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Black-capped Tanager
The black-capped tanager (''Stilpnia heinei'') is one of the many species of Neotropical bird in the family Thraupidae. It lives in mountains of Ecuador, Colombia and Venezuela year-round. This bird can often be found in open landscapes, alone or in pairs, hiding under branches of trees and bushes. Its natural habitats are subtropical or tropical moist montane forests and heavily degraded former forest. Taxonomy and nomenclature The black-capped tanager was described in 1851, from a type specimen collected in Colombia. It is a member of the genus '' Stilpnia'', in the tanager family, Thraupidae. In Spanish, it is locally called "Tangara gorrinegra" or "Tangara coroninegra". The black-capped tanager is a songbird (Passeriformes). The tanagers are a very diverse group with over 300 species that account for more than 10% of all birds in the Neotropics. The genus name ''Stilpnia'' was proposed in 2016 instead of ''Tangara'' for ''T. heinei'' in order to match the phylogenetic relatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the International Union for Conservation of Nature, IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to International Unio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Jay
The green jay (''Cyanocorax luxuosus'') is a species of the New World jays, and is found in Central America. Adults are about long and variable in colour across their range; they usually have blue and black heads, green wings and mantle, bluish-green tails, black bills, yellow or brown eye rings, and dark legs. The basic diet consists of arthropods, vertebrates, seeds, and fruit. The nest is usually built in a thorny bush; the female incubates the clutch of three to five eggs. This is a common species of jay with a wide range and the International Union for Conservation of Nature has rated its conservation status as being of "least concern". Taxonomy Some ornithologists treat the green jay as conspecific with the Inca jay of the Andes, with ''C. yncas luxuosus'' as the green jay and ''C. yncas yncas'' as the Inca jay. Description Green jays are in length. Weight ranges from . They have feathers of yellowish-white with blue tips on the top of the head, cheeks and nape, though s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecropia Peltata
''Cecropia peltata'' is a fast-growing tree in the genus ''Cecropia''. Common names include trumpet tree, trumpet-bush, bacano and snakewood. It is listed as one of the world's 100 worst invasive alien species. Description ''Cecropia peltata'' is a fast-growing tree, normally reaching , but occasionally growing up to tall. The leaves are large – in length and width, but more commonly about 20 × and palmately divided into 7–11 (but generally 8–10) lobed. The upper surfaces of the leaves are scaled, while the lower surfaces are covered with minute hair, interspersed with longer ones. The petioles are generally long, while the branches are green and covered with short, stiff hairs. Like other members of the genus, ''C. peltata'' is dioecious – there are separate male and female plants. Male flowers, which are long, are borne in spikes long. The male inflorescence is enclosed in a spathe which splits open and drops off once the anthers mature. The female flowers are b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Competition
Competition is a rivalry where two or more parties strive for a common goal which cannot be shared: where one's gain is the other's loss (an example of which is a zero-sum game). Competition can arise between entities such as organisms, individuals, economic and social groups, etc. The rivalry can be over attainment of any exclusive goal, including Recognition (sociology), recognition: Competition occurs in nature, between living organisms which co-exist in the same natural environment, environment. Animals compete over water supplies, food, mates, and other resource (biology), biological resources. Humans usually Survival of the fittest, compete for food and mates, though when these needs are met deep rivalries often arise over the pursuit of wealth, power, prestige, and celebrity, fame when in a static, repetitive, or unchanging environment. Competition is a major tenet of market economy, market economies and business, often associated with business competition as companies a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Nevada De Santa Marta
The Sierra Nevada de Santa Marta (English: ''Snow-Covered Mountain Range of Saint Martha'') is an isolated mountain range in northern Colombia, separate from the Andes range that runs through the north of the country. Reaching an elevation of just from the Caribbean coast, the Sierra Nevada is the highest coastal range in the tropics, and one of the highest coastal ranges in the world, being shorter than the Saint Elias Mountains in Canada. The Sierra Nevada encompasses about and serves as the source of 36 rivers. The range is in the Departments of Magdalena Department, Magdalena, Cesar Department, Cesar and La Guajira Department, La Guajira. The highest point of the Sierra Nevada group (and Colombia in general) may be either Pico Cristóbal Colón or Pico Simón Bolívar, both in the municipalities of Santa Marta and Aracataca; it has yet to be determined which is higher. SRTM data and local topographic maps show that their true elevations are approximately , lower than the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra De Perijá
Sierra (Spanish for "mountain range" and "saw", from Latin '' serra'') may refer to the following: Places Mountains and mountain ranges * Sierra de Juárez, a mountain range in Baja California, Mexico * Sierra de las Nieves, a mountain range in Andalusia, Spain * Sierra Madre (other), various mountain ranges ** Sierra Madre (Philippines), a mountain range in the east of Luzon, Philippines * Sierra mountains (other) * Sierra Nevada, a mountain range in the U.S. states of California and Nevada * Sierra Nevada (Spain), a mountain range in Andalusia, Spain * Sierra de San Pedro Mártir, a mountain range in Baja California, Mexico * Sierra Maestra, a mountain range in Cuba Other places Africa * Sierra Leone, a country located on the coast of West Africa Asia * Sierra Bullones, Bohol, Philippines Europe * Sierra Nevada National Park (Spain), Andalusia, Spain * Sierra Nevada Observatory, Granada, Spain North America * High Sierra Trail, California, United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beryl-spangled Tanager
The beryl-spangled tanager (''Tangara nigroviridis'') is a small songbird of the northern Andes. Taxonomy First described by Frédéric de Lafresnaye in 1843, the beryl-spangled tanager is one of dozens of tanager species in the genus ''Tangara''. Description It is a small songbird, measuring in length. Its plumage is largely turquoise, though heavily marked with black spots and scales. Its breast and belly are primarily black, with opalescent greenish spotting. Habitat and distribution The beryl-spangled tanager is found on the eastern slopes of the Andes from Venezuela, though Colombia, Ecuador and Peru to Bolivia. In Ecuador, it is found at elevations ranging from , while in Peru it ranges somewhat higher – from . It occurs in humid montane forest and second growth. References * Robert Ridgely & Guy Tudor, Birds of South America Vol. 1 (Univ. Texas Press, 1989). beryl-spangled tanager Birds of the Northern Andes beryl-spangled tanager The beryl-spangled tanager ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver-backed Tanager
The silver-backed tanager (''Stilpnia viridicollis''), also known as the silvery tanager, is a species of bird in the tanager family. It is found in humid highland forests in southern Ecuador, Peru, and Bolivia. It is regularly spotted at Machu Picchu Machu Picchu is a 15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a mountain range.UNESCO World Heritage Centre. It is located in the Machupicchu District within Urubamba Province above the Sacred Valley, which .... References silver-backed tanager Birds of the Ecuadorian Andes Birds of the Peruvian Andes silver-backed tanager silver-backed tanager Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Thraupidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Feathers
Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tail are called rectrices (), singular rectrix (). The primary function of the flight feathers is to aid in the generation of both thrust and lift, thereby enabling flight. The flight feathers of some birds have evolved to perform additional functions, generally associated with territorial displays, courtship rituals or feeding methods. In some species, these feathers have developed into long showy plumes used in visual courtship displays, while in others they create a sound during display flights. Tiny serrations on the leading edge of their remiges help owls to fly silently (and therefore hunt more successfully), while the extra-stiff rectrices of woodpeckers help them to brace against tree trunks as they hammer on them. Even flightless birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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