Ecological parameter:  resistance form

Parameter group: life parameters

Resistance form describes the physiological mechanism of an organism in response to regular periods of adverse environmental conditions.

Classification system: 10 point assignment system

Category nameAbbreviationExplanation
eggs, statoblastseggegg= laid by female (ovipare); statoblast= resistant reproductive body produced asexually
cocoonscoccasing spun of silk
housings against desiccationhousome Trichoptera species are closing up its case in case of desiccation, e.g. Ptilocolepus granulatus granulatus
diapause or dormancydidperiod of rest or quiescence between phases of growth or reproduction
quiescencequiarrest in the development of heterothermic (lacking a body temperature regulation system) animals, which is directly influenced by ambient temperature and hygrometry
nonenonno specifivc resistance form
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Ephemeroptera30 / 344 - 8.7%
Plecoptera22 / 571 - 3.8%
Trichoptera29 / 1428 - 2%