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Critters Seen on a Short Night Hike

3/19/2019

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Well, it's that time again.  My blog is widely known as a good place to see some creepy stuff.  These aren't super creepy I suppose, but I'll put them all up here for the lovers of cool animals that may or may not be the most friendly.

First up, let's just get this one out of the way.  As it was, quite literally, in my way on the trail I was walking.  When I asked about how common the fer de lance was in the area I was told that not all that long ago a female had apparently given birth nearby as they were seeing a lot of small ones.  And so I was hoping to see one, and sure enough there was a small one right on the edge of the path.  Pretty snakes, but best to see them and not step on them as they can be a bit aggressive.
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A young fer de lance (Bothrops asper), locally known as the terciopelo, along the trail at Campanario at night
Not too far from the snake I found another of those things that make wearing open-toed shoes a less than stellar idea.  This scorpion (Centruroides sp.) was tucked in up against a root, so not an amazing photo.  In general if you startle these guys they duck into a hole or under a rock so I just let him be and got the best photo I could.  I pretty much don't move or bother the things I photograph, even when I can't get the photo I would like.  I'm not working with the animal so no need to bother it other than with a photo.

​
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A scorpion, which appears to be in the Centruroides genus, at the Campanario Biological Station at night
One of the most common things out there were spiders.  How do I know?  Well many species have eyes that reflect in my headlamp at night and in places there were many dozens of them looking at me.  Some nice big ones, too.  Not the eyes that were big, but the spiders.

This spider was one of several large ones I saw on tree trunks.  Many others were on the ground and there were some truly enormous web-making spiders (Nephila clavipes) as well.
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A particularly large spider seen at night
One fairly fascinating animal I saw was a tail-less whip scorpion (Family: Amblypygidae).  These are pretty harmless, although they look wicked and I suppose if you grabbed one those spines on the pedipalps might give you a good poke.
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A tail-less whip scorpion (Family: Amblypygidae) at Campanario during the night
One of the last things I saw wasn't creepy in the usual sense, more prehistoric-looking.  Some of the lizards can be quite interesting to look at up close.  I haven't had any time to identify this one yet, but it was very attractive and was found sleeping on a palm leaf.  Sorry to wake you up my friend, but a quick photo and you can go back to dreaming reptile dreams.
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One of the mid-sized lizards on a palm frond at Campanario
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Wandering spider (Phoneutria boliviensis) I think

6/3/2018

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These wandering spiders are pretty common at the FCRE.  They have a very toxic bite but no one gets bit as they very rarely have any interaction with the people here.  I am pretty sure, but not positive, that this is Phoneutria boliviensis, here eating a leaf-mimic katydid.  A large, dangerous spider you would be best not to have run up your pants or such a thing.
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Wandering spider eating a leaf-mimic katydid
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Spider hunting - looking for Nephila clavipes

5/31/2018

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For the past few years there has been a project studying the golden silk orb-weaver spider (Nephila clavipes).  These spiders tend to prefer open areas and the tall grass along the access road can have a lot of them.
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Sophie Boerboom and Jiramit (Yok) Moontep documenting a golden silk orb-weaver spider
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Two spiders and a bug from the FCRE

5/28/2018

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The first two photos are of large non-web building spiders.  These are hunters not trappers and while the first one is not much to worry about even though four inches across, the second one is not something you would really want to nip you.  In the photo is it eating a camel cricket.
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This leaf-footed (or leaf-legged or leaf-kneed or flag-footed, etc.) bug looks to be in the genus Leptoglossus.  It is another true bug.
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Night walk along the Rio Cacao

5/28/2018

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The weather on day 1 was just so excellent that after dark I couldn't resist taking a short walk down along the Rio Cacao.

​These are known as Heliconia bugs, and are, not surprisingly, true bugs that live and feed almost exclusively on the plant Heliconia.  I see them every year in one patch along the river and they were there again this year.  Attractive bugs that are territorial on the plant and males will defend their turf.  If another bug approaches things can quickly escalate into a weird reverse wrestling match.  The two bugs turn around and grapple backwards using their strong rear legs.  Not sure how the winner is determined but something about who can jam their legs spines into the other one's belly the hardest and make them give up.
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Female Heliconia bug (Leptoscelis tricolor) from the FCRE
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Male heliconia bugs. You can tell the males from the females because males have very beefy hind legs for wrestling.
Tink frogs, so named because they make a very loud "tink" sound, are super common.  But we have a number of species of them that require handling the animal to ID them so I will just show a photo of one without guessing at which one it is.
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One of dozens of tink frogs along the Rio Cacao
Harvestman aren't really true spiders, but have those creepy 8 legs and sure act like spiders.  A tiny body and very long legs give these the common name "daddy long legs."
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Harvestman on a Piper leaf
Okay, so let's get real creepy to finish this up.  Another non-spider in the 8-legged category is the tail-less whip scorpion (Amblypygidae family).  Latin factoid:  amblypygid means "blunt butt" hence the "tail-less" part of the name.

​There are two genera of these here, Phrynus and Paraphrynus, but you have to put the front spiny part (the pedipalp) under a microscope just to see a little obscure almost spine in order to figure out which genus it is.  So no ID other than family on this character.

​The body is about two inches long, so not a particularly huge one but decent sized.  However the legs are very long and this animal would easily be 10 inches from leg tip to leg tip.
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Amblypygid on a tree trunk at the FCRE along the Rio Cacao
But these are WAY creepier looking that I can show in a full animal image, so here is a close up of the head area.  Those spines are used for spearing insect prey, and although it looks nasty is essentially harmless to humans.
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An adult tail-less whip scorpion (Amblypygidae) along the Rio Cacao
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Cross orb weaver spider (Araneus diadematus)

7/17/2017

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The cross orb weaver spider appears to be an import from Europe which has done very well in the New World (seen here in Centre County, Pennsylvania).  Generally identified by it's pretty orb web and the cross-like pattern of white blotches on the abdomen, it is a fairly common spider to see around out buildings and such.

​This spider spends most of its time at night in the center of the web, but also can do what this one is doing.  It is holding a line with its rear leg that leads to the center of the web.  Sort of like fishing, it is waiting for an insect to fly into the web and it will feel it on the line it has extended.  This allows the spider to be protected and off the web yet still know when it has prey in the web.
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Cross orb weaver spider from Centre County, Pennsylvania
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Firestone Center Science - Camera trapping animals and some spider work

6/3/2017

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While it is not my place to describe in great detail the science being done at the Firestone Center this summer, I can summarize things a bit and describe what we are doing in the field.  And what we were doing in the field today was going for a long walk across the entire Reserve placing camera traps as we went.

​It is so nice to see animals and pretty cool to hear animals, but the fact remains that there are many more animals on the property than we see or hear.  So to understand the whole wildlife picture we, literally, take pictures.

​Camera traps are just cameras that are triggered with a sensor when an animal walks by, taking either still photos or video of the animal.  These images can then be looked at on a computer and most often the species of animal can be determined.

​Placing cameras in locations likely to have animals moving through is key, and here are Leta Ames and Sara Freimuth placing a camera trap along the Firestone Center's border with the Hacienda Baru's property (old growth forest).  Lots of very cool animals come onto the FCRE from this large old forest, so having a camera trap here could score something nice.
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Leta and Sara position a camera trap on the FCRE border with the Hacienda Baru
So, lots of camera traps are out there just waiting to record the wildlife.  And of course, somewhat humorously, they will record us going by as well as we struggle up the hill in the hot sun, or pouring rain as the case may be.

​A second science project relates to a web-making spider here, and so two students are keen to find and start seriously looking at these spiders and their webs.  While setting up the camera traps we were able to locate a couple webs.  And oh dear, the first one was...
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Gabriela Ochoa knee deep in water in calf-high boots to measure a spider and its web
So instead of some web along a dry road, the first study spider was over water and I will let you know that the pond is quite deep and another step forward she would have been waist deep.

​Well, the next one had to be easier, right...
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Using cheer techniques and balance Sabrina Wu is elevated to measure a spider and web well off the ground. Gabriela sits and smiles in the background
So much fun, but only so much time.  We had to head down the hill and figure out a late lunch and get on to other work.  But we were not in so much of a hurry that we didn't still look for spiders and set up camera traps.  And some of the wild things we saw walking back down the hill...
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Capuchin monkey in the bamboo
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Hive of honey-making stingless bees, a no-pain photo!
And finally, a very striking-looking tortoise beetle.  But not one I have seen before here at the FCRE and in the time available have not been able to identify.  Beautiful animal and I will update this post with a species if and when I can figure this gem out.
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Unidentified tortoise beetle with striking neon colors
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Southern black widow spider (Latrodectus mactans)

5/24/2017

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Another beautiful animal from right near where I was sitting tonight, but this time only about 15 feet away.  Amelia Goebel was working with me and she spotted this one, a southern black widow spider (Latrodectus mactans) with a web and burrow.

​These spiders are fairly venomous, so some care was needed not to touch the web when photographing it as it would think a finger tapping the web would be prey and might shoot over for a bite. 

​These spiders make webs, but are not orb weavers so the web is more of a scatter than the classic orb.  Normally they hang upside down and the classic red hourglass is visible on their belly, but this photo is the top of the spider sitting on the web just above it's burrow hole and shows the nice top pattern.
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Southern black widow spider (Latrodectus mactans) on the web above the burrow
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The spider and the fly

6/25/2016

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Flies are very common to see on daisies.
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Long-legged fly on a daisy
And if you look a bit more closely, crab spiders are also common on daisies.
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Crab spider with only six legs on a daisy
And sometimes, both are on the same flower, and we can only guess what comes next.
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Somewhat camouflaged crab spider waiting for the fly to get a bit closer
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Bit of wildlife from the Firestone Reserve

5/31/2016

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Hiking up the trail to do some trail work this morning we found this underfoot...
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An elegant littersnake (Rhadinaea decorate) was spotted after the first two students walked right by it
And coming down the trail later it was all about monkeys
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White-faced capuchin monkey in the bamboo
And since I tend to post lots of creepy crawlies, here is a pic of major cuteness
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That little baby monkey peering over mom's back was adorable
Now back to the usual programming...
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One of the bird spiders. I'm thinking this is Sericopelma melanotarsum
And some birds to finish up for now
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A great kiskadee
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Female black-hooded antshrike
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