HERPING IN VENEZUELA
Andes, Llanos and Maracaibo basin. Herpetological Survey (23 Days)

Orinoco CrocodyleDay 1. Caracas - Mérida.
Arrival at Maiquetía International Airport, Caracas. Transfer to Mérida. Reception by Tour Leader. Hotel registration. Personal introduction of tourists and guides with comments on respective interest. Slide show of sites and species that you will most probably get to know in the survey.

Day 2. Mérida - Maracaibo lake.
The team will head to southern area of Maracaibo lake, the largest lake in South America and main axis of oil industry in Venezuela. We will navigate within mangrove coves, where there is a dense population of red howler monkey (Alouatta senicula). Capuchin monkeys (Cebus) are also possible to observe. A varied array of bird communities are also conspicuous, including Amazon Parrots, Chestnut fronted Macaws, large Rhamphastos toucans, and one of the rarest birds in Venezuela, the Northern Screamer(Chauna chavaria). It is quite a guarantee to see estuarine Dolphins(Sotalia fluviatilis) playing close to us. Even much rarer, but not impossible would be to see the Caribbean Manatee (Trichechus manatus), one of the most endangered mammals in the country. Green Iguanas(Iguana iguana) are going to be faithful companions during all visits to the lowlands. At night, in an additional boat trip we will see how nocturnal life takes over. This is time to see Caimans(Caiman crocodylus fuscus), the Mangrove Boa (Corallus ruschenbergerii), Boa constrictor and endemic frogs as Hyla vigilans.

Day 3. Maracaibo Lake basin.
We will go to an Hacienda in the savanna, used primarily for raising cattle. In the myriad lagoons, we will be able to easily see Yellow Llanos Tree Frogtwo species of freshwater turtles, one endemic to Maracaibo basin, Rhinoclemys diademata, and the other that is widespread in the Neotropics, Kinosternon scorpioides. A further species is also endemic to a localized lagoon area nearby, but it is a rare sight, Phrynops zuliae. In the savanna there is also Red footed Tortoise, Geochelone carbonaria, but it is progressively becoming rarer due to uncontrolled human poaching. Water Snakes in the genus Helicops as well as other serpents typical of the savanna are easy to observe: Mastigodryas, Liophis melanotus, Spilotes pullatus, Oxybelis aeneus, Imantodes cenchoa, Leptodeira annulata, as well as Iguanas, Ameiva and Cnemidophorus lizards, diurnal Gonatodes Geckos... among many other reptiles. At night, and around human housings, you can be surprised to see the largest Gecko in America, Thecadactylus rapicauda, and a variety of Anurans, Bufo marinus, B. granulosus, Hyla crepitans, H. microcephala, Phrynohyas venulosa, Leptodactylus bolivianus, Pseudopaludicola pusilla, the endemic Pipa parva, as well as adults and huge tadpoles of Pseudis paradoxa. The zone is also home of other hard to find amphibians, like Ceratophrys calcarata, and the Caecilian Nectocaecilia haydeeae.

Day 4. Maracaibo basin-Andes.
Now it will be time to survey the aluvial zone of the Chama river, where we could find Basilisks lizards (Basiliscus basiliscus), and perhaps Cocodrylus acutus. Perhaps this is also the finest place to see South American otter, (Lontra longicaudis). Afterwards, we will move to an important migratory pass for birds that come from or return to North America, where it is possible to see, at the appropriate time, thousands of birds belonging to hundreds of species. This is the habitat of one of the largest and most beautiful Tarantula species in the Neotropics, (Xenestis monstrosa). Later, we will ascend to the Andes, where we will witness the transition into the cloud forest at 1400 metres. At night we will search for frogs like Hyla minuta, H. luteoocellata, H. crepitans; and Atractus snakes. With some luck we will see Onycophorans, Peripatus the living arthropod fossil, under logs, stones and debris.

Day 5. Andes.
In the morning, we will continue herping. Back to Mérida, we will stop in a Colonial Hacienda, where we will learn ancestral techniques for the processing of coffee, a long time important economical item of the region. Riding back into the Andes, through the arid valley of the Chama river, we will stop to see local herps, within the forest of huge Candlestick Cacti. There, Micrurus meridensis is a worthful finding, although Drymarchon corais melanurus, Pseudoboa neuwiedii, Crotalus sp., Green Iguanas, Ameiva bifrontata and Cnemidophorus lizards make up the pretty fauna of the region. Also, this is a site where Tamandua anteater (Tamandua mexicana) is not particularly rare to see. Finally, we will overnight at the peaceful and picturesque Mérida, the Andean capital city lying below perennial snow capped mountain peaks surpassing 5000 metres (15000 ft).

Day 6. Andes
Visit to Teleférico de Mérida, the longest (12 ½ Kms) and highest (4765 m) cable car in the world. During the ascent, it is possible to see four different types of ecosystems:
 1. Cloud forest, 2. Dwarf high altitude forest, 3. Páramo, and 4. Andean nival belt. Once at the summits, we will trek for Páramo recognition. Back to Mérida. Off duty afternoon for free-will activities (shopping, cinema, salsa and merengue dancing ...). Facultative herping in a nearby pristine cloud forest, where local species are worthy: Hyla jahni, Eleutherodactylus vanadisae, Gastrotheca nicefori and some glass-frogs (Centrolene and Hyalinobatrachium).

Day 7. Andes
 Depart to explore the Andean cloud forest, habitat of Andean Salamander Bolitoglossa orestes, among other herps. We will continue to Páramo environment, where walking silently alongside enchanted and beautiful glacial lagoons, where Páramo Rabbits (Sylvilagus brasiliensis meridanus) and Andean deer (Odocoileus goudotti) thrive. This is the habitat of frogs highly adapted to cold weather, namely Eleutherodactylus ginesi (an evolutionary convergent of high tepuian Bufonid in the genus Oreophrynella), E. lancinii, Colostethus leopardalis and Atelopus mucubajiensis. This last species, as well as all Venezuelan Harlequin Toads, has suffered severe population declines, to the point, where no one has reported any living animal in the past five years, thus scientific community fears that this species has become extinct. One of our goals will be to systematically survey the area, with the hope to rediscover and report it.

Day 8. Andes.Elachistocleis ovalis
We will continue our exploration in the Páramo, paying particular attention to the decomposing matter of Espeletias (Rosette-like bush with oblong leafs covered with plenty cotton-like coating, native to high altitude Andes in Venezuela south to Ecuador). Within these, several amphibians takes refugee, and also Microteiids Anadia lizards. Later in the day, we will take a chance to visit the Andean Condor (Vultur gryphus) reintroduction and conservation facilities, and we will explore its habitat to admire the magnificent and majestic flight of the largest flying bird of the world.

Day 9. Andes
During the morning we will freshen up ourselves to recover energies, while bathing in a hot spring with magnificent views. Back on duty, torrents rivers will flank us along the road, stopping to see an endangered bird, the Torrent Duck (Merganetta armata colombiana). A splendid cloud forest will be the stage to see one of the Neotropical most magnificent spectacle, the nuptial display of fiery red Andean Cock-of-the Rock (Rupicola peruviana). Herps are also abundant here and it is possible to find Micrurus mipartitus, Erythroplamprus bizona, Lampropeltis triangulum andesina... We will witness the abundance of the diurnal dendrobatid Mannophryne collaris.

Day 10. Andes, Llanos
Visit to a natural pool for bathing, but the place is magnificent for diurnal herps. For those who looking for tougher adventures, there is an optional rafting trip (not included in price). Our landscape changes from mountains to flat lands, visiting again savanna realms, but drastically different from the previous. This is the show piece of Los Llanos, an extensive floodable territory of nearly 180.000 Km2 (in Venezuela only, since it extends into Colombia). Some anurans are very abundant, notably Bufo marinus, B. granulosus, Pleurodema brachyops, H. microcephala, Leptodactylus macrosternum...

Day 11. Andes
We will ascent back again the Andes through a different gorge, reaching the Páramo, this time in search of Eleutherodactylus boconoensis, Colostethus humilis and several Centrolenids. A Colonial town will receive us for overnight.

Day 12. Andes
A survey of the type locality of Aromobates nocturnus will offer the opportunity to see the largest Dendrobatid known to date (Myers et al., 1991). This is unique among this anuran family since it is nocturnal, aquatic, large, spells out a strong odor, and has developed webbing on the rear limbs’ feet. It is thought that this species is facing similar problems as other declining amphibians, so we will try to study this case. We will search during the day and night.

Day 13. Andes
We will continue to the terra typical of Atelopus chrysocorallus, perhaps the most striking species in the genus from Venezuela (green with yellow and red), which is also facing threatening of extinction. We will search at daytime. Optional frogging at night.

Day 14-16. Western Llanos.
Once again to the lowlands, we will head to a floodable rain forest, where anuran diversity is high (more than 25 species), highlighted by Phyllomedusa tarsius, P. hypocondryalis, Hyla lanciformis, Hyla boans, Lithodytes lineatus, Elachistocleis ovalis, Pipa pipa; and also of Amazonian-like reptiles such as Corallus hortulanus, C. caninus, Boa constritor, Epicrates cenchria maurus, several Colubrids, Bothrops venezuelensis and Coral snakes. This area deserves at least two days for intense exploring.

Day 17. Llanos
We will be on the road and stop at an Hato (Cattle Ranch) where we will rest and herp at night.

Day 18-22. Llanos
The Llanos is one of South America's most animal - concentrated habitat, and it is comparable to some places in Africa (although lacking the crowded populations of large mammals). We will share our duties with the Llaneros, a sort of Venezuelan Cowboys. We will horse ride, and perhaps help them with their day to day affairs, like herding cattle or even to count Capybaras. Our fauna companions will be the numerous species of aquatic and raptor bird life, sometimes having visits by approachable Giant Anteaters (Myrmecophaga tridactyla). In some shallow lagoons, we will be able to see at night the glowing eyes of Spectacled Caymans (Caiman c. crocodylus) with the aid of flashlights. Several chelonians are also found within rivers and marshes, including the  bizarre Mata-Mata (Chelus fimbriatus), Sidenecks (Podocnemis vogli and P. unifilis) and Arraus (P. expansa) which were common in the past. The largest and most impressive snake lives here, the Anaconda (Eunectes murinus gigas). We will search and manipulate them and take magnificent photographs. During some spare time, fishing is plenty and delightful, having the opportunity to take some for meal, including bass (Cichla), catfish (Siluridae) and fierce piranha (Serrasalmus). Rivers are home of freshwater Sting Rays (Potamotrygon) and Electric Eels (Electrophorus electricus), which local inhabitants fear far more than piranhas. On boat rides, colorful birds are a comon sight, of which Scarlet Ibises and Rose Spoonbills will be a sure bet.  The legendary and playful river dolphins (Inia geoffrensis) will be periodical companions, and with some luck, the shout of Giant Otters (Pteronura brasiliensis) will put some noise in the air. Other animals that can be seen with relative ease are Howlers (Alouatta), Capucin monkeys (Cebus), Agoutis (Dasyprocta), Arboreal Anteaters (Tamandua tetradactyla), Foxes (Cerdocyon thous), White Tailed Deers (Odocoileus virginianus), Chgüires (Hydrochoerus hydrochaeris), and with luck, Ocelots (Leopardus pardalis) or Yaguaroundi (Herpailurus yaguarondi), and even more a Puma (Puma concolor) or Jaguar (Panthera onca).

Day 23. Llanos-Caracas-Origin
Farewell meeting. Flight to Caracas and origin.

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ARASSARI TREK  -  V.T. 2256
Raquel & Tom Evenou
Final calle 24, 8-301.  Mérida - Venezuela
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