. Brimleyana. Zoology; Ecology; Natural history. Salamander Egg Sizes 79 A. maculatum E. wilderae D. aeneus D. ochrophaeus D. santeetlah. 40 60 Percent of variation 100 Fig. 4. Relative contributions of intraclutch and interclutch variation in egg size to overall variance. For each species, a separate model II one- way ANOVA of egg size was conducted with clutches as the factor, thus a total of five ANOVAs. Contributions are calculated using the factor and error sum-of-squares of the ANOVA table. Black bars represent intraclutch variation, and hatched bars represent interclutch variation. Inte
. Brimleyana. Zoology; Ecology; Natural history. Salamander Egg Sizes 79 A. maculatum E. wilderae D. aeneus D. ochrophaeus D. santeetlah. 40 60 Percent of variation 100 Fig. 4. Relative contributions of intraclutch and interclutch variation in egg size to overall variance. For each species, a separate model II one- way ANOVA of egg size was conducted with clutches as the factor, thus a total of five ANOVAs. Contributions are calculated using the factor and error sum-of-squares of the ANOVA table. Black bars represent intraclutch variation, and hatched bars represent interclutch variation. Interclutch and Intraclutch Contribution to Variation Partitioning of the variance components demonstrated the respective contributions of intraclutch and interclutch variation to the sample variance in egg size (Fig. 4). For E. wilderae and A. maculatum, interclutch contributions to the variance outweighed intraclutch contributions. In all three desmognathines, interclutch and intraclutch contributions were approximately equal. As pointed out earlier, A. maculatum females may oviposit a clutch that consists of several clusters. The mean cluster size reported in Table 1 is lower than earlier reports of clutch size in A. maculatum (Bishop 1941, Wilbur 1977, Pfingsten and Downs 1989). This suggests that females of A. maculatum in the southern Appalachians may oviposit clutches that consist of several clusters. Because interclutch variation outweighs intraclutch variation in this species, the possibility remains that several clusters might contribute to a single A. maculatum clutch. This may confound the analysis of intraclutch variation, , the intraclutch CVs for A. maculatum might be underestimates. However, the pooled variation remains as an indicator of potential adaptive variation in egg size at the interclutch Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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