The Insects - Outline of Entomology 3th Edition - Chapter 1 ppt
The Insects - Outline of Entomology 3th Edition - Chapter 1 ppt
... kcal 21. 5% 13 .2% 13 .0% 19 .7%Protein 37 g 38.4 26.3 76.3 18 .1 Calcium 1 g 4.0 5.0 35.5 18 .6Phosphorus 1 g 43.8 54.6 69.5 31. 4Magnesium 400 mg 10 4.2 57.8 13 .5 7.5Iron 18 mg 41. 7 10 .6 19 7.2 ... numbers of insects is the role of sexual selection in the diversifica-tion of many insects. The propensity of insects tobecome isolated in small populations (because of the fine scale of their ... mg 680.0 70.0 12 0.0 70.0Zinc 15 mg – – 15 3.3 15 8.0Thiamine 1. 5 mg 8.7 – 244.7 2 01. 3Riboflavin 1. 7 mg 67.4 – 11 2.2 13 1.7Niacin 20 mg 47.7 – 26.0 38.9Fig. 1. 2 A mature larva of the palm weevil,...
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The Insects - Outline of Entomology 3th Edition - Chapter 6 pptx
... further discus-sion of the actions of eclosion hormone). Apolysis at the end of the fifth larval instar marks the beginning of a prepupal period when the developing pupa is pharatewithin the ... case when the photoperiodic response of the maternal generation of silkworms affects the eggs of the next generation. The ability of insects to recognize seasonal photo-period and other environmental ... 36°C:Temperature (°C) 14 16 20 24 28 30 32 34 36K 10 08 2 211 2834 29 21 2866 2755 28 61 3 415 3882Thus, the K-value for Ae. aegypti is approximately inde-pendent of temperature, except at extremes (14 and34–36°C),...
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The Insects - Outline of Entomology 3th Edition - Chapter 9 ppt
... complex circulation of air through the passageways of the nest, as illustrated for the above-ground nest of the African Macrotermes natalen-sis in Fig. 12 .10 . The origin of the mutualistic relationship ... further experimental evidence is required toquantify these beneficial roles.9 .1. 1 Root-feeding insects Out -of- sight herbivores feeding on the roots of plantshave been neglected in studies of ... farming by leaf-cutter ants The subterranean ant nests of the genus Atta (15 spe-cies) and the rather smaller colonies of Acromyrmex(24 species) are amongst the major earthen construc-tions in...
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The Insects - Outline of Entomology 3th Edition - Chapter 2 pot
... a poison-injecting sting (Fig. 14 .11 ) and the eggs areejected at the base of the sting. In all other cases, the eggs pass down a canal in the shaft of the ovipositor(section 5.8). The shaft ... defensive and other com-pounds are products of the epidermis, which is a near-continuous, single-celled layer beneath the cuticle.Many of these compounds are secreted to the outside of the insect ... Curculionidae, the ventral surface of some tarsomeres is clothed withadhesive setae that facilitate climbing. The left side of the vignette for this chapter shows the underside of the tarsus of the leaf...
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The Insects - Outline of Entomology 3th Edition - Chapter 3 potx
... mixture of hormones, including JH-I, JH-II, JH-III, and JH-0. The occurrence of mixed-JH-producing insects (such as the tobacco hornworm, Manduca sexta)Box 3 .1 Molecular genetic techniques and their ... including: the meta-bolism of carbohydrates, lipids, and nitrogenous com-pounds; the storage of glycogen, fat, and protein; the synthesis and regulation of blood sugar; and the syn-thesis of major ... by the plant. By comparison,a macerate-and-flush strategy is typical of Heteroptera,such as mirids and coreids. These insects disrupt the tis-sues of plants or other insects by thrusting of the...
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The Insects - Outline of Entomology 3th Edition - Chapter 4 ppsx
... that of its neigh-bors and together the array of all ommatidia provides the insect with a panoramic image of the world. Thus, the actual image formed by the compound eye is of aseries of apposed ... insensitive to the wing tone of males of their species. Neither can the male detect the wing tone of immature females – the Johnson’s organin his antenna responds only to the wing tone of physio-logically ... The dynamics (the time-varying pattern) of air movementgives information on the nature of the stimulus (andthus on what type of animal is approaching) and is indic-ated by the properties of...
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The Insects - Outline of Entomology 3th Edition - Chapter 5 pot
... oviposition in insects. 5 .1 BRINGING THE SEXES TOGETHER Insects often are at their most conspicuous when syn-chronizing the time and place for mating. The flashinglights of fireflies, the singing of crickets, ... transfer of sperm via the insertion of part of the male’s aedeagus (edeagus), the penis, into the repro-ductive tract of the female. In males of many species the extrusion of the aedeagus during ... allow the valvesto slide back and forth on one another. Such move-ment, and sometimes also the presence of serrations on the tip of the ovipositor, is responsible for the pier-cing action of the...
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The Insects - Outline of Entomology 3th Edition - Chapter 7 pdf
... stylets, the rightClass Insecta (true insects) 19 1TIC07 5/20/04 4:45 PM Page 19 1Box 7 .1 Relationships of the Hexapoda to other Arthropoda The immense phylum Arthropoda, the joint-legged animals, ... aswings held roof-like over the abdomen, fore wingseither membranous or in the form of tegmina of uni-form texture, and with the rostrum arising ventrallyclose to the anterior of the thorax, ... origin to the rest of the Hexapoda (see Box 7 .1) . IfCollembola do belong to the Hexapoda, then they formeither the sister group to Protura comprising the cladeEllipura or alone form the sister...
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The Insects - Outline of Entomology 3th Edition - Chapter 10 pdf
... 3.5, Fig. 3 .11 ).Aquatic insects and their oxygen supplies 2 41 TIC10 5/20/04 4:43 PM Page 2 41 258 Aquatic insects Box 10 .6 Other aquatic ordersTIC10 5/20/04 4:43 PM Page 258240 Aquatic insects Every ... hundreds of kilometers from shore in the Pacific Ocean. The dis-tribution of these insects coincides with mid-oceanicaccumulations of flotsam, where food of terrestrial origin supplements a diet of ... the basal abdominal seg-ments or near the anus (Fig. 10 .1) – sometimes extrus-ible from the anus – or on the mouthparts, neck, orthorax, or lacking altogether. The cerci are usually multi-segmented,...
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The Insects - Outline of Entomology 3th Edition - Chapter 11 ppsx
... sucked up into the insect’s gut. Only the stylets enter the tissues of the host plant (Fig. 11 .4a). They may penetrate Phytophagy (or herbivory) 2 71 TIC 11 5/20/04 4:42 PM Page 2 71 280 Insects and ... the award of the UNESCO Science Prize in 19 85.Taxonomists made essential contributions by estab-lishing the true identities of the salvinias and the weevils.Fig. 11 .6 Pie chart showing the ... Interpreting the early evolution of the angiosperms is contentious, partly because of the paucity of fossilized flowers prior to the period of radiation, and also because of the apparent rapidity of the...
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