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| Content Provider | Springer Nature Link |
|---|---|
| Author | Drechsler, H. |
| Copyright Year | 1998 |
| Abstract | An 45 markierten Rothirschen aus dem Harz werden Sterbealter und Todesursachen im Alter von 9 bis 18 Jahren untersucht. Besondere Aufmerksamkeit gilt dabei der Frage, ob sich die aktive Brunfttätigkeit verkürzend auf die Lebenserwartung der Hirsche auswirkt. Es zeigt sich, daß von den 45 Hirschen, die insgesamt 150 Brunftperioden bestritten haben dürften, 3 Hirsche geforkelt wurden. Durch andere Unglücksfälle wurden 7 weitere Hirsche getötet und 5 starben an Altersschwäche. Die restlichen 30 Hirsche wurden auf der Jagd erlegt, so daß in dieser Stichprobe der brunftbedingten Mortalität nur eine geringe Bedeutung zukommt (Tab. 1).Im Alter von 9–16 Jahren treten bei den Hirschen sowohl beim Körper- als auch beim Geweihgewicht keine Veränderungen auf. Zwar nimmt das Körpergewicht während der Brunft um etwa 13% und im Winter zusätzlich um etwa 10% ab, aber bis zum Alter von 16 Jahren glichen die Hirsche bis zum Beginn der Brunft diese Gewichtsverluste wieder aus. Auch hinsichtlich der Geweihstärke wurden bis zum 16. Lebensjahr keine Veränderungen und somit auch keine nachteiligen Wirkungen durch die Brunft festgestellt (Tab. 2).Mit 17–18 Jahren traten bei den Hirschen starke Erschöpfungserscheinungen auf, die zum baldigen Tode führten. Das Höchstalter der Hirsche lag damit etwa 4 Jahre unter dem der Tiere.In the Harz the age and cause of mortality for 45 marked red deer stags between the ages of 9–18 years were determined. Active rutting behaviour as a factor in shortened life expectancy was particularly studied. It was shown that among the 45 deer having a combined total of 150 rutting seasons, 3 were pronged, while 7 died due to accidents, and 5 died of old age. The remaining 30 deer were killed by hunting, so that in this sample mortality due to rutting behaviour is of lesser significance (Table 1). Between the ages of 9–16 years no changes were observed in the body and antler weights of the stags. However, body weight up to the age of 16 years varies seasonally increasing by 13% during the rutting season and decreasing by ca. 10 % during the winter. Neither were changes in respect to antler size up to the age of 16 years observed with no consequent negative effects of rutting behaviour (Table 2).At the age of 17–18 years evidence of great exhaustion was observed among the red deer stags which soon led to their mortality. The greatest age among stags is about 4 years less than that of does.L'âge et les causes de la mortalité ont été étudiés sur 45 cerfs marqués dans le Harz et âgés de 9 à 18 ans. Une attention particulière a été accordée à la question de savoir si un rut actif pouvait raccourcir l'espérance de vie des cerfs. Il s'avère que, des 45 cerfs qui auraient pu participer à un total de 150 périodes de rut, 3 succombèrent des suites de combats. 7 autres cerfs succombèrent suite à d'autres accidents et 5 moururent du fait d'une faiblesse liée à l'âge. Les 30 autres ont été tirés de telle sorte que dans cet échantillon, la mortalité liée à l'activité de rut peut apparaître négligeable. (Tabl. 1).De 9 à 16 ans, on n'observe chez les cerfs mâles aucune différence en ce qui concerne leur masse corporelle ou la masse de leur bois. Il est un fait que, pendant le rut, la masse corporelle subit une perte de l'ordre de 13 % à laquelle s'ajoute une autre perte de 13 % en hiver mais, jusqu'à l'âge de 16 ans, les animaux recouvrent leur poids normal avant la période de rut suivante. De même, jusqu'à l'âge de 16 ans, on n'observe pas de modifications de la masse des bois liées à d'éventuels effets néfastes de l'activité de rut.A partir de l'âge de 17–18 ans, des signes d'épuisement se manifestent qui mènent souvent à une issue fatale. L'âge le plus élevé observé chez les cerfs mâles est ainsi de 4 ans inférieur à celui observé chez les biches. |
| Starting Page | 94 |
| Ending Page | 97 |
| Page Count | 4 |
| File Format | |
| ISSN | 00442887 |
| Journal | European Journal of Wildlife Research |
| Volume Number | 44 |
| Issue Number | 2 |
| e-ISSN | 14390574 |
| Language | French |
| Publisher | Springer-Verlag |
| Publisher Date | 1998-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Animal Ecology Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Animal Science and Zoology |
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