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. 2016 Jul 8;11(7):e0159067. doi: 10.1371/journal.pone.0159067

Table 1. Results showing δ15N and δ13C mean (±SE) of adult male and female pooled mosquitoes regardless of species from habitats enriched using 15N-labelled potassium nitrate, 13C-labelled carbon and un-enriched habitats (controls).

  δ15N   δ13C  
No. of pools n Mean±SE P-value Mean±SE P-value
Controls (non-enriched pools)
    Females 6 24 2.1±0.1 -4.3±0.2
    Males 4 13 3.9±1.7 -7.9±3.6
15N-labelled potassium nitrate habitats 0.005
    Females 8 26 275.6±65.1
    Males 8 29 248.0±54.6
13C-labelled glucose habitats 0.003
    Females 10 22 36.1±5.3
    Males 6 40   38.5±6.9  

Each pool contained a maximum of 4 mosquitoes; n is the total number of mosquitoes in the pools; δ is the ratio of the isotopes referenced against international reference (nitrogen = air; carbon = Vienna Pee Dee Belemnite (VPDB)) defined by δX = [(Rsample-Rstandard)/Rstandard] x 1,000 where X is either 15N or 13C; Rsample is the isotopic ratio (15N/14N, or 13C/12C) in the sample, Rstandard is the ratio in the reference; 15N and 13C are stable isotopes of Nitrogen and Carbon respectively.