Article contributed by Keith Evans, Ph. D., retired ornithologist and co-author of Utah鈥檚 Featured Birds and Viewing Sites: A Conservation Platform for IBAs and BHCAs (Keith Evans and Wayne Martinson, 2008. Sun Litho, Salt Lake City, UT. 364 pp.).
I arrived at the Bear River Migratory Bird Refuge on a brisk spring morning. We old-timers fondly remember the vintage 鈥渃uckoo clocks,鈥 but modern clocks will sound off on the hour with many other noises鈥攖rains, dogs, cows, and yes, birds. As I listen to the sounds of spring on the marsh, I long to buy a 鈥渟pring marsh" clock. I close my eyes and begin to relax as I hear Mallards, Canada Geese, Tundra Swans, American Avocets, California Gulls, Marsh Wrens, Song Sparrows, Red-winged Blackbirds, Yellow-headed Blackbirds and more. It鈥檚 tempting to get lost in the moment; however, my mind wanders to the value of these protected refuge marshes and the substantial contribution they make to the Bear River Bay Important Bird Area (IBA) and larger Great Salt Lake ecosystem. My heart yearns for a national ethic of sustainable land management with a high diversity of native species.
In Utah there are . Five of these include the five major bays of Great Salt Lake, all of which are categorized as 鈥済lobal鈥 in their area of influence, underscoring the significance of this large saline lake and its wetlands to North American bird populations. 探花精选 worked with landowners and other organizations using a nomination and technical review process to establish the five IBAs in 2004. According to Wayne Martinson, former Utah IBA coordinator, 鈥淕reat Salt Lake could have been designated as one IBA, but then the variations of this complex lake system would have been lost. Salinity levels differ across the lake, resulting in different habitats and bird species. The fact that each bay easily qualified as a global IBA by itself further highlights the value of each site.鈥 Additionally, the entire lake is designated a (WHSRN) site of hemispheric importance. Both IBA and WHSRN designations are earned by meeting international criteria considered important for safeguarding bird populations and form the cornerstone for future monitoring and conservation efforts.
Collectively, Great Salt Lake鈥檚 five globally significant IBAs provide essential resting and staging habitat for large populations of migratory bird species, including 56 percent of the world鈥檚 population of American Avocets and 40 percent of Wilson鈥檚 Phalarope. In 2015, state biologists observed an astonishing 4.7 million Eared Grebes who rely on the lake's brine shrimp to gain enough weight for a long journey back to Mexico. More than 20,000 and the largest colony of White-faced Ibis in North America nest in the wetlands of Bear River Bay, still rebounding from a dangerous population crash during the DDT pesticide days. There are many other bird species that rely on high-quality habitat at Great Salt Lake, such as Common Goldeneye, Ruddy Duck, Snowy Plover, Long-billed Curlew, Marbled Godwit, Western Sandpiper, Bald Eagle, Caspian Tern, Sage Thrasher, Canvasback and Sandhill Crane. Protecting IBAs will assure that these species continue to be our neighbors.
鈥淲hat鈥檚 next for Great Salt Lake's Important Bird Areas?鈥 is the driving question for future conservation. Currently, the largest threat with the most unknowns is driven by declining lake levels, and how this could worsen with increased water diversions, continued drought, and global climate change. In spite of鈥攐r probably because of鈥攖hese unknowns we must strengthen conservation and leadership to minimize the potential catastrophic result of this scenario. We study history to understand that鈥攚hat has happened in the past can happen again. It only takes a brief look at , the Aral Sea in Central Asia, or other 鈥渄e-watered鈥 areas around the world to know that the cities and human populations along the Wasatch Front could not exist if Great Salt Lake dries up and the ensuing high salt content dust storms destroy downwind vegetation. In most cases, protecting wildlife habitat is not only for wildlife, but for all life, including humans.