Larvae of Lepidopteran Manduca sexta and Spodoptera littoralis are pests of economical importance in several horticultural and agricultural crops. Knowledge of insect feeding preferences and behavior is crucial in order to find economically and ecologically sustainable solutions to the problems caused by these herbivores. The aim of this thesis was to study the behavior and the induced feeding preferences in larvae of M. sexta and S. littoralis when reared on certain host plants. The hypothesis was that larvae of M. sexta would have an innate preference for plants of the Solanaceae family and therefore discriminate the previously experienced nonhost when faced with the choice between a true host and the previous food source.

Tidigare forskning visar att individer med en diagnos inomautismspektrumet (ASD) upplever en större sinneskänslighet vad gällerhörsel, syn och känsel men få studier har undersökt lukt känsligheten. Syftetmed föreliggande studie är att få en djupare förståelse för luktfunktioner hosvuxna med ASD.16 deltagare med ASD (14 kontroller) testades iluktkänslighet, fri- och stödd luktidentifiering. Samtliga deltagaresjälvskattade även den upplevda luktkänslighet samt genomgick ettscreeningtest för autism, The adult spectrum quotient, AQ. Lukt känslighet,fri och stödd luktidentifikation skiljde sig inte åt mellan de båda gruppernaSjälvskattning av luktfunktioner korrelerade signifikant positivt med AQpoäng vilket visar att personer med högre grad av ASD också upplevde sigsom mer luktkänsliga. Föreliggande resultat påvisade att personer medhögre AQ-poäng upplevde att de hade en känsligare luktfunktion.

Lately the popularity to keep different species of dwarf hamsters has increased in Sweden. The requirements of the Swedish legislation to keep hamsters as pets are low which could be a reason for the increasing popularity. Hamsters are in nature generally nocturnal and can travel far distances to find food sources during their active part of the day. Their eyesight is poor, but is compensated by their well-developed hearing and Olfaction. ?Run about balls? are made of plastic and the hamster is placed inside it where after the ball is placed on the floor and the hamster can then run protected outside the cage.

The aim of this study was to describe how body language of humans affects the domestic dog (Canis familiaris) and how it can be implanted in the stressed situation that occur at an animal hospital. The subject is brought to notice because the author has experienced that dogs can get more stressed when a stressed and nervous owner is attending. Humans affect each other through posture, facial expression, voice and movement, and are often driven by their emotions, which can differentiate the verbal communication from the non-verbal communication. This occurs both consciously and unconsciously. Every human uses body language but not everyone knows how it is used or how to understand it.