Focus On Islands: Biodiversity and Preventing Extinctions

As the world faces an extinction crisis, islands offer hope for stemming the decline of global biodiversity and saving Endangered animals.

Although all the islands in the world make up only 5.3% of the Earth’s landmass, they are home to a wide array of different species making them hotspots of biodiversity. In addition to a plethora of wildlife, historically islands have been the leading site of animal extinctions.

One of the leading threats that island animals face is predation and competition by introduced, invasive mammals with 86% of extinctions on islands being linked to invasive species. Luckily, these epicenters of extinction are ideal for conducting conservation and restoration activities. The isolated nature of islands means that permanently removing invasive species is possible and research has shown that it is a highly effective conservation tool.

island conservation preventing extinction invasive species islands map land mass biodiversity hotspots
Islands host a disproportionate amount of global biodiversity relative to their overall size.

Anacapa Island

Today, the cliffs of Anacapa Island, located off the coast of California serve as prime nesting habitat for a variety of native and some highly threatened seabird species. Twenty years ago, this seabird haven was overrun by invasive rats which predated the seabird eggs and chicks, threatening global populations of the Scripps’s Murrelet.

Following the removal of invasive rats, Anacapa has thrived and so have the seabirds. Hatching success among the Murrelets is greater than 90%, compared to less than 20% when rats occupied the island. Cassin’s Auklets have also re-colonized the island. In 2011, Endangered Ashy Storm-petrels established nesting sites on the island for the first time ever. Securing nesting habitat for the Scripps’s Murrelet and the resulting population growth was enabled the species to avoid being listed as Endangered. While the Ashy Storm-petrel remains threatened by invasive species across much of its habitat, there is still hope for its recovery.

Invasive species are a leading threat to island species, connected to 86% of island extinctions over the past 500 years.

Focus on Islands

Stories like the recovery of Anacapa are abundant and serve as prime examples of the lasting impact invasive species removal can have on islands, but research also reveals the importance of restoring islands. Islands host 20% of global biodiversity and are home to 41% of the world’s Critically Endangered and Endangered vertebrates. Many of these species and island ecosystems are threatened by the presence of invasive species, but using scientifically proven techniques, it is possible to prevent extinctions and bolster global biodiversity.

Research published in 2019 indicates that nearly 10% of island extinctions can be prevented by restoring 169 islands. The 50 authors with more than 804 combined years of experience in conservation science determined it is feasible to begin to restore all these islands in the next 10 years. The eight highest priority islands will benefit 24 populations of 23 highly threatened species. As the world faces an extinction crisis, islands offer hope for stemming the decline of global biodiversity and saving Endangered animals.

Featured photo: Caterpillar hanging from a tree branch on Mona Island, one of the eight highest-priority island. Credit: Tommy Hall

About Emily Heber

Emily is a recent graduate from UC Santa Barbara with a BS in Zoology. As a student, she discovered that she had a passion for the conservation of endangered species and their ecosystems. Her background in informal education has allowed her the opportunity to share her passion for animals with others, something she seeks to continue doing while working with the communication team. In her spare time, Emily enjoys exploring the amazing hiking trails found in Santa Cruz and tries to SCUBA dive whenever possible. Emily is excited to join the Island Conservation team and to help share the amazing work that is being done here.

View All Posts

Follow Island Conservation on Social Media

[ism-social-followers list='fb,tw,li,youtube,instagram' template='ism_template_sf_1' list_align='horizontal' display_counts='false' display_full_name='true' box_align='center' ]

[ism-social-followers list='fb,tw,li,youtube,instagram' template='ism_template_sf_1' list_align='horizontal' display_counts='false' display_full_name='true' box_align='center' ]

Midway Atoll conservation




%d bloggers like this:
Send this to a friend

probiotics weight loss pills weight loss drug crossword ip weight loss pills eca weight loss pills lida weight loss pills review fastin weight loss pills reviews dandelion weight loss pills digestive enzyme supplements weight loss ginger diet weight loss army diet plan for weight loss diet for weight loss female green tea diet plan lose weight fast tomato juice diet weight loss stanford weight loss pills best caffeine free weight loss supplement bliss weight loss pills showing up on drug screen keto diet best recipes weight loss pills that actually workcontrqve diet doctor recipes keto chicken casserole safe weight loss pills by fda best liquid diet to lose weight green tea weight loss pills canada does diet green tea help lose weight weight loss diet high in fiber how to lose weight quickly with water diet pcos diet plan for fast weight loss best weight loss pill otc extreme weight loss pills for obese fast weight loss detox diet plan weight loss pills that start with c quick weight loss diets to do youtself diet and yoga weight loss apetamin pills weight loss does medicare pay for weight loss pills are any weight loss drugs safe diet chart for weight loss post pregnancy be weight loss pills weight loss pills for your stomach nip tuck weight loss pills healthy weight loss supplement testosterone pills to boost weight loss no weight loss even with diet and exercise most popular weight loss diet pills is the keto diet for weight loss nj diet weight loss reviews a f plus weight loss pill weight loss high pro diet one xs weight loss pills x strength reviews liquid diet before and after weight loss diet doctor weight loss clinics diet chart fof weight loss indian tasty diet recipes for weight loss keto diet when do you see weight loss best non stimulant weight loss pill

best penis enlargement pills who prescribes ed pills black rhino pills what is extenze plus male enhancement enzyte 247 male enhancement hey you guys want penis enlargement pills mojo rising male enhancement hair restore pills male enhancement for 60 year olds best ed pills australia fusion male enhancement pill what are good male enhancement pills big bang male enhancement reviews male enhancement formula cream trump penis enlargement male libido enhancement products toothpaste for penis enlargement chinese sex pills for men in little box l arginine male enhancement dosage it penis enlargment pills best pills for penis growth natural male enhancement pills near me which pill is better viagra or cialis sexual enhancement v9 roman ed pills cost natural ways to enlarge my penis will nitric oxide supplements help ed what color is viagra pills job male enhancement sales blue chew pill black storm pills side effects can i sell sex enhancement pills on ebay best curl enhancer for male hair trying to identify a pill penis enlarger technique natural sex pills exot penis enlargement surgery in cy price penis enlarger tools mens sex pills sold in liquor stores male strength enhancement protease inhibitor tablet natural enlargement pills viagra price in mercury drugstore jimmy neutron sex pills comic top rated tablets 2020 purple pill vs red pill bonneton male enhancement pills canadian prescription male enhancement pills which is the best male enhancement pills red pill extenze how to get ed pills without prescription penis enlargemtn male enhancement pills affiliate program sex pills otc bluelight

full spectrum cbd can you use cbd oil on an open wound cbd biocare world health organization cbd report pure kana cbd oil marriott brisbane cbd cbd american shaman review cbd oil amzon syd cbd hotels honest cbd oil select cbd muscle rub cbd oil for occipital neuralgia cbd and ra cbd plantar fasciitis what is cbd drip how to use cbd oil for migraines cbd oil for diverticulitis trader joes cbd oil cbd oil leafly cbd gold drops pure ratios cbd topical salve cbd oil for my 11 year old best cbd oil near me chong cbd cbd oil in oregon q sciences cbd oil cbd dab rig cbd oil for beginners cbd weight loss testimonials cbd oil from hemp cbd turmeric and ginger tea meta gen cannabis oil cbd fusion brands cbd oil slidell cbd and kratom chicago select cbd oil cbd for borderline personality disorder special sauce cbd flower cbd oil madera ca holistic hound cbd treats cbd usa expo cbd supplement cbd oil nc legal cbd oil without thc for anxiety nuleaf cbd oil amazon how to use cbd oil for psoriasis mjna cbd oil cbd dependence cbd oil dosage for celiac cbd washington post list cbd oil natural buy cbd tincture nyc where to get cbd oil how many puffs of cbd