Case Study #2

mark-recapture estimates age-specific survival and detectability without the

need to catch every animal

Mark-recapture allows for ability to compute

elasticity/sensitivity to see which vital rates most change lambda

What life stage has the highest mortality in crocs?

Hatchling

Survival of crocs increases with

age/size

What life stage of croc has the highest survival?

Adult

Selection on the crocs favors improvements in what rather than modest boosts the fecundity?

Survival past the early bottleneck

Just boosting the nest survival alone has a (low/high) return on investment unless paired with what?

low
post-hatch protection

The american crocs show a type ___ survivorship curve

Type 1 and Type 3

Limited reliable estimates of age-based survivorship & reproduction to inform population growth models led to a ______ _____ the authors sought to fill

knowledge gap

Which life stage would have the greatest impact on population growth?

Adult

Adult life stage had the highest _______

summed elasticities

____ and _____ rates in adults have the greatest impact on population growth

survival
Fecundity