Publications

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organochlorine contamination in bird's eggs from the danube delta.in this study we report the levels of organochlorine compounds in eggs of aquatic birds from the danube delta, a major european wetland. the eggs were collected in 1997 and belonged to the following species: the mallard (anas platyrhynchos), the greylag goose (anser anser), the mute swan (cygnus olor), the coot (fulica atra), the glossy ibis (plegadis falcinellus), the spoonbill (platalea leucorodia), the little egret (egretta garzetta), the night heron (nycticorax nycticorax), the grey heron (a ...200015092913
avian influenza in wild waterfowl and shorebirds in the donana national park: serological survey using the enzyme-linked immunosorbent assay.the indirect elisa was used to detect antibodies to influenzavirus a in the sera of wildfowl from the donana national park. of the 712 birds examined, 44 (6.2%) were seropositive. positive birds belonged to 10 of the 13 species studied. infection rates varied widely: spoonbill (platalea leucorodia, 32.2%), mallard (anas platyrhynchos, 9.9%), gadwall (anas strepera, 8.6%), red-crested pochard (netta rufina, 8.1%), pochard (aythya ferina, 6.4%), shoveler (anas clypeata, 5%), great crested grebe (p ...199418671098
serosurvey of west nile virus and other flaviviruses of the japanese encephalitis antigenic complex in birds from andalusia, southern spain.abstract flaviviruses of the japanese encephalitis virus (jev) antigenic complex, including west nile virus (wnv), are recognized as emerging and reemerging pathogens. circulation of flaviviruses has been recently detected in different mosquito and vertebrate species in several european countries. a serosurvey study was carried out to evaluate the circulation of wnv and other flaviviruses of the jev antigenic complex in different wild bird species in spain between 2006 and 2009. seropositiviy ag ...201021142954
seropositivity and risk factors associated with toxoplasma gondii infection in wild birds from spain.toxoplasma gondii is a zoonotic intracellular protozoan parasite of worldwide distribution that infects many species of warm-blooded animals, including birds. to date, there is scant information about the seropositivity of t. gondii and the risk factors associated with t. gondii infection in wild bird populations. in the present study, t. gondii infection was evaluated on sera obtained from 1079 wild birds belonging to 56 species (including falconiformes (nā€Š=ā€Š610), strigiformes (nā€Š=ā€Š260), ciconi ...201122216311
composition, structure and pattern of helminth assemblages associated with central european storks (ciconiidae).the composition, structure and pattern of helminth assemblages associated with the storks (ciconiidae), ibises and spoonbills (threskiornithidae) are poorly understood. here we analyze the prevalence, intensity and diversity of the helminth component communities associated with the white stork ciconia ciconia and black stork ciconia nigra, and notice the findings of helminths on eurasian spoonbill platalea leucorodia and glossy ibis plegadis falcinellus obtained in the czech republic in years 19 ...201525462710
pathogenicity of avian influenza h11n1 virus isolated from wild aquatic bird eurasian spoonbill (platalea leucorodia). 201425027092
[effects of environmental factors on the distribution of dominant wintering waterfowl species in east dongting lake wetland, south-central china].east dongting lake is one of the national nature reserves in china, and an important habitat for the wintering of waterfowls in china, and even, global wetlands. to study the relationships between waterfowl community and environmental factors is of vital significance in providing useful data and necessary information for the restoration of bird habitat. in the winters of 2010 and 2011, a survey was conducted on the wintering waterfowls in east dongting lake wetland, and canonical correspondence ...201323705401
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 ...202032724513
avian tuberculosis in naturally infected captive water birds of the ardeideae and threskiornithidae families studied by serotyping, is901 rflp typing, and virulence for poultry.avian tuberculosis was detected in one flock of 38 water birds of the families ardeideae (n = 20) and threskiornithidae (n = 18). mycobacterium avium subsp. avium (maa, serotype 1, genotype is901+ and is1245+) was more often (p = 0.01) detected in tissue and/or faecal samples in 18 (90.0%) birds form the ardeideae family: little egret (egretta garzetta), buff-backed heron (bubulcus ibis), great white egret (egretta alba), and bittern (botaurus stellaris) in comparison to two (11.1%) birds from t ...200717056210
unexpected dietary preferences of eurasian spoonbills in the dutch wadden sea: spoonbills mainly feed on small fish not shrimp.after an historical absence, over the last decades eurasian spoonbills platalea leucorodia leucorodia have returned to breed on the barrier islands of the wadden sea. the area offers an abundance of predator-free nesting habitat, low degrees of disturbance, and an extensive intertidal feeding area with increasing stocks of brown shrimp crangon crangon, the assumed main prey of p. leucorodia leucorodia. nevertheless, newly established and expanding colonies of spoonbills have surprisingly quickly ...201830997317
an integrated model for assessing heavy metal exposure risk to migratory birds in wetland ecosystem: a case study in dongting lake wetland, china.heavy metal contamination is present in wetland ecosystem worldwide, and quantitative risk assessment model is significant. in this study, an exposure model was integrated for assessing heavy metal exposure risk to migratory birds in dongting lake wetland (dtw). the concentrations of cr, cu, pb, cd, hg and as in water, plant, soil and fish were investigated from 9 migratory bird habitats. the results showed that exposure doses from drinking water pathways were very low. there was a sensitive are ...201525876031
effects of water level changes and wading bird abundance on the foraging behaviour of blacknecked storks ephippiorhynchus asiaticus in dudwa national park, india.the effect of water level changes and wading birds' abundance on the foraging behaviour of the blacknecked stork (bns) ephippiorhynchus asiaticus was studied from january 1995 to june 1997 in dudwa national park, uttar pradesh. our observations indicate that bns territoriality increased as food levels became depleted, resulting in increased rates of aggression towards intruders. chasing or aggression was more intense during the early period (february and march) than the late period (april, may a ...200111568483
migration tendency delays distributional response to differential survival prospects along a flyway.when populations grow or decline, habitat selection may change due to local density-dependent processes, such as site dependence and interference. in seasonally migrating animals, nonbreeding distributions may be determined through these mechanisms of density dependence, which we examine here at a hemispheric scale for a long-distance migrating bird. using summer and winter resightings of 2,095 eurasian spoonbills platalea leucorodia leucorodia that were ringed in the netherlands during 16 years ...201323535616
seasonal variation in density dependence in age-specific survival of a long-distance migrant.density dependence in vital rates is key to population regulation. rather than being constant, the strength of density dependence may vary throughout the year, but empirical evidence is limited. based on 22 years of data of color-banded birds from a recovering population of eurasian spoonbills platalea leucorodia leucorodia, we show, for the first time, seasonal variation in density dependence in survival of a long-distance migrating bird. combining resightings and dead recoveries at breeding, s ...201324358720
the cost of migration: spoonbills suffer higher mortality during trans-saharan spring migrations only.explanations for the wide variety of seasonal migration patterns of animals all carry the assumption that migration is costly and that this cost increases with migration distance. although in some studies, the relationships between migration distance and breeding success or annual survival are established, none has investigated whether mortality during the actual migration increases with migration distance. here, we compared seasonal survival between eurasian spoonbills (platalea leucorodia leuc ...201525589489
conspecific and not performance-based attraction on immigrants drives colony growth in a waterbird.local recruitment and immigration play an important part in the dynamics and growth of animal populations. however, their estimation and incorporation into open population models is, in most cases, problematic. we studied factors affecting the growth of a recently established colony of eurasian spoonbill (platalea leucorodia) and assessed the contribution of local recruits, i.e. birds born in the colony, and immigrants, i.e. birds of unknown origin, to colony growth. we applied an integrated pop ...201728502084
an age-dependent fitness cost of migration? old trans-saharan migrating spoonbills breed later than those staying in europe, and late breeders have lower recruitment.migration is a widespread phenomenon in the animal kingdom. on the basis of the considerable variation that exists between and within species, and even within populations, we may be able to infer the (age- and sex-specific) ecological trade-offs and constraints moulding migration systems from assessments of fitness associated with migration and wintering in different areas. during three consecutive breeding seasons, we compared the reproductive performance (timing of breeding, breeding success, ...201728543867
stay-at-home strategy brings fitness benefits to migrants.in focus: lok, t., veldhoen, l., overdijk, o., tinbergen, j. m., & piersma, t. (2017). an age-dependent fitness cost of migration? old trans-saharan migrating spoonbills breed later than those staying in europe, and late breeders have lower recruitment. journal of animal ecology, 86, 998-1009. in focus: grist, h., daunt, f., wanless, s., burthe, s. j., newell, m. a., harris, m. p., & reid, j. m. (2017). reproductive performance of resident and migrant males, females and pairs in a partially migr ...201728797137
first records of the syringophilid mites (acariformes: prostigmata) parasitizing ibises and spoonbills (pelecaniformes: threskiornithidae), with description of four new species.the parasitic quill mites of the family syringophilidae (acariformes: prostigmata) are recorded on ibises and spoonbills (pelecaniformes: threskiornithidae) for the first time. four new species of the genus stibarokris kethley, 1970 are described: 1) s. theristicus skoracki, zmudzinski & unsoeld sp. nov. ex theristicus caudatus (boddaert, 1783) from brazil, 2) s. geronticus skoracki, zmudzinski & unsoeld sp. nov. ex geronticus calvus (boddaert, 1783) from south africa, 3) s. brevisetosus skorack ...201627647840
a revision of patagifer dietz, 1909 (digenea: echinostomatidae) and a key to its species.patagifer dietz, 1909 is revised and a key to the species is presented. p. oweni n. sp. is described from threskiornis molucca (cuvier) in the western province of papua new guinea and distinguished from the related p. chandrapuri srivastava, 1952 by: the shape of the pair of large angle spines (cudgel-shaped vs sub-rectangular); pointed (vs rod-shaped) marginal spines; a smaller body and internal organs; more anteriorly located testes; and larger eggs. the new species differs from p. brygooi ric ...200818535788
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