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Insect senses

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babijovo's version from 2018-03-21 02:31

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Question Answer
most insects detect temperature withantennae
associated with humidity receptors in the same sensillumAntennal temperature receptors
where are themoreceptors foundarolium and pulvilli of the tarsi / legs
Fire Beetles: Detection and orientation to distant fires is achieved bydetection of infrared radiation by pit organs next to the coxal cavities of the mesothoracic legs that are exposed when the beetle is in flight.
poikilothermicunable to maintain a constant temperature independent of their surrounding conditions
Behavioral Thermoregulationectothermy
active during the daydiurinal/ nocturnal
Some insects can act as if they were “endothermic”flight muscles have a very high metabolic rate and produce a lot of heat
chemoreceptorstarsi, antennae, mouthparts, ovipositor
semiochemicals Deliver behavioral messages; can be volatile/gas - like, chemicals
pheromonesIntraspecific communication volatile, derived from epidermal cells
sexual scent glands on female Lepidoptera eversible sacs or pouches between the eighth and ninth abdominal segments
Functions of pheromonessex, aggrigation, alarm, territorial
allelochemicalsinterspecific
Kairomonebenefit the receiver but disadvantage the producer (interspecific)
Allomonebenefit the producer by modifying the behavior of the receiver although having a neutral effect on the receiver
Synomone sbenefit both interspecific
The basic components needed for visionlens, photoreceptors, nervous system complex
photoreceptive structure rhabdom
rhabdom It is a rod-like structure, secreted by an array of 6-8 specialized neurons ( retinula cells), and centered on the optical axis just below the crystalline cone
lens is focused inthe crystalline cone
the cuticle covering the ocellus is transparent and curved into a corneal lens
light falling onto the rhabdom changes configurationtriggering a change of electrical potential across the cell membrane
bioluminescencemostly located on chest region of abdomen
bioluminescence color and wavelengthMostly yellow - green - 520 - 650 nm
stimuli used by blood feedersvisual, odor, heat
light sensistive part of compound eyesrhabdom
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