[three new nadejdolepis spasskii & sasskaya, 1954 (cestoda: hymenolepididae) parasites of charadrii (aves) from tasmania]. | three species of nadejdcolepis from tasmania, australia, are described and illustrated. n. burgessi n. sp., a parasite of charadrius ruficapillus, is 4-6 mm long, with rostellar nitiduloid hooks 63-66 microm long, a short evaginated cirrus 13-16 microm long with a short collar of thin spines 1 microm long, a narrow and tubular sclerotinoid vagina 40-50 long and 3-4 microm in diameter with a little ampulla 3-5 microm in diameter at the proximal end, and a membranous atrial segment with smooth, sh ... | 2001 | 11303538 |
the bright incubate at night: sexual dichromatism and adaptive incubation division in an open-nesting shorebird. | ornamentation of parents poses a high risk for offspring because it reduces cryptic nest defence. over a century ago, wallace proposed that sexual dichromatism enhances crypsis of open-nesting females although subsequent studies found that dichromatism per se is not necessarily adaptive. we tested whether reduced female ornamentation in a sexually dichromatic species reduces the risk of clutch depredation and leads to adaptive parental roles in the red-capped plover charadrius ruficapillus, a sp ... | 2015 | 25854884 |
equitable chick survival in three species of the non-migratory shorebird despite species-specific sexual dimorphism of the young. | sex-biases in populations can have important implications for species' social biology, population demography and mating systems. it has recently been suggested that in some shorebirds, sex-specific bias in survival of precocial young may occur. this may be driven by variation in the brood sex-ratio and/or the sexual size dimorphism of young birds, which may influence predator escape capacity. understanding the survival of young birds remains a significant knowledge gap for many taxa, especially ... | 2019 | 31126098 |