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José Antonio - One of the best experts on this subject based on the ideXlab platform.
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Salida de campo a Laguna de Duero (Valadolid) el 4 de febrero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Laguna de Duero (Valladolid) el 4 febrero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Fringilla montifringilla (Pinzón real), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Tringa ochropus (Andarríos grande) y Vanellus vanellus (Avefría europea).Field trip to Laguna de Duero (Valladolid) the 4th of February of 1953, of which there were noted observations about the following birds: Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Fringilla montifringilla (Brambling), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Tringa ochropus (Green Sandpiper) and Vanellus vanellus (Northern Lapwing)
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Salida de campo al Sotillo (Valladolid) el 2 de enero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo al Sotillo (en Valladolid capital o en sus cercanías) el 2 de enero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Columba palumbus (Paloma torcaz), Falco tinnunculus (Cernícalo vulgar), Gallinago gallinago (Agachadiza común, llamada, Capella gallinago por el autor), Sturnus sp. (Estornino), Turdus merula (Mirlo común), Turdus musicus (considerado actualmente Turdus philomelos, el Zorzal común) y Vanellus vanellus (Avefría europea).Field trip to the Sotillo (in the city of Valladolid or it outskirts) the 2nd of January of 1953, of which there were noted observations about the following birds: Columba palumbus (Common Wood-pigeon), Falco tinnunculus (Common Kestrel), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Sturnus sp. (Starling), Turdus merula (Eurasian Blackbird), Turdus musicus (currently considered Turdus philomelos, the Song Thrush) and Vanellus vanellus (Northern Lapwing)
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Salida de campo a Laguna de Duero (Valladolid) el 2 de marzo de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de cmapo a Laguna de Duero (Valladolid) durante la tarde del 2 de marzo de 1953, de la que se anotaron observaciones sobre grillos (sin detallar la especie), los siguientes anfibios: Pelobates cultripes (Sapo de espuelas), Pleurodeles waltl (Gallipato) y Ranas (sin detallar la especie), los mamíferos "Pytimis" (llamado así por el autor, siendo posiblemente el actual género Microtus), y las siguientes aves: Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Anthus pratensis (Bisbita común), Ardea sp. (Garza), Emberiza schoeniclus (Escribano palustre), Falco naumanni (Cernícalo primilla), Larus sp. (Gaviota), Limosa sp. (Aguja), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor) y Vanellus vanellus (Avefría europea). Mamíferos y anfibios fueron capturados con pozos trampa parcialmente enterrados en el suelo.Field trip to Laguna de Duero (Valladolid) during the evening of the 2nd of March of 1953, of which there were noted observations about crickets (without identifying the species), the following amphibians: Frogs (without identifying the species), Pelobates cultripes (Western Spadefoot) and Pleurodeles waltl (Iberian Ribbed Newt), the mammal "Pytimis" (as refered by the author, being possibly the current genus Microtus), and the following birds: Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Anthus pratensis (Meadow Pipit), Ardea sp. (Heron), Emberiza schoeniclus (Reed Bunting), Falco naumanni (Lesser Kestrel), Larus sp. (Gull), Limosa sp. (Godwit), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author) and Vanellus vanellus (Northern Lapwing). Mammals and amphibians were captured by means of pit-traps, partially buried on the ground
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Visita a la finca del Habanero, Valladolid, el 29 de febrero de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a la finca del Habanero, en Valladolid, el 29 de febrero de 1952, de la que se anotaron observaciones sobre las siguientes aves: Alauda arvensis (Alondra común), Anthus spinoletta (Bisbita alpino), Carduelis carduelis (Jilguero), Charadrius sp. (Chorlitejo), Ciconia ciconia (Cigüeña blanca), Corvus frugilegus (Graja), Corvus monedula (Grajilla, llamada Coloeus por el autor), Cyanistes caeruleus (Herrerillo común, llamado Parus coeruleus por el autor), Falco naumanni (Cernícalo primilla), Fringilla coelebs (Pinzón vulgar), Galerida sp. (Cogujada), Larus ridibundus (Gaviota reidora), Milvus milvus (Milano real), Passer sp. (Gorrión), Pica pica (Urraca), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor), Serinus serinus (Verdecillo), Sturnus unicolor (Estornino negro) y Vanellus vanellus (Avefría europea). Se incluyen pequeños dibujos de aves a rotulador.Field trip to the Habanero´s country house, at Valladolid, the 29th of February of 1952, of which there were noted observations about the following birds: Alauda arvensis (Eurasian Skylark), Anthus spinoletta (Water Pipit), Carduelis carduelis (European Goldfinch), Charadrius sp. (Ringed Plover), Ciconia ciconia (White Stork), Corvus frugilegus (Rook), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Cyanistes caeruleus (Blue Tit, refered as Parus coeruleus by the author), Falco naumanni (Lesser Kestrel), Fringilla coelebs (Chaffinch), Galerida sp. (Lark), Larus ridibundus (Common Black-headed Gull), Milvus milvus (Red Kite), Passer sp.(Sparrow), Pica pica (Black-billed Magpie), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author), Serinus serinus (European Serin), Sturnus unicolor (Spotless Starling) and Vanellus vanellus (Northern Lapwing). Some felt-tip pen illustrations of birds are included
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Salida de campo a Ribera del Cubo (o Torre Duero, en Torrecilla de Abadesa), Vega Mayor y Tordesillas, Valladolid, el 4 y 5 de noviembre de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Ribera del Cubo (seguramente, sinónimo de Torre Duero, que se halla en la localidad de Torrecilla de Abadesa), Vega Mayor (seguramente, zona cercana a Villalar de los Comuneros) y Tordesillas, todos en la provincia de Valladolid, el 4 y 5 de noviembre de 1952, de la que se anotaron observaciones sobre el pez Squalius cephalus (Bagre, llamado Leuciscus cephalus por el autor), hallado en el estómado de una Garza real, y las siguientes aves: Actitis hypoleucos (Andarríos chico, llamado Actynioides hypoleucus por el autor), Anas crecca (Cerceta común), Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Ardea cinerea (Garza real), Buteo buteo (Busardo ratonero), Larus ridibundus (Gaviota reidora), Milvus milvus (Milano real), Tringa ochropus (Andarríos grande) y Vanellus vanellus (Avefría europea).Field trip to Ribera del Cubo (that is probably a synonymous of Torre Duero, located in the village of Torrecilla de Abadesa), Vega Mayor (that is probably situated near to Villalar de los Comuneros) and Tordesillas, belonging all to the province of Valladolid, the 4th and 5th of November of 1952, of which there were noted observations about the fish Squalius cephalus (Chub, refered as Leuciscus cephalus by the author), found into the stomach of a Grey Heron, and the following birds: Actitis hypoleucos (Common Sandpiper, refered as Actynioides hypoleucus by the author), Anas crecca (Common Teal), Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Ardea cinerea (Grey Heron), Buteo buteo (Common Buzzard), Larus ridibundus (Common Black-headed Gull), Milvus milvus (Red Kite), Tringa ochropus (Green Sandpiper) and Vanellus vanellus (Northern Lapwing)
Valverde Gómez - One of the best experts on this subject based on the ideXlab platform.
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Salida de campo a Laguna de Duero (Valadolid) el 4 de febrero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Laguna de Duero (Valladolid) el 4 febrero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Fringilla montifringilla (Pinzón real), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Tringa ochropus (Andarríos grande) y Vanellus vanellus (Avefría europea).Field trip to Laguna de Duero (Valladolid) the 4th of February of 1953, of which there were noted observations about the following birds: Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Fringilla montifringilla (Brambling), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Tringa ochropus (Green Sandpiper) and Vanellus vanellus (Northern Lapwing)
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Salida de campo al Sotillo (Valladolid) el 2 de enero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo al Sotillo (en Valladolid capital o en sus cercanías) el 2 de enero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Columba palumbus (Paloma torcaz), Falco tinnunculus (Cernícalo vulgar), Gallinago gallinago (Agachadiza común, llamada, Capella gallinago por el autor), Sturnus sp. (Estornino), Turdus merula (Mirlo común), Turdus musicus (considerado actualmente Turdus philomelos, el Zorzal común) y Vanellus vanellus (Avefría europea).Field trip to the Sotillo (in the city of Valladolid or it outskirts) the 2nd of January of 1953, of which there were noted observations about the following birds: Columba palumbus (Common Wood-pigeon), Falco tinnunculus (Common Kestrel), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Sturnus sp. (Starling), Turdus merula (Eurasian Blackbird), Turdus musicus (currently considered Turdus philomelos, the Song Thrush) and Vanellus vanellus (Northern Lapwing)
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Salida de campo a Laguna de Duero (Valladolid) el 2 de marzo de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de cmapo a Laguna de Duero (Valladolid) durante la tarde del 2 de marzo de 1953, de la que se anotaron observaciones sobre grillos (sin detallar la especie), los siguientes anfibios: Pelobates cultripes (Sapo de espuelas), Pleurodeles waltl (Gallipato) y Ranas (sin detallar la especie), los mamíferos "Pytimis" (llamado así por el autor, siendo posiblemente el actual género Microtus), y las siguientes aves: Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Anthus pratensis (Bisbita común), Ardea sp. (Garza), Emberiza schoeniclus (Escribano palustre), Falco naumanni (Cernícalo primilla), Larus sp. (Gaviota), Limosa sp. (Aguja), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor) y Vanellus vanellus (Avefría europea). Mamíferos y anfibios fueron capturados con pozos trampa parcialmente enterrados en el suelo.Field trip to Laguna de Duero (Valladolid) during the evening of the 2nd of March of 1953, of which there were noted observations about crickets (without identifying the species), the following amphibians: Frogs (without identifying the species), Pelobates cultripes (Western Spadefoot) and Pleurodeles waltl (Iberian Ribbed Newt), the mammal "Pytimis" (as refered by the author, being possibly the current genus Microtus), and the following birds: Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Anthus pratensis (Meadow Pipit), Ardea sp. (Heron), Emberiza schoeniclus (Reed Bunting), Falco naumanni (Lesser Kestrel), Larus sp. (Gull), Limosa sp. (Godwit), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author) and Vanellus vanellus (Northern Lapwing). Mammals and amphibians were captured by means of pit-traps, partially buried on the ground
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Visita a la finca del Habanero, Valladolid, el 29 de febrero de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a la finca del Habanero, en Valladolid, el 29 de febrero de 1952, de la que se anotaron observaciones sobre las siguientes aves: Alauda arvensis (Alondra común), Anthus spinoletta (Bisbita alpino), Carduelis carduelis (Jilguero), Charadrius sp. (Chorlitejo), Ciconia ciconia (Cigüeña blanca), Corvus frugilegus (Graja), Corvus monedula (Grajilla, llamada Coloeus por el autor), Cyanistes caeruleus (Herrerillo común, llamado Parus coeruleus por el autor), Falco naumanni (Cernícalo primilla), Fringilla coelebs (Pinzón vulgar), Galerida sp. (Cogujada), Larus ridibundus (Gaviota reidora), Milvus milvus (Milano real), Passer sp. (Gorrión), Pica pica (Urraca), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor), Serinus serinus (Verdecillo), Sturnus unicolor (Estornino negro) y Vanellus vanellus (Avefría europea). Se incluyen pequeños dibujos de aves a rotulador.Field trip to the Habanero´s country house, at Valladolid, the 29th of February of 1952, of which there were noted observations about the following birds: Alauda arvensis (Eurasian Skylark), Anthus spinoletta (Water Pipit), Carduelis carduelis (European Goldfinch), Charadrius sp. (Ringed Plover), Ciconia ciconia (White Stork), Corvus frugilegus (Rook), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Cyanistes caeruleus (Blue Tit, refered as Parus coeruleus by the author), Falco naumanni (Lesser Kestrel), Fringilla coelebs (Chaffinch), Galerida sp. (Lark), Larus ridibundus (Common Black-headed Gull), Milvus milvus (Red Kite), Passer sp.(Sparrow), Pica pica (Black-billed Magpie), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author), Serinus serinus (European Serin), Sturnus unicolor (Spotless Starling) and Vanellus vanellus (Northern Lapwing). Some felt-tip pen illustrations of birds are included
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Salida de campo a Ribera del Cubo (o Torre Duero, en Torrecilla de Abadesa), Vega Mayor y Tordesillas, Valladolid, el 4 y 5 de noviembre de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Ribera del Cubo (seguramente, sinónimo de Torre Duero, que se halla en la localidad de Torrecilla de Abadesa), Vega Mayor (seguramente, zona cercana a Villalar de los Comuneros) y Tordesillas, todos en la provincia de Valladolid, el 4 y 5 de noviembre de 1952, de la que se anotaron observaciones sobre el pez Squalius cephalus (Bagre, llamado Leuciscus cephalus por el autor), hallado en el estómado de una Garza real, y las siguientes aves: Actitis hypoleucos (Andarríos chico, llamado Actynioides hypoleucus por el autor), Anas crecca (Cerceta común), Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Ardea cinerea (Garza real), Buteo buteo (Busardo ratonero), Larus ridibundus (Gaviota reidora), Milvus milvus (Milano real), Tringa ochropus (Andarríos grande) y Vanellus vanellus (Avefría europea).Field trip to Ribera del Cubo (that is probably a synonymous of Torre Duero, located in the village of Torrecilla de Abadesa), Vega Mayor (that is probably situated near to Villalar de los Comuneros) and Tordesillas, belonging all to the province of Valladolid, the 4th and 5th of November of 1952, of which there were noted observations about the fish Squalius cephalus (Chub, refered as Leuciscus cephalus by the author), found into the stomach of a Grey Heron, and the following birds: Actitis hypoleucos (Common Sandpiper, refered as Actynioides hypoleucus by the author), Anas crecca (Common Teal), Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Ardea cinerea (Grey Heron), Buteo buteo (Common Buzzard), Larus ridibundus (Common Black-headed Gull), Milvus milvus (Red Kite), Tringa ochropus (Green Sandpiper) and Vanellus vanellus (Northern Lapwing)
Martin Bulla - One of the best experts on this subject based on the ideXlab platform.
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diversity of incubation rhythms in a facultatively uniparental shorebird the Northern Lapwing
Scientific Reports, 2019Co-Authors: Martin Sladecek, Miroslav Šálek, Martin Bulla, Eva VozabulovaAbstract:In birds, incubation by both parents is a common form of care for eggs. Although the involvement of the two parents may vary dramatically between and within pairs, as well as over the course of the day and breeding season, detailed descriptions of this variation are rare, especially in species with variable male contributions to care. Here, we continuously video-monitored 113 nests of Northern Lapwings Vanellus vanellus to reveal the diversity of incubation rhythms and parental involvement, as well as their daily and seasonal variation. We found great between-nest variation in the overall nest attendance (68-94%; median = 87%) and in how much males attended their nests (0-37%; median = 13%). Notably, the less the males attended their nests, the lower was the overall nest attendance, even though females partially compensated for the males' decrease. Also, despite seasonal environmental trends (e.g. increasing temperature), incubation rhythms changed little over the season and 27-day incubation period. However, as nights shortened with the progressing breeding season, the longest night incubation bout of females shortened too. Importantly, within the 24h-day, nest attendance was highest, incubation bouts longest, exchange gaps shortest and male involvement lowest during the night. Moreover, just after sunrise and before sunset males attended the nest the most. To conclude, we confirm substantial between nest differences in Lapwing male nest attendance, reveal how such differences relates to variation in incubation rhythms, and describe strong circadian incubation rhythms modulated by sunrise and sunset.
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Diversity of incubation rhythms in a facultatively uniparental shorebird – the Northern Lapwing
Nature Publishing Group, 2019Co-Authors: Martin Sladecek, Miroslav E. Šálek, Eva Vozabulova, Martin BullaAbstract:Abstract In birds, incubation by both parents is a common form of care for eggs. Although the involvement of the two parents may vary dramatically between and within pairs, as well as over the course of the day and breeding season, detailed descriptions of this variation are rare, especially in species with variable male contributions to care. Here, we continuously video-monitored 113 nests of Northern Lapwings Vanellus vanellus to reveal the diversity of incubation rhythms and parental involvement, as well as their daily and seasonal variation. We found great between-nest variation in the overall nest attendance (68–94%; median = 87%) and in how much males attended their nests (0–37%; median = 13%). Notably, the less the males attended their nests, the lower was the overall nest attendance, even though females partially compensated for the males’ decrease. Also, despite seasonal environmental trends (e.g. increasing temperature), incubation rhythms changed little over the season and 27-day incubation period. However, as nights shortened with the progressing breeding season, the longest night incubation bout of females shortened too. Importantly, within the 24h-day, nest attendance was highest, incubation bouts longest, exchange gaps shortest and male involvement lowest during the night. Moreover, just after sunrise and before sunset males attended the nest the most. To conclude, we confirm substantial between nest differences in Lapwing male nest attendance, reveal how such differences relates to variation in incubation rhythms, and describe strong circadian incubation rhythms modulated by sunrise and sunset
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diverse incubation rhythms in a facultatively uniparental shorebird the Northern Lapwing
bioRxiv, 2018Co-Authors: Martin Sladecek, Miroslav Šálek, Eva Wozabulova, Martin BullaAbstract:Incubation by both parents is the most common form of care for eggs. Although the involvement of the two parents may vary dramatically between and within pairs, as well as over the day and breeding season, detailed description of this variation (especially in species with variable male contribution to incubation) is rare. Here, we continuously video-monitored 113 nests of Northern Lapwing Vanellus vanellus over the breeding season to reveal the diversity of incubation rhythms and parental involvement. We found great between-nest variation in the overall nest attendance (68 – 94%; median = 87%) and in how much males incubated (0 – 37%; median = 13%). Notably, the less the males incubated, the lower was the overall nest attendance, even though females partially compensated for the males' decrease. Overall, incubation rhythms changed little over the season and incubation period. However, as nights shorten with the progressing breeding season, the female longest night incubation bout shortened too. Essentially, nest attendance was highest, incubation bouts longest, exchange gaps shortest and male involvement lowest during the night. Also, males tended to incubate the most after sunrise and before sunset. To conclude, we revealed strong circadian rhythms and remarkable between nest differences in Northern Lapwing incubation (especially in male involvement), yet despite seasonal environmental trends (e.g. increasing temperature) Lapwing incubation rhythms remained relatively stable over the season and incubation period.
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eggshell spotting does not predict male incubation but marks thinner areas of a shorebird s shells
The Auk, 2012Co-Authors: Martin Bulla, Miroslav Šálek, Andrew G GoslerAbstract:ABSTRACT. Many birds lay eggs speckled with black or reddish-brown spots of protoporphyrin pigment, but the function of these spots is debated. Two recent hypotheses have received considerable attention. Under the “signaling-function hypothesis,” speckling reflects female quality and influences allocation of male parental care; under the “structural-function hypothesis,” the speckles strengthen the eggshell when calcium is scarce. The evidence for each is taxonomically uneven. For instance, evidence for the signaling-function hypothesis comes from cavity-nesting and uniparentally incubating species in which the viewing conditions and possibilities for males to assess the speckling are limited, and male response to speckling is indirect (i.e., female-feeding) or postponed (i.e., chickfeeding). We tested the predictions of both hypotheses in a biparentally incubating ground-nesting shorebird, the Northern Lapwing (Vanellus vanellus), in which the potential for a direct male response to eggshell speckling ex...
Jennifer A Gill - One of the best experts on this subject based on the ideXlab platform.
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landscape effects on nest site selection and nest success of Northern Lapwing vanellus vanellus in lowland wet grasslands
Bird Study, 2017Co-Authors: Nikolas P Bertholdt, Jennifer A Gill, Rebecca A Laidlaw, Jennifer SmartAbstract:ABSTRACTCapsule: Northern Lapwing Vanellus vanellus avoid nesting close to small woodland patches but nest predation rates do not vary with distance to woodland patches, either because risky areas are avoided or perceived nest predation risk does not reflect actual risk.Aims: To explore the effects of woodland patches in wet grassland landscapes on nest distribution and success of Lapwings.Methods: We quantified the effect of woodland patches on the distribution and outcome of Lapwing nests across four wet grassland sites by mapping nest distribution and monitoring nest outcomes.Results: Lapwing nested significantly further from woods than expected by chance. Neither nest predation rates nor the probability of predation occurring at night (thus primarily mammalian predators) or day (primarily avian predators) varied in relation to distance from woodland patches.Conclusions: High levels of nest and chick predation in wet grassland landscapes limit the capacity for breeding wader populations to be self-sust...
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managing water levels on wet grasslands to improve foraging conditions for breeding Northern Lapwing vanellus vanellus
Journal of Applied Ecology, 2010Co-Authors: Sarah M Eglington, Mark Bolton, Mark A Smart, William J Sutherland, A R Watkinson, Jennifer A GillAbstract:Summary 1. The widespread drainage of wetlands and grazing marshes has been one of the main drivers of severe reductions in the number and range of breeding waders across Europe. Wader chicks require wet, invertebrate-rich foraging habitats and most agricultural land is now too dry to support sustainable breeding populations. Recent efforts to re-create wet grasslands and improve wader breeding success have focussed on reinstating wet features, in order to provide foraging habitats for chicks. The success of wet feature installation will therefore depend on whether they provide sufficient invertebrate prey for chicks throughout the pre-fledging period. 2. Techniques for re-creating lowland wet grasslands from arable and pastoral farmland are becoming increasingly well-established, and support from agri-environment initiatives is now available for wet feature installation on grasslands. Here we explore the effect of wet feature provision on invertebrate abundance and the growth rates and body condition of Northern Lapwing Vanellus vanellus chicks, on grazing marshes in eastern England. 3. Wet features supported more than double the biomass of surface-active invertebrates and a greater abundance of aerial invertebrates than the vegetated grazing marsh. Chick foraging rates were also two to three times higher in wet features than in the grazing marsh, as was the estimated biomass intake per food item. 4. At the start of the breeding season, chick condition was unrelated to wet feature provision but late in the season, when water levels were low, chick body condition was significantly higher in fields with footdrain densities of more than 150 m ha )1 . Chick condition declined with increasing rainfall, and low growth rates and longer pre-fledging periods in 2007 are likely to have resulted from unusually intense and prolonged summer rainfall. 5. Synthesis and applications. The installation of wet features on grasslands provides valuable foraging locations for chicks, particularly later in the season when these features are likely to be the main source of water available. Predicted changes to the seasonality of precipitation at temperate latitudes means that provision of wet features is likely to be increasingly important for maintaining breeding wader populations.
Miroslav Šálek - One of the best experts on this subject based on the ideXlab platform.
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diversity of incubation rhythms in a facultatively uniparental shorebird the Northern Lapwing
Scientific Reports, 2019Co-Authors: Martin Sladecek, Miroslav Šálek, Martin Bulla, Eva VozabulovaAbstract:In birds, incubation by both parents is a common form of care for eggs. Although the involvement of the two parents may vary dramatically between and within pairs, as well as over the course of the day and breeding season, detailed descriptions of this variation are rare, especially in species with variable male contributions to care. Here, we continuously video-monitored 113 nests of Northern Lapwings Vanellus vanellus to reveal the diversity of incubation rhythms and parental involvement, as well as their daily and seasonal variation. We found great between-nest variation in the overall nest attendance (68-94%; median = 87%) and in how much males attended their nests (0-37%; median = 13%). Notably, the less the males attended their nests, the lower was the overall nest attendance, even though females partially compensated for the males' decrease. Also, despite seasonal environmental trends (e.g. increasing temperature), incubation rhythms changed little over the season and 27-day incubation period. However, as nights shortened with the progressing breeding season, the longest night incubation bout of females shortened too. Importantly, within the 24h-day, nest attendance was highest, incubation bouts longest, exchange gaps shortest and male involvement lowest during the night. Moreover, just after sunrise and before sunset males attended the nest the most. To conclude, we confirm substantial between nest differences in Lapwing male nest attendance, reveal how such differences relates to variation in incubation rhythms, and describe strong circadian incubation rhythms modulated by sunrise and sunset.
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diverse incubation rhythms in a facultatively uniparental shorebird the Northern Lapwing
bioRxiv, 2018Co-Authors: Martin Sladecek, Miroslav Šálek, Eva Wozabulova, Martin BullaAbstract:Incubation by both parents is the most common form of care for eggs. Although the involvement of the two parents may vary dramatically between and within pairs, as well as over the day and breeding season, detailed description of this variation (especially in species with variable male contribution to incubation) is rare. Here, we continuously video-monitored 113 nests of Northern Lapwing Vanellus vanellus over the breeding season to reveal the diversity of incubation rhythms and parental involvement. We found great between-nest variation in the overall nest attendance (68 – 94%; median = 87%) and in how much males incubated (0 – 37%; median = 13%). Notably, the less the males incubated, the lower was the overall nest attendance, even though females partially compensated for the males' decrease. Overall, incubation rhythms changed little over the season and incubation period. However, as nights shorten with the progressing breeding season, the female longest night incubation bout shortened too. Essentially, nest attendance was highest, incubation bouts longest, exchange gaps shortest and male involvement lowest during the night. Also, males tended to incubate the most after sunrise and before sunset. To conclude, we revealed strong circadian rhythms and remarkable between nest differences in Northern Lapwing incubation (especially in male involvement), yet despite seasonal environmental trends (e.g. increasing temperature) Lapwing incubation rhythms remained relatively stable over the season and incubation period.
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breath rate patterns in precocial Northern Lapwing vanellus vanellus chicks in the wild
Journal of Ornithology, 2018Co-Authors: Zuzana Karlikova, Tereza Kejzlarova, Miroslav ŠálekAbstract:Individual-specific reaction to stressful situations may reveal various, individual-specific features, including personality. Breath rate and its change during and after handling [handling stress (HS) test] has been used to test individual response to stress. In previous laboratory research, the HS test has revealed a continuous decrease from peak values immediately after catching, which was consistent in adults of precocial and altricial species. Because of opposite trends in nestlings versus adults in altricial birds, we ask what breath rate pattern appears in precocial chicks in natural conditions? Advanced development during their early ontogeny compared to altricials could lead to breath rates similar to adults, but the effect of age, (in)experience, as well as environmental conditions, such as ambient temperature, may significantly shape breath rate patterns in chicks in different ways than in adults. In this study, we examined patterns in breath rate in response to HS in chicks of different age in a precocial wader, the Northern Lapwing (Vanellus vanellus) in the wild. Factors responsible for variation were simultaneously identified. We show that breath rate significantly dropped after visual isolation in a textile bag, a pattern similar to that in adult birds, and increased with the age of chicks as well as with higher ambient temperature. Breath rate was individually repeatable, but did not reflect individual behaviour observed before capture. Our results suggest that, when controlled for ambient temperature and time before catching, the breath rate pattern has the potential to be used as a useful HS test for neonatal Northern Lapwing chicks in the field.
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eggshell spotting does not predict male incubation but marks thinner areas of a shorebird s shells
The Auk, 2012Co-Authors: Martin Bulla, Miroslav Šálek, Andrew G GoslerAbstract:ABSTRACT. Many birds lay eggs speckled with black or reddish-brown spots of protoporphyrin pigment, but the function of these spots is debated. Two recent hypotheses have received considerable attention. Under the “signaling-function hypothesis,” speckling reflects female quality and influences allocation of male parental care; under the “structural-function hypothesis,” the speckles strengthen the eggshell when calcium is scarce. The evidence for each is taxonomically uneven. For instance, evidence for the signaling-function hypothesis comes from cavity-nesting and uniparentally incubating species in which the viewing conditions and possibilities for males to assess the speckling are limited, and male response to speckling is indirect (i.e., female-feeding) or postponed (i.e., chickfeeding). We tested the predictions of both hypotheses in a biparentally incubating ground-nesting shorebird, the Northern Lapwing (Vanellus vanellus), in which the potential for a direct male response to eggshell speckling ex...
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do Northern Lapwings vanellus vanellus and little ringed plovers charadrius dubius rely on egg crypsis during incubation
Folia Zoologica, 2006Co-Authors: Miroslav Šálek, Eva CepakovaAbstract:A b s t r a c t . We studied the possible role of clutch crypsis in antipredator behaviour in two related species of ground-nesting waders with camouflaged eggs, the Northern Lapwing (Vanellus vanellus) and the little ringed plover (Charadrius dubius). We examined whether this behaviour appears regularly in both species and tested the difference in the use of this trait between the two species. The results suggest that both charadriids rely on egg crypsis as a reasonable strategy toward avian nest predators. However, the larger and more conspicuous Lapwings use it less frequently than plovers, probably because they rather rely on body size and aggressiveness combined with colonial breeding. Smaller and solitary little ringed plovers tended to hide the nest location more thoroughly than Lapwings, probably due to their limited ability to defend the nest actively. Instead of aggressive attacks, they use alternative behavioural elements intended to deceive predators, namely incubation-feigning. Although egg crypsis is regularly used as a passive strategy for protecting nests against predators in both species, it seems to be unprofitable as an exclusive form of nest protection. The birds combine it with other behavioural elements, such as the above mentioned aggressiveness or incubation-feigning.