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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…

A map shows that land use in the Ohio River Basin is dominated by developed, forested and cropland areas. Diagram from — Ohio River Basin Land Use

Chilika Lake Pollution Pressure

Chilika Lake Tourism Pressure

Lower Mississippi land use is dominated by developed, forested and cropland areas, and has the largest proportion of wetlands of the entire Mississippi River Basin. — Lower Mississippi Land Cover Map

Unsustainable fishing and aquaculture practices have put pressure on the Chilika Lake ecosystem. Dead fish thrown back into the water contaminate the lake while shrimp pens trap sediment and kill juvenile fish. — Chilika Lake Fishing and Aquaculture Pressures

Chilika Lake Sedimentation

Emergent wetland species are planted in a buoyant matrix that floats at the water surface. The roots of these plants grow through the matrix and take up the nutrients they need to grow directly from the water, potentially decreasing nutrient concentrations. — Floating Wetlands Structure and Impact

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

This killdeer nest of nothing more than a shallow depression in the gravel, was found a busy marina parking lot. The owners of the marina placed cinder blocks around the well-camouflaged nest to prevent cars from running over the eggs. The killdeer mother was standing nearby when this photo was taken.
This photo was taken in Easton, MD on May 22, 2014. — Nest and eggs of a Killdeer (Charadrius vociferus)

Newborn mockingbird nest tucked deep into thorny pyracantha hedge. — Nest of northern mockingbird (Mimus polyglottos)

Participants presenting a poster layout during the science communication course held at Horn Point Laboratory, Cambridge MD in May 2014. — Poster presentation

Participants presenting a poster layout during the science communication course held at Horn Point Laboratory, Cambridge MD in May 2014. — Poster presentation

Participants presenting a poster layout during the science communication course held at Horn Point Laboratory, Cambridge MD in May 2014. — Poster presentation

Coastal wetlands that are protected from erosion have an adequate sediment supply to build upwards, and will likely be more resilient to the effects of climate change. — Coastal Wetlands Resilience to Climate Change…

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)

Snowfall and the tilt of this bird feeder full of sunflower seeds did not deter these birds. Northern cardinals (Cardinalis cardinalis) and dark-eyed junkos (Junco hyemalis) were the primary visitors. The male cardinal is bright red and the female is a soft green-gray with red accents. Both have red beaks. The male junco found on the US East Coast has a pinkish beak and is slate gray on the top half of the body and soft white on the lower half. This photo was taken in February 2014 in Cambridge, MD USA. — Birds on a tilted bird feeder

A Maryland native shrub, the surrounding winter foliage of this Northern bayberry (Myrica pensylvanica) shrub provided a male Northern cardinal (Cardinalis cardinalis) with a protected perch. — Northern cardinal

A Maryland native shrub, the surrounding winter foliage of this Northern bayberry (Myrica pensylvanica) shrub provided a male Northern cardinal (Cardinalis cardinalis) with a protected perch. — Northern cardinal

Illustration for total nitrogen — Total nitrogen (TN)

The Chesapeake Bay watershed’s population is growing quickly. The watershed is currently home to 17.5 million people, and this number is projected to reach 20 million by 2030. — Population Map Chesapeake Bay Watershed

Illustration of Australian flag — Flag: Australia

Illustration of Queensland flag — Flag: Australia Queensland

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