A DECOY to cheat their predators

Stories

New species of Decoy Spider likely discovered at Tambopata Research Center

From afar, it appears to be a medium-sized spider about an inch across, possibly dead and dried out, hanging in the center of the spider web along the side of the trail. Nothing too out of the ordinary for Amazon. As you approach, the spider starts to wobble quickly forward and back, letting you know this spider is, in fact, alive.

 

I’ll tell you all about this amazing spider below. If you’d like to discover — literally — even more jungle species,  join in our Discover New Species project!

decoy_spider

The ‘decoys’ were built with a variety of forms and numbers of legs. 

Step in even closer and things start to get weird- that spider form you were looking at is actually made up of tiny bits of leaf, debris, and dead insects. The confusion sets in. How can something be constructed to look like a spider, how is it moving, and what kind of creature made this!?

It turns out the master designer behind this somewhat creepy form is in fact a tiny spider, only about 5mm in body length, that is hiding behind or above that false, bigger spider made up of debris. After discussing with several spider experts, we’ve determined it is quite probable that this spider is a  never-before-seen species in the genus Cyclosa.

This genus is known for having spiders that put debris in their webs to either attract prey or, as in this case,  confuse anything trying to eat them.

Update: See the discovery of this spider on video!

Decoy Spider

You could call it a Decoy Spider, in a sense. The spiders arrange debris along specialized silk strands called stabilimenta in a symmetrical form that makes it look almost exactly like a larger spider hanging on the web. Studies have found that some Cyclosa species have a higher survival rate against potential predators like paper wasps because the wasps end up attacking the debris on the web rather than the spider itself. As seen here, Cyclosa can make debris look a bit like a spider, but not nearly as detailed as the spiders found at the Tambopata Research Center which have a complex form that actually looks like a bigger version of themselves, complete with legs and all.

After asking other experts, I cannot seem to find another example of an animal creating a bigger, decoy version of itself to escape predation, making this species not only interesting to taxonomists naming new species but to those who study animal behavior, as well.

After 3 days of searching, we found about 25 of the spiders found in one floodplain area surrounding this Amazon jungle lodge, the Tambopata Research Center. Extensive searches in other areas did not turn up any of the spiders, showing that they have a rather restricted range, at least locally.

What’s the next step after discovering a new species?

It takes a lot of time and effort to go from finding it in the field to actually describing it. Specimens will have to be collected to compare to known species, dissections will be done on identifying features like the genitalia, and descriptions will have to be written to show why this species is different from others,  a type specimen will have to be selected, and the eventual publication of all of that information in a journal. Only then can it be considered a named new species to science.

For now, enjoy pointing it out with other explorers from around the world who come to Tambopata to check out all of our strange, interesting wildlife.

By Phil Torres

Phil Torres is a biologist, science communicator, photographer, and television host based in New York City who works on projects all over the globe. His work ranges from leading specialized ecotourism trips to photographing expeditions to being an on-camera personality and presenter.

 

Find his videos online at The Jungle Diaries.

 

Contact Philp: http://www.phil-torres.com/

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If you want to know what it is like in the jungle, this is the place to come. Amazing scenery, wildlife, and knowledgeable guides. To get the most out of the experience prepare for some early starts and early bedtimes. A fantastic few days which I won't forget in a hurry. Read all

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It gives a great insight into the jungle. We had a great visit. I recommend going during the dry season. Our guide Luis M. was excellent! Knowledgeable, enthusiastic, kind and a gentleman. Bear in mind it's going to be hot and humid with some mosquitos. It's a jungle out there! Read all

A spectacular experience—Juan Carlos and Carmen, we’d like to sincerely thank you for our stay at your lodge on the banks of the Tambopata River. This part of our two-month trip through Peru and Bolivia left an indelible impression on us. The transfer itself was a testament to the professionalism of your team: the journey from Puerto Maldonado to the lodge—with a very tight schedule to arrive before dark, a guide waiting for us, and a smooth trip by bus and boat—went off without a hitch despite our tight flight connections. Everything about the lodge won us over: comfortable accommodations in the heart of the jungle, good food, and a comprehensive, well-structured excursion program with morning, afternoon, and evening tours. We were thrilled every time we saw something new. We’d especially like to highlight our guide, Jordi: his knowledge of the flora and fauna, combined with his patience in spotting wildlife, made our stay truly special. Equally impressive was the condition of the jungle: pristine, clean, and home to an intact ecosystem ranging from big cats to macaws. The care and responsibility devoted to maintaining this place are evident. Incredible guides. And the entire staff was very attentive. Highly recommended Read all

A spectacular experience—Juan Carlos and Carmen are incredible guides. And the entire staff is very attentive. Highly recommended Read all

It was a wonderful experience and a pleasant surprise. The staff and guides at the Rainforest Expeditions lodge were fantastic and always went out of their way to ensure we had the best possible experience. Thank you to Juan Carlos and Carmen for their care and dedication to the group. Read all

We had an excellent 5 night stay at TRC with two couples. The remote Lodge and accommodation are unique especially with the open walls to the jungle in the rooms. The guides were first rate with superb knowledge and their ability to spot fauna in the dense jungle was incredible. We saw many species of monkeys; macaws, parrots, tapirs, etc.. even lucky enough to spot a jaguar. Food and service was really good. While not cheap it was I think very good value for money. We really enjoyed all the hikes and citizen science activities as well, he trips on the river and the clay licks. Overall amazing experience! As it’s the jungle not a zoo, you can’t guarantee that you’ll see everything all the time so allow enough days to properly explore. Read all

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Amazing experience at Refugio Amazonas. Rooms were comfortable and clean. Great buffet spread every day. Staff were friendly and attentive. Our guide Alan was very informative. Overall would definitely recommend a visit! Read all

We stayed 3 nights at Posada Amazonas during our summer trip to Peru, and it was definitely one of the biggest highlights of the whole journey. The staff were incredibly warm and welcoming. Our guide, Joss, was professional, friendly and amazingly knowledgeable. Sometimes it honestly felt like he could communicate with the animals — he could spot black caimans or giant river otters from hundreds of metres away! The excursions were unforgettable. We saw beautiful macaws, giant river otters, capybaras, sloths, tarantulas, an anaconda, different species of monkeys, toucans and so much more. I especially loved the rainforest walks and joined both the daytime and night walks. Every walk felt completely different, and you never knew what you might find. What also made the stay special was the lodge’s involvement in scientific and environmental projects. There was a talk every evening, and we learned a lot about the rainforest and its wildlife. We also joined the “Discover New Species” activity and helped search for possible new species of tiger moths — such a fun and memorable experience. The lodge itself is definitely rustic luxury rather than a city-style 5-star hotel. There is no air conditioning or hair dryer, but the hot shower, fan and hammock in the room were all very comfortable and suited the rainforest setting perfectly. And surprisingly, the internet connection was excellent — even the boats had Starlink! One of the things I appreciated most is that Posada Amazonas is a collaboration between Rainforest Expeditions and the local Indigenous community that owns the land. Many community members are directly involved in running the lodge, and you can really feel how much the staff care about and are connected to this rainforest, which is part of their ancestral home. If you are looking for an authentic, educational and truly memorable Amazon rainforest experience, I highly recommend Posada Amazonas. We absolutely loved our stay. Read all

The Tambopata Research Center (TRC) offers a well-organized immersive rainforest experience within the Tambopata National Reserve. The TRC and its accommodations put a spin on the term creature comforts by keeping guests comfortable while they commune among the creatures within the rainforest. I appreciated, through what I observed and the interactions I had, the attentiveness of the TRC team members. They knew their guests and seamlessly organized a lot for our benefit. The center assigns guests to a small group with a dedicated guide. In my case, Erick Arguedas was a superb ambassador for all things living in the rainforest, in part because it was the environment in which he grew up. His role was to ensure we got the most out of our visit. Being a long-term TRC guide gave him the expertise he needed to easily fulfill this role. Read all