. The Canadian field-naturalist. Natural history; Sciences naturelles. Figure 2. Brackish pool in saltmarsh at St. Omer (site 4) where two females of Sympetnim dcmae were seen ovipositing in the foreground bed of floating algae and Ruppia maritima. The pool is surrounded by Scirpus spp., Jiincus gerardii and Spartina alterniflora. Eight male Sympetrum danae patrolled the edge of this 25 m- pool, which is inundated by saltwater during high spring and fall tides. ing a Chi-square test and percentage frequency else- where in Acadia to predict percentage frequency in Baie des Chaleurs. The test al
. The Canadian field-naturalist. Natural history; Sciences naturelles. Figure 2. Brackish pool in saltmarsh at St. Omer (site 4) where two females of Sympetnim dcmae were seen ovipositing in the foreground bed of floating algae and Ruppia maritima. The pool is surrounded by Scirpus spp., Jiincus gerardii and Spartina alterniflora. Eight male Sympetrum danae patrolled the edge of this 25 m- pool, which is inundated by saltwater during high spring and fall tides. ing a Chi-square test and percentage frequency else- where in Acadia to predict percentage frequency in Baie des Chaleurs. The test also allows the comparison of Chi-square values for individual species, but consider- ing the sample size, the values are most useful to iden- tify species contributing substantially to differences be- tween Baie des Chaleurs and elsewhere, rather than to indicate a specific level of significance. Results Sites and species present For each site, observation dates are given followed by species in alphabetical order and number of indi- viduals seen in brackets. The total for each site and the size and nature of the area surveyed are also gi\en. In cases where we are not the observers, the observers are listed at the end. A total of 18 species of Odonata was encountered in 14 saltmarshes in the Baie des Chaleurs in late summer and autumn. (1) Bathurst (Queen Elizabeth and Youghall streets), New- Brunswick (°N, °W), "l4 August 2005: Aeshna canadensis (25), Enallagma liageni (40), Libelliila quadriuuicidata (2), Somatochlora elongata (4), Sympetmm costiferum (5), S. intenium (25), S. viciniim (4). Total: 7 species. Size: The site included a brackish 'A acre pool. (2) 4 km E of Pointe-a-la-Croix, Quebec (^^N. °W), 15 August 2005: Aeshna canadensis (30), Usfes congener (4), Lestes disjunctiis (2), Synipeirtim costiferum (1), 5. danae (9), S. internum (200). S. obtrusum (2). Total: 7 species. Size: 50 acres traversed, including creeks, pools and a rive
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