. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 6000 i ??4000 - = 2000 - January July October. January October Cohort Figure 3. Variation in life-history traits among three allogeneic contact treatments and four cohorts in the colonial ascidian Botryllus .schlnsseri, grown in Monterey Bay, California. Note that for fused colonies, traits are presented for each genotype within the colony. Means plus one standard deviation are shown. Sample sizes for all life-history traits are given in parentheses in graph A. Sample sizes are low in some groups due to mortality of some col
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 6000 i ??4000 - = 2000 - January July October. January October Cohort Figure 3. Variation in life-history traits among three allogeneic contact treatments and four cohorts in the colonial ascidian Botryllus .schlnsseri, grown in Monterey Bay, California. Note that for fused colonies, traits are presented for each genotype within the colony. Means plus one standard deviation are shown. Sample sizes for all life-history traits are given in parentheses in graph A. Sample sizes are low in some groups due to mortality of some colonies before reaching sexual maturity (compare sample sizes with those in Fig. 5). Data on isolated colonies were published previously as Figure 2 in Chadwick-Furman and Weissman (1995b). ceous were especially high at our site (see Results). Yet, because our survey of contact frequencies was based on a one-time observation, which inherently underestimates con- tacts throughout the life of a colony, lifetime contact rates between colonies of Botrvllus xchlosseri and other sessile organisms at Monterey are even higher than those presented here (see Results). Our limited manipulation of colonies in one of the cohorts of Botnilux schloxseri (born on 15 October 1990) indicates that xenogeneic interaction with Botrylloides violaceous results in a level of fecundity inter-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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