sex differences in digestive traits in sexually size-dimorphic birds: insights from an assimilation efficiency experiment on black-tailed godwit. | digestive assimilation efficiency is considered a trait with important implications for animal ecology. however, practically all studies have ignored the importance of sex differences in food assimilation efficiency (ae). here, we investigated sex differences in dietary and physiological parameters in the black-tailed godwit limosa limosa limosa feeding on rice seeds, a species with sexual dimorphism in body size and body mass. gross daily food intake, gross energy intake, gross energy output an ... | 2009 | 19166959 |
characterization of polymorphic microsatellite dna markers in the black-tailed godwit (limosa limosa: aves). | we isolated and tested 16 microsatellite loci in black-tailed godwits from the netherlands (limosa limosa limosa), and from australasia (subspecies melanuroides). one locus was monomorphic, two loci had null-alleles and one was significantly heterozygote deficient. the remaining 12 polymorphic loci had on average 7.9 alleles (range 5-11) and the mean expected heterozygosity was 0.69. no significant linkage disequilibrium between the loci was observed and all loci were autosomal. fourteen loci we ... | 2009 | 21564924 |
wetland salinity induces sex-dependent carry-over effects on the individual performance of a long-distance migrant. | salinization is having a major impact on wetlands and its biota worldwide. specifically, many migratory animals that rely on wetlands are increasingly exposed to elevated salinity on their nonbreeding grounds. experimental evidence suggests that physiological challenges associated with increasing salinity may disrupt self-maintenance processes in these species. nonetheless, the potential role of salinity as a driver of ecological carry-over effects remains unstudied. here, we investigated the ex ... | 2017 | 28761120 |
does wintering north or south of the sahara correlate with timing and breeding performance in black-tailed godwits? | migrating long distances requires time and energy, and may interact with an individual's performance during breeding. these seasonal interactions in migratory animals are best described in populations with disjunct nonbreeding distributions. the black-tailed godwit (limosa limosa limosa), which breeds in agricultural grasslands in western europe, has such a disjunct nonbreeding distribution: the majority spend the nonbreeding season in west africa, while a growing number winters north of the sah ... | 2017 | 28428871 |
when siberia came to the netherlands: the response of continental black-tailed godwits to a rare spring weather event. | 1. extreme weather events have the potential to alter both short- and long-term population dynamics as well as community- and ecosystem-level function. such events are rare and stochastic, making it difficult to fully document how organisms respond to them and predict the repercussions of similar events in the future. 2. to improve our understanding of the mechanisms by which short-term events can incur long-term consequences, we documented the behavioural responses and fitness consequences for ... | 2015 | 26033015 |