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In the section of the river above the dam builds up with sediment, making the dam shallower. High water flow causes scouring and the transport of sediment and associated nutrients over the dam. On this other side of the dam phosphorus mobilizes in reaction with salt water. Further down the river seagrass beds grow on the Susquehanna flats.
Conowingo Dam Reservoir and Susquehanna Flats…
The Northern Great Plains Network consists of 13 park units located in the Dakotas, Nebraska and eastern Wyoming. This network consists of 11 ecoregions.
Northern Great Plains Network National Park…
This diagram illustrates the main threats from hurricanes and tropical storms. The counterclockwise circulation of winds in the Northern Hemisphere causes maximum winds and maximum storm surges.
Threats from Hurricanes and Tropical Storms
Badlands National Park sits upon highly erodible sedimentary rocks that form distinctive pinnacles, gullies and spires. Threats to the park include illegal fossiling and the invasion of weeds and non-native grasses.
Badlands National Park
Some of the most common threats to the national parks ecosystems include those to quality of air, quality and quantity of available water, and the parks native species. Prescribed fire is used to prevent uncontrolled forest fires and to reduce the growth of nonnative species.
Generic Resources and Threats to the Northern…
While Jewel Cave is currently in pristine condition there are several threats that could potential damage this site. These threats include the pollution of ground water that seeps into the cave at various points and visitor impacts.
Jewel Cave National Monument Threats and Features
The Niobrara River is where six major biomes converge to form a rich diversity of flora and fauna. Threats to the river arise from fire exclusion leading to the expansion of ponderosa pine into grassland area, changes in microclimates, the spread of invasive plants and the high volume of visitors during peak periods.
Niobrara National Scenic River Resources and…
The diagram lists potential indicators for the Ohio River Basin that were generated at the workshop. The goals listed in this diagram are representative of the things people value in the Ohio River Basin watershed.
Potential Indicators for the Ohio River Basin
As land use in the Chilika Lake area changes from forest to settlements and paddy agriculture sewage, and fertilizer and pesticides runoff increases into the Lake. This extra nutrient input results in algae blooms that float and sit on the bottom.
Chilika Lake Pollution Pressure
While tourism provides economic benefits to local communities surrounding Chilika Lake, tourist activities can have several negative impacts on the environment including air pollution, trash, noise and wildlife disturbances.
Chilika Lake Tourism Pressure
Several connections were made at the Lower Mississippi River Basin workshops. These connections will be used to develop a basin-wide report card for the watershed.
Lower Mississippi Workshop Connections
Gutters and downspouts installed onto buildings direct rainwater from roofs to rain gardens. Plants with deep root systems encourage stormwater infiltration and absorbs excess nutrient runoff.
Multiple Benefits of Rain Gardens
The Baltimore Oriole commonly occurs in eastern North America as a migratory breeding bird. Smaller and more slender than an American Robin, Baltimore Orioles are medium-sized, sturdy-bodied songbirds with thick necks and long legs. Look for their long, thick-based, pointed bills, a hallmark of the blackbird family they belong to.
Icterus galbula (Baltimore Oriole)
Side view of truck salting the road
Road salt truck
The Atlantic Bumper is a game fish found from Massachusetts to Florida in the Western Atlantic Ocean. They eat smaller fish, cephalopods, and zooplankton.
Chloroscombrus chrysurus (Atlantic Bumper)
The lined seahorse lives in the Atlantic Ocean as far north as Canada and as far south as the Caribbean, Mexico, and Venezuela. It swims in an erect position and uses its dorsal and pectoral fins for guidance while swimming. Lined seahorses feed mainly on minute crustaceans and brine shrimp, which they suck in through their snout.
Hippocampus erectus (Lined Seahorse)
The northern kingfish or northern kingcroaker, is a species of marine fish in the family Sciaenidae (commonly known as the
Menticirrhus saxatilis (Northern Kingfish)
Mnemiopsis leidyi is a species of tentaculate ctenophore originally native to the western Atlantic but is now invasive in the Black, Caspian, North and Baltic Seas
Mnemiopsis leidyi (Comb Jelly)
Haemulon plumierii, the white grunt or common grunt, is a species of ray-finned fish in the family Haemulidae native to the western Atlantic Ocean.
Haemulon plumierii (White Grunt)
River barge with tugboat, as often seen on the Mississippi River and used to transport commodities up or down the river.
River barge
Joshua Trees (Yucca brevifolia) growing in Hidden Valley of Joshua Tree National Park.
Hidden Valley in Joshua Tree National Park
Joshua Trees (Yucca brevifolia), endemic to the Southwestern United States, near Hidden Valley in Joshua Tree National Park.
Joshua Trees (Yucca brevifolia)
Illustration of cultural Odisha graphics associated with the east coast of India.
Cultural Odisha graphics
Illustration of an adult lessor flamingo flying
Phoenicopterus minor (Lesser Flamingo) : flying
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