Basic Guidelines: Nature based subject matter. Please, declare captive subjects. Keep your image at/under 700 pixels on the long axis for in-line viewing and try to keep file size under 300kb. Note that this includes photos hosted off-site at Flicker, Photobucket, your own site, etc. Feel free to link your image to a larger version. In the strictest sense, nature photography should not include hand of man elements. Please refrain from images with obvious buildings or large structures. A bird on the fence or bug on your finger is fine. Try to minimize man made features, keep the focus on nature, and let common sense be your guide. Let's post 1 image per week.Good Morning, "The Complete History of Guam" was first published in 1964. Animals of the island are covered in 3 pages. Birds are not mentioned. While the Norway Brown Rat and African Snails are mentioned, there is a statement that hints at the calamity already under way. "To prevent the introduction of dangerous reptiles to the island, special care is taken in the unloading of cargo from visiting vessels." Brown Tree Snakes made their way to the island in the '40s. With no natural enemies they eliminated most of the forest bird population. 7 of the islands native bird species are extinct. 2 are extirpated in the wild. 6 species are rare and 3 are uncommon. On the sidelines lizard species have been decimated. In the absence of birds, spiders have flourished. Kudzu was introduced to parts of southeastern United States to help control soil erosion. It took to the climate and the fast growing vine became a bigger problem than erosion. Bushtail Possums were introduced to New Zealand from Australia to establish a fur trade. Burmese Pythons are a menace in the Everglades and south Florida. For varying reasons plants and animals leave the limits of predation, diet, and climate and make homes in new environments to the detriment of native species. Now what? There's no easy answer. Toxic mice for the snakes on Guam and gloves made in New Zealand from a Merino/Possum wool mix. Norway Maples are among the prettiest of autumn trees, but they are an invasive species in many places. Garlic Mustard, Multiflora Rose, Japanese Barberry and Stiltgrass are common in our woods, yet are all invasives. What does it all mean for us as photographers? We're out there and we see the changes in nature. Many embrace the problems and try to document the effects as well as potential solutions. Education is visual. Photos show the difference between the similar Stiltgrass, Smartweed, and a native Virginia grass. Photography helps us see and photos help us understand what we're looking at. The opener this week is of a small botanic battle between native and invasive species. Japanese Stiltgrass and Impatiens Capensis vie for position and dominance in a wet area where both can thrive. As a side note, I had planned this topic for awhile as I've been watching some efforts to deal with invasive plants at a nearby sanctuary. Last week's comments about noxious weeds were quite timely! Welcome to another Monday in Nature. What's happening in your end of the natural world?