Browsing by Subject "Species Specificity"
Now showing items 1-20 of 52
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A comparison of temperament in nonhuman apes and human infants.
(Dev Sci, 2011-11)The adaptive behavior of primates, including humans, is often mediated by temperament. Human behavior likely differs from that of other primates in part due to temperament. In the current study we compared the reaction of ... -
A fruit in the hand or two in the bush? Divergent risk preferences in chimpanzees and bonobos.
(Biol Lett, 2008-06-23)Human and non-human animals tend to avoid risky prospects. If such patterns of economic choice are adaptive, risk preferences should reflect the typical decision-making environments faced by organisms. However, this approach ... -
A host transcriptional signature for presymptomatic detection of infection in humans exposed to influenza H1N1 or H3N2.
(PLoS One, 2013)There is great potential for host-based gene expression analysis to impact the early diagnosis of infectious diseases. In particular, the influenza pandemic of 2009 highlighted the challenges and limitations of traditional ... -
An estimate of the number of tropical tree species.
(Proc Natl Acad Sci U S A, 2015-06-16)The high species richness of tropical forests has long been recognized, yet there remains substantial uncertainty regarding the actual number of tropical tree species. Using a pantropical tree inventory database from closed ... -
Are the native giant tortoises from the Seychelles really extinct? A genetic perspective based on mtDNA and microsatellite data.
(Mol Ecol, 2003-06)The extinction of the giant tortoises of the Seychelles Archipelago has long been suspected but is not beyond doubt. A recent morphological study of the giant tortoises of the western Indian Ocean concluded that specimens ... -
Chemical characterization of oligosaccharides in the milk of six species of New and Old World monkeys.
(Glycoconj J, 2010-10)Human and great ape milks contain a diverse array of milk oligosaccharides, but little is known about the milk oligosaccharides of other primates, and how they differ among taxa. Neutral and acidic oligosaccharides were ... -
Chimpanzees and bonobos exhibit divergent spatial memory development.
(Dev Sci, 2012-11)Spatial cognition and memory are critical cognitive skills underlying foraging behaviors for all primates. While the emergence of these skills has been the focus of much research on human children, little is known about ... -
Comparative genomics reveals molecular features unique to the songbird lineage.
(BMC Genomics, 2014-12-13)BACKGROUND: Songbirds (oscine Passeriformes) are among the most diverse and successful vertebrate groups, comprising almost half of all known bird species. Identifying the genomic innovations that might be associated with ... -
Complex evolutionary trajectories of sex chromosomes across bird taxa.
(Science, 2014-12-12)Sex-specific chromosomes, like the W of most female birds and the Y of male mammals, usually have lost most genes owing to a lack of recombination. We analyze newly available genomes of 17 bird species representing the avian ... -
Convergent transcriptional specializations in the brains of humans and song-learning birds.
(Science, 2014-12-12)Song-learning birds and humans share independently evolved similarities in brain pathways for vocal learning that are essential for song and speech and are not found in most other species. Comparisons of brain transcriptomes ... -
Delimiting species without nuclear monophyly in Madagascar's mouse lemurs.
(PLoS One, 2010-03-31)BACKGROUND: Speciation begins when populations become genetically separated through a substantial reduction in gene flow, and it is at this point that a genetically cohesive set of populations attain the sole property of ... -
Differential Killing of Salmonella enterica Serovar Typhi by Antibodies Targeting Vi and Lipopolysaccharide O:9 Antigen.
(PLoS One, 2016)Salmonella enterica serovar Typhi expresses a capsule of Vi polysaccharide, while most Salmonella serovars, including S. Enteritidis and S. Typhimurium, do not. Both S. Typhi and S. Enteritidis express the lipopolysaccharide ... -
Dopamine receptors in a songbird brain.
(J Comp Neurol, 2010-03-15)Dopamine is a key neuromodulatory transmitter in the brain. It acts through dopamine receptors to affect changes in neural activity, gene expression, and behavior. In songbirds, dopamine is released into the striatal song ... -
Drosophila muller f elements maintain a distinct set of genomic properties over 40 million years of evolution.
(G3 (Bethesda, Md.), 2015-03-04)The Muller F element (4.2 Mb, ~80 protein-coding genes) is an unusual autosome of Drosophila melanogaster; it is mostly heterochromatic with a low recombination rate. To investigate how these properties impact the evolution ... -
Eco-evolutionary feedbacks in community and ecosystem ecology: interactions between the ecological theatre and the evolutionary play.
(Philos Trans R Soc Lond B Biol Sci, 2009-06-12)Interactions between natural selection and environmental change are well recognized and sit at the core of ecology and evolutionary biology. Reciprocal interactions between ecology and evolution, eco-evolutionary feedbacks, ... -
Elevational ranges of birds on a tropical montane gradient lag behind warming temperatures.
(PloS one, 2011-01)<h4>Background</h4>Species may respond to a warming climate by moving to higher latitudes or elevations. Shifts in geographic ranges are common responses in temperate regions. For the tropics, latitudinal temperature gradients ... -
Evidence for GC-biased gene conversion as a driver of between-lineage differences in avian base composition.
(Genome Biol, 2014)BACKGROUND: While effective population size (Ne) and life history traits such as generation time are known to impact substitution rates, their potential effects on base composition evolution are less well understood. GC ... -
Fatty acid composition of wild anthropoid primate milks.
(Comp Biochem Physiol B Biochem Mol Biol, 2008-01)Fatty acids in milk reflect the interplay between species-specific physiological mechanisms and maternal diet. Anthropoid primates (apes, Old and New World monkeys) vary in patterns of growth and development and dietary ... -
FoxP2 expression in avian vocal learners and non-learners.
(J Neurosci, 2004-03-31)Most vertebrates communicate acoustically, but few, among them humans, dolphins and whales, bats, and three orders of birds, learn this trait. FOXP2 is the first gene linked to human speech and has been the target of positive ...
