Eggs of leach's storm petrel: O 2 Uptake, water loss, and microclimate of the nest
1. 1. The O 2 consumption and water loss of eggs of Leach's storm petrel ( Oceanodroma leucorhoa) were measured during their natural incubation on Kent Island, Bay of Fundy, New Brunswick, Canada. 2. 2. During their 42-day incubation period, the 10.5 g eggs had a total O 2 consumption of 1.81 a...
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| Published in | Comparative biochemistry and physiology. A, Comparative physiology Vol. 91; no. 3; pp. 519 - 521 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
1988
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| Online Access | Get full text |
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| Summary: | 1.
1. The O
2 consumption and water loss of eggs of Leach's storm petrel (
Oceanodroma leucorhoa) were measured during their natural incubation on Kent Island, Bay of Fundy, New Brunswick, Canada.
2.
2. During their 42-day incubation period, the 10.5 g eggs had a total O
2 consumption of 1.81 and the O
2 uptake at the pre-internal pipping stage was estimated at 100 ml/day.
3.
3. The rate of water loss was followed over a 21-day period, averaging 47mg/day, and for the total incubation period predicts a total diffusive water loss of 1.96g.
4.
4. Egg temperatures and burrow temperatures were 33.4 and 8.3°C, respectively, resulting in an egg-nest water vapor pressure difference of 30.7 Torr, which when multiplied by the water vapor conductance of the shell, 1.55mg/day Torr, accounts for the observed daily water loss.
5.
5. The average number of pores per egg was 1516, SD 274. |
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| ISSN: | 0300-9629 |
| DOI: | 10.1016/0300-9629(88)90628-7 |