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Old 08-31-2010, 02:23 AM
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Default Ranitomeya lamasi - Intermediate to Expert

Ranitomeya lamasi:
AKA: Dendrobates lamasi
Contributers: Corey Wickliffe (kerokero)
  • Difficulty: Intermediate (lowland morphs) to advanced (highland morphs)
  • Location & History: Wet forest in the provinces of Pasco and Huánuco, Peru. Described Morales, 1992.(1)

    Proposed taxonomic change to Ranitomeya lamasi (Grant, Frost, Caldwell, Gagliardo, Haddad, Kok, Means, Noonan, Schargel, and Wheeler, 2006)
  • Descriptions & Behavior: These frogs belong to the Thumbnail species group (proposed genus Ranitomeya) and the species as a whole can be split into two groups, Highland and Lowland. Both groups of populations show a species typical ventral yellow spot on the belly (contrasting with the blue to grey netting that continues from the legs) as well as a yellow spot on the throat. They also have tadpoles that have a characteristic yellow/gold marking on the nose that distinguishes these tadpoles from similar related species.

    Highland:
    'Standard' - These are rather large frogs (for thumbnails) with bright yellow longitudinal markings over black body (yellow about equal to greater in amount as the black), with bright powder blue legs marked with round, black spots. Pairs of these animals can take up to two years to successfully reproduce, even though they mature at a typical thumbnail age of 6-8 months (?). Their temperment depends on the individual and conditions, and varies from skittish to bold. This morph is for advanced keepers only due to general difficultly in successfully keeping and breeding this frog.

    Lowland: These morphs are smaller in size, have narrower stripes on the dorsal, are skittish to extremely shy frogs, reproduce easily in captivity and ease of care is intermediate - an excellent beginner thumbnail. These frogs are still known (incorrectly) as D. imitator 'Panguana' in Europe, and have also been attempted to be imported to the US under the idea that they were D. biolat.
    'Panguana' - Pinstripe yellow markings on the dorsal with grey legs with round, black spots.
    'Green-Legged Panguana' - Typical markings are basically the same as 'Panguana' lamasi, but vary in that the dorsal markings are not always straight and "clean", and the overall color on the frog is that of a 'Panguana' with a green wash over it... greenish yellow dorsal markings with greenish grey legs.
  • General Care:

    While not truely arboreal, they do seem to have a preference for tanks at least as tall as they are long/wide, or taller (vertically oriented tanks). While they do not use bromeliads in the wild for breeding, (2) their plant preferences are not feasible in our small tanks and bromeliads are a well accepted alternative. Leaf litter is also recomended, especially in tanks containing froglets, as it allows for populations of springtails to thrive in the tanks and cover for froglets once they morph.

    Feeding wise these frogs will thrive on a staple of FFs as their diet but will actively eat other feeder insects as well, especially those that move around the top levels of the tank. The smaller Lowland morphs prefer a staple of melanogaster FFs, while the larger highland 'Standard' can take hydei as well.
  • Breeding & tadpole Care:

    Clutches of eggs range in number from 2-? eggs, and are usually laid on a vertical surface (3) and many hobbyests have had success with them laying in film canisters (direction?) as well as depositing tadpoles in water filled film canisters, other containers, and bromeliads (although preference in the wild is for bamboo in 'Standard' and Heliconia and Xanthosoma in the Lowland populations) (2). Tadpoles are transported by the males (3).

    Tadpoles can be distinguished from other thumbnail tadpoles by the bright yellow/gold nose marking they develop a few days after hatching and the rest of their coloration also develops comparatively early on in development (compared to other PDFs that develop froglet coloration just before morphing)(3). If left in the tank, they will feed off bacterial slime in their container, insects that have fallen in the water, detritus, and eggs provided by a female. They can also be pulled and raised outside of the tank, as they are faculative eggfeeders, rather than obligate eggfeeders which need to be cared for by their parents to survive. Tadpoles require an omnivorous diet (3) such as tropical fish flakes and Frog & Tadpoles Bites, and tadpole diets with a majority of algae in them should be avioded.

    Metamorphs morph out almost half the size of the parents, tend to be rather hardy, and eat melanogaster FFs straight out of the water. Springtails are enjoyed by these frogs from metamorph to adults, but are not required to start a froglets as in some related species.
  • Pictures:
    Standard Lamasi:





    Standard Lamasi Morphing:


    Panguana Lamasi:




    Green Legged Lamasi:


References:
(1) The American Museam of Natural History Amphibian Species Database v4.0 Online
(2) Dendrobates.org
(3) BDG Archive - Dendrobates lamasi with assistance from Evan Twomey


If you would like to see any updates or modifications to this care sheet please let myself or a moderator know.

Last Updated: 1/16/2010
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Old 09-03-2010, 02:06 AM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

some info on the 'green' lamasi brought in by UE last year. these are also called 'lower ucayali'.

this populations is the size of the highland population and i would consider them to be an advanced species based on breeding difficulty. i originally had a 2.1 trio in a 26 gal. but one of the males never came out and eventually got skinny before i seperated him. therefore i would recommend keeping them as a pair. all of the breeding has taken place on the side of the tank and on brom leaves, and there is usually only 1-2 eggs. out of maybe 20 clutches that all yeilded atleast 1 tadpole over the last 8 months, i have found 4 froglets. the first 2 were runts that only made it a couple days, but the other 2 were healthy. the froglets start out very green and as they age get some yellow coloring on their sides, with green remaining on the top. they are big enough to take melanos after morphing.

pictures of my pair







froglets


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Old 04-17-2011, 06:17 AM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

After my success in my standard lamasi overwhelming me in eggs and now froglets I decided to try these guys. I just picked up my 1.1.2 proven group from Andy today. It is my understanding that theses guys can throw some interesting froglets. I know Mark got white froglets from his group and have heard Mark has gotten whites and even gotten some pinks...not 100% sure though. Anyone else seen crazy froglets morphing out?

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Originally Posted by thedude View Post
some info on the 'green' lamasi brought in by UE last year. these are also called 'lower ucayali'.

this populations is the size of the highland population and i would consider them to be an advanced species based on breeding difficulty. i originally had a 2.1 trio in a 26 gal. but one of the males never came out and eventually got skinny before i seperated him. therefore i would recommend keeping them as a pair. all of the breeding has taken place on the side of the tank and on brom leaves, and there is usually only 1-2 eggs. out of maybe 20 clutches that all yeilded atleast 1 tadpole over the last 8 months, i have found 4 froglets. the first 2 were runts that only made it a couple days, but the other 2 were healthy. the froglets start out very green and as they age get some yellow coloring on their sides, with green remaining on the top. they are big enough to take melanos after morphing.

pictures of my pair







froglets


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Old 04-18-2011, 01:33 AM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

Quote:
Originally Posted by rcteem View Post
After my success in my standard lamasi overwhelming me in eggs and now froglets I decided to try these guys. I just picked up my 1.1.2 proven group from Andy today. It is my understanding that theses guys can throw some interesting froglets. I know Mark got white froglets from his group and have heard Mark has gotten whites and even gotten some pinks...not 100% sure though. Anyone else seen crazy froglets morphing out?
interesting, i havent heard or seen anything like that. ive had some odd shades of green and yellow come out on them, and white legs. but not anything like that!
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Old 04-18-2011, 01:45 AM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

Here is a picture of what I was talking about



This is a froglet that came from Mark Pulawski when he was working with them. He had more than one of these come out too!!!
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Old 06-03-2016, 11:58 PM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

Hello Sirensis Highland (Standard Lamasi) Fans!
The Sirensis Highlands have been in my sights for a while, and, because of their history, I recently decided to visit the Tingo Maria locality to see if they really were extirpated. Josh Richards was my able guide, and, so, the two of us went on a fantastic trip into the cloud forest. This message tells about what we found.

Sadly, I have to report that we did not find any Sirensis. And, local villagers reported they had not seen any in years. None the less, we hired a local to take us out to look and see what we would find. We were able to find juvenile Ameerega Silverstonei throughout the valley. They truly are a stunning frog in the wild. However, the story of the villagers that are entrusted with their care is sad. “The Germans” had been through a month before buying 20 frogs at $10 each, which explains why we only saw juveniles. When we asked about the Sirensis, our guide told us of how he would cut the bottoms off of the bromeliads to make it easier to pull them apart and find the frogs. So, what he was telling us was that not only did they hunt the Sirensis to extirpation, but they destroyed their breeding sites as they did. It is easy to project that the Silverstonei could go the same way…

When I started the trip, I had grandiose ideas of a repatriation program led by the hobby. But, after meeting the villagers, it is obvious that this simply will not work, as they do not value the wildlife in their area. This might sound like a hopeless case. But, I’m not certain that it is. When you observe the general area it is obvious that there is a lot of virgin forest along the opposing ravine. In fact, the terrain in the vicinity is steep canyons that would require mountaineering gear to climb and penetrate. If anyone ever become serious about determining the true status of this frog, I suspect it will take a mountaineering team to accomplish.

The type description says the Sirensis live in Bamboo, which I believe to be half of the truth. The villagers advised that they had pulled bromeliads apart to find them. So, I believe bromeliads, plus Xanthoma, and other plants with appropriate axils are a part of their breeding cycle. One thing that is true is that Bamboo in the area is farmed for structural uses. This is because large trees typically used for structure don’t grow on the steep hillsides. When the bamboo stalk is harvested, the cup remaining on the cut stalk is an ideal tadpole deposition site. So, I believe the pre-human frog population naturally assimilated to the area once humans arrived and started cutting/farming the bamboo. If there was a way to train the locals not to bother the frogs, it would still be ideal.

Aside from the disappointing news about the Sirensis, the area was amazing, and Josh was able to point out highlights that are easy to drive past. Because we were organized for back packing and to a lesser extent, mountaineering, we were able to get off the road and explore the jungle. For example, the Elvin cloud forest was an area we explored as we crossed over the ridges of the hills. These hilltops have a constant blowing cool and moist wind. I’ve never seen so many species of orchids on trees. Literally, a new species every foot or two on the moss covered trees. It was also easy to see why we screw up orchid potting mixes (at least for these types of orchids), as their roots literally grow in the live moss. I never see fungus growing on moss. So, there must be some kind of aseptic relationship between the orchids and the moss, in addition to being a moist and airy medium that catches mineral particles in the wind.

To end the trip, Josh made me a slide show that can be played on Youtube. I hope you enjoy it, it was an amazing trip, and I hope everyone in the hobby gets to take a trip like this along the way.

Bill

https://www.youtube.com/watch?v=ZytFsNA-26c
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Old 01-26-2017, 02:37 PM
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Beautiful frogs. I will put these guys on my watch list for sure.
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Old 01-27-2017, 12:23 AM
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Cool video! I was sold right up until the spiders

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Old 03-13-2019, 06:26 PM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

I saw ideal temperature ranges listed on the R. imitator species sheet, but I don't see one listed here. Is it just assumed that the ideal temperature range is the same. I would love to see this updated with that information.

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Old 03-14-2019, 12:29 AM
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Default Re: Ranitomeya lamasi - Intermediate to Expert

Quote:
Originally Posted by kenya_1977 View Post
I saw ideal temperature ranges listed on the R. imitator species sheet, but I don't see one listed here. Is it just assumed that the ideal temperature range is the same. I would love to see this updated with that information.

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And this might be nitpicking but also the current scientific name.
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