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Ranitomeya Summersi
''Ranitomeya summersi'', sometimes referred to as Summers' poison frog, is a species of poison dart frogs found in the central Huallaga River drainage and adjacent Cordillera Azul National Park in central Peru. Before 2008, the species was considered a subspecies of ''Ranitomeya fantastica''. The IUCN considers it an endangered species because of limited habitat range, habitat loss, and collection for the pet trade. They lay their eggs primarily in ''Dieffenbachia'' plants and in holes in trees. Morphology ''Ranitomeya summersi'' is one of the larger species of poison dart frogs. It has an orange and black banded pattern and a large snout to vent length. Males and females exhibit no sexual dimorphism in snout to vent length, exhibiting a range from 15.5 mm to 20.4 mm. This species possesses a black marking over the eyes extending past the tympanum giving them the appearance of a mask. The species is a Batesian mimicry of Ranitomeya Variabilis ''Ranitomeya'' is a genus of da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poison Dart Frog
Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to tropical Central and South America. These species are diurnal and often have brightly colored bodies. This bright coloration is correlated with the toxicity of the species, making them aposematic. Some species of the family Dendrobatidae exhibit extremely bright coloration along with high toxicity, while others have cryptic coloration with minimal to no amount of observed toxicity. The species that have great toxicity derive this feature from their diet of ants, mites and termites. However, other species that exhibit cryptic coloration, and low to no amounts of toxicity, eat a much larger variety of prey. Many species of this family are threatened due to human infrastructure encroaching on their habitats. These amphibians are often called "dart frogs" due to the Native Americans' use of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huallaga River
The Huallaga River is a tributary of the Marañón River, part of the Amazon Basin. Old names for this river include ''Guallaga'' and ''Rio de los Motilones''. The Huallaga is born on the slopes of the Andes in central Peru and joins the Marañón before the latter reaches the Ucayali River to form the Amazon. Its main affluents are the Monzón, Mayo, Biabo, Abiseo and Tocache rivers. Coca is grown in most of those valleys, which are also exposed to periodic floods. Description Although it runs for 700 miles (1,100 km), it remains unnavigable for the most part. For nearly its entire length the Huallaga is an impetuous torrent running through a succession of gorges. It has forty-two rapids (pongos) and it crosses the Andes, forming the Pongo de Aguirre gorge. From this point, from the Amazon, the Huallaga can be ascended by larger river boats (''lanchas'') to the port city of Yurimaguas, Loreto. Although there are no defined boundaries, the river is commonly divided into tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cordillera Azul National Park
Cordillera Azul National Park () is a protected area in Peru. It protects part of the Ucayali moist forests ecoregion. History In 1963, the Biavo-Cordillera Azul National Forest was established, spanning 2,178,000 hectares. In 1997, this area is declared as a forest for timber production, leaving it open to logging operations. However, in 1999, Red Ambiental Peruana (an alliance of several NGOs) and COPRI (the authority for rights for timber exploitation) conduct research in the area and agree to protect the northern part of the forest due to its high biodiversity. In 2000, the Cordillera Azul Reserved Zone is established on the mountainous part of the national forest, and a team from the Field Museum begins an assessment of the biodiversity in the area. Based on such assessment, the Peruvian Ministry of Agriculture recommends the area is protected as a national park. The Cordillera Azul National Park was established in 2001 during the tenure of president Valentín Paniagua. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranitomeya Fantastica
''Ranitomeya'' is a genus of dart poison frogs found in Panama and South America south to Peru and Brazil, possibly into Bolivia. Taxonomy In 2006 Grant ''et al.'' revised the systematics of poison dart frogs and placed many species formerly classified in the genera ''Dendrobates'', '' Minyobates'' and ''Phyllobates'' in ''Ranitomeya''. In 2011 Brown and colleagues, following other scientists who assumed the existence of two distinct clades in ''Ranitomeya'', erected the genus '' Andinobates'' for 12 species of ''Ranitomeya''. ''Ranitomeya'' and ''Andinobates'' frogs can be distinguished from those in genera such as ''Dendrobates'' in that they are generally smaller, have more than two colors, and seem to glitter if viewed from certain angles. ''Ranitomeya'' is widespread in the Amazon basin, whereas ''Andinobates'' species are found only in the northern Andes down to Central America. Description Adults measure no more than in snout–vent length and are typically brightly colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dieffenbachia
''Dieffenbachia'' , commonly known as dumb cane or leopard lily, is a genus of tropical flowering plants in the family Araceae. It is native to the New World Tropics from Mexico and the West Indies south to Argentina. Some species are widely cultivated as ornamental plants, especially as houseplants, and have become naturalized on a few tropical islands. ''Dieffenbachia'' is a perennial herbaceous plant with straight stem, simple and alternate leaves containing white spots and flecks, making it attractive as indoor foliage. Species in this genus are popular as houseplants because of their tolerance of shade. The English names, dumb cane and mother-in-law's tongue (also used for ''Sansevieria'' species) refer to the poisoning effect of raphides, which can cause temporary inability to speak. ''Dieffenbachia'' was named by Heinrich Wilhelm Schott, director of the Botanical Gardens in Vienna, to honor his head gardener Joseph Dieffenbach (1796–1863). Species The World Checklist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zimmerman's Poison Frog
''Ranitomeya variabilis'', formerly known as ''Dendrodates variabilis'', is a species of small poison dart frog distributed in northern Peru, along the eastern slope of Anes in the upper Rio Huallaga drainage basin. Its common name, Zimmerman’s poison frog, is named after Elke Zimmermann, a German zoologist who described the morph of this species and differentiated it from '' D. Ventrimaculatus''. The species was formerly considered to be synonymous with '' Ranitomeya ventrimaculata''. ''Ranitomeya variabilis'' usually has a bright yellow body with deep blue limbs, and black spotted or stripes across the ventral side of the body. The colors change in some geographic locations. ''R. variabilis'' has different mimicry relationships with two other species. Like other frogs in the same family, ''R. variabilis'' has toxic skin alkaloid which repels potential predators. ''R. variabilis'' are cannibalistic even as tadpoles, so adult male parents may allow tadpoles to jump on their ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranitomeya
''Ranitomeya'' is a genus of dart poison frogs found in Panama and South America south to Peru and Brazil, possibly into Bolivia. Taxonomy In 2006 Grant ''et al.'' revised the systematics of poison dart frogs and placed many species formerly classified in the genera ''Dendrobates'', '' Minyobates'' and ''Phyllobates'' in ''Ranitomeya''. In 2011 Brown and colleagues, following other scientists who assumed the existence of two distinct clades in ''Ranitomeya'', erected the genus '' Andinobates'' for 12 species of ''Ranitomeya''. ''Ranitomeya'' and ''Andinobates'' frogs can be distinguished from those in genera such as ''Dendrobates'' in that they are generally smaller, have more than two colors, and seem to glitter if viewed from certain angles. ''Ranitomeya'' is widespread in the Amazon basin, whereas ''Andinobates'' species are found only in the northern Andes down to Central America. Description Adults measure no more than in snout–vent length and are typically brightly colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Peru
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ... and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. ''Enidae, Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a Invasive species, non-indig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Peru
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of South America
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs is an ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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