Biology Reference
In-Depth Information
Figure 1.6, cont'd
A species complex is a group of closely related species that are often
indistinguishable based on morphology alone. Reference to a complex may
be indicated by referring to the species as ' sensu lato ' or ' s.l. ' (e.g. Anopheles
gambiae s.l. ) meaning 'in the broad sense', whereas ' sensu stricto ' or ' s.s. ' ('in
the strict sense') indicates the species alone (often a sibling within a species
complex has the same name as the complex). The presence of species com-
plexes adds a level of complexity to vector control efforts. Sibling species
that are morphologically indistinguishable and often sympatric within an
area can have such varied bionomics that one sibling is rendered a dominant
vector and the other a non-vector ( Meek, 1995 ; Manguin et al., 2008 ). The
proper identification of species and knowledge of their ranges, often rapidly
altered by expanding agriculture and land use changes ( Amerasinghe et al.,
1991a ; Amerasinghe and Indrajith, 1994 ; Lee, 1998 ; Singh and Mishra, 2000 ;
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