Essays about: "ihåliga träd"

Found 3 essays containing the words ihåliga träd.

  1. 1. Fladdermöss i parkmiljö och stadsnära natur

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Lidia Prykhodko; [2019]
    Keywords : fladdermöss; fragmentering; vattenmiljöer; parker; grönområden; holkar; stadsmiljö; ihåliga träd; trädkorridorer; ljusföroreningar; artificiellt ljus;

    Abstract : Kunskapen om fladdermöss har genom tiderna varit bristfällig, dessa djur har inte sällan förknippats med mörker, ohyra och obehag. Detta börjar dock förändras i takt med tillkomsten av nya lagar som bland annat ger fladdermössen ett starkt skydd på både nationell och internationell nivå. READ MORE

  3. 2. Medium-term population development and responses to habitat conditions of a beetle, Osmoderma eremita, inhabiting hollow trees

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Olle Tranberg; [2016]
    Keywords : Osmoderma eremita; European hermit beetle; metapopulation; colonization and extinction; habitat; saproxylic species; tree hollows; Pedunculate oak; Quercus robur;

    Abstract : Old oaks play an important role in the southern Swedish landscape by maintaining available habitats for many saproxylic species, several of which today are on the international Red List of threatened species. Old oaks can develop important habitats, such as hollows with wood mould, which is the habitat for the European hermit beetle (Osmoderma eremita). READ MORE

  4. 3. Morphological and functional differences between rhamphorhynchoid and pterodactyloid pterosaurs with emphasis on flight

    University essay from Lunds universitet/Geologiska institutionen

    Author : Elisabeth Einarsson; [2004]
    Keywords : pterosaurs; Rhamphorhynchoidea; Pterodactyloidea; morphology; wings; flight; aerodynamics; air sacs; flygödlor; morfologi; vingar; flygning; aerodynamik; luftsäckar; Earth and Environmental Sciences;

    Abstract : To explain how the morphological differences between Rhamphorhynchoidea and Pterodactyloidea affect flight performances and life styles wings and claws of pterosaur fossils from collections in Uppsala and Munich have been measured. The measured specimens are from Jurassic limestones and shales in Solnhofen, Eichstätt and Holzmaden and include Dorygnathus, Campylognathoides, Rhamphorhynchus, Anurognathus, Pterodactylus, Germanodactylus and Gallodactylus. READ MORE