When we think of endangered species, we are likely to think “cheetah” or “grizzly bear” or some other big, familiar, and in-the-news animal. But unfortunately, just about any sort of living thing can enter the list of endangered life. Scientists fear that the continuing elimination of habitat by humans and the changing climate could result in the loss of a million or more species in the foreseeable future. The Torrey pine, native to the coast of southern California, is on the endangered list. Before the city of San Diego and its suburbs developed, woodlands featuring this species thrived along the nearby rocky coast. The frequent cool afternoon fog helped the trees tolerate a climate where rain is scarce during the summer months. Now, largely because of human development, this beautiful tree with open, spreading branches is critically endangered. There are just two areas left where these trees grow in the wild. Fewer than 5,000 individual trees live on tiny Santa Rosa Island off the Santa Barbara coast and in the Torrey Pines State Reserve on the San Diego coastline. In addition to having an ever-shrinking natural habitat, the Torrey Pines have recently struggled to survive an onslaught of the five-spined engraver beetle, which bores through the bark and lays its eggs in the cambium layer of the tree. The beetle attack can result in shutting off the supply of water and nutrients to the tree, killing it. Healthy trees may be able to survive, but drought can weaken a tree, making it vulnerable to attack. Torrey pines do not replenish themselves easily. They take their time to produce seeds. The male flowers develop in February as clusters of reddish finger-like structures on lower branches. Their pollen fertilizes the female blossoms, which look like tiny red cones. It takes about 3 ½ years for the cones to grow and the seeds to develop fully. Then the cones release seeds, but some may remain until the cone itself drops from the tree as long as ten years after pollination. The Torrey Pines State Reserve works hard to protect these rare trees, but it may be too late. The increasing heat and dryness brought about by climate change could weaken the remaining wild trees, resulting in beetle damage and early death. Let’s hope these hardy beauties find a way to survive these difficult challenges.
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![]() The question “how smart are animals?” has puzzled many people for generations. Scientist Irene Pepperberg became intrigued with this problem after viewing NOVA TV programs about communication studies in apes and dolphins. Trained as a chemist, Irene decided then and there that her true passion was actually animal intelligence, not chemistry. Irene plunged into learning what was already known and the revolutionary ideas of scientists who were changing how people thought about animals. At that time, in the early 1970s, people thought that animals didn’t think and make decisions but merely responded moment by moment to their environments. But researchers working with apes and dolphins were overturning that concept and showing that indeed, animals could think, solve problems, and act intelligently about what they had learned. What about birds, Irene wondered? She had kept pet parakeets and knew they were smart and could learn to speak at least a few words. . She decided to study an African Grey parrot, a popular pet that can learn to pronounce words especially well. She bought a young parrot, named him Alex, and got to work. To probe Alex’s mind, Irene needed to teach him to use words to describe his world. This took long, patient training. After a few years Alex could name objects and foods, such as a key, a piece of wood, or a banana. He also learned several colors, and soon could label an object by both its label and color, such as identifying “green key” or “yellow corn.” He learned to distinguish whether an object was made of wood, paper, or rawhide, and could distinguish shapes such as “three-cornered” or “four-corner.” Alex also used his vocabulary to express his own desires. In the middle of an experimental session he might say “Want nut,” or “Wanna go shoulder.” As the years passed, Alex kept learning. If Irene presented him with a tray of items of different numbers and colors—say 2 green keys, 4 blue keys, and 6 red keys—he could correctly answer the question “What color four?” By the time he died suddenly and unexpectedly in 2007, Alex had learned more than 100 labels and showed understanding of many concepts. When people asked Irene why Alex was special, she’d reply, “Because a bird with a brain the size of a shelled walnut could do the kinds of things that young children do. And that changed our perception of what we mean by ‘bird brain.’ It changed the way we think about animal thinking.” ![]() Alex isn't the only bird Dorothy has written about. This book explores a University of Montana research project using blood samples from osprey chicks to investigate the effects of heavy metal refuse from mining on the ecology of the Clark Fork River. To learn more about The Call of the Osprey, go here. Dorothy Hinshaw Patent is a member of iNK's Authors on Call and is available for classroom programs through Field Trip Zoom, a terrific technology that requires only a computer, wifi, and a webcam. Click here to find out more. MLA 8 Citation
Patent, Dorothy Hinshaw. "Alex the Parrot, a Real Bird Brain." Nonfiction Minute, iNK Think Tank, 15 May 2018, www.nonfictionminute.org/ the-nonfiction-minute/Alex-the-Parrot-a-Real-Bird-Brain. ![]() ![]() No one can honestly deny that our climate has been changing in recent years. Before the winter of 2018-2019, California had only a year’s water supply stored in its reservoirs. Wildfires have become an annual threat throughout much of the west, while the Midwest and East Coast have experienced record-setting winters. These problems are due to complex interactions among temperature, winds, and water currents. A major change is the warming of the atmosphere. The earth’s atmosphere has been getting warmer since the late 1800s, when factories started spewing out carbon dioxide. Because natural variations also affect the temperature, a graph showing the temperature over time is a jagged line. But the trend is consistently upward and follows the graph of increasing carbon dioxide in the atmosphere due to human activities. That’s strong enough evidence that we are at least a large part of the problem, and the vast majority of climate scientists are urging countries of the world to reduce their carbon dioxide emissions. A major player in the world’s weather is the jet stream, which helps circulate the atmosphere around the world about every two weeks. This flow of fast-moving air speeds across North America from west to east, separating cold arctic air from warmer, more southerly air. The jet stream used to run in a fairly direct arc across the northern United States. But in recent years it has become less stable, dipping southward in the eastern U.S. to bring frigid winters to the Northeast while arching northward in the West, carrying warm, dry air there. Scientists believe that the rapid melting of the Arctic ice brought about by global warming is part of the cause for the jet stream’s instability. However, climate trends are controlled more by the oceans. Scientists estimate 95% of the heat from global warming is being stored in the oceans, increasing water temperatures even into the depths. As global warming continues, so will climate change. The melting of sea ice and glaciers is already raising the sea level. While scientists don’t blame climate change for devastating Hurricane Sandy, Sandy’s extreme coastal flooding was made worse by the increase in sea level that’s already occurred. As time goes on, coastal cities around the world will be at increasing risk for more severe storm damage. Because warm air holds more moisture than cold air, storms are becoming more severe, increasing blizzards and flooding storms. Some agricultural regions that depend on reliable rainfall may soon be unable to grow crops, disrupting the food supply. Climate change is complicated, but because it affects us all, we need to learn about it. The Environment Protection Agency has questions and answers about climate change. ![]() Yellowstone National Park’s majestic geologic wonders and remarkable wildlife draw millions of visitors each year. But there was a time when these natural treasures were in great danger, all because after years of unrestricted hunting, one key piece of the puzzle had been eliminated—the wolf. Now, more than a decade after scientists realized the wolves’ essential role and returned them to Yellowstone, the park’s natural balance is gradually being restored. Dorothy Hinshaw Patent's text supplemented by spectacular full-color photographs show the wolves in the natural habitat that was almost lost without them. Click here to find out more. Dorothy Hinshaw Patent is a member of iNK's Authors on Call and is available for classroom programs through Field Trip Zoom, a terrific technology that requires only a computer, wifi, and a webcam. Click here to find out more. MLA 8 Citation
Patent, Dorothy Hinshaw. "Climate Change: The Facts and the Consequences." Nonfiction Minute, iNK Think Tank, 17 Apr. 2018, www.nonfictionminute.org/the-nonfiction-minute/ Climate-Change-The-Facts-and-the-Consequences. ![]() People are confused. They hear the terms “global warming” and “climate change” tossed about without much explanation. We all talk about the weather, but what does that word actually mean, and how does it relate to these other terms? NASA defines global warming: “Global warming is the increase in Earth’s average surface temperature due to rising levels of greenhouse gases.” So global warming is a measurable statistic. Record the temperature at many sites on Earth for a given year, add them up, and divide to get an average. Rising levels of greenhouse gases are also well measured. The famous “Keeling curve” of atmospheric CO2 begun in Hawaii in 1957 is the best example. Climate change is more complicated. Climate change is a long-term change in the Earth’s climate and includes measures of the atmosphere, oceans, land, cryosphere (snow and ice), wind, precipitation, deforestation, wildfire, and more, as well as temperature. So, climate change is a more inclusive measure of many factors changing the Earth system, which is very different from a single statistic like the rise in temperature from global warming. Then there’s the weather. What, exactly is the weather? That term refers to what’s going on in the atmosphere at a particular time and place. It includes the air temperature, wind speed, humidity, and precipitation. Weather happens day to day, while global warming is shown by recording day-to-day temperatures over a long period of time. Climate change is a long-term process that can result in drastic changes in conditions on our planet. To sum up: Weather refers to what’s happening in the atmosphere at a given time and place over the course of days to months. Global warming refers to an upward trend in the average temperature over a period of years to decades. Climate change is a long-term process that can be influenced by changes in the average temperature but includes many other factors. To watch a brief but amazing video of the affect of global warming and climate change over the next 20 years, click here. ![]() Dorothy's recent book The Call of the Osprey, has been chosen as a Best Science Trade Book for Students by the National Science Teachers Association. It covers research being done in Western Montana by scientists at the University of Montana. Starting in the late 1800's, Butte, MT, at the headwaters of the Clark Fork River, was the largest copper mine in the U.S. The major result of the mining was two-fold—the electrification of America and the largest Superfund cleanup site in the U.S. Call of the Osprey deals not only with current research but also with the history of Butte and the lives of the scientists involved in the research. Click here to find out more. Dorothy Hinshaw Patent is a member of iNK's Authors on Call and is available for classroom programs through Field Trip Zoom, a terrific technology that requires only a computer, wifi, and a webcam. Click here to find out more. MLA 8 Citation
Patent, Dorothy Hinshaw. "Defining Weather, Global Warming, and Climate Change." Nonfiction Minute, iNK Think Tank, 16 Apr. 2018, www.nonfictionminute.org/the-nonfiction-minute/ Defining-Weather-Global-Warming-and-Climate-Change. Have you ever heard of the Tasmanian devil? It’s actually nothing like the cartoon version—the real devil is a black animal with white markings that’s smaller than a cocker spaniel, and it’s in trouble. The Tasmanian devil once lived on the continent of Australia but now survives in the wild only on the island state of Tasmania, just off Australia’s south coast. It’s the largest surviving marsupial carnivore in the world. A marsupial’s young develop in a pouch on their mother’s belly rather than in a uterus inside their mother’s body. Other than females with young, the devils are solitary, living in a burrow in the ground during the day and coming out at dusk to feed. Devils can hunt for prey but much of their diet consists of dead animals—carrion--such as road-killed wallabies and wombats. A disease spreading across the island since 1996 has decimated the devil population. Scientists and wildlife managers are working hard in an effort to study and protect this unique species. The killer, called Devil Facial Tumor Disease (DFTD), is unusual. It’s not caused by a virus or by bacteria. It’s a form of cancer that began with a single devil, and it can spread from one animal to another. Devils will bite each other as they fight over carrion, and the cancer cells on the face of one devil can infect another as they fight. Normally, an animal’s body can recognize cells that aren’t its own and destroy them. But DFTD cells protect themselves from being “discovered,” as if wearing an invisibility cloak. They invade their victims’ bodies and eventually kill them. DFTD spread so fast and killed so many devils that the government and scientists feared that the Tasmanian devil would become extinct in the wild. They established disease-free colonies in captivity on the Australian mainland and on Tasmania and studied the cancer in laboratories. Now, the devil is making a comeback—there’s a vaccine that provides some protection to captive devils that have been released in the wild, and ecologists have found that some wild devils are able to fight the disease on their own. Meanwhile, another kind of facial tumor disease has appeared. It’s spreading more slowly, but biologists and the devils still have a lot to deal with. You can learn more from the Save the Tasmanian Devil Program .
![]() This is Dorothy's book, Saving the Tasmanian Devil, as part of the Scientists in the Field Series. Read Vicki Cobb's review of this wonderful book. |
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