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Table 1 Summary statistics for the time series observations of Neotricula aperta population density

From: Observations on Neotricula aperta (Gastropoda: Pomatiopsidae) population densities in Thailand and central Laos: implications for the spread of Mekong schistosomiasis

Population

Sampling period

No. of observations in time series

Mean population density m-2 ± SD

BKL (full)

1991 - 2011

8

289.75 ± 59.88

BKL (w/o outlier)

1991 - 2005

7

310.86 ± 5.05

MHX (full)

1992 - 2011

7

4057.00 ± 1840.08

MHX (w/o outlier)

1992 - 2005

6

4734.00 ± 470.34

Thathot

2004 - 2011

2

516.50 ± 491.44

  1. Data are summarized for the whole series of observations and for a subset of the observations with outliers excluded. BKL, Ban Khi Lek, Khemmarat, Northeast Thailand; MHX, Mahaxai, Khammouanne Province, Laos.