. "We demonstrated an occurrence of the trade-off between dispersal and reproductive capability in females of a flightless wing-polymorphic bug, Pyrrhocoris apterus. Contrary to\u00A0the brachypters, the\u00A0younger\u00A0adult\u00A0macropterous females\u00A0have well developed\u00A0fli"@en . . "8"^^ . . "Disperzn\u00ED a reproduk\u010Dn\u00ED strategie u nel\u00E9tav\u00E9ho pterygomorfn\u00EDho hmyzu" . "C\u00EDlem projektu je prov\u011B\u0159it hypot\u00E9zu, \u017Ee sm\u011Bna (trade-off) mezi reprodukc\u00ED a disperz\u00ED je u samic nel\u00E9tav\u00E9ho pterygomorfn\u00EDho hmyzu, k jeho\u017E disperzi doch\u00E1z\u00ED pouze terestrickou lokomoc\u00ED, hormon\u00E1ln\u011B \u0159\u00EDzena. Hypot\u00E9za bude testov\u00E1na na plo\u0161tici Pyrrhocorisapterus, typick\u00E9m z\u00E1stupci nel\u00E9tav\u00E9ho pterygomorfn\u00EDho hmyzu. Hlavn\u00EDm \u00FAkolem projektu bude prok\u00E1zat, \u017Ee tato sm\u011Bna je regulov\u00E1na prost\u0159ednictv\u00EDm v\u00FDvojov\u00FDch a diurn\u00E1ln\u00EDch zm\u011Bn v\u00A0titru makisteronu A, juveniln\u00EDho a adipokinetick\u00E9ho hormonu. Projekt bude d\u00E1le\u0159e\u0161it vztah mezi n\u00E1stupem histol\u00FDzy nefunk\u010Dn\u00ED l\u00E9tac\u00ED svaloviny, aktivitou enzym\u016F ve svalovin\u011B, ukon\u010Den\u00EDm hladov\u011Bn\u00ED, terminac\u00ED disperzn\u00ED f\u00E1ze a zah\u00E1jen\u00EDm reprodukce, lokomo\u010Dn\u00ED a disperzn\u00ED aktivitou, vyu\u017Eit\u00EDm lipid\u016F, intenzitou adipokinetick\u00E9 odpov\u011Bdi aobsahem energetick\u00FDch rezerv v tukov\u00E9m t\u011Blese. Pozornost bude v\u011Bnov\u00E1na i ot\u00E1zce, do jak\u00E9 m\u00EDry je zm\u011Bna z disperze lokomoc\u00ED do stavu reprodukce ovliv\u011Bna hormony, kritickou hladinou vy\u010Derp\u00E1n\u00ED energetick\u00FDch rezerv, hustotou populace, oplozen\u00EDm samic," . "8"^^ . "http://www.isvav.cz/projectDetail.do?rowId=GA206/03/0016"^^ . . . "Neuvedeno."@en . "GA206/03/0016" . . "Prok\u00E1zali jsme existenci trade-off mezi disperz\u00ED a reprodukc\u00ED u samic nel\u00E9tav\u00E9 pterygomorfn\u00ED plo\u0161tice Pyrrhocoris apterus. Nozd\u00EDl od brachyptern\u00EDch\u00A0dosp\u011Blc\u016F, v\u0161echny mlad\u0161\u00ED dosp\u011Bl\u00E9\u00A0samice makroptern\u00ED morfy maj\u00ED dob\u0159e vyvinut\u00E9\u00A0l\u00E9tac\u00ED svaly\u00A0s n\u011Bkolika akti"@cs . . . . . . "0"^^ . . "The aim of our project is to test the hypothesis that trade-off between reproduction and dispersal capability in the flightless wing-polymorphic insects which disperse by walking only, is under endocrine control. Hypothesis will be tested on the bugPyrrhocoris apterus, the representative of insects whose both macropters and brachypters do not fly. The most important part of the project is an experimental proof that life history trade-offs in females of this species are precisely regulated bydevelopmental and diurnal changes in the titer of makisterone A, juvenile and adipokinetic hormones. Project will include also the study of relationships betwen temporal patterns of histolysis of non-functional flight muscles, muscle enzyme activities,termination of fasting, start of reproduction, locomotory and dispersal activities, lipid utilization, content of energetic reserves in the fat body and level of adipokinetic response. A special attention will be paid to the question how is the switch"@en . . . . . "0"^^ . . . . "1"^^ . . . "2009-01-15+01:00"^^ . "Dispersal and reproductive strategies in flightless pterygomorphic insects"@en .