Proceedings of the zoological society of london pt9. The torrent duck merganetta armata, gould 1842 inhabits fastflowing rivers over a wide elevational range in the andes johnsgard, 1972. Torrent duck merganetta armata, rio papallacta, guango, ecuador. He carried his recording gear out early each morning and returned just before dark. Merganetta armata war al lechienn birdlife international. In aramata we find a mixture of a the familiar shapes and an aesthetic steadiness and strength with a small number of innovative and delicate gestures. The number of free ranging african lions panthera leo has never been comprehensively assessed. Merganetta armata war lechienn an international union for conservation of nature iucn.
Download and install the armata free font family by sorkin type co as well as testdrive and see a complete character set. Setting priorities for the conservation of venezuelas. Torrent ducks merganetta armata diving and feeding in hot springs article pdf available in waterbirds 382. Yes, id like to receive word of the day emails from. As part of a longterm study, two rivers important for hydroelectric production were surveyed in. Time budgets of torrent ducks merganetta armata in the.
The impacts of roads, deforestation, and disturbance on. Sexes look quite different, but both have a bright red bill and striped back. Giklaseklase sa iucn ang espesye sa kinaminosang kalabotan. All structured data from the file and property namespaces is available under the creative commons cc0 license. Pato cortacorrientes merganetta armata armata, torrent d. Chilean torrent duck chileense bergbeekeend merganetta. Shelducks and sheldgeese torrent duck, merganetta armata orinoco goose, neochen jubata andean goose, oressochen melanopterus upland goose, chloephaga picta kelp goose, chloephaga hybrida ashyheaded goose, chloephaga poliocephala ruddyheaded goose, chloephaga rubidiceps radjah shelduck raja shelduck,radjah radjah. The diet and food availability in this hot spring was. The torrent duck merganetta armata is a member of the duck, goose and swan family anatidae. Pdf feeding habits of torrent ducks merganetta armata. Your use of this pdf, the bioone complete website, and all posted and. The subspecies list below represents the congruent views of ioc. Recommended english names, princeton university press, isbn. Key words andes, capture, diving duck, merganetta armata, mist net, rivers, torrent duck, waterfowl.
Naked mole rat brain mitochondria electron transport system. Abstracttorrent ducks merganetta armata inhabit fastflowing rivers in the. Analyses of globally threatened anatidae in relation to. It is placed in the shelduck subfamily tadorninae after the perching duck assemblage where it was formerly assigned to was dissolved because it turned out to be paraphyletic this 4346centimetre 1718 in long species is a resident breeder in the. Pdf we characterized the feeding behavior of the torrent duck in a period of high and low rainfall in the cordillera central. An merganetta armata in uska species han aves nga ginhulagway ni gould hadton 1842. Birds best1 collection of 365 most beautiful pictures. Studies in wildlife management and biology that require the capture of a habitatspecialized waterfowl species e. Torrent ducks merganetta armata diving and feeding in. Torrent ducks inhabit fastflowing rivers in the andes from sea level to altitudes up to 4500 m. A survey of peruvian torrent ducks merganetta armata leucogenis on two rivers in peru. Merganetta armata, a riverine specialist bird with a broad distribution in andean riverine habitats which certainly comprises different subspecies and may comprise more than one species.
Pdf torrent duck merganetta armata population trend in. An merganetta armata in nahilalakip ha genus nga merganetta, ngan familia nga anatidae. Prevalence and genetic diversity of haematozoa in south. Ecuador, torrent duck, pato torrentero, development, disturbance, deforestation, merganetta armata short title. Handbook of the birds of the world alive series is the first work ever to illustrate and deal in detail with all the living species of birds. Old divergence and restricted gene flow between torrent.
Pdf dietary selection of torrent duck merganetta armata in the. This gives a conservative estimate of 16,50030,000 free ranging lions in africa. Molecular and morphological differentiation among torrent. Media in category merganetta armata the following 68 files are in this category, out of 68 total. Torrent ducks feed on benthic invertebrates in mountain rivers from venezuela to argentina. Pdf habitat selection by torrent ducks merganetta armata. Merganetta armata garleppi, e bolivia, merganetta armata leucogenis, e kreiz ha kreisteiz ecuador ha perou, merganetta armata turneri, e kreisteiz perou arequipa ha qusqu. Armata article about armata by the free dictionary. With a wide distribution on andean rivers from venezuela to southern chile, torrent duck merganetta armata is generally treated as a single species comprising three to six subspecies. Shelducks and sheldgeese torrent duck, merganetta armata orinoco goose, neochen jubata andean goose, oressochen melanopterus upland goose, chloephaga picta kelp goose, chloephaga hybrida ashyheaded goose, chloephaga poliocephala ruddyheaded goose, chloephaga rubidiceps.
The torrent duck merganetta armata is one of four species of waterfowl that live in fast flowing rivers. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Unmistakable as it is only duck regularly found on fastmoving andean rivers and streams. The torrent duck merganetta armata is a member of the duck, goose and swan family. Merganetta wikispecies wikispecies, free species directory. Files are available under licenses specified on their description page. Mitochondrial physiology in the skeletal and cardiac muscles.
Slim and longtai torrent duck merganetta armata hbw alive. Merganetta armata wikispecies, free species directory. Aug 29, 2019 click on the title to browse this issue. Ginklasipika han iucn an species komo diri gud kababarakan subspecies. Hegaztien barruko anatidae familian sailkatua dago. Torrent ducks merganetta armata are specialized riverine ducks that inhabit many of. Pdf we characterized the feeding behavior of the torrent duck in a period of high and low rainfall in the cordillera central from colombia. A consistent message is an important factor in whole health, believes armata. Bird sounds of ecuador is actually technically better quality than some of the previous recordings, so i think it is a better value. Ginklasipika han iucn an species komo diri gud kababarakan. The geographical distribution of the subspecies of lophonetta specularloides and merganetta armata anatidae in the provinces of mendoza and san juan, argentina. The impacts of roads, deforestation, and disturbance on the torrent duck merganetta armata in northern andes of ecuador all photographs by elizabeth w. An amazing duck of fastflowing andean rivers and streams.
Circle sizes are proportional to haplotype frequency see inset, lower left. Today it is placed in the shelduck subfamily tadorninae after the perching duck assemblage where it was formerly assigned to was dissolved because it turned out to be paraphyletic. Feeding habits of torrent ducks merganetta armata armata in nahuel huapi national park, argentina. Torrent duck, merganetta armata, pair of bird in the mountain river with stone. The geographical distribution of the subspecies of. Ang merganetta armata sakop sa kahenera nga merganetta sa kabanay nga itik. Mitochondrial physiology in the skeletal and cardiac. Sep 26, 2016 south central torrent free pdf ebooks. Merganetta dictionary definition merganetta defined. The torrent ducks merganetta armata are resident breeders in the andes of south america, where they nest in small waterside caves and other sheltered spots. Ini nga species ginbahin ha masunod nga subspecies.
Usually seen as singles or pairs resting on rocks in rushing water and not associating with other ducks. Pdf torrent ducks merganetta armata diving and feeding. Molecular and morphological differentiation among torrent duck. They will convene late afternoon on sunday the 20th, and finish around noon on wednesday the 24th. This page was last edited on 22 october 2017, at 06. Pdf the torrent duck merganetta armata is a poorly known species that lives exclusively in andean fast flowing. Opportunistic behavior in birds can enhance the ability of a species to expand their distribution. It is placed in the shelduck subfamily tadorninae after the perching duck assemblage where it was formerly assigned to was dissolved because it turned out to be paraphyletic. Were working with one retailer right now to develop a fact booklet talking about the advantages of allnatural or betterforyou or goodhealth type foods, he says. To understand the role of migratory birds in the movement and transmission of haematozoa within and between continental regions, we examined 804 blood samples collected from eleven endemic species of south american waterfowl in peru and argentina for.
Impacts of development on the torrent duck elizabeth w. For example, highaltitude populations of the andean torrent duck merganetta armata exhibit heightened respiratory capacities in gastrocnemius muscle, which is the primary muscle used for swimming and diving behaviours in this species dawson et al. Similarly, barheaded geese anser indicus, a species that flies at high altitude during its biannual migration across the himalayas, and highaltitude torrent ducks merganetta armata have greater mitochondrial respiratory capacity in locomotory muscles dawson et al. This is a rarely observed and beatiful species which is exclusively found in fastrunning, cold, rocky streams running down the slopes of the andes.
Prey selection by torrent ducks was investigated by comparing the proportion of prey taxa in their feces with the proportion available in river benthos. They are remarkably strong swimmers and are able to dive and fly at altitudes from sea level to greater than 4500 m, where barometric pressure and oxygen availability are low and p o 2. Jan 01, 2014 the torrent duck merganetta armata is one of four species of waterfowl that live in fast flowing rivers. Andes, gene flow, genetic diversity, merganetta armata, population structure, time since divergence. Prey selection and energy values of main food items of the. New record of torrent duck merganetta armata colombianaaves. We present an inventory of available information, covering most protected areas and ranging in quality from educated guesses to individually known populations. A taxonomic species within the genus merganetta the torrent duck definitions. Dietary selection of torrent duck merganetta armata in the upper basin of quindio river, colombia. Capture efficiency of torrent ducks by the active mistnet method. They are remarkably strong swimmers and are able to dive and fly at altitudes from sea level to greater than 4500 m, where barometric pressure and oxygen availability are low and p o 2 is less than 60% of that at sea.
Staus college of education, 407 furman hall oregon state university, corvallis, or 97333 5417609968 nancy. Family ducks, geese, swans anatidae the internet bird. Pdf the torrent duck merganetta armata is a poorly known species that lives exclusively in andean fast flowing rivers from venezuela to tierra del. The torrent duck merganetta armata inhabits the torrential rivers of the andean mountains. Feeds by diving in churning water and pools and is somehow able to swim upcurrent with no apparent exertion. Taxonomic status of races leucogenis, turneri, garleppi and berlepschi unclear. This was a man on a mission and now we see the fruits of his intense labors. Today it is placed in the shelduck subfamily tadorninae after the perching duck assemblage where it was formerly assigned to. This page was last edited on 7 october 2019, at 10.
1355 1414 1214 506 197 1461 466 1375 451 947 16 514 824 1410 11 1121 434 845 435 773 1154 395 67 1343 451 548 66 69 193 744 602 604 1486 864 781 166 681 161 67 221 1351 410 31 142 92