Sökning: "community traits"

Visar resultat 1 - 5 av 93 avhandlingar innehållade orden community traits.

1. 1. Community Robustness Analysis : Theoretical Approaches to Identifying Keystone Structures in Ecological Communities

   Författare :Sofia Berg; Tomas Jonsson; Bo Ebenman; Daniel Stouffer; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : Most of the world’s ecosystems suffer from stress caused by human activities such as habitat destruction, fragmentation, overexploitation of species and climate change. These factors affect the reproduction and/or survival of individual species as well as interactions between species in ecological communities. LÄS MER

3. 2. Plant community assembly in grazed grasslands

   Författare :Bryndís Marteinsdóttir; Eriksson Ove; Cousins Sara A. O.; Johan Ehrlén; Meelis Pärtel; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Assembly rules; dispersal limitation; environmental filtering; establishment limitation; ex-arable fields; functional traits; landscape history; semi-natural grasslands; seed bank; seed augmentation; seed rain; trait based filtering; Plant Ecology; växtekologi;

   Sammanfattning : Species assembly into local communities from the surrounding region can be caused either by species failure to reach the site (i.e. seed limitation) or to establish (i.e. LÄS MER

4. 3. Samhällsarbete i Norden : Diskurser och praktiker i omvandling

   Författare :Päivi Turunen; Verner Denvall; Matts Mosesson; Bengt Börjesson; Växjö universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Community strategies; community policy and practice; community work; governance; local partnership; regeneration; social policy; social work; welfare mix; third decentralisation and third sector; Social work; Socialt arbete;

   Sammanfattning : The dissertation deals with an inquiry concerning how the transformation of community work can be understood from a comparative perspective within the framework of social work in Scandinavia. Community work is examined by means of two main studies: an international literature review and an empirical study in four Nordic countries (Denmark, Finland, Norway and Sweden). LÄS MER

5. 4. A developmental perspective on psychopathic traits in adolescence

   Författare :Selma Salihovic; Margaret Kerr; Henrik Andershed; Randall. T. Salekin; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; psychopathic traits; adolescents; development; stability; change; parental behavior; subgroups; parenting; Psychology; Psykologi;

   Sammanfattning : More than half of known crime is committed by 5-6% of the criminal population. Who are these people? Research has shown that it is likely that a majority of these individuals are characterized by having a psychopathic personality. Interestingly, research has shown that psychopathic features are not unique to adults. LÄS MER

7. 5. Antisocial behavior in adolescence : the role of individual characteristics

   Författare :Henrik Andershed; Margaret Kerr; Sten Levander; David J. Cooke; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; youths; adolescents; antisocial behavior; aggressive behavior; violent behavior; individual characteristics; personality traits; psychopathic traits; psykologi; Psychology; Psykologi; Psykologi; Psychology;

   Sammanfattning : The main aim of this dissertation is to investigate whether traits on the level of the individual are important in understanding violent, frequent antisocial behavior among adolescents. The first of the four studies included in this dissertation asks whether individual-level explanations are going to be a fruitful approach at all. LÄS MER