On pair-formation in the Sand Martin,Riparia riparia

Kuhnen, Kurt

doi:10.1007/bf01640439

Cited by 8 publications

(4 citation statements)

References 12 publications

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“…The light data records from geolocators further indicated that sand martins changed roosting behaviour within the annual cycle: on migration and during the nonbreeding period they usually roost outside from cavities (this study), often in reed beds and shrubs along water bodies [ 23 , 26 ] – habitats typically associated with high densities of haematophagous insects. In contrast, during breeding, especially during the incubation period adults of both sexes regularly stay overnight in breeding cavities ([ 26 , 39 ], only for females: this study). A nocturnal exposure to the open environment may increase the risk of being attacked by crepuscular and nocturnal haematophagous insects, which are the vectors of avian blood parasites [ 2 , 40 ].…”

Section: Discussionmentioning

confidence: 99%

Spatially different annual cycles but similar haemosporidian infections in distant populations of collared sand martins

Hahn¹,

Briedis²,

Barboutis³

et al. 2021

BMC Zool

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Background Populations of long-distance migratory birds experience different environments and are consequently exposed to different parasites throughout their annual cycles. Though, specific whereabouts and accompanied host-parasite interactions remain unknown for most migratory passerines. Collared sand martins (Riparia riparia) breeding in the western Palaearctic spend the nonbreeding period in Africa, but it is not yet clear whether specific populations differ in overwintering locations and whether these also result in varying infections with vector-transmitted endoparasites. Results Geolocator tracking revealed that collared sand martins from northern-central and central-eastern Europe migrate to distant nonbreeding sites in West Africa and the Lake Chad basin in central Africa, respectively. While the ranges of these populations were clearly separated throughout the year, they consistently spent up to 60% of the annual cycle in Africa. Ambient light recorded by geolocators further indicated unsheltered roosting during the nonbreeding season in Africa compared to the breeding season in Europe. We found 5–26% prevalence of haemosporidian parasites in three breeding populations and one migratory passage population that was only sampled but not tracked. In total, we identified seven Plasmodium and nine Haemoproteus lineages (incl. two and seven new lineages, respectively), the latter presumably typical for swallows (Hirundinae) hosts. 99.5% of infections had a low intensity, typical for chronic infection stages, whereas three individuals (0.5%) showed high parasitaemia typical for acute infections during spring migration and breeding. Conclusions Our study shows that blood parasite infections are common in several western Palaearctic breeding populations of collared sand martins who spent the nonbreeding season in West Africa and the lake Chad region. Due to long residency at the nonbreeding grounds blood parasite transmissions may mainly occur at host population-specific residences sites in Europe and Africa; the latter being likely facilitated by unsheltered roosting and thus high vulnerability to hematophagous insects. The rare cases of high parasitaemia during spring migration and breeding further indicates either relapses of chronic infection or primary infections which occurred shortly before migration and during breeding.

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Section: Discussionmentioning

confidence: 99%

Spatially different annual cycles but similar haemosporidian infections in distant populations of collared sand martins

Hahn¹,

Briedis²,

Barboutis³

et al. 2021

BMC Zool

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“…De hål som tillkom efter detta datum berodde sannolikt till mycket stor del på rasen i ostbranten samt på att oparade hannar fortsatte att gräva flera hål. Dessa gräver enligt Kuhnen (1978) genomsnittligt 1-3 hål innan de lyckas binda en hona till ett av hålen.…”

Section: Kort Om Säsongen 2001 -Grävaktivitet Och Antal Parunclassified

“…Dock nämns i befintlig litteratur andra beräkningssätt för att ange antalet par eller besatta bohål. Kuhnen (1975) räknar utifrån maximala antalet hål (mer än fem cm djupa (som vi räknat)) efter säsongens slut (augusti-september). En stor koloni med 500 bohål hade enligt hans metod ca 175 par (35% bebodda hål).…”

Section: Kort Om Säsongen 2001 -Grävaktivitet Och Antal Parunclassified

“…Av de 202 bona har 40 bon med gångar 30-104 cm bedömts varit obebodda, varav i nordostbrant 5 (63-90 cm) och västbrant 35 (30-104 cm). Övriga 162 bon, med mer eller mindre rikligt med bomaterial, utgör 80,2% av samtliga och ligger i överkant i förhållande till av Kuhnen (1978) I de cirka tre meter höga branterna, som i sin tur vilar på en undre, cirka fem meter hög, rikt bevuxen kulle, hade de översta bona grävts cirka 15 cm under kullens krön och de lägst belägna cirka 130 cm under krönet. Placeringen i höjdled fördelas enligt Tabell 3.…”

Section: Bohålens Djup Och Lägeunclassified

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Spillepengs backsvalor Riparia riparia – studier vid en nyskapad skånsk koloni

Bengtsson¹,

Olsson²

2002

Ornis Svec

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In 2001, we followed the burrow excavation phase, measured the length of the burrows, and analysed the nest content of invertebrates after breeding at a Sand Martin Riparia riparia colony near Malmö. After a spontaneous establishment of 50 pairs in 1999, the site was artificially improved, and about 250 pairs bred in 2000. Further improvement was made in 2001 to avoid predation which resulted in about 300 breeding pairs. The main excavation phase was between 7 May (a late spring) and early June. The mean burrow length was 79.9 ±20.3 cm (202 burrows judged to have been completed). The longest burrows were 137, 138, and 138 cm, which are among the longest ever recorded. The nest material contained an abundance of mites and fleas (probably Ceratophyllus styx), and also other invertebrates, among them Acheta deestica in different stages of development. After breeding was completed several burrows were occupied by Apodemus mice which built their own nests with Chenopodium leaves. The only predation we saw was two swallows taken by a Hobby Falco subbuteo.

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Die Belastung von Deutscher Bucht und Wattenmeer—Ökologische Gesamtsituation Zeithorizonte der Belastungsentwicklung Konsequenzen für eine neue Umweltpolitik

Buchwald

1987

Forstw Cbl

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On pair-formation in the Sand Martin,Riparia riparia

Cited by 8 publications

References 12 publications

Spatially different annual cycles but similar haemosporidian infections in distant populations of collared sand martins

Spatially different annual cycles but similar haemosporidian infections in distant populations of collared sand martins

Spillepengs backsvalor Riparia riparia – studier vid en nyskapad skånsk koloni

Die Belastung von Deutscher Bucht und Wattenmeer—Ökologische Gesamtsituation Zeithorizonte der Belastungsentwicklung Konsequenzen für eine neue Umweltpolitik

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