| 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 |
| impacts of disturbance from construction work on the densities and feeding behavior of waterbirds using the intertidal mudflats of cardiff bay, uk. | the impact of disturbance from construction work around cardiff bay, south wales, on the densities and feeding behavior of seven waterbird species was studied over an 11-year period. construction of a barrage across the mouth of the bay has subsequently resulted in its impoundment; other major works included the construction of a bridge carrying a divided highway. construction work disturbance significantly reduced the densities of five species--green-winged teal (anas crecca), eurasian oysterca ... | 2002 | 12402100 |
| foot preferences during resting in wildfowl and waders. | footedness in birds has been reported, e.g., in parrots and chickens, but the direction of footedness remained unclear. is a bird left-footed because it uses its left foot for holding and handling food, or is it right-footed because it uses the right foot for stabilisation and balancing while perching? in 2004 and 2006 i examined footedness in wildfowl and waders while the birds were performing a single task: roosting on the ground on one foot. avocet (recurvirostra avosetta), northern shoveller ... | 2007 | 17365634 |
| how well do food distributions predict spatial distributions of shorebirds with different degrees of self-organization? | 1. habitat selection models usually assume that the spatial distributions of animals depend positively on the distributions of resources and negatively on interference. however, the presence of conspecifics at a given location also signals safety and the availability of resources. this may induce followers to select contiguous patches and causes animals to cluster. resource availability, interference and attraction therefore jointly lead to self-organized patterns in foraging animals. 2. we anal ... | 2010 | 20337758 |
| new records of digenean flukes (trematoda) in birds in poland. | eleven new records of digenean species are reported in birds in poland, i.e. tylodelphys immer found in gavia stellata, strigea vanderbrokae in pernis apivorus, echinostoma academica in numenius arquata, echinochasmus euryporus in buteo buteo, patagifer parvispinosus and petasiger grandivesicularis in tachybaptus ruficollis, notocotyloides petasatus in calidris alpina, plagiorchis arcuatus in corvus cornix, leyogonimus polyoon in gallinula chloropus and fulica atra, lyperosomum alaudae in sylvia ... | 2010 | 20450011 |
| 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 |
| short-term effects of reclamation of part of seal sands, teesmouth, on wintering waders and shelduck : i. shorebird diets, invertebrate densities, and the impact of predation on the invertebrates. | the invertebrate macrofauna of seal sands, teesmouth, is very limited in species composition. nereis diversicolor has a two-year life cycle; the larger size-class provides the main prey of the birds pluvialis squatarola, numenius arquata and limosa lapponica. hydrobia ulvae is an important food of p. squatarola and calidris canutus. small carcinus maenas occur in late autumn and are taken by the larger shorebirds. small macoma balthica are also taken, but are scarce and not an important bird foo ... | 1979 | 28308862 |
| predator presence may benefit: kestrels protect curlew nests against nest predators. | we studied whether the presence of breeding kestrels (falco tinnunculus) affected nest predation and breeding habitat selection of curlews (numenius arquata) on an open flat farmland area in western finland. we searched for nests of curlews from an area of 6 km(2) during 1985-1993. for each nest found, we recorded the fate of the nest, and the distance to the nearest kestrel nest and to the nearest perch. we measured the impact of breeding kestrels on nest predation by constructing artificial cu ... | 1995 | 28306982 |
| pcb burden and pattern in eggs of the curlew (numenius arquata) and the black-tailed godwit (limosa limosa) from northwest germany. | | 1995 | 8601069 |
| limited effects of heavy metal pollution on foraging and breeding success in the curlew (numenius arquata). | we examined the effect of heavy metal pollution on the foraging success and breeding performance of the curlew (numenius arquata) along a documented pollution gradient from a point source, and also by comparing foraging and breeding parameters between the polluted site and two non-polluted areas. prey biomass and abundance, and foraging success did not vary along the pollution gradient, and were no less at the polluted site than in the non-polluted areas. furthermore, there was no difference in ... | 1998 | 15093087 |
| predation on artificial, solitary and aggregated wader nests on farmland. | predation rates on artificial wader nests, solitary curlew (numenius arquata) and lapwing (vanellus vanellus) nests and lapwing nests in colonies were studied on a farmland site in central sweden. predation rates were highest on artificial wader nests, intermediate on solitary curlew and lapwing nests and lowest on lapwing nests in colonies, probably because of active defence of adults at real nests and/or because of selection of nest sites with lower predation risk by breeding birds. a comparis ... | 1996 | 28307262 |
| phylogenetic position of the presumably extinct slender-billed curlew, numenius tenuirostris. | the high-capacity dna analysis of museum samples opens new opportunities, associated with the investigation of extinct species evolution. here, the complete mitochondrial genome of the presumably extinct bird species, the slender-billed curlew numenius tenuirostris (charadriiformes: scolopacidae) is presented. our results showed that mitochondrial dna (mtdna) is 16,705 base pairs (bp) in length and contain 13 protein-coding genes, two rrna genes, and 22 trna genes. the overall base composition o ... | 2019 | 30968730 |
| population genomics of two congeneric palaearctic shorebirds reveals differential impacts of quaternary climate oscillations across habitats types. | intracontinental biotic divisions across the vast palaearctic region are not well-characterized. past research has revealed patterns ranging from a lack of population structure to deep divergences along varied lines of separation. here we compared biogeographic patterns of two palaearctic shorebirds with different habitat preferences, whimbrel (numenius phaeopus) and eurasian curlew (n. arquata). using genome-wide markers from populations across the palaearctic, we applied a multitude of populat ... | 2019 | 31796810 |
| the influence of different aspects of grouse moorland management on nontarget bird assemblages. | conflict between stakeholders with opposing interests can hamper biodiversity conservation. when conflicts become entrenched, evidence from applied ecology can reveal new ways forward for their management. in particular, where disagreement exists over the efficacy or ethics of management actions, research clarifying the uncertain impacts of management on wildlife can move debates forwards to conciliation.here, we explore a case-study of entrenched conflict where uncertainty exists over the impac ... | 2019 | 31641457 |