The position and complexity of plant leaves are two of the first characters to look at when identifying plants. All species of maple in the preserve have simple leaves. In addition the leaves are attached opposite to one another on the stem. The only other tree genus with opposite, simple leaves is cornus (dogwood) but that genus has entire, not lobed, leaf blades.
Radiation is energy that moves through space or matter at a very high speed. This energy can be in the form of particles, such as alpha or beta particles, which are emitted from radioactive materials, or waves such as light, heat, radiowaves, microwaves, x-rays and gamma rays. Radioactive materials, also known as radionuclides or radioisotopes, are atoms that are unstable. In nature, there is a…
Chair Vongraven asked for comments on the meeting agenda. No additional comments were made and the agenda, as distributed ahead of the meeting, was accepted and a schedule for rapporteurs was established. T. Atwood volunteered to coordinate the reports from the individual rapporteurs (J. Aars, S. Amstrup, A. Derocher, G. Durner, A. Jessen, N. Lunn, M. Obbard, E. Richardson, K. Rode, I. Stirlin…
These three alarming vignettes might appear, on one level, to reflect quite dif-ferent concerns: abortion, surrogacy, and adoption. But a closer look reveals some deeper connections, and it is these deeper, more insidious connections that this collection of essays explores: the asymmetrically distributed privilege and precarity within which reproductive choices are made, the confluence of diffe…
Open your eyes to a world of discovery. Enter the extraordinary empire of the creepy-crawly. From dung beetles to dragonflies, meet the neighbors you rarely see -- but are essential to your life. A wealth of facts, combined with dramatic photography, ensures that Eye Wonders are the perfect educational start for young children. Eye Wonders is a groundbreaking reference series specially develope…
Polar bears are a charismatic Arctic species and the anticipated effects of climate change on their habitat have gained increasing international attention, making the species a high-profile conservation priority. Changes to the Arctic ecosystem will not only affect polar bears and their habitat, but also the livelihoods of Arctic communities. Hunting polar bears helps maintain cultural identit…
Everyone loves sitting out on their deck or patio and seeing the beauty of an organic flower garden. The colors and the scents can add hours of joy to any day. Flower gardens are useful for growing food as honeybees, bumblebees, wasps, hummingbirds, butterflies, and beetles do much of the heavy lifting for you in your edible gardens. These insects and birds pollinate our food crops from big to …