Insights from longitudinal patterns of local extinction and colonization
in giant pandas
Abstract
With the Sixth Mass Extinction becoming an increasingly intractable
juggernaut, it is vital to understand the patterns and drivers of local
extinction and colonization events of at-risk species under global
change. Here, we examine whether observed local colonization and
extinctions of giant pandas (Ailuropoda melanoleuca) during three time
periods (1985-1988, 1998-2002, 2011-2014) are correlated with protected
area status, local rarity and abiotic factors (i.e., climate and
land-use variables). We observed a decreased rate of local extinction
and a relatively stable rate of local colonization through time, and
fount that (i) local extinctions were more likely and local colonization
less likely in areas with high local rarity, harsh abiotic (e.g., low
proportion of forest cover) and unprotected area status, and (ii) the
relative importance of these factors changed over time. These findings
provide insights into the factors governing panda recovery and showcase
how conservation action can reverse fortunes and facilitate species
recovery.