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Graeme Crawley - Coggle Diagram
Graeme Crawley
Small population paradigm
catastrophe
demographic stochasticity
metapopulations
rescue effect - immigration from neighbouring patches can rescue declining sub-population from random extinction
Minimum viable population
effective population size
population viability analysis
environmental stochasticity
genetic stochasticity
heterozygosity
inbreeding
doesn't always lead to inbreeding depression
can sometime cause enhanced fitness - interbreeding exposes deleterous recessives = purged from gene pool
captive breeding programmes
southern white rhino
1st. Estimate probability of various events occurring & probabilities of consequences of several of those events
2nd. Analyse probabilities using probability theory
Manage as one population or as two separate populations SLOSS
Declining population paradigm
Empriricism
Detect, diagnose, halt
suggests external changes
recovery operations without full understanding
often a combination of both OR decline first then small