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SFR 407

QuestionAnswer
r selection Many small offspring, rapid growth, small sized, wind dispersed, long dispersal distance, early reproduction, short-lived, disturbed environments
K selection Large, few seeds, slow growth, large sized, animal dispersed, short dispersal distance, late reproduction, long-lived, more stable environments
Is aspen r or K selected? r selected
Is black walnut r or k selected? K selected
Non-dormant seed bank Germinate soon after dispersal, seeds have limited viability
Dormant seed bank Do not germinate even when substrate is favorable, long term viability, may need stimuli to germinate
Dormancy strategies Scarification, temperature, chemical, fire
Canopy gaps are ______ during the day and ______ at night hotter, colder
Seed germination is inhibited by ___-___ light far-red
Allelopathy Species produce a chemical that inhibits the germination and growth (and thus survival) of other species.
Example of allelopathic species Juglans nigra, Ailanthus altissima
Created by: fraxinus
Popular Ecology sets

 

 



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