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Marine ecological services provide goods, amenities, food resources, and economic benefits to millions of people globally. The loss of these services, attributed to the infiltration of marine invasive species such as the Indo-Pacific lionfish (Pterois volitans/miles), is measurable. The highly successful lionfish now flourishes in great densities in the US Gulf of Mexico and Atlantic waters and the entire Caribbean, yet the loss of ecological services attributed to the invader has not yet been assessed. In this study, we employ a derivative of a well-utilized method of ecosystem valuation known as habitat equivalency analysis to measure the time-value-adjusted loss of biomass- and recruitment-related ecosystem services brought by lionfish to Bahamian reefs. Drawing upon the literature examples of tangible lionfish damages in the Bahamas, we (1) quantitatively evaluate the loss of ecosystem services instigated by lionfish by measuring the total service-year losses partitioned over yearly time steps, (2) provide a metric by which ocean managers may value the remunerations of Bahamian lionfish controls when weighed against removal costs, and (3) deliver a tool to quantify changes in ecosystem services as a consequence of invasive species impacts and control. We found that the invader imposed losses of 26.67 and 21.67 years to recruitment and biomass services per km.sup.2 of Bahamian reef if left uncontrolled. In the same accord, the most conservative Bahamian lionfish removal regime modeled, i.e., which produced a 50 % recovery of pre-lionfish ecosystem function over 10 years, provided service gains of 9.57 and 4.78 years per km.sup.2. These data deliver a platform upon which to quantify present and future fiscal costs of the lionfish invasion and also to value lionfish control efforts., Author(s): Matthew W. Johnston[sup.1], Sam J. Purkis[sup.2], Richard E. Dodge[sup.2] Author Affiliations: (1) National Coral Reef Institute, Guy Harvey Research Institute, Halmos College of Natural Sciences and Oceanography, Nova Southeastern [...]

This publication, published quarterly by the American Institute of Biological Sciences, focuses on biology education in colleges and universities. Included in this issue are articles dealing with adapting available materials to an individualized instructional format, science seminars for liberal arts freshmen, the role of physiology in anatomy courses, a profile diagram for focusing thought on environmental problems, and the implementation of computer-assisted instruction in biology using structured and nonstructured mastery strategy with varying feedback specificity. (MH)

This publication, published quarterly by the American Institute of Biological Sciences, focuses on biology education in colleges and universities. Included in this issue are articles dealing with mini-investigative labs in microbiology for nonscience students, the effects of various components of the Keller system on student attitudes and performance in plant anatomy, marine biology curricula, available BIOTECH modules, and short courses on the biology of the Gulf Coast. (MH)

Topics dealing with biology teaching are presented in this quarterly review. Major entries include contributed articles on "Take-Home Laboratory Activities: One Answer to the Time and Space Problem,""Application of a Cooperative University/Middle School Model to Enhance Biology Education Accountability," and "A Report on Computers in Biological Teaching." Also in this issue are reports on the American Institute of Biological Sciences (AIBS) pre-summer school courses and an audiotutorial biology program. (CP)