Essays about: "Dragonflies"
Showing result 6 - 8 of 8 essays containing the word Dragonflies.
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6. Forest lakes affected by forestry - how resilient are dragonfly communities to logging in Central Sweden?
University essay from Sektionen för ekonomi och teknik (SET)Abstract : The main cause of environmental disturbance in the Fennoscandian boreal forests today is forestry. Natural disturbances are important to maintain diversity, but anthropogenic disturbance, such as forestry, differs in many ways from the natural ones. Forestry is a big industry in Sweden and only a small remnant of old-growth forest is left. READ MORE
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7. Relationship between mate guarding strategies and ovarile number in Libellulidae (Odonata)
University essay from Sektionen för ekonomi och teknik (SET)Abstract : In Libellulidae there are two types of egg-laying behaviour, non-contact guarding where the male accompany the female during oviposition and tandem guarding where the male is physically coupled with the female. These egg laying strategies also shows differences in egg size distribution and egg size. READ MORE
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8. Differences in exocuticle thickness in Leucorrhinia dubia (Odonata) larvae from habitats with and without fish
University essay from Sektionen för ekonomi och teknik (SET)Abstract : Many prey species are able to develop different morphological structures as defence against for example predators. Some of these structures are induced only by individuals exposed to a predator. This phenomenon is called phenotypic plasticity. READ MORE