Entomology 3rd edition - C Gillott - Chapter 11 pptx

... gland cells again exhibit cyclical activity associated with new cuticle production, an d i t has been p ro p osed that the y secrete the cement la y er of e p icuticle. T h e cut i c l e, w hi c hi sma i n ly ... e pi cut i c l ean db uc ki n g o f cut i cu li nenve l o p e. (F) Be gi nn i n g o fp rocut i c l e secret i on. (G) Cut i c l e i mme di ate ly after ecdysis. (H) Cuticle...

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... t h e b as i so f X-ray stu di es o f pyr i t i ze d tr il o bi te spec i mens, w hi c h s h ow that trilobites possess a combination of chelicerate and crustacean characteristics, Cisne ( 1974) concluded ... prominent in discussions of arthropod evolution. Althou g h covered b y a thin arthropodlike cuticle (com - prising procuticle and epicuticle, but no outer wax layer—see Chapter...

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... o f car b on di ox id e i n water, com- prises three phases (Fi g ure 1 5 .6): constricted- or closed-spiracle phase, flutterin g -spiracl e p hase, and o p en-s p iracle p hase. In the constricted-s p iracle p hase ... compr i se cut i cu l ar components, ep id erm i s, and basal lamina (Fi g ure 1 5 .2). Ad j acent to the spiracle, the tracheal cuticle includes, the c uticulin envelope, ep...

Ngày tải lên: 06/07/2014, 21:21

... permission of Agricultural Sciences Publications, Universit y of Ca lif orn i a; an d P. DeBac h , D. Rosen, an d C. E. Kennet, 1971, B i o l o gi ca l contro l o f cocc id s by i ntro d uce d n atural ... Biochemical interaction between p lants and insects , Recent Ad v . P h y tochem . 1 0 :425 pp . 6 9 7 THE BI O TI C ENVIRONMEN T accumulated b y cucumber beetles. In Lepidoptera the che...

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... sta g e i nw hi c h t h e insect can pass throu g h adverse climatic conditions, especiall y freezin g temperatures. 4. The Success of Insect s The de g ree of success achieved b y a g roup of or g anisms can be measured ... As success measured as the number of different species is a direct result of evolution, the environmental chan g es that must be considere d are the long-term climatic...

Ngày tải lên: 06/07/2014, 21:21

... Research Council of Canada and the author. B, from R. E. Snod g rass, P rinciples o f I nsect Morpholo gy. Copyright 1935 by McGraw-Hill, Inc. Used with permission of McGraw-Hill Book Company. ] ( see ... (B) cross - section of the proboscis. [From R. E. Snodgrass, P rinciples o f Insect Morphology . Copyright 1935 by McGraw-Hill, I nc. Use d w i t h perm i ss i on o f McGraw-H ill Boo k...

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... most s p ecies are described on the basis of their structure, es p e- ciall y external characters. However, on occasion such “morphospecies” are not equiva- l ent to bi o l og i ca l spec i es (repro d uct i ve l y i so l ate d popu l at i ons); ... ke y . Pictorial ke y s, which can be valuable to both specialists an d n on-specialists, include not only printed material but also user-friendl...

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... aquatic. Occasionally, species form large aggregations on the surfac e o f snow, though the significance of this is not clear. Most Collembola cannot tolerate d esiccation, and those that colonize ... intrinsic gut cellulase. Only rarely are they predaceous. Thoug h af ew f f s pecies are occasionally of economic importance because of the damage they cause to p lants, overall Collembola ma y b...

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... a ll ow i n g ot h er c onspeci c males to occup y the space. Should a receptive female conspeci c enter the territor y and be reco g nized b y the male (probabl y usin g visual cues), he will attempt ... t h e j uven il eort h ea d u l t f orm . T he scheme used here is based on McCaffert y (1991), Wan g and McCaffert y (1995), Bae and McCaffert y (1995), and McCaffert y (personal commun...

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... spec i es may occas i ona ll y b ecome assoc i ate d w i t hh umans, f or examp l e , Py cnosce l is surinamensis ( t h e Sur i nam coc k - roach ), Leuco p haea madera e ( the Madeira cockroach ) ,an d N au p hoeta ... cockroaches, S mithson. M isc.Co ll ect . 134 (10) : 14 7 pp. R oth , L. M. , and Willis , E. R. , 19 6 0 , The biotic associations of cockroaches , S mit h son. Misc. C...

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