BIOTREE (BIOdiversity and ecosystem processes in experimental TREE stands) is a long term, manipulative experiment on the role of tree diversity for ecosystem functioning of temperate forests. To our knowledge, the BIOTREE experiment is unique in its size and experimental design, adding value to existing or recently established forest diversity experiments in Finland, Panama and Borneo. ... [Information of the supplier]
There is a boom in the realm of conifer literature in recent years and this book is among the major contributions to "conifer science". The increasing interest towards conifers is nurtured by exciting new discoveries, the recognition of a greater need for their conservation, and their benefits and usage in many arenas of human life. And as stated in a personal note by the authors, "if botany is "scientia amabilis"—the "amiable science"—then, for us, the study of conifers is "scientia amabilissima"—the "most amiable science."" Conifers include approximately 625–700 species worldwide and up to 1000 taxa including distinctive subspecies and varieties, compared with an estimated 250,000 species of flowering plants, but conifers are much more important to the world's landscape and ecology than their relatively small number of species might suggest. Conifers have their own unique appearance, especially when compared with broad-leaved trees. Enthusiasts and collectors around the world have provided a huge niche for them among cultivated plants, and the unparalleled beauty of many conifers—especially cypresses (Cupressus), cedars (Cedrus), firs (Abies), and spruces (Picea)—enhances innumerable landscapes, both public and private. ... [Information of the supplier, modified]
Many invasive species, like Garlic Mustard (Alliaria petiolata), are threatening the world's natural resources, but the abundance of invasive species can vary dramatically over space and time. Scientists still do not have a good understanding of why this is so. Through large-scale sampling, scientists can identify areas that differ in the intensity of invasion and try to understand why these differences exist. We can also compare this to variation in the native range. This may be crucial to researching new methods of control, but a large project like this could cost millions of dollars and years of work. Through the use of a simple, standardized protocol, volunteers can help to generate valuable scientific data. Participating in this research does not require specialized training. ... [Information of the supplier]