The Catalina Island Conservancy is a nonprofit organization established to protect and restore Santa Catalina Island, California, United States. The Conservancy was established in 1972 through the efforts of the Wrigley and Offield families. The Conservancy was created when both families deeded 42,135 acres (170.51 km2) of the island over to the organization—88% of the Island.
Founded in 1972, the Conservancy is one of the oldest private land trusts in Southern California. [1] The stated goal of the Conservancy is to "be a responsible steward of our lands through a balance of conservation, education and recreation." [1]
In April 2019, the Conservancy opened a new base of operations, the Trailhead, at 708 Crescent Ave. in the city of Avalon on Catalina Island. [2] It is the first LEED Gold certified building in Avalon. In addition to providing information about recreation opportunities on the Island, hiking and biking permits, and serving as the launch point for Conservancy Eco Tours and Wildlands Express shuttles, the Trailhead has educational exhibits and a shop. The second floor of the Trailhead features a plein air exhibit and a restaurant. The third floor includes a native plant garden featuring several Catalina native or endemic species.
Established to protect and restore Catalina, the Conservancy seeks a balance between conservation and public interest. Catalina's native plant community is central to the ecosystem of the island, providing habitats that offer shelter and food to the island's endemic and native animals like the Catalina Island fox, Catalina quail, and bald eagles among many other species. But years of importing non-native plants to feed grazing animals and landscape homes, has introduced to Catalina more than 76 highly invasive plant species.
Due to so many efforts in the past to capitalize on the island, many invasive flora and fauna were introduced. The Conservancy removes invasive plants to protect and restore the island. The Conservancy's Catalina Habitat Improvement and Restoration Program (CHIRP) is designed to ensure long-term conservation of species richness and habitat integrity in one of the world's biodiversity hot spots. Three species of highly invasive plants have been nearly eradicated from the island: tamarisk, pampas grass and fig. CHIRP has targeted 27 other species for eradication and another 36 to be managed to limit their presence on the Island. [3]
By eliminating and managing invasive plant species, the CHIRP program has encouraged native species to grow and flourish. [4] It contributed to the discovery of new species and the rediscovery of species following years of fear that they were extinct. Among those rediscovered are Catalina grass and Lyon's pygmy daisy, which had previously not been seen for 80 years. The James P. Ackerman Native Plant Nursery at Middle Ranch provides plant and seed material for re-vegetation of the island.
The Conservancy also operates the Stop the Spread program, a partnership between the Conservancy's naturalists, CHIRP staff and the many youth camps on the island. [5] The program is focused on invasive plant control in and around each camp. Campers are taught about the value of native species, the problems posed by invasive species and how to help eradicate invasive species. Campers also learn how to restore and improve native environments. Stop the Spread has given nearly 15,000 campers tens of thousands of hours of education from 2009 to 2013. Campers manage about 450 acres for 75 different invasive species, logging more than 7,000 hours of invasive plant removal a year.
The Catalina Island fox is found on Catalina Island and nowhere else in the world. An adult fox weighs 4 to 6 pounds (1.8 to 2.7 kg) and is about 25% smaller than its mainland ancestor, the gray fox. Its diet includes mice, lizards, birds, berries, insects, and cactus fruit. It is Catalina's largest terrestrial predator. [6]
In late 1999, an outbreak of distemper virus caused the fox population to plummet from about 1,300 to just 100 animals. In 2000, the Catalina Island Conservancy and its partner, the Institute for Wildlife Studies, implemented the Catalina Island Fox Recovery Plan. The plan combined relocation, vaccinations, captive breeding and release, and wild fox population monitoring. [7]
Due to this outbreak The US Fish and Wildlife Service declared the Catalina Island fox an endangered sub-species in 2004. After 15 years of work by wildlife biologists, the Conservancy announced that the Catalina Island adult fox population had rebounded to pre-crash numbers. [8] The Conservancy's biologists counted 1,850 foxes on the island, 350 more than the year before, in one of the fastest recoveries ever of an endangered species. [9]
The Conservancy has worked with the Institute for Wildlife Studies in a successful program that brought bald eagles back to Catalina and the other Channel Islands after DDT contamination decimated their numbers.[ citation needed ]
The Conservancy is also actively managing a herd of bison on the island with a novel contraceptive program that is attracting the attention of wild animal managers on the mainland. [10] The bison were first brought to the island in 1924 for a movie. [11] Over the years, they became an iconic symbol of the island's culture. But with no natural predators, the herd grew to as many as 500. The Conservancy had previously conducted studies that found the island could support only about 150 to 200 bison. To control the herd's size, the Conservancy had been periodically conducting roundups and shipping bison to the mainland.
Shipping the bison to the mainland was costly, and it raised concerns about the stress on the animals during shipment and the expansion of the herd beyond ecologically sustainable numbers between shipments. Beginning in 2009, the Conservancy's scientists injected the female bison with porcine zona pellucida (PZP), a contraceptive that had been used for fertility control in zoos, wild horses and white tail deer. [12] In addition to substantially reducing the number of new calves, the PZP had no apparent effect on pregnant females or their offspring. A peer-reviewed study published in 2013 reported that the contraceptive program was effective in controlling the herd. [13] Previously, more than two-thirds of the cows delivered calves every year. After receiving the contraceptive, the calving rate dropped to 10.4% Archived 2014-05-21 at the Wayback Machine in the first year and 3.3% Archived 2014-05-21 at the Wayback Machine the following year.
The Conservancy's scientists, and their collaborators at California State University, Fullerton, continue to study PZP to determine if the female bison can regain their fertility [14] after a period of time without the contraceptive. They are also evaluating the timing of ovulation in response to PZP application. After several years without bison births on the island, Catalina Island Conservancy had plans to bring two pregnant bison to Catalina at the end of 2020. [15]
The deer are an invasive species, and they have a significant impact on native plants due to over-grazing. In 2023, the Conservancy created a plan to reduce the impact that invasive deer have on native vegetation. After consulting with wildlife experts, capturing and sterilization were eliminated as options, and a culling (killing from helicopters) approach was adopted. Some residents of Santa Catalina Island were opposed to the cull, and asked the Conservancy to reconsider. [16]
Each year, more than 100,000 children and adults learn about the uniqueness of Catalina's Mediterranean ecosystem and what they can do to improve the planet through the Conservancy's educational programs and a wide variety of youth camps the Conservancy hosts on its lands. Among the educational programs it offers are:
The Nature Centers at the Airport in the Sky and Avalon Canyon showcase the island's natural history and the Conservancy's restoration accomplishments. The Conservancy operates the airport as well, which is located about 10 miles from Avalon. It also operates the Explore Store in its headquarters at Conservancy House, 125 Clarissa Ave., Avalon.
The nature centers' exhibits focus on the island's natural history, including its animals, plants, geology and marine life, and the conservation efforts led by the Conservancy. The Wrigley Memorial & Botanic Garden offers visitors a living exhibition of the plant life on the island. The Conservancy cares for such endemics as the Catalina liveforever, Catalina manzanita and Catalina Island bedstraw at its Ackerman Native Plant Nursery at Middle Ranch in the island's center.
The Conservancy offers several other publications and productions for the public, including the biannual Conservancy Times magazine; monthly Conservancy News e-newsletter and an Annual Report.
The Catalina Island Conservancy offers 50 miles of biking trails and nearly 150 miles of hiking opportunities within its road and trails system, [17] including the Trans-Catalina Trail, which stretches 38.5 miles from the Catalina Island Conservancy's visitors' center, the Trailhead in Avalon on the East End, to Parson's Landing on the West End. It then loops back to Two Harbors. [18] Other recreational offerings include: [19]
The Conservancy operates annual events including the Conservancy Ball and Catalina: The Wild Side Art Show & Sale.
The Catalina Island Conservancy operates out of offices in Avalon and Middle Ranch on the island and in Long Beach, California, on the mainland. It has a staff of 75 and is aided by a donor base and a volunteer force that contributes 25,000 man-hours per year.
The Channel Islands are an eight-island archipelago located within the Southern California Bight in the Pacific Ocean, off the coast of California. They define the Santa Barbara Channel between the islands and the California mainland. The four Northern Channel Islands are part of the Transverse Ranges geologic province, and the four Southern Channel Islands are part of the Peninsular Ranges province. Five of the islands are within the Channel Islands National Park. The waters surrounding these islands make up Channel Islands National Marine Sanctuary. The Nature Conservancy was instrumental in establishing the Channel Islands National Marine Sanctuary.
The island fox is a small fox species that is endemic to six of the eight Channel Islands of California. There are six subspecies, each unique to the island it lives on, reflecting its evolutionary history. They are generally docile, show little fear of humans, and are easily tamed. Island foxes played an important role in the spiritual lives of native Channel Islanders. They have been likely semi-domesticated as pets, used as pelts, or for other functions, like pest control.
The Rocky Mountain Arsenal National Wildlife Refuge is a 15,988-acre (24.981 sq mi) National Wildlife Refuge located adjacent to Denver and Commerce City, Colorado, in the United States. It is approximately 8 miles (13 km) northeast of downtown Denver. The refuge is on the grounds of the former Rocky Mountain Arsenal, a United States Army chemical weapons manufacturing facility. The site was designated a national wildlife refuge in 1992 by the United States Congress, and underwent a costly environmental cleanup in order to remove pollutants. The refuge is managed by the United States Fish and Wildlife Service. More than 330 species of wildlife inhabit the refuge, including raptors, deer, raccoons, coyotes, white pelicans, black-footed ferrets, black-tailed prairie dogs, and bison.
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups, such as New Zealand and Hawaii, have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.
The Galápagos Islands are located off the west coast of South America straddling the equator. The Galápagos are located at the confluence of several currents including the cold Humboldt Current traveling north from South America and the Panama Current traveling south from Central America make the islands cooler and provide the perfect environment for the unique mix of wildlife that inhabits the islands.
Western Shield, managed by Western Australia's Department of Parks and Wildlife, is a nature conservation program safeguarding Western Australia's animals and protecting them from extinction. The program was set up in 1996 and as of 2009 was the largest and most successful wildlife conservation program ever undertaken in Australia.
The fauna of the United States of America is all the animals living in the Continental United States and its surrounding seas and islands, the Hawaiian Archipelago, Alaska in the Arctic, and several island-territories in the Pacific and in the Caribbean. The U.S. has many endemic species found nowhere else on Earth. With most of the North American continent, the U.S. lies in the Nearctic, Neotropic, and Oceanic faunistic realms, and shares a great deal of its flora and fauna with the rest of the American supercontinent.
The San Clemente Island goat is a type of domestic goat derived from feral goats isolated on San Clemente Island, one of the Channel Islands of California.
The Banker horse is a breed of semi-feral or feral horse living on barrier islands in North Carolina's Outer Banks. It is small, hardy, and has a docile temperament, and is genetically related to the Carolina Marsh Tacky of South Carolina and Florida Cracker Horse breeds through their shared Colonial Spanish horse and Iberian horse descent. The current population of wild Banker horses is estimated to be about 400.
The feral goat is the domestic goat when it has become established in the wild. Feral goats occur in many parts of the world.
Santa Catalina Island is a rocky island, part of the Channel Islands, off the coast of Southern California in the Gulf of Santa Catalina. The island covers an area of about 75 square miles. It features a diverse and rugged landscape, including rolling hills, canyons, coastal cliffs, and sandy beaches. The island's highest peak is Mount Orizaba, rising to an elevation of 2,097 feet. The island is 22 mi (35 km) long and 8 mi (13 km) across at its largest width. The island is situated in the Pacific Ocean, approximately 29 mi (47 km) south-southwest of Long Beach, California. Politically, Catalina Island is part of Los Angeles County in District 4. Most of the island's land is unincorporated and is thus governed by the county.
The Catalina Island bison herd is a small group of introduced American bison living on Catalina Island off the coast of Southern California. In 1924, several bison were acquired for a film shoot and, before the end of 1925, brought to Catalina. The bison are now quite popular with the tourists. Some buildings have been painted with images of bison and decorated with bison weather vanes. Over the decades, the bison herd numbered as many as 600. The population currently numbers approximately 100.
Red foxes pose a serious conservation problem in Australia. 2012 estimates indicate that there are more than 7.2 million red foxes, with a range extending throughout most of the continental mainland. The species became established in Australia through successive introductions, by settlers, beginning around the 1830s. Due to its rapid spread and ecological impact, it has been classified as one of the most damaging invasive species in Australia.
The Niobrara Valley Preserve is a 56,000 acre conservation area in Brown and Keya Paha counties of Nebraska owned by The Nature Conservancy.
American Prairie is a prairie-based nature reserve in Central Montana, United States, on a shortgrass prairie ecosystem with migration corridors and native wildlife. This wildlife conservation area is being developed as a private project of the American Prairie Foundation (APF), a non-profit organization. The reserve covers 462,803 acres (187,290 ha). The organization hopes to expand it greatly through a combination of both private and public lands.
Feral cats are an invasive species in Australia. Because they are not native to Australia and were only introduced by European colonists as pets in the early 1800s, native Australian animals did not co-evolve with them. As of 2016, some 3.8 million domestic cats and up to 6.3 million feral cats continue to live in Australia.
The Trexler Nature Preserve is an 1,108-acre county park (448 ha) owned and maintained by Lehigh County in the Lehigh Valley region of Pennsylvania. The preserve is situated in Lowhill Township and North Whitehall Township and the land that comprises the preserve was originally purchased between 1901 and 1911 by local industrialist General Harry Clay Trexler.
The wildlife of the Channel Islands of California is wide and diverse, including many endemic species. While the land wildlife is slightly limited, there being only one large, naturally predatory, and native mammal, the small island fox, marine life can include anything from kelp forests to great white sharks.
Florida hosts many types of fauna. From coral reefs of the Florida Keys to the cypress swamps of the Panhandle, the state's diverse habitats are home to a variety of wildlife. Florida is among the top five states in terms of endemic species. There are over 700 terrestrial animals, 200 freshwater fish species, 1,000 marine fish and thousands of terrestrial insects and other invertebrates that inhabit the state. Florida's peninsular geography spans from subtropical to tropical zones, which, combined with its distinctive geology and climate, contribute to habitat diversity and an array of species. The native wildlife that exists in the state are of temperate and tropical origin.
In biology, overabundant species refers to an excessive number of individuals and occurs when the normal population density has been exceeded. Increase in animal populations is influenced by a variety of factors, some of which include habitat destruction or augmentation by human activity, the introduction of invasive species and the reintroduction of threatened species to protected reserves.