Results 101 to 110 of about 944 (204)

Molecular and morphological analyses of avian eggshell excavated from a late thirteenth century earth oven

, 2011
Using ancient DNA (aDNA) extracted from eggshell of the extinct moa (Aves: Dinornithiformes) we determined the species composition and number of eggs found in a late thirteenth century earth oven feature at Wairau Bar (South Island, New Zealand) - one of
Holdaway, R.N., Michael Bunce, Richard Walter, Walter, R., Chris Jacomb, Haile, James, Paul Scofield, R., Oskam, C., Morten E. Allentoft, Oskam, C.L., Haile, J., Holdaway, R., Allentoft, M.E., Richard N. Holdaway, James Haile, Charlotte L. Oskam, R. Paul Scofield, Allentoft, M., Scofield, R., Jacomb, C., Bunce, M., Bunce, Michael   +21 more
core   +1 more source

Neogene climate change and emergence of C-4 grasses in the Namib, southwestern Africa, as reflected in ratite C-13 and O-18

, 2006
Stable light isotopes in ratite eggshells have been shown to be reliable indicators of shifts in climate and environmental conditions in the past. Here, we show that delta(18)O and delta(13)C values in fossil and modern ratite eggshells collected in the ...
de Rafelis, M., Mélice, Jean-Luc, Segalen, L., Senut, B., Pickford, M., Lee Thorp, J.A., Le Callonnec, L., Renard, M., Emmanuel, L.   +8 more
core  

Ratite Enrichment Options

, 2016
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Comparative frequency of osseous macroscopic pathology and first report of gout in captive and wild-caught ratites

, 2007
This systematic survey of museum ratite (Pterocnemia, Rhea, Casuarius, Struthio, Dromias and Apteryx) skeletal collections was performed to reevaluate previous perspectives and assess effect of captivity on macroscopically detectable pathology.
Rothschild, B M, Rühli, F R
core   +1 more source

Data from: Ratite non-monophyly: independent evidence from 40 novel loci

, 2012
Large-scale multi-locus studies have become common in the field of molecular phylogenetics, but the best way to interpret these studies when their results strongly conflict with prior information about phylogeny remains unclear.
Kimball, Rebecca T., Smith, Jordan V., Braun, Edward L.   +2 more
core   +1 more source

3D atlas of tinamou (Neornithes: Tinamidae) pectoral morphology: Implications for reconstructing the ancestral neornithine flight apparatus. [PDF]

J Anat, 2023
Widrig KE, Bhullar BS, Field DJ.
europepmc   +1 more source

Fractional regression models for second stage DEA efficiency analyses [PDF]

Data envelopment analysis (DEA) is commonly used to measure the relative efficiency of decision-making units. Often, in a second stage, a regression model is estimated to relate DEA efficiency scores to exogenous factors. In this paper, we argue that the
Joaquim J.S. Ramalho, Esmeralda A. Ramalho,, Pedro D. Henriques   +2 more
core  

Comparative analysis of PB2 residue 627E/K/V in H5 subtypes of avian influenza viruses isolated from birds and mammals. [PDF]

Front Vet Sci, 2023
Briggs K, Kapczynski DR.
europepmc   +1 more source

Degeneration and adaptive evolution of digits in ratite birds. [PDF]

Mol Biol Evol
Kang W, Wagner G, Zhou Q.
europepmc   +1 more source

Quantitative analysis of stem-palaeognath flight capabilities sheds light on ratite dispersal and flight loss. [PDF]

Biol Lett
Widrig K, Alfieri F, Kuo PC, James H, Field DJ.   +4 more
europepmc   +1 more source