Sentence examples for changes in the avian from inspiring English sources

Model predictions also need to incorporate changes in the avian predator community as they are typically the dominant factor affecting ptarmigan survival throughout the year [ 23, 32, 33].

A shift of the receptor-binding specificity of the avian virus HA from Neu5Acα2-3Gal recognitoon to Neu5Acα2-6Gal recognition is thought to be a prerequisite for the generation of pandemic viruses [ 25, 26, 47], however, no functional changes in the avian NAs of 1918 and 1957 viruses have been identified so far.

Recent human infections by H5N1, H7N7 and H9N2 avian influenza viruses raise fears of a new pandemic and highlight the lack of full understanding of adaptive changes in the avian virus genes required for the emergence of a pandemic virus [ 12, 37].

Therefore in order to monitor changes in the recent avian H2-subtype viruses that would possibly lead to their human-adaptation, it is important to understand the mutations in their HA that would confer human receptor-binding affinity that is quantitatively in the same range as that of HA from the 1957-58 human-adapted H2N2 pandemic viruses.

The hypothesis that host-feeding patterns are due to seasonal changes in the abundance of avian hosts was not supported by field data from Florida [3].

We do not intend to put too much stock in interpreting the changes in particular avian families over the time period we studied as these data are correlational and many other factors could have changed in these counties from 1998 to 2002.

To assess morphological changes which have occurred in the avian leg due to selection for rapid growth and high meat yields, divergent lines of chicken (Gallus gallus) and duck (Anas platyrhynchos) were studied between 3 and 7 weeks of age.

At the same time, because of the serious pathological changes in the livers, we detected Avian HEV firstly.

In summary, this study represents the most comprehensive appraisal of changes in overall avian genome structure hitherto reported.

The number and species of dead birds examined each month varied, reflecting seasonal changes in local avian abundance and deaths, interest of the local citizens in reporting dead birds, winter bird migration into the region, and limits in our ability to process samples.

Here, we suggest that climate-induced changes in the marine fauna extend to the avian fauna, and so also to the terrestrial food web around seabird colonies.