Table 4 Comparison of population parameters of tabanids collected from oiled and non-oiled areas across a period of six years after the oil spill.
From: Recovery of horse fly populations in Louisiana marshes following the Deepwater Horizon oil spill
2010/2011 | 2015 | 2016 | ||||
|---|---|---|---|---|---|---|
Not oiled | Oiled | Not oiled | Oiled | Not oiled | Oiled | |
Adult fly counts | High | Low | n/a | n/a | High | Rising |
Larvae recovered from marsh soil | High | Low | n/a | n/a | High | Rising |
Effective population size | High | Low | High | Low | High | High |
Number of breeders | High | Low | High | Low | High | High |
Number of families | High | Low | High | High | High | High |
Number of migrants/gene flow | High | Low | High | Rising | High | High |
Genetic bottlenecks | No | Yes | No | No | No | No |
