Field Guide to Insects of South Africa by Alan Weaving, Charles Griffiths, Visit Amazon's Mike Picker PDF

By Alan Weaving, Charles Griffiths, Visit Amazon's Mike Picker Page, search results, Learn about Author Central, Mike Picker,

ISBN-10: 1770070613

ISBN-13: 9781770070615

Новый полевой атлас-определитель насекомых Южной Африки будет представлять интерес для энтомологов, как начинающих, так и профессионалов, специалистов по охране природы, организаторов туризма, садоводов, фермеров, туристов и всех, кто интересуется естественной историей. Во вводной главе обсуждаются вопросы морфологии, жизненного цикла, классификации и распространения насекомых Южной Африки. Она также касается коллекционирования и поясняет, как пользоваться данной книгой.
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Extra resources for Field Guide to Insects of South Africa

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Figure 1: The Ebbinghaus illusion. Are fishes fooled by optical illusions? Well, in a captive study of redtail splitfins—small fishes that originate from highland Mexican streams—they learned to tap the larger of two disks to get a food reward. Once they had mastered the task, the scientists presented them with the Ebbinghaus illusion, which consists of two disks of the same size, one of which is surrounded by larger disks, making it appear smaller (at least, to human eyes) than the other, which is surrounded by smaller disks (see Figure 1).

My book aims to give voice to fish in a way that hasn’t been possible in the past. Thanks to breakthroughs in ethology, sociobiology, neurobiology, and ecology, we can now better understand what the world looks like to fish, how they perceive, feel, and experience the world. In researching this book I have sought to sprinkle the science with stories of people’s encounters with fishes, and I will be sharing some of these as we go along. Anecdotes carry little credibility with scientists, but they provide insight into what animals may be capable of that science has yet to explore, and they can inspire deeper reflection on the human-animal relationship.

Similarly, many sharks have a large vein that warms the central nervous system by draining warm blood from the core swimming muscles to the spinal cord. The large, predatory billfishes (marlins, swordfishes, sailfishes, spearfishes) use this heat to warm their brains and eyes for optimal functioning in deeper, cooler waters. In March 2015, scientists described the first truly endothermic fish, the opah, which maintains its body temperature at about 9 degrees Fahrenheit above the cold waters it swims in at depths of several hundred feet, thanks to heat generated by the flapping of its long pectoral fins and conserved by a countercurrent heat exchange system in its gills.

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Field Guide to Insects of South Africa by Alan Weaving, Charles Griffiths, Visit Amazon's Mike Picker Page, search results, Learn about Author Central, Mike Picker,

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Categories: Zoology