Endangered Species Friday: Solenodon paradoxus
This Friday’s (Endangered Species Post) E.S.P, I touch up again on the Hispaniolan Solenodon, scientifically identified as Solenondon paradoxus. Image credit: Mr Jose Nunez-Mino. My reasons for re-documenting on this species is primarily due to my belief that extinction is now most certainly imminent. Therefore for that reason I think its critical that we all make as much noise as possible for this little one due to is importance within the theater of conservation, and because its one of very few mammals that do actually host a venomous side to them.
Written by Dr Jose C. Depre; Botanical and Conservation Scientist.
Solenondon paradoxus was identified back in 1883 by Dr Johann Friedrich von Brandt (25 May 1802 – 15 July 1879) was a German naturalist. Brandt was born in Jüterbog and educated at a gymnasium in Wittenberg and the University of Berlin. In 1831 he was appointed director of the Zoological Department at the St Petersburg Academy of Sciences, where he published in Russian. Brandt encouraged the collection of native animals, many of which were not represented in the museum. Many specimens began to arrive from the expeditions of Severtzov, Przhevalsky, Middendorff, Schrenck and Gustav Radde.
Listed as (endangered) the species is endemic to the Dominican Republic; Haiti. Back in 1965 the species was re-located and reassessed of which scientists agreed the species ‘required watching due to concerns relating to low population levels’. Unfortunately, and despite the species then being known as severely threatened, from 1982-1996 the Solenondon paradoxus was re-listed as (endangered), now nearing almost complete extinction within the wild. It is without a doubt that we may be seeing this stunning “slotted tooth mammal” extinct within the next two to three years. The name Solenodon means ‘slotted tooth’ of which this insectivorous mammalian is known to be (venomous).
Population levels within the wild have been identified as (severely fragmented), and a population decrease within the species native wild has been ongoing since the early 1980’s, the mammal-like-shrew is considered to be extremely rare. Furthermore within Haiti the species “could be considered as critically endangered” due to an isolated population that covers only 100 kilometers square. Habit loss and persecution are the primary threats associated with the species.
The Haitian solenodon as the species is commonly known to the locals resides mainly next to plantations, forest and brush country. The species leads a mainly nocturnal life where it hides among rock clefts and under large stones, dark caves or hollow trees. Diet atypically consists of insects, but mainly spiders which the species digs from the ground and leaf litter. Small frogs and reptiles are also known to be part of the mammals diet. Haitian solenodon will use its long snout to sniff out food even buried deep into the ground then its powerful claws to locate food via burrowing which are about 2-4cms long, a venom will if required be administered to much larger prey.
The species is relatively social and does not live a solitary life, its been noted that the species prefers to live within groups of 5-8 within underground burrows, which is almost similar to the European moles behavior. Gestating females will normally give birth to 1-2 young and no more, young will always be born within the main family burrow. Young will remain with their mother for approximately seven to eight months, from which after maturity they are left to fend for themselves, however its been documented that the young and parents will ‘sometimes socialize and live together’.
Image credit: Mr Jorge Brocca
Currently under Dominican Republic law the species is protected under the General Environmental Law of 64-00. A recovery plan was published back in 1992 aimed at improving surveys, and management of the National Park Pic Macaya followed up with educational plans to help reduce species populations decline. A further implementation within the protection plan was to decrease exotic animal sales of the mammal and address these main issues wildly over the animals range.
Unfortunately since 1992 nothing “hard hitting” has been put into practice, and its quite likely that should anyone of the actions now be played out - its most likely to have no affect whatsoever due to the species now bordering complete extinction within the wild. However I myself do believe that we can only but try create as much noise as possible, applying pressure where needed thus forcing the Haitian Department of Environment, and Government to now protect this specie and implement whatever actions necessary to preserve this mammalian and its current habitat.
The most significant threat to this species appears to be the continuing demise of its forest habitat and predation by introduced rats, mongoose, cats and dogs, especially in the vicinity of human settlements. In Haiti persecution and hunting for food is a major threat, and there is devastating habitat destruction also occurring.
Despite the fact humans and other predators prey on the animal, and the fact this animal is rather small, Solenondon paradoxus does indeed pack a small “unknown venomous punch”, and you’d not really want to be bitten by this little one. I cannot emphasize the importance of wearing “protective clothing in the way of gloves” should you come into contact with this animal. Venom is administered in more or less the same manner as snakes administer their venom (not poison). Please note there is a very big difference between (venom and poison).
The solenodon is particularly fascinating because it delivers its poison just as a snake does—using its teeth as a syringe to inject venom into its target. Not a lot is known about these unusual mammals. There are only two solenodon species: One lives on Cuba and the other on Hispaniola (home to Haiti and the Dominican Republic). At night when the species goes in search of food venom would typically be administered to more larger prey such as frogs, and smaller reptilians that the animal also feeds on, despite the animals diet mainly consisting of insects. While the venom is not “considered dangerous to humans” there is actually no hard hitting evidence that its venom is or isn’t dangerous.
The reason I state that, is because most handlers within zoological gardens do actually wear gloves in order to protect themselves from being bitten. So theoretically speaking it would be considered safe to say that while little is known about the animals venomous side - please wear gloves should you come into contact with the animal until more data can be located on the animals venom Etc.
There remains no current data in relation to how many mature and non-mature solenodon individuals there are within the wild, furthermore little is known about life expectancy, however locals have stated local populations can/have lived for up-to 5-7 years.
I am unsure what the future holds for this rather peculiar animal, its one of very few mammals that do actually have the ability to administer a venomous bite via its salivary glands too. The Hispaniolan solenodon represents a remarkable amount of unique evolutionary history, diverging from other living mammal groups some 75 million years ago and before the extinction of the dinosaurs. Conservation efforts don’t seem to be improving the animals population levels, however I am told that conservation actions have been planned. Will they work though now is another story.
The clock is ticking fast for this little one…While I want to believe that we can do something I do believe that its probably too late. Therefore I predict that my next document on this species will be informing the general public of its wild extinction. That would be considered quite sad to be fair regarding my look at things. Check out the video below.
“EXTINCTION IS IMMINENT”
Thank you for reading.
Dr Jose C. Depre. PhD. MEnvSc. BSc(Hons) Botany, PhD(NeuroSci) D.V.M.
Environmental, Botanical and Human Science.
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Endangered Species Friday: Hispaniolan Solenodon
This Fridays endangered species article we focus on a very peculiar looking animal scientifically named as the Hispaniolan Solenodon pictured above.
Listed as (endangered) the species is endemic to the Dominican Republic and Haiti of which was identified back in 1833 by Dr Johann Friedrich von Brandt (25 May 1802 – 15 July 1879) was a German naturalist.
Dr Brandt was born in Jüterbog and educated at a gymnasium in Wittenberg and the University of Berlin. In 1831 he was appointed director of the Zoological Department at the St Petersburg Academy of Sciences, where he published in Russian. Brandt encouraged the collection of native animals, many of which were not represented in the museum. Many specimens began to arrive from the expeditions of Severtzov, Przhevalsky, Middendorff, Schrenck and Gustav Radde.
At first glance one would be led to believe that the H. solenodon was a type of rodent. The species is in fact a a type of shrew in the family of Solenodontidae identified by Dr Gill in 1872. While they may posses the same characteristics as rodents they do not fall into the super-class of Euarchontoglires that rodents do.
H. solenodon has been classified as (endangered) since early 1982 up to 1996 when a more in depth census undertaken on the species failed to locate any significant evidence of species population increases. To date 29th May 2015 the H. solenodon commonly named as the Haitian Solenodon or Hispaniolan Solenodon remains endangered and is nearing extinction level.
Solenodons which in (Latin means - slotted tooth) are not a creature to be underestimated either as of their pretty nasty venomous bite that does pack a rather large punch. Solenodons are one of very few species of small “rodent like shrews” that’s bite is much worse than its bark.
The solenodon is particularly fascinating because it delivers its poison just as a snake does—using its teeth as a syringe to inject venom into its target. Not a lot is known about these unusual mammals. There are only two solenodon species: One lives on Cuba and the other on Hispaniola (home to Haiti and the Dominican Republic). At night, they dig in the dirt with their Pinocchio snouts and long claws, looking for grub and waiting to disarm their prey—insects, worms, snails and small frogs and reptiles—with a toxic bite.
While their venom is not dangerous to humans we do advise that if handling to please wear a good protective layer of gloves. There have been no reports of humans falling ill or dying from being bitten by a solenodon.
The Haitian solenodon is found in forests and brush country, as well as around plantations. It is mainly nocturnal, hiding during the day in rock clefts, hollow trees, or burrows which it excavates itself. Its diet includes insects and spiders found in soil and leaf litter. Solenodons obtain food by rooting in the ground with their snouts and by tearing into rotten logs and trees with their foreclaws. This species is relatively social, and up to eight individuals may inhabit the same burrow. Litter size is 1 or 2 young. The young are born in a nesting burrow. Young solenodons remain with their mother for several months, which is exceptionally long for insectivores.
Population trends are unfortunately decreasing of which its major threats are listed below for your immediate attention.
The most significant threat to this species appears to be the continuing demise of its forest habitat and predation by introduced rats, mongoose, cats and dogs, especially in the vicinity of settlements. In Haiti persecution and hunting for food (Samuel Turvey pers. comm.) is a threat, and there is devastating habitat destruction also occurring.
Please view the video below for further information.
Thank you for reading
Dr Jose C. Depre
Chief Environmental & Botanical Officer.
International Animal Rescue Foundation Africa.