4 || $quadrat <=0)) { $quadrat = 1; } $month = $HTTP_GET_VARS['m']; switch($month){ case("apr"): $monthNum = 4; break; case("may"): $monthNum = 5; break; case("jun"): $monthNum = 6; break; case("jul"): $monthNum = 7; break; case("aug"): $monthNum = 8; break; case("sep"): $monthNum = 9; break; case("oct"): $monthNum = 10; break; default: $monthNum=""; } ?> Virtual Prairie Quadrats [Landscape Change/Landscape Loss]

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Quadrat     Interactive view over time

Macromedia Flash movie (requires Macromedia Flash)  Non-Flash

crocuses still blossom in numbers."); break; case(2): echo("This quadrat lies adjacent to a large housing development. Unfortunately, a number of invasive species including Kentucky bluegrass, leafy spurge and Canada thistle have set seed in this area. Diligent hand-pulling of these invasive species has kept them in control, allowing a number of native species to thrive including white cinquefoil and white prairie clover."); break; case(3): echo("Quadrat 3 is situated in an area which has benefited from the effects of a recent controlled burn. From out of the May ashes flourish the delicate purple flowers of the ground plum. As July approaches August, the striking yellow of the beautiful sunflower is replaced by the vibrant golden blooms of Canada goldenrod. By season end, the area is set ablaze with the reddish hue of big bluestem."); break; case(4): echo("This quadrat lies in an area which was once a common roadway. Fortunately, a number of native species survived the disturbance, having blown in from adjacent areas or awakening from a long dormancy in the seed bank. Although considerable litter is present in the area, a number of native species have managed to thrive including purple prairie clover and low prairie rose."); break; } ?>