Sökning: "vocalisations"

Hittade 3 avhandlingar innehållade ordet vocalisations.

  1. 1. Species Limits and Systematics in Some Passerine Birds

    Författare :Per Alström; Timothy M. Crowe; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organismic biology; Mirafra; Seicercus; Phylloscopus; Motacilla; species concepts; species limits; phylogeny; morphology; vocalisations; mitochondrial DNA; nuclear DNA; incongruence; Organismbiologi; Organism biology; Organismbiologi; systematisk zoologi; Systematic Zoology;

    Sammanfattning : I use morphological, vocal, molecular, behavioural, ecological and distributional data to re-evaluate the systematics of three passerine bird groups, the Mirafraassamica complex (bush-larks), the genus Seicercus ("spectacled-warblers"; with emphasis on the the S. burkii complex) and the genus Motacilla (wagtails). LÄS MER

  3. 2. Vowel-Zero Alternations in West Slavic Prepositions: A Corpus Based Investigation of Polish, Slovak and Czech

    Författare :Morgan Nilsson; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Polish; Slovak; Czech; vocalisation; prepositions; vowel-zero alternations; corpus; phonology.;

    Sammanfattning : The aim of this thesis is to investigate the scope of the vowel―zero alternations in prepositions in the three major West Slavic languages, i.e. Polish, Slovak and Czech, and to formulate, within the Government Phonology framework, the general phonological principles responsible for the majority of these alternations. LÄS MER

  4. 3. Getting informed in a risky world : risk assessment, predator information & parental decisions

    Författare :Nicole Schneider; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Predation ultimately affects the fitness of individuals. In nest building species like birds, the predation of dependent offspring is the most important source of reproductive failure, favouring the selection of parental adaptations to enhance offspring survival. LÄS MER