Kick back and relax. Enjoy the concert in the BBC video below, which rolls footage also aired in a first-rate documentary, Ocean Giants.
Nature | Natural Resources
Dr. Sylvia Earle, who broke through the gender barrier fifty years ago and has been studying the ocean ever since.
This giant Sequoia is not only awe inspiring, it’s still growing! At the rate of one cubic meter per year he is one of the fastest growing trees in the world, despite his great age. There is only one place on the entire planet where giant sequoias grow; the Sierra Nevadas mountain range in California, found only on the western slope 5000-8000 feet above sea level.
“When you thrust a shovel into the soil or tear off a piece of coral, you are, godlike, cutting through an entire world. You have crossed a hidden frontier known to very few. Immediately close at hand, around and beneath our feet, lies the least explored part of the planet’s surface. It is also the […]
Arizona Wildlife Notebook, Second edition I have completed the second edition of the Arizona Wildlife Notebook! The new Notebook has four more species groups than the first edition, and it has an expanded index. The most important change is in the conservation status for each species. This time, I standardized the information so that future […]
Monarch (Danaus Plexippus) Mourning Cloak Butterfly (Nymphalis antiopa) Two-tailed Swallowtail (Papilio multicaudata) Conservation Status of Arizona Wildlife Many species of Arizona wildlife are drifting toward extinction. Over half of the larger animals listed by the Arizona Game and Fish Department (AZGFD) are in danger, and the status of many smaller species such as the three […]
Arizona Butterfly and Moth Conservation Two-tailed Tiger Swallowtail (Papilio multicaudata) Arizona’s butterfly. Butterflies and moths are pollinators and they are food for other species. I know of no harm they cause to human interests. Nevertheless, many die from insecticide poisoning and others decline due to human removal of caterpillar host plants. The conservation status of […]
Small stretches of the Agua Fria River in central Arizona are perennial. The water is polluted by farm fertilizer and mine tailings. Invasive species are abundant. The U. S. State of Arizona occupies a dry region with limited precipitation, high evaporation, and not much surface water. Widespread winter rain and snow, and heavy summer rain […]
The Audubon Society’s Christmas Bird Count shows that since 1967, many U. S. birds have declined. Twenty of our most familiar bird species (Common Birds in Decline) have lost at least half their populations over the past four decades. The causes of some of the declines are know. Observers have reported direct connections to habitat destruction […]
Grasshoppers, Crickets, and Katydids are familiar to everyone, but there are few records of distribution and conservation status. This report includes a partial checklist for Arizona grasshoppers. Grasshoppers are members of the Orthoptera, one of the most familiar insect orders. Orthoptera includes two suborders: Caelifera (grasshoppers and relatives) and Ensifera (crickets, katydids, and gryllacridoids). The […]