Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Paul Handford"'
The tropical and subtropical Andes have among the highest levels of biodiversity in the world. Understanding the forces that underlie speciation and diversification in the Andes is a major focus of research. Here we tested two hypotheses of species o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09b5e7cbfbdce165cb99edaa9f5bf969
Autor:
Ha-Cheol, Sung, Paul, Handford
Publikováno v:
Zoological science. 36(3)
We studied seasonal and diurnal variation of singing activity in a single-song repertoire species, the savannah sparrow (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::893a756439f2f32b0cf8ffaeb5b1958e
https://pubmed.ncbi.nlm.nih.gov/31251485
https://pubmed.ncbi.nlm.nih.gov/31251485
Autor:
Ha-Cheol Sung, Paul Handford
Publikováno v:
Zoological Science. 36:173
We studied seasonal and diurnal variation of singing activity in a single-song repertoire species, the savannah sparrow (Passerculus sandwichensis), to explore the possible functions of the song. We observed a total of 47 territorial males (11 over t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2488c1fcd1c41b65b5dec9bb8f9de013
https://doi.org/10.2108/zs180139
https://doi.org/10.2108/zs180139
Autor:
Paul Handford, Leonardo Campagna, Pablo L. Tubaro, Dario A Lijtmaer, Kathryn Geale, Stephen C. Lougheed
Publikováno v:
Molecular Phylogenetics and Evolution. 61:521-533
The unparalleled avian diversity of the Neotropics has long been argued to be in large part the evolutionary consequence of the incredible habitat diversity and rugged topography of the Andes mountains. Various scenarios have been proposed to explain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10b5d98de962bcf3aea37d8d6d12fb61
https://doi.org/10.1016/j.ympev.2011.07.011
https://doi.org/10.1016/j.ympev.2011.07.011
Autor:
Jörn Köhler, Juan C. Chaparro, Stephen C. Lougheed, Ignacio De la Riva, José M. Padial, Daria Koscinski, Paul Handford
Publikováno v:
Zoologica Scripta. 39:572-590
We revisit the taxonomic status of Andean species and populations of frogs of the Hypsiboas pulchellus group using multiple lines of evidence potentially indicative of evolutionary lineage divergence in anurans: differences in qualitative morphologic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a48ea075f5d0493c30b59731f94b98f
https://doi.org/10.1111/j.1463-6409.2010.00448.x
https://doi.org/10.1111/j.1463-6409.2010.00448.x
Publikováno v:
Journal of Biogeography. 36:255-265
Aim The aim of this study was to understand the roles of landscape features in shaping patterns of contemporary and historical genetic diversification among populations of the Andean tree frog (Hypsiboas andinus) across spatial scales. Location Andes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62f83a1127ef17e5d3e8c425fcaa6583
https://doi.org/10.1111/j.1365-2699.2008.02009.x
https://doi.org/10.1111/j.1365-2699.2008.02009.x
Publikováno v:
Molecular Ecology. 17:2012-2025
Our understanding of the causes of diversification of Neotropical organisms lags behind that of Northern Hemisphere biota, especially for montane and temperate regions of southern South America. We investigated the mitochondrial DNA genealogical patt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d41fa00bd561dbcc28992a216d03e24d
https://doi.org/10.1111/j.1365-294x.2008.03733.x
https://doi.org/10.1111/j.1365-294x.2008.03733.x
Autor:
Ha-Cheol SungH.-C. Sung, Paul Handford
Publikováno v:
Canadian Journal of Zoology. 84:1637-1646
We investigated song structure and the pattern of geographic variation at the syllable and whole song levels in Savannah Sparrow, Passerculus sandwichensis (J.F. Gmelin, 1789). Songs were recorded for 179 males from eight sample populations distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f656044a3646f76b1bbf18428d3274b
https://doi.org/10.1139/z06-159
https://doi.org/10.1139/z06-159
Autor:
Timothy J. Brown, Paul Handford
Publikováno v:
Ibis. 145:120-129
The dawn chorus is a widely observed phenomenon. One of the common, but inadequately studied, explanations for the occurrence of the dawn chorus is based on the rationale that atmospheric turbulence, which impairs acoustic communication, is least at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d62fcd304d509df7eb4a4be22dd94a28
https://doi.org/10.1046/j.1474-919x.2003.00130.x
https://doi.org/10.1046/j.1474-919x.2003.00130.x
Publikováno v:
Molecular Phylogenetics and Evolution. 17:367-378
We investigated the phylogenetic relationships of 12 species within a single genus of neotropical passerine (Poospiza) using 849 bp (283 codons) of the cytochrome b mitochondrial gene. We further explored evolutionary affinities of these taxa using s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba7f9bac9cdf720a19e82a399257bb2c
https://doi.org/10.1006/mpev.2000.0843
https://doi.org/10.1006/mpev.2000.0843