Gibraltar is also home to many migratory birds at various times of the year. The richest area of natural resources on Gibraltar is its harbor on Gibraltar Bay, home to many dolphins and whales, as well as a tuna industry. There is one small nature reserve near the border with Spain, as well as one botanic garden. Major Environmental and Conservation Issues Gibraltar doesn't have environmental issues, really. Its primary effort is to preserve what it already has.
Marine preservation is definitely the most important environmental issue.
Much more study and research are being done as we speak. Birds NA, but do check out this site on birds of Gibraltar . Fish NA Invertebrates NA Plants NA, but for a complete list of plants on Gibraltar , check this site out. Some species have been introduced to Gibraltar, a few of which may threaten native species. The site also briefly summarizes other projects involved.