Ptarmigan (Lagopus muta) Science Article 8 abstract Stewart and Dalen (2008) argue that only temperate species were locked incryptic northern refugia during Pleistocene glacial cycles, while species presently found athigh latitudes had much wider distributions during glaciations. Christin L. Pruett & Kevin Winker, Climatic Change, 2007 Download article download full text (pdf)
Population fluctuations in Rock Ptarmigan in higharcticGreenland
Ptarmigan (Lagopus muta) Science Article 6 abstract Cyclicity in population fluctuations has been described in a number of tetraonid species. Also, synchronyin these fluctuations
Gyrfalcon predation on ptarmigan: numerical andfunctional responses
Ptarmigan (Lagopus muta) Science Article 7 abstract Gyrfalcon predation on ptarmigan during the breeding season was studied innorth-east Iceland 1981
The Reproductive Biology of Rock Ptarmigan (Lagopus mutus) in the Central Canadian Arctic
Ptarmigan (Lagopus muta) Science Article 1 abstract This paper reports on the nesting phenology, breeding biology, and attrition rates at different stages of the breeding cycle of a population of rock ptarmigan (Lagopus mutus) at Windy Lake, Northwest Territories, from 1987 to 1989. By early May, males were on the study area, mostly in flocks […]
Historical Biogeography and a Mitochondrial DNA Phylogeny of Grouse and Ptarmigan
Ptarmigan (Lagopus muta) Science Article 3 abstract We sequenced 2690 nucleotides of mitochondrial DNA (mtDNA) including the entire control region (CR), partial 12S and 16S ribosomal RNAs, NADH dehydrogenase subunit 2, and cytochrome b genes from representatives of all the 17 living species of grouse and ptarmigan (Aves; Galliformes; subfamily Tetraonin ). Substitution rates and […]
Geographic variation in body mass of rock ptarmigan Lagopus mutus in the Alps and the Pyrenees
Ptarmigan (Lagopus muta) Science Article 4 abstract We compared the body mass of adult rock ptarmigan Lagopus mutus shot in autumn in the French Pyrenees (Ariege), the French Alps (Hautes-Alpes) and the Italian Alps (Province of Verbania). Mean body mass of adults was greater in the Ariege than in the Hautes-Alpes both for cocks (466 […]
Vegetation analysis of the territorial boundary between red grouse (lagopus scoticus) and ptarmigan (Lagopus mutus)
Ptarmigan (Lagopus muta) Science Article 2 abstract The location of the boundary between the territories of red grouse (Lagopus lagopus scoticus) and ptarmigan (Lagopus mutus) is related to the vegetation of the hills where both these species occur. If the he vegetation is dominated by tall, vigorous Calluna vulgaris, grouse occur. At greater altitudes where […]
PROTHONOTARY WARBLERS CROSS THE GULF OF MEXICO TOGETHER
Prothonotary Warbler (Protonotaria citrea) Science Article 1 abstract Field observationos f ‘marked’ ProthonotaryW arblers (Protonotaricai trea)s uggestthat monospecifigcr oupso f trans-Gulf migrantsd epartf rom the samel ocation,m aintaincontactw hile flying at night, and form a homogeneousfl ock the next morning over thenorthern Gulf of Mexico. FRANK R. MOORE, Field Ornithol., 61(3):285-287 Download article download full […]
Retaliatory mafia behavior by a parasitic cowbirdfavors host acceptance of parasitic eggs
Prothonotary Warbler (Protonotaria citrea) Science Article 3 abstract Why do many hosts accept costly avian brood parasitism evenwhen parasitic eggs and nestlings differ dramatically in appearancefrom their own? Scientists argue that evolutionary lag orequilibrium can explain this evolutionary enigma. Few, however,consider the potential of parasitic birds to enforce acceptance bydestroying eggs or nestlings of hosts […]
Prothonotary Warbler Nest Success and VegetationCharacteristics in a Fragmented Oklahoma Landscape
Prothonotary Warbler (Protonotaria citrea) Science Article 2 abstract In 2003, I studied the relationship between prothonotary warbler (Protonotaria citrea)nest success and vegetation characteristics in a fragmented Oklahoma landscape. Fortynest boxes were monitored for reproductive success and vegetation characteristics weremeasured at nest boxes and 40 random points within the same stands. Thirty-five successfulnests fledged a mean […]