Corridor Examples
Wildlife Crossings
Banff National Park
Since 1996 over 40 wildlife crossing structures and over 80 km of wildlife fencing have been built to connect and protect populations of grizzly bear, wolverines, elk, and others over the Trans-Canada Highway in Banff National Park.
Wallis Annenberg Wildlife Crossing
Currently under construction, the world’s largest highway overpass will span over 10 lanes of traffic in Southern California to re-establish connectivity for several native species including mountain lions.
Christmas Island National Park
The annual migration of millions of crabs on Christmas Island is helped by more than 20 km of barriers, 31 crab underpasses, and a 5m-high crab bridge crossing at one of the area’s busiest roads.
Eco-Link@BKE
A 75m overpass spans the Bukit Timah Expressway (BKE) in Singapore and reconnects the Bukit Timah Nature Reserve and Central Catchment Nature Reserve, which support wildlife such as the common palm civet and the critically endangered Sunda pangolin.
Hardberger Park Land Bridge
The land bridge at Phil Hardberger Park in San Antonio, Texas is one of the largest wildlife crossings in the U.S. and supports pathways for both people and animals to move through a protected area park.
Natuurbrug Zanderij Crailo
The longest overpass in the Netherlands is over 800 km long and spans a railway line, business park, river, roadway, and sports complex, connecting part of larger protected area that consists of 1,000 square kilometers of forest and other natural habitats.
NH44 Tiger Underpasses
A series of underpasses under National Highway 44 allows tigers and other wildlife to move through Pench National Park, part of a large tiger corridor in central India.
U.S. Highway 93 North
Reconstruction projects along Highway 93 in Montana include over 80 crossing structures and several miles of wildlife fencing to prevent wildlife-vehicle collisions and connect populations of black bears, elk, and more.
Need help in planning or designing wildlife crossings in your region? View our Technical Guides to find detailed advice and guidance on where to start and how to finish.
Corridor Experiments
Biological Dynamics of Forest Fragments Project (BDFFP)
The largest and longest-running study on habitat fragmentation was created in the late 1970s in central Brazil, and has been maintained for over three decades to test the role of forest fragmentation on populations, communities, and ecosystems.
Terrestrial Metatron
A controlled experiment in France consists of 48 enclosed and connected habitat patches that can be used to test theories in spatial ecology, including the role of habitat fragmentation and corridors.
Savannah River Site Corridor Experiment
At Savannah River Site in South Carolina, experimental patches were cut into a managed forest two decades ago to test the effects of corridors on plant and animal dispersal, population persistence, and biodiversity.
Stability of Altered Forest Ecosystems (SAFE)
Located in the rainforests of Malaysian Borneo, one of the world’s largest ecological experiments tests ecosystem responses to habitat fragmentation.
Aquatic Metatron
A controlled experiment in France consists of 144 enclosed and connected tanks that can be used to study the effects of climate change and habitat fragmentation on the functioning of aquatic ecosystems.
Natural Corridors
Migratory Flyways
Migratory birds and insects have a strong need for connected corridors that provide habitat for resting and feeding, and that ensure that species are able to continue on their migratory journey without encountering large gaps of unsuitable habitat.
Marine Corridors
Marine ecosystems can contain naturally occurring corridors within the larger expanse of the ocean, such as the California Current and the North Pacific Transition Zone in the Pacific Ocean, which support whales, sharks, seals, seabirds, turtles, tunas, and other species.
Riparian Corridors
Riparian zones are natural corridors that help sustain subpopulations by allowing individuals to travel along aquatic corridors to find a habitat for breeding, feeding, nesting and more.
Mountain Corridors
Large mountainous regions, such as the Terai Arc in India and Nepal, can contain both protected and non-protected areas acting as corridors that are critical for wildlife movement and gene flow across a large landscape.
Large-scale Corridors
Appalachian Trail Landscape Partnership
The 2,200-mile trail acts as the backbone of a connected landscape that supports local wildlife across the eastern U.S.
Florida Wildlife Corridor
A state-wide corridor plan encompasses almost 18 million acres to protect and connect habitats that support threatened and endangered species.
Great Eastern Ranges
The initiative works to support and encourage partnerships that protect and connect landscapes across 3,600 km of eastern Australia.
Jaguar Corridor Initiative
The conservation program aims to protect jaguars across their 6 million km2 range by protecting and connecting landscapes from northern Mexico to Argentina.
Yellowstone to Yukon
A joint U.S.-Canada organization envisions an interconnected landscape from the Yellowstone National Park north to the Yukon Territory, focusing on key species such as grizzly bears, caribou, lynx, golden eagles and native cutthroat trout.
Resources
Find guidance from hundreds of published planning documents from the global community.
Read the details of how connectivity planning has been implemented in multiple cities and countries.
View bills and other legislation passed by individual states since 2015.
Search over 500 publications that focus on corridors and connectivity.
Videos, data, research, and lessons for K-12 or the undergraduate classroom.
Learn about the IUCN WCPA Connectivity Conservation Specialist Group.