An argument in favor of turtles as an important part of the ecological system

sea turtles and humans

Learn more… Beach Erosion One way to address beach erosion is through beach nourishment. Exclosures were maintained for days in habitats that varied in the risk turtles face from tiger sharks Heithaus et al.

The most serious threat caused by increased human presence on the beach is the disturbance to nesting females. United Nations Environment Programme. However, it is increasingly accepted that environmental management practices, and the environmental valuation that necessarily precedes this, cannot be imported wholesale from the developed to the developing world Turnbull This man-made, coastal development results in artificial lighting on the beach that discourages female sea turtles from nesting.

Read on and see what you think. Deaths in gill nets are particularly hard to quantify because these nets are set by uncounted numbers of local fishermen in tropical waters around the world.

How do land turtles help the environment

If sea turtles become extinct, both the marine and beach ecosystems will weaken. Because sea turtles undergo long migrations , they help to transport these species. Hopper dredges have been directly responsible for the incidental capture and death of hundreds, if not thousands, of sea turtles in the US. Photo by Wilma Katz Sea turtle nesting beaches everywhere have been substantially altered by urbanization and development. Lynam et. At the extreme end of high turtle densities—typified by isolated islands like Bermuda and Derawan—turtles appear to be capable of destroying seagrass meadows by overgrazing Fourqurean et al. Many countries forbid the taking of eggs, but enforcement is lax, poaching is rampant, and the eggs can often be found for sale in local markets. Many probably went extinct because of sudden geological or climatic changes — possibly because of a large volcanic eruption or because of a giant meteor hitting the earth. Like normal lawn grass, sea grass needs to be constantly cut short to be healthy and help it grow across the sea floor rather than just getting longer grass blades. We might just be saving ourselves too. As a result, thousands of sea turtles accidentally swallow these plastics, mistaking them for food. Ninan, K. Dolman, A. Eggshells and unhatched eggs left behind provide important nutrients that nourish dune vegetation such as beach grasses, which stabilize dunes and help to prevent coastal erosion. If a keystone species is removed from a habitat, the natural order can be disrupted, which impacts other wildlife and fauna in different ways.

Planning your next meal: leatherback travel routes and ocean fronts. Once values are estimated, it is necessary to map the distribution of the ecosystem benefits and the beneficiaries of biodiversity changes — who wins and who loses?

Thirdly, we need to estimate the monetary values of these services in order to better argue their conservation.

why are sea turtles endangered

When at the sea surface to breathe or rest, sea turtles also sometimes provide a resting spot for seabirds to land on - sort of like a reptilian aircraft carrier!

Once again, all parts of an ecosystem are important, if you lose one, the rest will eventually follow. Conclusions 19In the conservation effort of marine turtles in the LAC, three things become clear.

sea turtle poaching
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» Information About Sea Turtles: Threats to Sea Turtles