ISSN:
1573-5117
Schlagwort(e):
Lutzia larva
;
predatory behaviour
;
handling time
;
Culex larva
;
prey density
;
aquarium volume
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract The carnivorous mosquito Lutzia (= Culex) raptor devours 20 to 50 larvae (third instar) of Culex fatigans in a day. The predatory capacity of L. raptor is not influenced by changes in volume of water, but significantly influenced by changes in prey density. With increasing prey density, the percentage of prey killed and left unconsumed increases. The duration required to subdue and consume a single larva is 15 min for L. raptor previously deprived of food for 3 to 24 hrs; the handling duration of prey increases to 20 min for the predator previously deprived food for 1 hr. The duration increases with increasing prey size; L. raptor requires 1, 6, 62 or 113 min to handle a single II, III, IV or ‘mini pupa’ of Culex fatigans weighing 0.2,1.2,4.2 and 4.0 mg respectively.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00016459
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