|
Intrusive species - Mostly sylvatic, but many adult
specimens are reported inside human dwellings, probably attracted there
by light or introduced by passive carriage (marsupials, for instance). In
this situation, there is no evidence of colonisation (eggs, nymphs and
exuviae). |
|
Domiciliary species - Characterised by the presence
inside houses or peridomiciles of adults and nymphs, eggs and exuviae,
which means that the complete cycle of the insect was occurring in
domestic environment. The resulting colonies are not very abundant and
represent merely a tentative adaptation to houses. It is not necessarily
a permanent situation and a domiciliary species can progressively
disappear from the houses without any control intervention. |
|
Domestic species - The definition includes the
aforementioned observations for domiciliary species, with an additional
criterion related to the type of geographic extension. It is no more a
local, geographically restricted observation, but rather concerns a more
widely extended territory with obvious arguments supporting migration by
passive carriage. It is, for instance, a discontinuous geographic
extension, with gaps apparently unexplained unless the human intervention
is admitted. Importantly, sylvatic populations/foci can also exist for
the species considered as domestic, as it is well documented even for the
highly domesticated emblematic species, Triatoma
infestans (Dujardin et al. 2002, Noireau & Dujardin
2010). |
