Notes on the Giant Coot (Fulica gigantea)

McFarlane, Robert W.

doi:10.2307/1366228

Cited by 7 publications

(8 citation statements)

References 4 publications

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“…On the other hand, relatively deep and mildly salty lakes are filled with submergents, mostly Ruppia spp. Very high in the mountains, where the climate is extreme, glacial lakes with narrow weed-zones (Johnson 1965;McFarlane 1975) …”

Section: Wetland Habitats In the Puna Zonementioning

confidence: 99%

Origin, Evolution, and Status of the Avifauna of Andean Wetlands

Fjeldså¹

1985

Ornithological Monographs

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. University of California Press and AmericanOrnithologists' Union are collaborating with JSTOR to digitize, preserve and extend access to Ornithological Monographs.ABSTRACT. The distribution of Andean wetland habitats in the Pleistocene and present is reviewed and considered in relation to the known distribution of waterbirds. Analysis based on suture zones, disjunctions, core areas for endemic taxa, and phylogenetic relationships suggests evolutionary processes closely tied to events in the Pleistocene. The distributions of species that prefer barren habitats suggest a center of origin in the glacial Lake Michin on the Bolivian Altiplano. Other glacial refugia that gave rise to new taxa were Lake Atacama in Chile, Lake Junin in Peru, and the large lakes that previously were present in the Bogota area, Colombia. Semi-open refugia along the Andean slopes had slight evolutionary significance. The inhabitants of Andean marsh habitats are generally poorly differentiated, morphologically, from lowland counterparts, and most probably they immigrated to the area in postglacial time. The colonization of the Andes was almost unidirectional, from the southern lowlands, which has resulted in a strong northward reduction of taxa adapted to barren habitats. The previous lakes of the Bogota area received propagules from other directions, including from North America, but the many marsh birds in this area have not shown adaptive shifts in response to vacant niches in barren habitats.RESUMEN. Se revee la distribucion de los habitats pantanosos de los Andes tanto durante el pleistoceno como en la actualidad y se los considera en relaci6n con la distribucion conocidas de aves acuaticas. Analisis basados en zonas de sutura, disjunci6n, areas centrales para grupos taxon6micos endemicos y relaciones filogeneticas, sugieren procesos de evolution cercanamente relacionados con sucesos del pleistoceno. La distribuci6n de especies que prefieren habitats esteriles hace suponer que el lago glacial Michin, en el altiplano boliviano, ha sido el centro de origen (de las mismas). Otros refugios glaciales, como el lago de Atacama en Chile, la laguna de Junin en Peru y los grandes lagos que se encontraban anteriormente en el area de Bogota, Colombia, tambien brindaron origen a nuevos grupos taxon6micos. Refugios semidescubiertos en las laderas de los Andes tienen escaso significado a nivel de evoluci6n. Los habitantes de los habitats pantanosos andinos generalmente presentan pocas diferencias morfologicas respecto a sus contrapartes en las tierras bajas, y probablemente han emigrado hacia el area luego de la 6poca glacial. La colonizaci6n de los Andes fue casi unidireccional desde las tierras bajas del sur, lo cua...

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Section: Wetland Habitats In the Puna Zonementioning

confidence: 99%

Origin, Evolution, and Status of the Avifauna of Andean Wetlands

Fjeldså¹

1985

Ornithological Monographs

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“…Galinhas-d'água e carquejas possuem um escudo frontal pronunciado e colorido na região proximal do bico, mais evidente durante o período reprodutivo (McFarlane, 1975;Taylor & Perlo, 1998).…”

Section: Rallidaeunclassified

“…Estudos baseados em dados morfológicos (Boyd & Alley, 1947;Fjeldså, 1982), comportamentais (Navas, 1960) e ecológicos (McFarlane, 1975) apontam Fulica rufifrons como a espécie menos especializada do gênero, assim como proposto por estudos filogenéticos morfológicos e moleculares (Livezey, 1998;Livezey & Zusi, 2006;Fain et al, 2007), em que F. rufifrons é o representante mais basal.…”

Section: Taxonomiaunclassified

Análise filogenética de ralídeos Neotropicais (Aves: Rallidae) com base em caracteres osteológicos

Alves¹

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“…Some of the nests I examined were only 1-1.5 m across but the largest exceeded 3 m at the water-line (see also Johnson 1965a). McFarlane (1975) stated 'from approximately one metre in diameter to several metres in length at the water-line, but much lzrger at their base. Large platforms tend to become elongate, paralleling the shore .…”

Section: Nestsmentioning

confidence: 99%

“…Curiously Giant Coots did not appear to use the typical threat postures of smaller coots (see Gullion 1952, Kornowski 1957, Askaner 1959, Navas 1960, Fjeldsi 1977a i.e., the forward threat, used while patrolling and the charging postures with neck extended forward along the water. McFarlane's (1975) description may apply to the charging but, according to my notes and photographic material, a low position like the charging one was only adopted briefly when splattering birds stopped wing-flapping for a moment. Instead they usually swam right at intruders in a seemingly normal manner with horizontal tail and slightly raised feathers on the erect neck and orbital knobs.…”

Section: Territorial Behaviourmentioning

confidence: 99%

BIOLOGICAL NOTES ON THE GIANT COOT FULZCA GIGANTEA

Fjeldså

1981

Ibis

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Summary The Giant Coot is generally a local and sparse bird in Andean lakes at 3100–5000 m. One of the localities found by the author, Lake Lagunillas in southern Peru, contained 600–650 nesting pairs increasing the known population markedly. The enormous offshore nests are completely open to view. They begin as floating structures but as they increase in size, rest on the bottom like islands. Since the central parts of large nests turn into compact peat, they are probably used for years in succession. Thriving breeding populations may require extensive shallows with dense weeds such as Myriophyllum and Potamogeton at the water surface. New materials are added to the high nest‐rim as long as pairs have young and this serves as a continuing food supply for the chick, permitting them to stay dry and sheltered during bad weather. The threat behaviour differs markedly from that of other coots studied. The main breeding season is in the austral winter when there is intense cold every night, with second broods in spring and some laying at other seasons. Development appears very slow. Territorial adults seem sedentary and flightless. It is assumed that the species disperse through nocturnal flights, probably by immatures which have not yet obtained full weight.

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Notes on the Giant Coot (Fulica gigantea)

Cited by 7 publications

References 4 publications

Origin, Evolution, and Status of the Avifauna of Andean Wetlands

Origin, Evolution, and Status of the Avifauna of Andean Wetlands

Análise filogenética de ralídeos Neotropicais (Aves: Rallidae) com base em caracteres osteológicos

BIOLOGICAL NOTES ON THE GIANT COOT FULZCA GIGANTEA

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