Among the Type II pyrethroids, the ratio (R cis1/cis2) did not indicate the preference of any isomer, except in the Gadwall, an aquatic species (anseriform), the only herbivore studied, which presented an enrichment of the cis 2 isomer.

Body condition, ovarian hierarchies, and their relation to egg formation in anseriform and galliform species.

The objective of this study was to evaluate the effects of stress (as measured by total heterophil + eosinophil counts [THECs] and plasma corticosterone [PC] levels) on plasma protein electrophoresis (PPE) in 2 Anseriform species.

Aspects of the functional morphology of the ductus epididymidis in domestic anseriform and galliform birds.

Conversions to biomass.--For fox scats, we used information in Lockie (1959), Goszczynski (1974), and Reynolds and Aebischer (1991) to provide the following multiplicative factors to convert total mass of undigested remains by species (mammals) or order (birds) to biomass of prey eaten: voles (23), ground squirrels (45), large mammals such as caribou and grizzly bear (100), passeriform and charadriiform ("small") birds (45), anseriform and galliform ("large") birds (61), and eggshell (9.1).

Relatively few wild avian species, rather than anseriform species as a whole, may have contributed to most of the spread of HPAI (H5N1) within Eurasia.

A phylogenetic analysis of recent anseriform genera using morphological characters Auk 103:737-754.

Antimicrobial activity of the Anseriform outer eggshell and cuticle.

It has been identified in some anseriform birds and reptiles the truncated form of IgY, with evolutionary origins still unknown (OTA et al., 2003).