User:Manudouz/sandbox/Seasonal dimorphism

Seasonal dimorphism
 * is the condition of having two distinct varieties which appear at different seasons (zoology).

In plants
Seasonal dimorphism is proposed to be an adaptive strategy to the long-lasting, warm, and arid summer of Mediterranean regions.


 * Phlomis fruticosa.
 * Cistus incanus L. subsp. incanus. It shows occurence of seasonal dimorphism in the wood anatomy: "Finally, peculiar anatomy of brachyblast and dolichoblast wood results in the formation of so-called false rings. Hence, wood rings in C. incanus should be considered to be 'seasonal' rather than 'annual'.".
 * "A pattern of seasonal variation in leaf size and position relative to the stem is reported for twelve mesophyllous shrubs in the coastal sage scrub of Mediterranean-climate areas of southern California."

Butterflies

 * Precis octavia
 * Nemoria arizonaria

Others

 * Xxxx


 * Birds: "Many warblers, again mainly in the Dendroica genus, also show seasonal dimorphism. This is mainly in the form of males acquiring a bright plumage for the breeding season and then moulting into a more female-like plumage for the winter."