Overexploitation from the 1930s to the 1960s led to a severe decline in the abundance of this species. In the USA, the population is recovering and now inhabits most of their remaining habitat in southern Florida over a larger area than in 1978 when it was protected (Mazzotti et al. 2007). In the other countries in its range, protection has resulted in some recovery, but overall numbers are still depleted in some countries such as Colombia and Ecuador, but substantial recovery has taken place in other areas including Cuba, Costa, Mexico and Venezuela (Thorbjarnarson et al. 2006).
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