Taxonomic inventories and assessments of terrestrial snails on the ...

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Figure 14. Mean shell sizes <strong>of</strong> Georissa laevigata in four 0.25-m 2 quadrats at the Mt. Lasu sampling station. Error bars are 1 SE. Figure 15. Mean shell sizes <strong>of</strong> Georissa laevigata in four 0.25-m 2 quadrats at the Mahalang sampling station. Error bars are 1 SE. Figure 16. Mean shell sizes <strong>of</strong> Paropeas achatinaceum in four 0.25-m 2 quadrats at the Mahalang sampling station. Error bars are 1 SE. 18
Table 4. Summary <strong>of</strong> species <strong>of</strong> dead ground shells observed at seven sampling sites in Aguiguan. Sampling Site Dead Ground Shells Observed 1 none 2 none 3 Partula gibba Férussac, 1821 4 Partula gibba Férussac, 1821 Partula langfordi Kondo, 1970 Gonaxis kibweziensis (Smith, 1894) Pythia scarabaeus (Linnaeus, 1758) Lamprocystis sp. 5 Partula gibba Férussac, 1821 Omphalotropis spp. Allopeas sp. Paropeas achatinaceum (Pfeiffer, 1840) Elasmias quadrasi (Möllendorff, 1894) 6 Partula gibba Férussac, 1821 Partula langfordi Kondo, 1970 Gonaxis kibweziensis (Smith, 1894) Pythia scarabaeus (Linnaeus, 1758) cf. Pacificella variabilis Odhner 1922 Omphalotropis cf. elongatula Omphalotropis spp. Subulina octona (Bruguière, 1792) 7 Partula gibba Férussac, 1821 Table 5. Mean densities <strong>of</strong> extant ground-dwelling <strong>snails</strong> at two sites in Aguiguan. Densities are presented as mean ± S.D. in four 1-m 2 quadrat samples at each site. Total numbers <strong>of</strong> <strong>snails</strong> are given in parentheses. Site 5 Site 6 Georissa biangulata --- 0.5 ± 1.0 (2) Georissa laevigata 33.3 ± 26.3 (133) 46.5 ± 26.8 (166) Palaina hyalina 35.0 ± 61.3 (141) 0.3 ± 0.5 (1) Palaina taeniolata 80.8 ± 73.4 (323) 15.3 ± 6.2 (61) 19
Page 1: Taxonomic
Page 4 and 5: CONTENTS Abstract iii Introduction
Page 6 and 7: MATERIALS AND METHODS Tinian, the t
Page 8: Figure 2. Map of T
Page 11 and 12: Figure 4. An investigator collectin
Page 13 and 14: Figure 7. A “midden” of
Page 15 and 16: Table 1. Continued. Location GPS Ge
Page 17 and 18: Table 2. Species assemblage <strong
Page 19 and 20: Figure 8. Size-frequency distributi
Page 21: Figure 12. Size-frequency distribut
Page 25 and 26: Figure 18. Size-frequency distribut
Page 27 and 28: Figure 22. Mean shell sizes <strong
Page 29 and 30: young. By mid-1954, the population
Page 31 and 32: Table 6. Land snai
Page 33 and 34: conservation efforts should include
Page 35 and 36: Lydeard, C., R.H. Cowie, W.F. Ponde

Taxonomic inventories and assessments of terrestrial snails on the ...

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