Page 3 - Ecologya_distribution_2006

2152 Verh. Internat. Verein. Limnol.29

,429 N; 33 20 E N; 33 59 E :429 N; 33 20 E N : 3 3 5 9 E

H i*Tl
SI .Hea Hemidiaptom us gurneyi
| 1 ) Arctodiaptomusstephanidesi I H eI Hemidiaptomus ingens
a Arctodi aptom us kerky re ns i s
I Arctodiaptomus salinus
400 N; 33 20 E 400 N; 3l !! E 400 N; 33 20 E 400 N; 33 59 E
429 N; 33 20 E N ; 3 3 5 9 E azg ru; rr 2O e N;33 5s E

.- l----*- -- -l*-_itffi
. Pi"pfomus cyaneus , ,;---
ff:l I 3j I Calanipeda aquaedulcis n
1 1 \ a Pisptomusserbicus * a Capidodiaptomusnumidicus
,
e Both species tA M ix o d iapto m u s ku pelwieseri
j
400 N; 33 20 E 400 N;33 59,E 400 N;33 20 E i 400 N;33 59 E
Fig. 1. Distribution maps of calanoid copepods in Sicily.

common along the circum-Mediterranean (CHevrenu l97l). Sicilian specimens, along
countries, where it populates both lowland tem- with those collected in Oued Tindja (Tunisia),
porary ponds and high altitude permanent ones are morphologically identical to the nomotypi-
(Srenn 1984). cal subspecies while the specimens from Alge-
Hemidiaptomus gurneyi was collected in ria, France and Corse lack the setae at the dis-
eight temporary ponds lying on both siliceous tal end of the endopodite of the male P5, being
and carbonatic substrates. These environments, thus ascribable to the subspecies H. ingens in-
2004).
distributed along the east-west axis of Sicily, ermis (MnnnoNn & NRsEt-l-l-FLoRES
are generally characterised by clear waters, These two subspecies are considered synony-
large dimensions (ranging between 300 and mous by KInnnn (1913) and DussAnr & DEpnvE
4000 m2), altitude between 700 and 1300m (2002).
a.s.l., a dense macrophyte cover and rather low The small-bodied Arctodiaptomus stephani-
conductivity values (65-250 pS cm-r;. desi rs typical of small and shallow temporary
H. ingens was collected in a single, rather ponds, but in Corfu Island it was also found in
large (about 400 m2), temporary, macrophyte- permanent water bodies (ReNcn REoov 1994).
rich water body located in the northwestern It is quite insensitive to chemical and physical
part of the island. Typical of North African tem- characteristics of the environments even though
porary ponds, it has been recorded also in Ca- it slightly prefers small lowland ponds with in-
margue (Dussanr & DEpnvE 2002) and Corse termediate conductivitv values. It is an Eastern