Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Ned K. Johnson"'
Autor:
Ned K. Johnson, Mercedes S. Foster
Publikováno v:
Smithsonian Contributions to Zoology. :2-83
We studied the avifauna in a subtropical humid forest around Hotel El Tirol, Department of Itapua, Paraguay. The study site is part of the Atlantic Forest biome, a critically endangered biodiversity hot spot. We recorded 205 species of birds in 45 fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25cd83a242f83167ad63d722c18d3257
https://doi.org/10.5479/si.19436696.648
https://doi.org/10.5479/si.19436696.648
Autor:
Carla Cicero, Ned K. Johnson
Publikováno v:
The Auk. 123:266-274
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1ae7a47ea877746049925cf6acdfe25
https://doi.org/10.1093/auk/123.1.266
https://doi.org/10.1093/auk/123.1.266
Autor:
Ned K. Johnson, Carla Cicero
Publikováno v:
Evolution. 58:1122-1130
The timing of origin of modern North American bird species in relation to Pleistocene glaciations has long been the topic of significant discussion and disagreement. Recently, Klicka and Zink (1997) and Avise and Walker (1998) enlivened this debate b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4666c523fbed65753634d16938d07f2d
https://doi.org/10.1111/j.0014-3820.2004.tb00445.x
https://doi.org/10.1111/j.0014-3820.2004.tb00445.x
Autor:
Carla Cicero, Ned K. Johnson
Publikováno v:
Molecular Ecology. 11:2065-2081
Avian genera characterized by sibling species with distinctive habitat preferences present an evolutionary enigma in view of the more commonplace occurrence of syntopic congeners that differ strikingly in colour and pattern. No existing theory has ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24ef8f5bb99b14664cbf434609d1b528
https://doi.org/10.1046/j.1365-294x.2002.01588.x
https://doi.org/10.1046/j.1365-294x.2002.01588.x
Autor:
Ned K. Johnson
Publikováno v:
Ibis. 144:69-84
I analysed geographical variation in size, colour and pattern quantitatively in the Rufous-crowned Tody-Tyrant Poecilotriccus ruficeps and Lulu Von Hagen’s Tody-Tyrant P. luluae, two component species of a superspecies inhabiting the northern Andes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4711d57a94f422c951dc414b1557e50b
https://doi.org/10.1046/j.0019-1019.2001.00011.x
https://doi.org/10.1046/j.0019-1019.2001.00011.x
Autor:
Ned K. Johnson, Carla Cicero
Publikováno v:
Molecular Phylogenetics and Evolution. 20:27-40
Interfamilial relationships of the New World songbird family Vireonidae are uncertain. Thus, we sequenced 3069 bp of four mitochondrial genes (cyt b, ND2, ND3, COI) from 19 taxa in five families and two outgroups, to examine higher-level alliances wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3322c7be198828dbb6da71efd2bd04cb
https://doi.org/10.1006/mpev.2001.0944
https://doi.org/10.1006/mpev.2001.0944
Autor:
Ned K. Johnson, Robert E. Jones
Publikováno v:
The Auk. 118:334-341
We describe a new species of tody-tyrant of the genus Poecilotriccus, isolated in midelevation forests of the Cordillera de Colán and nearby mountains to the east in the northeastern Andes of Peru. The new species is allopatric from, and forms a pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbd25395a0828ce94033d2526239b977
https://doi.org/10.1093/auk/118.2.334
https://doi.org/10.1093/auk/118.2.334
Autor:
Ned K. Johnson, Carla Cicero
Publikováno v:
Molecular Ecology. 7:1359-1370
We constructed a molecular phylogeny for a clade of eye-ringed vireos (Vireo flavifrons and the V. solitarius complex) to examine existing hypotheses of speciation and ecological diversification. Complete sequences of the mtDNA cytochrome b gene were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d279a96530df1267876e06d7ea6ff376
https://doi.org/10.1046/j.1365-294x.1998.00483.x
https://doi.org/10.1046/j.1365-294x.1998.00483.x
Publikováno v:
The Condor. 100:18-26
In contrast to the results of Thompson et al. (1992), refined colorimetry validates three subspecies of Least Tern in North America, Sterna antillarum antillarum (Lesson), S. a. browni Mearns, and S. a. athalassos Burleigh and Lowery. Four of nine co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afa61d8b90b286a8c1dfbac89041fe4c
https://doi.org/10.2307/1369893
https://doi.org/10.2307/1369893
Autor:
Richard C. Banks, John W. Fitzpatrick, Thomas R. Howell, Ned K. Johnson, Burt L. Monroe, Henri Ouellet, J. V. Remsen, Robert W. Storer
Publikováno v:
The Auk. 114:542-552
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d11dbb2df0d838f0048b3ed0ec55650b
https://doi.org/10.2307/4089270
https://doi.org/10.2307/4089270