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This 3 page Study Guide was uploaded by Heidi Jones on Sunday March 20, 2016. The Study Guide belongs to ENTM 21000-001 at Purdue University taught by Linda Mason in Spring 2016. Since its upload, it has received 28 views. For similar materials see Introduction to Insect Behavior in Entomology at Purdue University.
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Date Created: 03/20/16
Bilateral gynandromorph Non disjunction in an X chromosome in an xx individual during 1st zygote division Courtship display/offering Spermatophore with food gifts for female katydids.She eats the proteinaceous coating while sperm is being transferred. Prevents Interspecific mating Sperm meets egg during copulation Direct sperm transfer usually invilving the joining of genitalia Gynandromorphs Insect is half males, half female Hawaiian drosophila Males establish territories on plant Head and mouth modified for fighting other males Females come to territories Staying with the female until she How do male insects guarantee paternity oviposits, plugging the female genital tract, scooping out previous sperm Inderect sperm transfer Sperm packet is laid on the ground or presented to the female outside of the body Mosaic gynandromorph Non disjunction multiple times during late divisions. Patches of male and female Most insects Oviparity Embryos in egg nourished by yolk Externally laid Ovipositors in hymenoptera Modified into a sting in some social groups Used defensively or offensively Ovoviviparous Mother retains egg until fully developed No nourishment by mother Few insects Parhtenogenesis Very common, asexual reproduction Offspring identical to mother Males only produce sexuallyds of offspring Polyembryony Produce two or more embryos from 1 egg Used to attract members of the opposite sex Sex pheremones Secreted By glands on the abdomen or wings Detected by antennae Seen in silk moths, beetles, and wasps Think of the flowers that look like bees. The bees try Sexual parasitism to mate with the flowers and pick up the pollination horns Spermatophores Used by collembola, thysanura, and Odonata to create a packet of sperm to be picked up by female Sperm displacement Scooping out previous sperm Swarming Aggregation in large groups, many use specific locations Territorial display/fighting Makes establish territories to attract mates Territories may involve food and other resources Types of displays used to attract Structural modifications, territorial females displays, elaborate behavior Types of mating behavior Swarming, sex pheromones, territorial displaying/fighting, courtship displays/offering Very few insects Viviparity Embryonic development inside the body Mother nourished the embryo Placenta and uterus like strucure What are embryos nourished by The milk gland in viviparous insects
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