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Terminal Investment: Individual Reproduction of Ant Queens Increases with Age
Heinze, Jürgen und Schrempf, Alexandra (2012) Terminal Investment: Individual Reproduction of Ant Queens Increases with Age. PLoS One, e35201.Veröffentlichungsdatum dieses Volltextes: 12 Apr 2012 11:08
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.23788
Zusammenfassung
The pattern of age-specific fecundity is a key component of the life history of organisms and shapes their ecology and evolution. In numerous animals, including humans, reproductive performance decreases with age. Here, we demonstrate that some social insect queens exhibit the opposite pattern. Egg laying rates of Cardiocondyla obscurior ant queens increased with age until death, even when the ...
The pattern of age-specific fecundity is a key component of the life history of organisms and shapes their ecology and evolution. In numerous animals, including humans, reproductive performance decreases with age. Here, we demonstrate that some social insect queens exhibit the opposite pattern. Egg laying rates of Cardiocondyla obscurior ant queens increased with age until death, even when the number of workers caring for them was kept constant. Cardiocondyla, and probably also other ants, therefore resemble the few select organisms with similar age-specific reproductive investment, such as corals, sturgeons, or box turtles (e.g., [1]), but they differ in being more short-lived and lacking individual, though not social, indeterminate growth. Furthermore, in contrast to most other organisms, in which average life span declines with increasing reproductive effort, queens with high egg laying rates survived as long as less fecund queens.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | PLoS One | ||||
| Verlag: | PUBLIC LIBRARY SCIENCE | ||||
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| Ort der Veröffentlichung: | SAN FRANCISCO | ||||
| Seitenbereich: | e35201 | ||||
| Datum | 11 April 2012 | ||||
| Institutionen | Biologie und Vorklinische Medizin > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze) | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | SEX-RATIO; EVOLUTIONARY-THEORIES; LIFE-SPAN; FECUNDITY; SENESCENCE; LONGEVITY; DROSOPHILA; SURVIVAL; EGGS; | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 590 Tiere (Zoologie) | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-237884 | ||||
| Dokumenten-ID | 23788 |
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