Birding in southern ecuador february 11 27, 2016 trip report folks, thank you for participating in our amazing adventure to the wilds of southern ecuador. Chilean torrent duck chileense bergbeekeend merganetta. Mitochondrial respiration and atp production are compromised by hypoxia. Anatidae and comments on its distribution in venezuela. Ang merganetta armata sakop sa kahenera nga merganetta sa kabanay nga itik. Molecular and morphological differentiation among torrent duck. The waterbird society has published results of scientific research for over two decades beginning with a proceedings of papers presented at the annual meetings from 1978 to 1980 followed in 1981 by a refereed, international journal, formerly called colonial waterbirds. The impacts of roads, deforestation, and disturbance on the. As an active process, the execution of this methodology required the presence of a well. Feathers are one of the defining characteristics of birds and serve a critical role in thermal insulation and physical protection against the environment. The vistas were amazing, the lodges were varied and delightful, the roads were interesting thank goodness for jaime, and the birds were fabulous.
A phylogenetic analysis of recent anseriform genera using morphological characters pdf. Conservation implications of hydropower production. The impacts of roads, deforestation, and disturbance on the torrent duck merganetta armata in northern andes of ecuador all photographs by elizabeth w. Torrent duck merganetta armata birdlife species factsheet. Daznai sutinkama cileje ir argentinoje, bet apie populiacijos skaitlinguma mazai zinoma. 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.
The diet and food availability in this hot spring was. Ini nga species ginbahin ha masunod nga subspecies. Gerardo ceron torrent ducks merganetta armata diving and feeding in hot springs, waterbirds 382, 214216. Merganetta armata garleppi berlepsch, 1894 subspecies. This page was last edited on 7 october 2019, at 10. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Diffusion approximations for demographic inference. Pleistocene speciation in birds living in the high andes nature.
Files are available under licenses specified on their description page. Molecular and morphological differentiation among torrent. The torrent duck merganetta armata is a member of the duck, goose and swan family. Media in category merganetta armata the following 68 files are in this category, out of 68 total. Down feather structure varies between low and high. Feeding habits of torrent ducks merganetta armata armata in nahuel huapi national park, argentina. New record of torrent duck merganetta armata colombianaaves. Pato fierro o zambullidor chico, oxyura vittata 11. Prey selection and energy values of main food items of the.
We examined both down and contour feathers from two populations of male torrent ducks merganetta armata from lima, peru, including one high. An merganetta armata in nahilalakip ha genus nga merganetta, ngan familia nga anatidae. 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. On the anatomy and systematic position of the torrent duck merganetta armata. Down feather structure varies between high and low. Oct 23, 2017 we examined both down and contour feathers from two populations of male torrent ducks merganetta armata from lima, peru, one highland population from the chancayhuaral river at approximately 3500 meters above sea level m. 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. Gerardo ceron and claudia boy prey selection and energy values of main food items of the torrent duck merganetta armata in northwestern patagonia, argentina, waterbirds 372, 153161, 1 january 2014. Merganetta armata war al lechienn birdlife international. Merganetta armata berlepschi hartert, 1909 subspecies. The torrent duck merganetta armata is one of the four.
Download and install the armata free font family by sorkin type co as well as testdrive and see a complete character set. Down feather structure varies between low and highaltitude torrent ducks merganetta armata. Description of the diving technique of the torrent duck. Molecular and morphological differentiation among torrent duck merganetta armata populations in the andes. Merganetta armata leucogenis tschudi, 1843 subspecies. Torrent ducks feed on benthic invertebrates in mountain rivers from venezuela to argentina. Recommended english names, princeton university press, isbn. Pdf torrent duck merganetta armata population trend in. Feeds by diving in churning water and pools and is somehow able to swim upcurrent with no apparent exertion. Slim and longtai torrent duck merganetta armata hbw alive.
Merganetta armata garleppi, e bolivia, merganetta armata leucogenis, e kreiz ha kreisteiz ecuador ha perou, merganetta armata turneri, e kreisteiz perou arequipa ha qusqu. An merganetta armata in uska species han aves nga ginhulagway ni gould hadton 1842. Currently, there is no documentation of any bird diving and feeding in hot springs with temperatures greater than 30 c. Pdf feeding habits of torrent ducks merganetta armata. In the intermediate elevations, mainly between 5,000 and 10,000 feet, a remarkable duck, fittingly called the torrent duck merganetta armata makes its home among the rapids and cataracts. Mitochondrial physiology in the skeletal and cardiac muscles.
The torrent duck merganetta armata is one of four species of waterfowl that live in fast flowing rivers. 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. We report on the use and efficiency of an active mist. Ecuador, torrent duck, pato torrentero, development, disturbance, deforestation, merganetta armata short title. 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. The torrent duck merganetta armata is a member of the duck, goose and swan family anatidae. Andine antis merganetta armata antiniu seimos andiniu anciu merganetta genties vandens pauksciu rusis, gyvenanti pietu amerikoje, andu kalnuose. The impacts of roads, deforestation, and disturbance on. Torrent ducks merganetta armata diving and feeding in hot springs article pdf available in waterbirds 382. Mitochondrial respiration was performed using a modification of previously described methods for intact fresh avian rbcs stier et al. Naked mole rat brain mitochondria electron transport system. To address this knowledge gap, we asked whether the function of nmr brain mitochondria exhibits.
Pdf dietary selection of torrent duck merganetta armata in the. Capture efficiency of torrent ducks by the active mist. An amazing duck of fastflowing andean rivers and streams. This page was last edited on 22 october 2017, at 06. Merganetta armata colombiana des murs, 1845 subspecies. Plumages and wing spurs of torrent ducks merganetta armata. The torrent duck merganetta armata, gould 1842 inhabits fastflowing rivers over a wide elevational range in the andes johnsgard, 1972. Feeding habits of torrent ducks merganetta armata armata. We examined the mitochondrial physiology that facilitates performance over this altitudinal cline by comparing the respiratory capacities of permeabilized fibers, the activities of 16 key metabolic enzymes and the myoglobin content in muscles between high and lowaltitude populations of this. Pdf 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.
Ginklasipika han iucn an species komo diri gud kababarakan subspecies. Naked mole rats nmrs are among the most hypoxiatolerant mammals and reduce metabolic rate in hypoxic environments. Mitochondrial physiology in the skeletal and cardiac. Dec 18, 2015 reporte monitoreo merganetta armata armata, sector alto rio volcan 202014 carolina besa d. We examined both down and contour feathers from two populations of male torrent ducks merganetta armata from lima, peru, one highland population from the chancayhuaral river at approximately 3500 meters above sea level m. They will convene late afternoon on sunday the 20th, and finish around noon on wednesday the 24th. View enhanced pdf access article on wiley online library html view download pdf for offline viewing.
The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs alternatively, you can download the pdf file directly to your computer. Torrent ducks merganetta armata diving and feeding in hot. Download pdf download all download jpeg 2000 download text. Prey selection by torrent ducks was investigated by comparing the proportion of prey taxa in their feces with the proportion available in river benthos. Pdf torrent ducks merganetta armata diving and feeding. Jun 30, 2010 models of demographic history population sizes, migration rates, and divergence times inferred from genetic data complement archeology and serve as null models in genome scans for selection. Pdf the torrent duck merganetta armata is a poorly known species that lives exclusively in andean fast flowing rivers from. Unmistakable as it is only duck regularly found on fastmoving andean rivers and streams. Torrent ducks merganetta armata diving and feeding in hot springs. Sexes look quite different, but both have a bright red bill and striped back. A pair of torrent ducks merganetta armata feeding in a hot spring with temperatures between 3650 c is described. Reporte monitoreo merganetta armata armata en alto rio volcan. All structured data from the file and property namespaces is available under the creative commons cc0 license. Agerelated increase in mitochondrial quantity may mitigate a.
In argentina the species is classified as threatened but basic studies of its resource requirements are necessary for conservation. Dietary selection of torrent duck merganetta armata in the upper basin of quindio river, colombia. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. We describe the torrent ducks merganetta armata diving technique from deep and shallow waters in two rivers of the northwestern patagonia, through 36 observations on 3 individuals. Proceedings of the zoological society of london pt9. However, it is not a legal authority for statutory or regulatory purposes. We examined both down and contour feathers from two populations of male torrent ducks merganetta armata from lima, peru, including one highaltitude population from the chancayhuaral river at approximately 3500 meters m elevation and one lowaltitude population from the chillon river at approximately 1500 m. The torrent duck merganetta armata is a littleknown species that feeds on benthic invertebrates in fastflowing mountain rivers and streams from venezuela to tierra del fuego. Impacts of development on the torrent duck elizabeth w. Hegaztien barruko anatidae familian sailkatua dago.
Feather structure is known to vary among individuals, and it has been suggested that populations exposed to different environmental conditions may exhibit different patterns in feather structure. Pdf habitat selection by torrent ducks merganetta armata. 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. Jun 01, 2015 opportunistic behavior in birds can enhance the ability of a species to expand their distribution. Giklaseklase sa iucn ang espesye sa kinaminosang kalabotan. Usually seen as singles or pairs resting on rocks in rushing water and not associating with other ducks. Dec, 2010 from the bridge at manu cloud forest lodge on manu road peru. Species, merganetta armata gould, 1842 torrent duck. Extracting honey from honeycomb using a honey paw the bush bee man duration. 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.
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