Diversity in olfactory bulb size in birds reflects allometry, ecology ...
WEBJul 29, 2015 · Gross morphology of the olfactory bulbs (OBs) in birds. (A) Lateral view of 3D models of 12 representative avian species. Blue denotes the OBs and models are organized from largest to smallest.
Avian olfactory receptor gene repertoires: evidence for a well ...
WEBOct 10, 2008 · We further investigated whether either the proportion of potentially functional OR genes or the estimated total number of OR genes correlates with the olfactory bulb ratio (OBR), a possible anatomical correlate of olfactory capability (Edinger 1908).
Highly Contiguous Genomes Improve the Understanding of Avian Olfactory ...
WEBJun 28, 2021 · We directly compare Sanger, Illumina, hybrid, and Pac-Bio based assemblies to examine the ways in which our understanding of bird OR family repertoire, and our comprehension of avian olfactory capabilities, is shaped by …
Diversity in olfactory bulb size in birds reflects allometry, ecology ...
WEBJul 29, 2015 · In this study, we use the relative size of OBs as a neuroanatomical proxy for olfactory capabilities in 135 species of birds, representing 21 orders. We examine the scaling of OBs with brain size across avian orders, determine likely ancestral states and test for correlations between OB sizes and habitat, ecology, and behavior.
WEBWe examine the scaling of OBs with brain size across avian orders, determine likely ancestral states and test for correlations between OB sizes and habitat, ecology, and behavior.
The Evolution of Olfactory Capabilities in Wild Birds: A …
WEBAug 31, 2017 · We find an interactive effect of aquatic dependence and diet on the size of the olfactory bulb: vegetarian and omnivore birds living in aquatic environments have larger olfactory bulbs than terrestrial birds, whereas species with an animal diet, aquatic and terrestrial species have similar-sized olfactory bulbs.
The underestimated role of olfaction in avian reproduction
WEBJun 6, 2009 · Histological studies of the avian olfactory epithelium have revealed detailed features of organization that are basically similar to those found in mammals. Olfactory receptors in the epithelium connect, via paired olfactory nerves, with olfactory bulbs located at the rostral end of the brain.
Avian olfactory receptor gene repertoires: evidence for a well ...
WEBWe also show that it is not the estimated proportion of potentially functional OR genes, but rather the estimated total number of OR genes that correlates positively with relative olfactory bulb size, an anatomical correlate of olfactory capability.
Avian olfaction: then and now | Journal of Ornithology - Springer
WEBJun 14, 2007 · We administered the perception test, therefore, to six avian species with olfactory bulb ratios from small, viz., canary (Serinus canaris) to large, viz., turkey vulture (Cathartes aura). Positive results were obtained in every case (Wenzel and Sieck 1972).
Comparative growth in the olfactory system of the developing …
WEBAs part of a larger effort to better understand the role of olfaction and olfactory tissues in the evolution and development of the avian skull, we present the first quantitative analysis of ontogenetic scaling between olfactory features [olfactory bulbs (OBs) and olfactory turbinates] and neighboring structures (cerebrum, total brain, respirato...