Search for dissertations about: "aposematic"

Showing result 1 - 5 of 8 swedish dissertations containing the word aposematic.

  2. 1. Seasonal change in defensive coloration in a shieldbug

    Author : Aleksandra I. Johansen; Gabriella Gamberale-Stille; Birgitta S. Tullberg; Graeme Ruxton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Shield bug; colour change; protective coloration; cryptic; aposematic; behavioural change; etologi; Ethology;

    Abstract : Protective coloration such as aposematism and crypsis occurs in many insects but only a few species alter their defensive strategy during the same instar. We hypothesize the adult shield bug Graphosoma lineatum with an alternating black and non-melanised longitudinal striation exhibit such a change in defensive coloration. READ MORE

  4. 2. On the evolution and function of aposematic coloration

    Author : Gabriella Gamberale-Stille; James Mallet; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoologi; Zoology;

    Abstract : .... READ MORE

  5. 3. Why are there so many striped aposematic prey? - No evidence for increased signal efficiency

    Author : Marianne Aronsson; Stockholms universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 4. Behavioural ecology and population dynamics of an aposematic seed bug, Lygaeus equestris L. (Heteroptera, Lygaeidae)

    Author : Birgitta Sillén-Tullberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  7. 5. Colour patterns in warning displays

    Author : Marianne Aronsson; Gabriella Gamberale-Stille; Olof Leimar; Candy Rowe; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; aposematism; warning colouration; colour patterns; avoidance learning; generalization behaviour; signal design; signal evolution; conspicuousness; mimicry; etologi; Ethology;

    Abstract : In aposematism a prey species use bright colours, often combined with a black contrasting pattern, to signal unprofitability as prey to potential predators. Although there are several different hypotheses about the presence of these internally contrasting patterns, there is little experimental evidence of any beneficial effects. READ MORE