Entomologists in Action
Entomologists in Action
All scientists figure out whether their findings are significant (meaningful) or whether they could be produced by chance, or by some factor that they have not thought of or can’t control. If an entomologist introduces a predator to eat insects that cause disease, and the disease becomes less common, they need to make sure the predator is really the reason for the change. Could a change in the weather, or some aspect of people’s behavior, be affecting the rate of disease instead? Repeating tests, checking other conditions, and thinking through other possibilities are important parts of verifying scientific work.
The “Scientists in Action” series examines the work done by scientists in particular fields of study. Even within a specific field, there are several offshoots. Each title shows readers some of the history behind the science as well as how scientists are working towards a better future through the development of materials and equipment that could provide more information or improve the quality of human life.
Averaging 13 chapters each, the titles feature scientists at work, tools of the trade, recent discoveries, global collaborations and sharing of information, peer reviews of theories, and scientific practices. All of the books have instructions for an experiment related to the topic, but some of the experiments require days or weeks of observation and note-taking, and it is unlikely that most readers will persevere unless they are really keen. Text boxes provide additional information, while mini-biographies highlight the work done by scientists in the field. (One example is Olivia Harper Wilkins, an astrochemist, who has identified more than 200 different molecules in the interstellar medium, the space between galaxies. Her research has led to evidence that life might be possible in other parts of the solar system.)
There is a balanced representation of both genders in the mini-bios as well as in the photographs that appear throughout the series. The text varies in its complexity, making it easier to comprehend in some of the titles compared to others, largely due to the technical aspect of the topic. Among the eight titles in the series, there is quite a bit of repetition, especially as it pertains to steps in the inquiry process and to peer review and the sharing of information among scientists. Illustrations consist of diagrams and both black and white and colour photographs. Though all of them are labelled, some of the descriptions require more detail, and a couple of the illustrations are too complicated for the target age group. For example, in the title about food scientists, there is a diagram showing the molecular structure of Vitamin C. Unless readers are familiar with molecular structure, this diagram will be of no use. A table of contents, a glossary, an index, and a list of books, websites and places to visit for further study are included.
On Earth, there are more arthropods- insects, spiders, mites, scorpions, centipedes, millipedes, and land-based crustaceans- than any other creature. Entomologists in Action features the work of these scientists in the areas of agriculture, medicine, forestry, robotics and ecology, but the main focus is on diseases, such as malaria and Lyme disease, that are caused by insects. Working to eradicate harmful insects without destroying helpful insects, such as bees, is an ongoing dilemma. One timely question being asked lately is how will the distribution of disease-carrying arthropods be affected by climate change? Medical entomologists are also trying to find ways to prevent mosquitoes from spreading diseases between people. Readers can try the experiment at the back of the book. Its purpose is to show how and when arthropods break down different types of food waste. This investigation is done over a two to four week period, with daily observations necessary.
Generally, “Scientists in Action” series provides a fairly good introduction to the various types of scientists, but there is a lot of repetition among the books’ texts, and some of the experiments are questionable.
Gail Hamilton is a former teacher-librarian in Winnipeg, Manitoba.