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Table 2 Stage composition of Caenorhabditis populations

From: Population dynamics and habitat sharing of natural populations of Caenorhabditis elegans and C. briggsae

Sample ID Substrate type Substrate ID Sample weight (total) Population in plated sample Total census (Log) Population stage? Species
O661 fruit Rosaceae - Malus domestica 52 (94) ~ 30, all stages 2 P1 Cbr (9/9)
O662 fruit Rosaceae - Malus domestica 25 (39) ~ 500, 20 ad, 300 d, 100 L2d, 100 L1 3 P3 Cbr (20/20)
O663 fruit Rosaceae - Malus domestica 15 (23) ~ 20 (d?) 2 ? Cbr (12/12)
O664 fruit Rosaceae - Malus domestica 10 (20) ~ 10,000, 250 ad, 7000 d, 3000 L2d 5 P3 Cbr (17/17)
O665 fruit Rosaceae - Malus domestica 19 (32) ~ 2,000, 60 ad, 600 d, 600 L2d, 600 L1 4 P3 Cbr (18/18)
O666 fruit Rosaceae - Malus domestica 27 (44) ~ 30 (d?) 2 ? Cbr (5/5)
O667 fruit Rosaceae - Malus domestica 46 (83) 2 (1 ad, 1 L2d) 1 ? Cbr (2/2)
O668 fruit Rosaceae - Malus domestica 26 (43) ~ 500-, 40 ad, 20 L4, 20 L3, 60 d, 200 L2, 100 L1 3 P2 Cbr (18/18)
O669 fruit Rosaceae - Malus domestica 22 (37) ~ 1000+, 100 ad, 100 L4, 100 L3, 500 L2d, 500 L1,10 d 4 P2 Cbr (20/20)
O670 fruit Rosaceae - Malus domestica 36 (62) 1 1 ? Cbr (1/1)
S101 stem Apiaceae - Heracleum sphondylium 6 ~ 30, dauers, 1 L3, all stages 2 P Cel (6/6)
S102 stem Asteraceae 4 ~ 30, non-dauer larvae 2 P1 Cel (6/6)
S103 stem Asteraceae - Cirsium oleraceum? 8 ~ 2000 total, proportions ca. 30 ad, 200 d, 100 L2d, 100 L1 4 P3 Cel (6/6)
S104 stem Asteraceae - Petasites sp. 1 2 dauers (L4 next day) 1 D Cel (3/3)
S105 stem Asteraceae - Cirsium oleraceum? 5 ~ 1000 total, proportions ca. 5 ad, 10 L4, 5 L3, 50 L2d, 50 L1 3 P2 Cel (6/6)
S106 stem Apiaceae - Heracleum sphondylium 1 ~ 500 total, proportions ca. 30 ad, 15 L4, 10 L3, 30 L2, 30 L1 3 P1 Cel (6/6)
S107 stem Asteraceae - Petasites sp. 4 6, stage unclear 1 ? Cel (6/6)
S108 3 snails 3 snails   - 0 - -
S109 stem Asteraceae - Cirsium oleraceum? 2 few, at least 1 dauer, next day 1 L2 1 ? Cel (5/5)
S110 stem Asteraceae - Petasites sp. 6 ~ 50, 5 ad, 5 L4, 5 L3, 5 d ? 2 P Cel (6/6)
  1. Scoring of Caenorhabditis populations in ten Orsay apples (O661-670) and ten Santeuil samples (S101-S110). These sets were chosen to represent a variety of Caenorhabditis population size and type, and maximize the proportion of positive samples (that is, the presence of Caenorhabditis is less frequent than would be suggested by these sets; see Additional Files 1 and 2 and Figure 5). Only a part of each apple was analyzed, which is taken into account for in the total census. Weight is in grams. Total census is on a Log scale. d: dauer larva. ad: adult. The tentative stage of the population is indicated: D, dauer stage; P, proliferating; P1, early stage of proliferation (no dauers); P2, intermediate stage (L3 and L4 stages present, as well as L2d or dauers); P3, late stage (many L1, L2d, dauers). The Caenorhabditis species was identified for a set of individuals of each population, as indicated in the last column. ~, approximately; Cbr: C. briggsae; Cel: C. elegans.