Sökning: "Species coexistence"

Visar resultat 6 - 10 av 31 avhandlingar innehållade orden Species coexistence.

  1. 6. Species interactions in streams - effects of predation, competition and ecosystem properties

    Författare :Erika Nilsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; behaviour; species abundance; stable isotopes; habitat complexity; niche width; niche overlap; competition; streams; predation;

    Sammanfattning : Stream ecosystems are dynamic and they have an inherent environmental variability. Organisms that live in streams are adapted to the continuously changing environment and the presence or absence of species are determined by their environmental requirements, while abundance is most often affected by interactions, such as competition and predation, with other species that are found in the same habitat. LÄS MER

  3. 7. Coexistence of Sphagnum species in relation to physical environment and competition

    Författare :Håkan Rydin; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 8. Coexistence and distribution in some marine fish species, especially Pomatoschistus minutus (Pallas) and P. microps (Krøyer)

    Författare :Anne-Marie Wiederholm; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 9. Ecological significance of within-species leaf trait variability : a test using an island area gradient

    Författare :Bright Boye Kumordzi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : There is growing recognition of the need to incorporate within-species trait variability into trait-based studies to improve understanding of community assembly and how plant communities drive ecosystem processes. Given that many plant species can occupy a wide range of environmental conditions, studies that have traditionally focused solely on between-species trait variability and neglected within-species trait variability could lead to an incomplete picture of how plant traits influence community- and ecosystem-level properties. LÄS MER

  7. 10. Sex, Molecules, and Gene control : Ecophysiological and evolutionary aspects of key sponge species from Antarctic shallow waters and the deep sea

    Författare :Vasiliki Koutsouveli; Paco Cárdenas; Anders Backlund; Ana Riesgo; Cassandra G. Extavour; Uppsala universitet; []
    Nyckelord :Porifera; Demospongiae; Geodia spp.; Phakellia ventilabrum; reproduction; gametogenesis; Antarctica; deep sea; sponge grounds; histology; molecular machinery; electron microscopy; RNA-seq; proteomics; lipidomics; Farmakognosi; Pharmacognosy;

    Sammanfattning : Very little is known about the ecophysiological aspects of Porifera (sponges) from Antarctica and North Atlantic, even though they are keystone components of these habitats. Being the earliest diverging metazoan lineage, sponges also play a fundamental role in our understanding of animal evolution. LÄS MER