| Abstract: | We measured the effect of diet quality on variation in the seasonal pattern of Mallard (Anas platyrhynchos) reproduction. Twenty wild-strain hens, consisting of 10 sibling pairs, were maintained in captivity. One sib of each pair was fed an enriched diet, and the other was fed wheat. The wheat diet resulted in reduced clutch size, egg size, laying rate, number of nesting attempts, and total eggs laid. Diet did not affect laying initiation, duration, or the seasonal pattern of change in clutch and egg size with each renest. We believe the variation and pattern observed are adaptations to a highly variable prairie environment where the probability of reproductive success decreases as the season progresses. |
| Genre: | Article |
| ProdID: | 1001459 |
| Citation Author: | Eldridge, J. L.; Krapu, G. L. |
| Citation Contributing Office: | Northern Prairie Wildlife Research Center |
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| Citation End Page: | 110 |
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| Citation Language: | English |
| Citation Larger Work Title: | Auk |
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| Citation Number Of Pages: | 8 |
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| Citation Phsyical Description: | p. 102-110 |
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| Citation Search Results Text: | The influence of diet quality on clutch size and laying pattern in mallards; 1988; Article; Journal; Auk; Eldridge, J. L.; Krapu, G. L. |
| Citation Start Page: | 102 |
| Citation Volume: | 105 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | The influence of diet quality on clutch size and laying pattern in mallards; 1988; Article; Journal; Auk; Eldridge, J. L.; Krapu, G. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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