Parasites of gulls (Larus canus L. 1758 and L. ridibundus L. 1766) from Northern Karelia

Lebedeva, D. I.; Яковлева, Галина Анатольевна; Иешко, Евгений Павлович; Yakovleva, G. A.; Ieshko, E. P.

doi:10.17076/bg69

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…We stored representative specimens in the Comenius Museum collections (Přerov, Czechia). Some host-parasite records were previously described (Lebedeva et al 2015;Sitko 2017Sitko /2018Sitko and Heneberg 2020). Data on food fragments in the intestinal tract of the birds were used for the interpretation of results.…”

Section: Methodsmentioning

confidence: 99%

Severe decline in abundance of Cyathostoma lari, a parasite of the nasal and orbital sinuses of gulls, at their central European nesting grounds

Heneberg,

Sitko,

Yakovleva

et al. 2024

J. Helminthol.

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Cyathostoma lari is a parasite of the nasal and orbital sinuses of gulls and other hosts in Europe and Canada. Here, we provide an overview of previously published data on the prevalence and infection intensity of C. lari in gulls. Furthermore, based on our data, we analyze the spatiotemporal trends in the prevalence and intensity of infection by C. lari in Chroicocephalus ridibundus in Czechia (central Europe; data from 1964 to 2014) and compare them with those obtained from five species of gulls in Karelia (Northwest Russia; data from 2012–2020). Based on our preliminary observations, we hypothesized that C. lari is subject to a decline in certain regions, but this decline is not necessarily applicable throughout its distribution range. We found that the C. lari population crashed in specific parts of its distribution range. The reasons are unknown, but the observed population changes correspond with the diet switch of their core host in Czechia, C. ridibundus. We previously observed a diet switch in Czech C. ridibundus from earthworms (intermediate hosts of C. lari) to other types of food. This diet switch affected both young and adult birds. Nevertheless, it may not necessarily affect populations in other regions, where they depend less on earthworms collected from agrocenoses affected by agrochemicals and trampling. Correspondingly, we found that these changes were limited only to regions where the gulls feed (or fed) on arable fields. In Karelia, where arable fields are scarce, gulls likely continue to feed on earthworms and still display high infection rates by C. lari. Therefore, C. lari, a parasite of the nasal and orbital sinuses of gulls, nearly disappeared from their central European nesting grounds but is still present in better-preserved parts of its distribution range.

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Section: Methodsmentioning

confidence: 99%

Severe decline in abundance of Cyathostoma lari, a parasite of the nasal and orbital sinuses of gulls, at their central European nesting grounds

Heneberg,

Sitko,

Yakovleva

et al. 2024

J. Helminthol.

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Helminths of the black-headed gull (Chroicocephalus ridibundus) from breeding colonies in north-central Poland

Stapf,

Rząd,

Królaczyk

et al. 2024

Sci Rep

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Among parasites of the digestive tract of the black-headed gull (Chroicocephalus ridibundus) in Poland, the best known are species of digenetic trematodes and cestodes. Nematodes of this bird species are not well known. Black-headed gulls, due to their varied diet, migration, life in a flock, and changes of habitat, can become infected with various species of helminths, and like synanthropic birds, they can spread the dispersal stages of parasites across urban and recreational areas. In the present study, an attempt was made to identify the helminth fauna of C. ridibundus from breeding colonies in north-central Poland. The aim of the study was to describe the taxonomic structure of parasites of the digestive tract of the black-headed gull and determine the quantitative parameters of their occurrence. A total of 43 black-headed gulls were examined post-mortem for gastrointestinal helminths, resulting in the identification of four cestodes (Paricterotaenia porosa, Lateriporus clerci, Anomotaenia micracantha, and Wardium fusum), three trematodes (Diplostomum pseudospathaceum, Plagiorchis laricola, and Apophallus muehlingi), and three nematodes (Eucoleus contortus, Cosmocephalus obvelatus, and Porrocaecum ensicaudatum). Lateriporus clerci (in adult form), C. obvelatus and P. ensicaudatum (in larval form) were recorded for the first time in the black-headed gull in Poland.

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Parasites of Common (Sterna hirundo) and Arctic (Sterna paradisaea) Terns (Charadriiformes, Laridae) in Karelia

Lebedeva

Yakovleva

Artem’ev

2020

Biol Bull Russ Acad Sci

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Parasites of gulls (Larus canus L. 1758 and L. ridibundus L. 1766) from Northern Karelia

Cited by 3 publications

References 2 publications

Severe decline in abundance of Cyathostoma lari, a parasite of the nasal and orbital sinuses of gulls, at their central European nesting grounds

Severe decline in abundance of Cyathostoma lari, a parasite of the nasal and orbital sinuses of gulls, at their central European nesting grounds

Helminths of the black-headed gull (Chroicocephalus ridibundus) from breeding colonies in north-central Poland

Parasites of Common (Sterna hirundo) and Arctic (Sterna paradisaea) Terns (Charadriiformes, Laridae) in Karelia

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