Incubation Temperatures of Canada Geese

Kossack, Charles W.

doi:10.2307/3795556

Cited by 17 publications

(5 citation statements)

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“…In our study the thermocouples were implanted in freshly laid eggs with no appreciable heat production of the embryo nor chorioallantoic circulation. Such eggs might be expected to have the largest gradients of l°C/cm or more as shown in (Kossack 1947) and 37.9"C, S.D. 1.1 (Cooper 1978).…”

Section: Egg Temperaturesmentioning

confidence: 99%

“…Our mean value of 39.1"C for the incubating Eider is similar to the 'abdominal temperature of the sitting Eider' of 39.6"C reported by Rol'nik (1970). Kossack (1947) reported a 'cloaca1 temperature for incubating Canada Geese' of 40.9"C (n = 2) and Caldwell & Cornwell (1975) mentioned a 'deep body temperature' of 41°C for the Mallard.…”

Section: Body Temperaturesmentioning

confidence: 99%

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Microclimate of the nest and egg water loss of the eider Somateria mollissima and other waterfowl in Spitsbergen

1983

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Section: Egg Temperaturesmentioning

confidence: 99%

Section: Body Temperaturesmentioning

confidence: 99%

Microclimate of the nest and egg water loss of the eider Somateria mollissima and other waterfowl in Spitsbergen

1983

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“…We used continuously recording temperature sensors in eggs to directly measure nocturnal nest attendance patterns of Common Terns. Sensors have been used in nests to measure nest air temperature (Baldwin and Kendeigh 1927, Farner 1958, Kendeigh 1963, Norton 1972), and in eggs and dummy eggs to measure incubation temperatures (Huggins 1941, Kossack 1947, Norton 1972, Snelling 1972, Varney and Ellis 1974) for decades. Temperature sensors have been designed with various levels of complexity based on the technology available at the time of each study and the specific needs of the study.…”

mentioning

confidence: 99%

Use of temperature sensors to monitor patterns of nocturnal desertion by incubating Common Terns

Arnold

Sabom

Nisbet³

et al. 2006

J Field Ornithology

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Adult Common Terns (Sterna hirundo) reportedly respond to nocturnal predation by deserting colonies from the time of disturbance until dawn the following morning. However, direct evidence for this behavioral response is limited because the nocturnal behavior of individual terns is difficult to monitor due to low visibility and the vulnerability of terns to disturbance at night. We monitored the nocturnal incubation behavior of 10 pairs of nesting Common Terns using continuously recording temperature sensors disguised in dummy eggs and placed in the nests. Changes in egg temperature during the night suggested that a range of desertion behaviors occurred in response to visits by a Great Horned Owl (Bubo virginianus) that preyed on chicks and adult terns. As many as three desertion events (desertion at one or more nests in a single 12-min period) were detected on a single night and nests were unattended for an average of 54 min (range 8-352 min) per desertion event. Nest temperature sensors allowed us to detect individual responses to nocturnal predators and to determine that desertion behavior was more varied than previously assumed. Desertion events were most frequent when physical evidence indicated the presence of an owl in the colony and during nights after owl predation, suggesting that desertion is a response to the actual risk of predation as well as to the possibility of predation. SINOPSIS. Uso de censores de temperatura para monitorear, durante la noche, los patrones de abandono de nido por individuos de Sterna hirundoSe ha informado a adultos de Sterna hirundo, en la etapa de incubación, abandonar la colonia durante la noche como respuesta a disturbios causado por depredadores. La evidencia directa para esta conducta esta limitada, porque es dificil el monitorear las aves durante la noche, debido a la poca luz a la vulnerabilidad de las colonias al disturbio. Monitoreamos la conducta nocturna de incubación de 10 parejas que estaban anidando, utilizando un sensor de monitoreo continuo de temperatura (bitácora electrónica de temperatura), camuflageado en forma de huevo. Cambios en la temperatura de la bitacora durante la noche sugieren que hubo abandono de los nidos en respuesta a la visita de un buho (Bubo virginianus) que depredó tando adultos como pichones. Al menos tres eventos de abandono de nidos (uno o más en un periodo de 12 minutos) fueron detectados en una misma noche y dichos nidos no fueron atendidos por un periodo promedio de 54 minutos (alcance 8-352 minutos) por periodo de deserción. Las bitácoras electrónicas de temperatura nos permitieron determinar la respuesta de individuos a depredadores nocturnos y documentar que la conducta de abandono era más variada que lo previamente asumido. Los eventos de deserción resultaron más frecuentes cuando la evidencia física indicó la presencia de un buho en la colonia y durante noches posteriores a la depredación. Esto sugiere que el abandono de colonias es una respuesta al riesgo inmediato de depredación como también a la probabilidad de ser depredado.

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Section: Body Temperaturesmentioning

confidence: 99%

“…Such factors would influence not only the absolute temperature but also the temperature gradient within the egg. (Kossack 1947) and 37.9"C, S.D. 1.1 (Cooper 1978).…”

Section: Egg Temperaturesmentioning

confidence: 99%

Microclimate of the nest and egg water loss of the Eider Somateria mollissima and other waterfowl in Spitsbergen

1983

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Temperature gradients in the nest and within the egg. nest humidity as well as eggshell conductance and rate of egg water loss of the Eider Somateria mollissima and other waterfowl were studied at Ny‐Alesund. Spitsbergen (78°55'N latitude). These studies suggest a specific interrelationship between eggshell conductance and maintenance of an appropriate temperature and humidity environment of the nest, resulting in an egg water loss rate which is optimal for hatching success. In spite of low ambient temperatures of less than 3°C and very low absolute humidities of less than 4 torr (similar to those found in hot deserts). the nest's microclimate and rate of water loss were similar to those reported for nests and eggs in temperate climates.

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Incubation Temperatures of Canada Geese

Cited by 17 publications

References 0 publications

Microclimate of the nest and egg water loss of the eider Somateria mollissima and other waterfowl in Spitsbergen

Microclimate of the nest and egg water loss of the eider Somateria mollissima and other waterfowl in Spitsbergen

Use of temperature sensors to monitor patterns of nocturnal desertion by incubating Common Terns

Microclimate of the nest and egg water loss of the Eider Somateria mollissima and other waterfowl in Spitsbergen

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