Protecting Species through Legislation: The Case of Sea Turtles
研究评估了佛罗里达州海滩照明法规对海龟筑巢活动的影响，发现现行法规使筑巢量增加34%，并能延缓物种灭绝，而人工养殖成本过高。
We evaluate the effectiveness of legislation in reducing the negative impacts of beachfront lighting on sea turtle nesting activity, one of the main threats to the species. To this end we construct a time varying index of ordinance effectiveness across Florida counties and combine this with loggerhead nesting data to create a panel data set covering a twenty‐six year period. Our econometric findings show that such legislation can significantly increase nesting activity, where current levels of protection result in an additional 34%. Using our estimates within a calibrated population model we also demonstrate that legislation can reduce the time to the animals’ extinction. Finally, when considering estimates of local willingness to pay for sea turtle preservation, we show that alternatively raising sea turtles in captivity under a head start program may be prohibitively expensive.