| gas conductance and metabolism of shorebird eggs: variation within and between species. | fresh egg mass (m0; g), water vapor conductance of the egg shell (gh2o; mg.[torr.d]-1), and neonate mass (mn; g) were measured in the ruff (philomachus pugnax), common redshank (tringa totanus), northern lapwing (vanellus vanellus), black-tailed godwit (limosa limosa), and eurasian curlew (numenius arquata). in addition, the development of embryonic o2 consumption (mo2; ml.d-1) and co2 production (mco2; ml.d-1) were measured in these species, except the ruff. in northern lapwing and black-tailed ... | 1995 | 7777710 |
| impacts of man-made landscape features on numbers of estuarine waterbirds at low tide. | the potential impact of human disturbance on wintering waterbirds using intertidal mudflats was considered by relating their numbers to the presence of nearby footpaths, roads, railroads, and towns. data were obtained for six english estuaries from the wetland bird survey low tide count scheme. counts were undertaken monthly from november to february, and data were available for an average of 2.8 years per estuary for the period 1992-1993 to 1999-2000. count sections and the positions of man-mad ... | 2002 | 12402099 |
| transfer of heavy metals in the food chain earthworm black-tailed godwit (limosa limosa): comparison of a polluted and a reference site in the netherlands. | the black-tailed godwit (limosa limosa) is a migratory wader that favours wet meadows for breeding. the species has a red list status in the netherlands, as it strongly declined in numbers since the 1960s. intensification of agriculture and land use change resulting in habitat loss are considered major causes of this decline. in some areas the breeding habitat is contaminated with heavy metals. adult godwits mainly feed on earthworms in the breeding season, which are known to accumulate heavy me ... | 2008 | 18752837 |
| 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 |
| [community composition, seasonal dynamics and interspecific correlation of waterbirds in the qiantangjiang river estuary and hangzhou bay]. | waterbird surveys were conducted regularly in the qiantangjiang river estuary and hangzhou bay from july 2007 to november 2011. a total of 128 species (nine orders and 18 families) were recorded, including 119 migrants which accounted for 93% of the total species; eleven species were listed as national protected species. inter-specific correlation analysis for 13 shorebird populations and nine duck populations recorded over time found that 21 pairs of shorebirds and 23 pairs of ducks were correl ... | 2011 | 22184022 |
| shorebird community variations indicative of a general perturbation in the mont-saint-michel bay (france). | the mont-saint-michel bay located on the east atlantic flyway is the first site in france for wintering shorebirds, with, on average, 53,000 individuals in january. seven species represent 96% of that community: dunlin (calidris alpina), knot (calidris canutus), oystercatcher (haematopus ostralegus), curlew (numenius arquata), grey plover (pluvialis squatarola), bar-tailed godwit (limosa lapponica) and black-tailed godwit (limosa limosa). the international bird census organised by wetlands inter ... | 2003 | 14558463 |
| evidence of species-specific detoxification processes for trace elements in shorebirds. | this study investigated sub-lethal effects and detoxification processes activated in free-ranging red knots (rks) (calidris canutus) from the pertuis charentais on the atlantic coast of france, and compared the results with previous data obtained on another shorebird species, the black-tailed godwit (limosa limosa). the concentrations of 13 trace elements (ag, as, cd, co, cr, cu, fe, hg, mn, ni, pb, se, zn) were assessed in the liver, kidneys, muscle and feathers. stable isotope analyses of carb ... | 2012 | 23001427 |
| genetic identification for prey birds of the endangered peregrine falcon (falco peregrinus). | to reveal the dietary ecology of the peregrine falcon (falco peregrinus), we conducted a molecular analysis for mitochondrial genes (coi and cytb) to identify the prey species collected from a feeding place found on sasu island, south korea. the results from noninvasive genetic analysis showed that the sequences obtained came from nine species of birds (cuculus canorus, eurystomus orientalis, limosa limosa, microscelis amaurotis, oriolus chinensis, phasianus colchicus, sterna hirundo, streptopel ... | 2017 | 28071972 |
| diversity of cloacal microbial community in migratory shorebirds that use the tagus estuary as stopover habitat and their potential to harbor and disperse pathogenic microorganisms. | the diversity of the cloacal microbial community in migratory shorebirds, caught at the tagus estuary, portugal, was assessed by cultivation (r2a and nutrient agar media) and denaturing gradient gel electrophoresis profiling (dgge) to provide a better understanding of the birds' potential to harbor and disperse pathogens. three different bird species belonging to four different populations were studied: common redshank (tringa totanus), black-winged stilt (himantopus himantopus) and nominate and ... | 2012 | 22571242 |
| consistent annual schedules in a migratory shorebird. | many migratory birds start prebreeding moult and premigratory fuelling some months before the breeding season and face severe time constraints, while travelling up to 15,000 km between non-breeding and breeding grounds. shorebirds typically leave southern hemisphere non-breeding areas over a 3-4 week period, but whether they benefit from interannually consistent timing of departure is unknown. here, i show that individual bar-tailed godwits (limosa limosa baueri) from new zealand are highly cons ... | 2006 | 17148277 |
| 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 |
| characterization of mhc class i in a long distance migratory wader, the icelandic black-tailed godwit. | the major histocompatibility complex (mhc) encodes proteins that are central for antigen presentation and pathogen elimination. mhc class i (mhc-i) genes have attracted a great deal of interest among researchers in ecology and evolution and have been partly characterized in a wide range of bird species. so far, the main focus has been on species within the bird orders galliformes and passeriformes, while charadriiformes remain vastly underrepresented with only two species studied to date. these ... | 2017 | 28534224 |
| 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 |
| metabolic plasticity for subcutaneous fat accumulation in a long-distance migratory bird traced by (2)h2o. | the migrant black-tailed godwit (limosa limosa) traditionally used natural wetlands in the iberian peninsula to prepare for migratory flights by feeding mainly in estuaries. in recent decades, this species has become increasingly dependent on rice fields, thereby relying on a plant-based diet for fuelling. dietary fatty acids (fa) seem to be determinant to the composition of accumulated subcutaneous fat in migratory birds. it is still unclear whether metabolic plasticity allows for modification ... | 2017 | 28082618 |
| 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 |
| patterns in nuclear and mitochondrial dna reveal historical and recent isolation in the black-tailed godwit (limosa limosa). | on the basis of morphological differences, three subspecies of black-tailed godwit (limosa limosa) have been recognized (l. l. limosa, l. l. islandica and l. l. melanuroides). in previous studies mitochondrial dna (mtdna) sequence data showed minimal genetic divergence between the three subspecies and an absence of sub-structuring within l. l. limosa. here, population genetic structure and phylogeographic patterns have been analyzed using coi, hvr1 and hvr2 mtdna sequence data as well as 12 micr ... | 2014 | 24416186 |
| sex-biases in distribution and resource use at different spatial scales in a migratory shorebird. | in migratory species, sexual size dimorphism can mean differing energetic requirements for males and females. differences in the costs of migration and in the environmental conditions occurring throughout the range may therefore result in sex-biases in distribution and resource use at different spatial scales. in order to identify the scale at which sexual segregation operates, and thus the scale at which environmental changes may have sex-biased impacts, we use range-wide tracking of individual ... | 2013 | 23610645 |
| sex promotes spatial and dietary segregation in a migratory shorebird during the non-breeding season. | several expressions of sexual segregation have been described in animals, especially in those exhibiting conspicuous dimorphism. outside the breeding season, segregation has been mostly attributed to size or age-mediated dominance or to trophic niche divergence. regardless of the recognized implications for population dynamics, the ecological causes and consequences of sexual segregation are still poorly understood. we investigate the foraging habits of a shorebird showing reversed sexual dimorp ... | 2012 | 22479448 |
| insight on trace element detoxification in the black-tailed godwit (limosa limosa) through genetic, enzymatic and metallothionein analyses. | trace element concentrations (ag, as, cd, co, cr, cu, fe, hg, mn, ni, pb, se, zn) were investigated in the liver, kidneys, muscle and feathers of 31 black-tailed godwits (limosa limosa) accidentally killed during catches by mist net in the pertuis charentais, atlantic coast of france. analyses of carbon and nitrogen stable isotope ratios were carried out in liver, muscle and feathers in order to elucidate dietary patterns and to determine whether differences in diet explained the variation in el ... | 2012 | 22421087 |
| rapid changes in phenotype distribution during range expansion in a migratory bird. | the capacity of species to track changing environmental conditions is a key component of population and range changes in response to environmental change. high levels of local adaptation may constrain expansion into new locations, while the relative fitness of dispersing individuals will influence subsequent population growth. however, opportunities to explore such processes are rare, particularly at scales relevant to species-based conservation strategies. icelandic black-tailed godwits, limosa ... | 2012 | 21715406 |
| site selection and resource depletion in black-tailed godwits limosa l. limosa eating rice during northward migration. | 1. during migratory stopovers, animals are under strong time stress and need to maximize intake rates. we examine how foragers react to resource depletion by studying the foraging ecology and foraging site selection of black-tailed godwits limosa l. limosa staging in rice fields during their northward migration stopover (january-march 2007). 2. we analysed godwit abundance and foraging behaviour, sampled the availability of rice in the fields and used the functional response model to predict the ... | 2010 | 20070431 |
| passive internal dispersal of insect larvae by migratory birds. | it has long been assumed that the resistant eggs of many zooplankton are able to survive passage through the gut of migratory waterbirds, thus facilitating their dispersal between isolated aquatic habitats. we present the first evidence that such passive internal transport within birds may be relevant for insect populations. in three out of six faecal samples from black-tailed godwits on autumn migration in southwest spain, we found larvae of the chironomid chironomus salinarius which had surviv ... | 2006 | 17148325 |
| population-scale drivers of individual arrival times in migratory birds. | 1. in migratory species, early arrival on the breeding grounds can often enhance breeding success. timing of spring migration is therefore a key process that is likely to be influenced both by factors specific to individuals, such as the quality of winter and breeding locations and the distance between them, and by annual variation in weather conditions before and during migration. 2. the icelandic black-tailed godwit limosa limosa islandica population is currently increasing and, throughout ice ... | 2006 | 16922847 |
| population growth and development of the earthworm lumbricus rubellus in a polluted field soil: possible consequences for the godwit (limosa limosa). | many soils are polluted with mixtures of moderate levels of contaminants. in the netherlands 175,000 sites in rural areas are classified as highly polluted. however, it remains unclear to what extent local ecosystems are endangered. in this paper, we report on the effect of contaminants on earthworms in a meadow system. we tested a polluted and a reference field soil with similar soil characteristics and agricultural use. in the polluted soil copper, mercury, and lead were elevated by more than ... | 2006 | 16494244 |
| seasonal matching of habitat quality and fitness in a migratory bird. | when species occupy habitats that vary in quality, choice of habitat can be critical in determining individual fitness. in most migratory species, juveniles migrate independently of their parents and must therefore choose both breeding and winter habitats. using a unique dataset of marked black-tailed godwits (limosa limosa islandica) tracked throughout their migratory range, combined with analyses of stable carbon isotope ratios, we show that those individuals that occupy higher quality breedin ... | 2005 | 16191646 |
| pair bonds: arrival synchrony in migratory birds. | synchronous arrival of pairs of migratory birds at their breeding grounds is important for maintaining pair bonds and is achieved by pairs that remain together all year round. here we show that arrival is also synchronized in paired individuals of a migratory shorebird, the black-tailed godwit (limosa limosa islandica), even though they winter hundreds of kilometres apart and do not migrate together. the mechanisms required to achieve this synchrony and prevent 'divorce' illustrate the complexit ... | 2004 | 15470417 |
| the buffer effect and large-scale population regulation in migratory birds. | buffer effects occur when sites vary in quality and fluctuations in population size are mirrored by large changes in animal numbers in poor-quality sites but only small changes in good-quality sites. hence, the poor sites 'buffer' the good sites, a mechanism that can potentially drive population regulation if there are demographic costs of inhabiting poor sites. here we show that for a migratory bird this process can apply on a country-wide scale with consequences for both survival and timing of ... | 2001 | 11473317 |
| depletion models can predict shorebird distribution at different spatial scales. | predicting the impact of habitat change on populations requires an understanding of the number of animals that a given area can support. depletion models enable predictions of the numbers of individuals an area can support from prey density and predator searching efficiency and handling time. depletion models have been successfully employed to predict patterns of abundance over small spatial scales, but most environmental change occurs over large spatial scales. we test the ability of depletion ... | 2001 | 11270433 |
| validation of the doubly labeled water method in growing precocial birds: the importance of assumptions concerning evaporative water loss. | the doubly labeled water (dlw) method was validated against respiration gas analysis in growing precocial chicks of the black-tailed godwit (limosa limosa) and the northern lapwing (vanellus vanellus). to calculate the rate of co2 production from dlw measurements, lifson and mcclintock's equations (6) and (35) were employed, as well as speakman's equation (7.17) (all single-pool models). the average errors obtained with the first two equations (+7.2% and -11.6%, respectively) differed significan ... | 2015 | 10603338 |
| pcb burden and pattern in eggs of the curlew (numenius arquata) and the black-tailed godwit (limosa limosa) from northwest germany. | | 1995 | 8601069 |
| mortality limits used in wind energy impact assessment underestimate impacts of wind farms on bird populations. | the consequences of bird mortality caused by collisions with wind turbines are increasingly receiving attention. so-called acceptable mortality limits of populations, that is, those that assume that 1%-5% of additional mortality and the potential biological removal (pbr), provide seemingly clear-cut methods for establishing the reduction in population viability.we examine how the application of these commonly used mortality limits could affect populations of the common starling, black-tailed god ... | 2020 | 32724513 |
| does intensive goose grazing affect breeding waders? | increasing goose population sizes gives rise to conflicts with human socioeconomic interests and in some circumstances conservation interests. grazing by high abundances of geese in grasslands is postulated to lead to a very short and homogeneous sward height negatively affecting cover for breeding meadow birds and impacting survival of nests and chicks. we studied the effects of spring grazing barnacle geese branta leucopsis and brent geese branta bernicla on occupancy of extensively farmed fre ... | 2019 | 31938537 |
| flexible behavior of the black-tailed godwit limosa limosa is key to successful refueling during staging at rice paddy fields in midwestern korea. | successful refueling at staging sites is essential for the survival and reproduction of migratory birds. understanding their staging ecology is therefore crucial for the conservation of migrant species. rice fields in the mid-western region of the korean peninsula serve as staging habitats for the black-tailed godwit (limosa limosa). we examined the behavior of staging black-tailed godwits in rice fields located in the east asian-australasian flyway during their northward migration. specifically ... | 2020 | 32549539 |
| adverse wind conditions during northward sahara crossings increase the in-flight mortality of black-tailed godwits. | long-distance migratory flights are predicted to be associated with higher mortality rates when individuals encounter adverse weather conditions. however, directly connecting environmental conditions experienced in-flight with the survival of migrants has proven difficult. we studied how the in-flight mortality of 53 satellite-tagged black-tailed godwits (limosa limosa limosa) during 132 crossings of the sahara desert, a major geographical barrier along their migration route between the netherla ... | 2019 | 31529603 |
| understanding how birds rebuild fat stores during migration: insights from an experimental study. | mechanisms underlying fat accumulation for long-distance migration are not fully understood. this is especially relevant in the context of global change, as many migrants are dealing with changes in natural habitats and associated food sources and energy stores. the continental black-tailed godwit limosa limosa limosa is a long-distance migratory bird that has undergone a considerable dietary shift over the past few decades. historically, godwits fed on an animal-based diet, but currently, durin ... | 2019 | 31296911 |
| natal habitat and sex-specific survival rates result in a male-biased adult sex ratio. | the adult sex ratio (asr) is a crucial component of the ecological and evolutionary forces shaping the dynamics of a population. although in many declining populations asrs have been reported to be skewed, empirical studies exploring the demographic factors shaping asrs are still rare. in this study of the socially monogamous and sexually dimorphic black-tailed godwit (limosa limosa limosa), we aim to evaluate the sex ratio of chicks at hatch and the subsequent sex-specific survival differences ... | 2020 | 31210724 |
| linking warming effects on phenology, demography, and range expansion in a migratory bird population. | phenological changes in response to climate change have been recorded in many taxa, but the population-level consequences of these changes are largely unknown. if phenological change influences demography, it may underpin the changes in range size and distribution that have been associated with climate change in many species. over the last century, icelandic black-tailed godwits (limosa limosa islandica) have increased 10-fold in numbers, and their breeding range has expanded throughout lowland ... | 2019 | 30891186 |
| warming springs and habitat alteration interact to impact timing of breeding and population dynamics in a migratory bird. | in seasonal environments, increasing spring temperatures lead many taxa to advance the timing of reproduction. species that do not may suffer lower fitness. we investigated why black-tailed godwits (limosa limosa limosa), a ground-breeding agricultural grassland shorebird, have not advanced timing of reproduction during the last three decades in the face of climate change and human-induced habitat degradation. we used data from an 11-year field study to parameterize an integral projection model ... | 2018 | 30144224 |
| high-altitude shorebird migration in the absence of topographical barriers: avoiding high air temperatures and searching for profitable winds. | nearly 20% of all bird species migrate between breeding and nonbreeding sites annually. their migrations include storied feats of endurance and physiology, from non-stop trans-pacific crossings to flights at the cruising altitudes of jetliners. despite intense interest in these performances, there remains great uncertainty about which factors most directly influence bird behaviour during migratory flights. we used gps trackers that measure an individual's altitude and wingbeat frequency to track ... | 2018 | 30051848 |
| generational shift in spring staging site use by a long-distance migratory bird. | in response to environmental change, species have been observed altering their migratory behaviours. few studies, however, have been able to determine whether these alterations resulted from inherited, plastic or flexible changes. here, we present a unique observation of a rapid population-level shift in migratory routes-over 300 km from spain to portugal-by continental black-tailed godwits limosa limosa limosa this shift did not result from adult godwits changing staging sites, as adult site us ... | 2018 | 29445041 |
| tracing changes in the diet and habitat use of black-tailed godwits in western france, using a stable isotope approach. | western france is at the crossroads of the migratory routes of two subspecies of black-tailed godwit, limosa limosa. after leaving iceland, the godwit l.l. islandica icelandic black-tailed godwit (ibtg) winters on the coast of western europe, while the continental black-tailed godwit (cbtg) l.l. limosa can stop in france when migrating between iberia or africa and their main breeding grounds in the netherlands. in this study, we analysed δ15n and δ13c from flight feathers and whole blood through ... | 2018 | 29415566 |