Vol. XLVI January, 1924 Xo. I BIOLOGICAL BULLETIN STUDIES ON THE INFLUENCE OF INANITION ON THE DEVELOPMENT AND THE DURATION OF LIFE IN INSECTS. STEFAN KOPEC. ! I'.-llli IK FOR A<;RICeLTCRAL RESEARCH. PlI.UVY. i WITH 3 TABLES. CONTENTS. i I IM mtliH ii. ol ::. .1:. it ion on the duration of separate dcvclnpiin-nt.il -t. . 2. Inanition anil it-tx-arinK <>n the physiology of insect metarnoi; <. Inaiiiiii.ii and certain problems of growth.. . .}. A'l.i]>i.iti"ii of organisms to starvation. Some remarks on tin-|n..M.. in \ death .......................... i ^ -iiiimiary ............................. Hit experiments were performed on the caterpillars oi tin-ii'iiiniun moth Lymantria dispar I.. Each e.xprrinu-nt ri.n-i-ifi| "I ~iAcr.il separate broods. The caterpillars <lcii\in^ It "in mic \\i-re divided in two parts and put in t\\<> j.ir-. "iic p.irt suliji-cted to starvation, the other, d.iiK ted. was u-cd .1-a control. I lie inanition applied in the-r >nnlic-u.t-tnt.il but intcnninciii. the caterpillars being totally de|>ri\ed < .|" t'.,. ,<1 dur-ing (crt.iiu days and fed ad libitum during the rein. lining;. Th-distribution of these clays was different in different -eric-of ex-periments, .1-may easily be -ecu from t.ible-i to 3. The obtained pupa-beinu kept e.nli -ep.ir.iiely. it \\.i-p'--iblc to -ludy the iiillui'iuc M| -i.irx.itidii imt onl\ on tlu-duration of the stage "I i .iterpillars, but also on that of e.u h rhr\-.ili-.md e.u I) moth. hi the chief e\l)criiucllt-'-eric-.1 to /' the whole material consisted of u.Vi -tarxeil caterpillar-, and >>4^ -pccinicn-lor control; 547 |>up.e \\crc obtaineil from the caterpillar--ubjei ted to -tarxation and 70^ from control lar\a-; the\ prodin'i-il 470 "-tar\ed" and <>N.^ comn.1 moth-a'f. Table I Phe increased ; Papei iii'in tin-1 .ili..i.ttnt\-ni l-;\priinirin:il M.irphnli>i;y.. i i \l I n-\ .:.' Polonai . Ruralt : Pulm \'t>\. i. i i I
BioStor
