirt on trail where a puma or jaguar had crossed. We also saw three scarlet macaws in the canopy and I even managed to capture a video of them as they swooped past.
Back at the station I found, no exaggeration, at least 100 ticks on me. I spent probably an hour tweezing them all out. Unclear how I got wrecked by ticks when everyone else just found a few, but tomorrow I’m going to use a LOT of bug spray.
After our lectures, it was dark, aka perfect conditions for tarantula hunting. We found a huge red-rumped tarantula in its hole and managed to coax it out, revealing the broken shells of beetles it had been eating. We also found a different arachnid, the Florida Bark scorpion in a sink, but if you are reading this, don’t worry mom, I didn’t get my hand close to either of them.

Tropical Field Biology Presents: It’s a wrap folks! (Wrap-up Blog)

I cannot believe that EBIO 319 has already come to an end. It feels like just yesterday that we boarded our plane to start our journey. Alas, all good things must come to an end. EBIO 319 gave us the best of both worlds: surf and turf. Finally, I was able to see two ecosystems I have read about time and time again in real life. The first and most obvious similarity between the rainforest and reef is that they are both places of incredible biodiversity. Each ecosystem supports hundreds, if not, thousands of different organisms ranging from microbes to top predators.

Coral reefs and the rainforest are also similar because they are usually restricted to certain latitudes (what we call the Tropics), and they depend on a delicate balance of nutrients. As we have learned, both the rainforest and reef could be considered nutrient-poor environments. In the rainforest, the soil is nutrient-poor as most of the nutrients are incorporated in the living trees, and in the reefs, the water column is also nutrient poor. With this in mind, nutrient cycling is vital for the sustainment of these environments. Corals dependent on nutrient-cycling symbionts and tropical rainforest soil depends on decomposition as the warm humid conditions promote faster decay and recycling of nutrients.

Another similarity that I noticed as I explored these areas was the lack of space. In the rainforest, we had a trail that was easy to walk along, but even two feet off of the trail the vegetation started to thicken making it difficult to maneuver. In the same manner, navigating inside some of the patch reefs was incredibly difficult as every inch of space seemed to be occupied. As I have learned in this class and previous classes, the more diverse an area is the more specialized niches that arise. I saw this phenomenon in both areas as it seemed that every organism had a specific niche within their environment occupying nearly every inch of space. This is a factor that allows these areas to maintain that biodiversity.

I also noticed that with this lack of space and abundance of different organisms it promoted some intense defense and survival mechanisms. From my perspective, it seemed like in both regions’ organisms were always on edge. On the coral reef, there were stinging anemones, sea urchin spines, fire coral, and jellyfish. In the rain forest, it seemed like every corner we turned there was a venomous snake, biting insects, thorns, and poisonous plants.

However, I did also notice some things that I felt were different between the areas. Based on my observations, I felt that sites we went to in the rainforest were more “intact” than some of the sites we went to on Glover’s Reef. By intact, I mean that some areas of the reef seemed to be more in peril (less fish, dead coral, fleshy macroalgae) compared to the rainforest. Partly, I attribute this to the fact that we left the marine protected area for some of the reef sites unlike in the rainforest portion where we remained in the protected area. I even think that factors like climate change could provide some insight as to why some of the coral reefs appeared less healthy in some instances.

Overall, I really enjoyed this course. I do think the amount of work before the trip was greater than I expected, and even during the trip, the amount of work we do every day was more than I anticipated. We worked some days for 10-12 hours which is rewarding but also tiring. Although, I think the work before leaving was really beneficial in providing basic background knowledge of Belize. I also did not expect to do so many cool tourist activities like the ATM cave or Belize zoo. I thought those we were really fun and informative activities to do between the surf and turf portions of our class.

My favorite part of the course was learning about how Belize’s history is intertwined with their natural ecosystems. For instance, it was obvious the pride that our Belizean tour guides, Herbie and Javier, took in the reef, and I was surprised to see that. It was not just a job for them or a way to make money; it was them showcasing the place they call home. It gave me a face to the Belize conservation movement. I also loved going into the caves and learning the history behind them. They are experiences that I won’t forget.

I think my least favorite part of the course was the bug bites; I know it may seem significant, but at some points, they were so itchy that I felt it was hard to focus when doing outside activities. I also was not a fan of the long boat rides. They always just made me feel slightly off for the rest of the day.

I learned a lot about myself and my future during this trip. First, I do not think that I want to do fieldwork in the future. I am not saying I never will, but I am just not sure it is the avenue for me. However, I do know that I loved being exposed to these ecosystems and I want to protect them at all costs. So, the second thing this trip taught me is that I am now more interested in conservation and convincing others to appreciate our natural wonders. In other words, I think I am more interested in communicating complex scientific ideas to non-scientists. On a less serious note, another thing I learned was that traveling is very important to me. This small glimpse of life outside the US allowed me to gain an appreciation for my home and their home. So, now I want to make sure traveling to different places is somehow incorporated into my future.

ALL TAXON SEEN ON THIS TRIP:

Rainforest:

  1. Red-rumped tarantula, Brachypelma vagans
  2. Spiny Orb Weaver, Gastercantha cancriformis
  3. Orb Weaver, Araneidae
  4. Wolf Spider, Hogna sp.
  5. Harvestman, Cosmitdae sp.
  6. Florida Bark Scorpion, Centruroides gracilis
  7. Variety of ticks

Reef:

  1. Watercress algae, Halimeda optunia
  2. Three finger leaf algae, Halimeda incrassata
  3. Mermaid’s fans, Udotea sp.
  4. Green Bubble Weed, Dictyosphaeria cavernosa
  5. Sea Pearl, Ventricaria ventricosa
  6. Bristle Ball Brush Algae, Pencilius dumetosus
  7. Pink Segmented Algae, Janis adherens
  8. Reef cement, Porolithon pachydermum
  9. Burgundy crustose algae, Pessonneliam sp.
  10. Flat Twig Algae, Amphiroa tribulus
  11. Y-twig Algae, Amphiroa rigida
  12. Variety of other Coralline Crustose Algae

Day 5: Collecting pitfall traps and more grasshoppers!

Today we collected our vials from the pitfall traps that we set up yesterday. On our hike, we saw a Toucan and most excitingly, a Morelet’s Tree Frog! Once we grouped all the arthropods into different morphospecies and analyzed our data, we made a poster and presented it to Scott and Amanda.

Morelet’s tree frog

I saw a few more grasshopper nymphs which often form small groups which is why I see several on one leaf most of the time.

A grasshopper nymph. There is only one here, but there are often multiple grouped on one leaf.
A large grasshopper in the Acrididae family and maybe in the Schistocerca genus.

In the afternoon, I saw a grasshopper in the Acrididae family that at first reminded me of the Giant Red-Wing Grasshopper (Tropidacris cristata) because of its large size, and yellowish red hindwings. After looking more closely, I don’t think it is one because the shape of the pronotum, the plate like structure below the head, and the eye look different than the Giant Red-Wing Grasshoppers I have researched. Instead, I think it is in Schistocerca genus.

May 26th – Chaotic Night Snorkeling

I was still sick this morning so I stayed back and slept while everyone else went out to survey the local sea urchin populations. At noon everyone returned for lunch and then we made a poster using that data and had our lectures.

By dinner time I was feeling back to normal, so I ended up going out with the group for a night dive. It was pretty chaotic because we couldn’t find the reef in the dark and it felt like we were swimming forever. While we were out, we saw a huge spotted eagle ray and a pufferfish in the sea grass. When we finally got to the patch reef there were tons of spiny lobsters out hunting and we could see lots of shrimp darting through the water.

I’m pretty sure I also saw some sort of large true crab in the sea grass but it was pretty far away so I didn’t really get a good look at it for identification purposes. Tomorrow is our last full day in Belize and there is no more snorkeling left, I have to admit I’m ready to go home though I’m sure in retrospect this will all seem fun.