Yellowwood Black Wattle The destruction of 150 trees by a programme that has made real impacts on South Africa’s environment is regrettable but not really serious, until the underlying [...]
150 Indigenous Yellowwood Trees Destroyed as Invasive Alien Species – Lessons For South Africa?
August 6, 2009 By 3 Comments
Why Do Buffalo Roam? – Short Term Loss vs. Long Term Gain
August 5, 2009 By 1 Comment
[social_buttons} Both economic theory and experimental data concur–increasing the distance traveled to find food incurs “negative fitness consequences”, by decreasing total energy for maintenance, repair and reproduction. Yet, most animals must travel to find food. Individual, small groups, and large herds of eutherian (placental) mammals–like wild buffalo, gazelles, lions, and elephants–often travel great distances to [...]
World’s Lakes: Sentinels of Climate Change
August 5, 2009 By 1 Comment
View of Blüemlisalp and Oeschinen lake, Bernese Alps As climate scientists scour the Earth’s surface looking for indications of climate change impacts, freshwater lakes and reservoirs are becoming the sentinels of choice for many investigations. Although they make up a small percentage of the planet’s surface area, such bodies of water–small to large–are providing clues [...]
Killers of Endangered Grizzly Bear Finally Facing Felony Violations
August 5, 2009 By 4 Comments
Thanks to wildlife authorities acting on a tip that led to the bear’s gruesome “burial site” on a family farm, two men are facing felony violations of the Endangered Species Act for shooting a grizzly bear in Washington State. Two men accused of killing a grizzly bear while on a hunting trip in 2007 will [...]
Factor 32 – Calculating the Rate of Consumption
August 5, 2009 By Leave a Comment
World Fertility Rate Map The current world population is approximately 6.5 billion people and growing. By or before 2050, that number will grow by almost 50% to 9 billion. With the availability of birth control and better education rates for women being higher in developed (industrial or post-industrial) nations, most of this increase is projected [...]
