Home » Why are frigatebirds important?

Why are frigatebirds important? Like all wildlife, the answer lies in their ability to move. Thousands of generations of birds have developed a bond with their environment, transferring and concentrating nutrients in different parts of the tropics. This helps build ecosystem structures that house a myriad of other ocean creatures that aren’t as mobile (including us). Wherever you find a concentration of frigatebirds, you find some of the richest fisheries and human settlements.

Why are frigatebirds important? Wherever there are concentrations of birds, you find some of the richest fisheries and human settlements.
On the island of Nauru in the South Pacific there is an ancestral tradition of catching, taming then releasing wild frigatebirds called ‘Ibbon Itsi’. Because of their large size, other birds follow them as an indicator of where there’s food. Undoubtedly, this will have attracted other breeding seabirds, which were a source of sustenance for islanders. It’s only quite recently though, that scientists have been able to demonstrate the enormous impact of seabird colonies on fish abundance. Healthy seabird breeding islands have more fish. The status of villages on Nauru was indicated by their frigatebird numbers and catching them was a coming-of-age ritual for young men. This link between wildlife and healthy ecosystems was entrained in thousands of years of culture. Drawing, Simon Mustoe

Evidence for the importance of frigatebirds

A relationship with wildlife was customary knowledge for many indigenous groups all over the world. But after European settlement, most of these traditional practices were lost. It’s only in recent years that scientists have begun to ‘discover’ this for themselves. However, animal-driven nutrient systems are often so subtle, they remain undiscovered or can’t be measured at all.

In the absence of this modern evidence, we tend to overlook the significance of animals.

Conservation of wildlife therefore, underestimates the critical benefit animals bring in restoring and maintaining ecosystem diversity, structure and function. Rat free islands can have fifty per cent greater biomass of fish because reefs are fed by seabird guano and seabirds are integral to the transport of nutrients between ocean and land.

Animals don’t have to be that numerous to have a huge effect either.

Frigatebirds can travel much further than humans and their impact covers whole ocean basins. We only evolved to fit in, after seabirds had set up the conditions for our prosperity. This is why we face a very uncertain future if we continue to treat animals as competitors, persecute them, or inadvertently kill them with our industry and agriculture.


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