Fluctuating asymmetry and fractal dimension of the sagittal suture as indicators of inbreeding depression in dama and dorcas gazelles

被引:23
作者
Alados, CL [1 ]
Escos, J [1 ]
Emlen, JM [1 ]
机构
[1] NATL BIOL SERV,NW BIOL SCI CTR,SEATTLE,WA 98115
来源
CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE | 1995年 / 73卷 / 10期
关键词
D O I
10.1139/z95-231
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
The effects of inbreeding on the developmental instability of skulls of dorcas (Gazella dorcas) and darna (G. dama) gazelles were investigated. In total, 132 dorcas gazelle skulls and 74 dama gazelle skulls from the Estacion Experimental de Zonas Aridas in Almera, Spain, were measured. The fluctuating asymmetry of 9 meristic characters, consisting of the numbers of foramina on the two sides of the skull and mandible, was calculated. Although only the foramen infraorbitalis showed a significant increase in asymmetry with inbreeding in dorcas gazelles, the sum of the foramina in 5 of the skull regions clearly indicates an increase in asymmetry with inbreeding in both dorcas and dama gazelles. The fractal dimension of the sagittal suture was calculated by means of the coastline method. A greater effect of inbreeding on the sagittal suture in dama than in dorcas gazelle was observed, in concordance with the more evident deleterious effects of inbreeding depression in dama than in dorcas gazelles.
引用
收藏
页码:1967 / 1974
页数:8
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