منابع مشابه
The White Oaks Laccoliths
About 12 miles to the northeast of Carrizozo lies the “ghost town” of White Oaks. This once thriving mining community rests in a small valley surrounded by three wrinkled and rounded mountain peaks: the remains of a ancient cluster of laccoliths (see attached Figure 1). To the northwest lies Lone Mountain with its associated peak, Baxter Mountain, while to the southeast lies Patos Mountain and ...
متن کاملFabled oaks hope
Two aspects of the genetics of floral traits in Aquilegia have been studied: flower color and flower development. A recent comparative study showed that species that did not produce floral anthocyanins (the red and blue pigments in most flowers) also had significantly lower expression levels for multiple genes needed to produce the pigments. However, crossing studies suggest that a single gene ...
متن کاملMapping Defoliation with Lidar
The aim of this article is to present a concept of using airborne laser scanning (LIDAR), with one scan only, to map defoliation as a forest health variable. The idea is to apply two independent algorithms on the LIDAR data set, to produce both actual and expected leaf area index (LAI) values for every cell in a grid over the area. LAI is estimated based on laser pulse penetration through the c...
متن کاملSaplings into oaks.
We decided to work on this idea that GP registrars are competent but not confident. How can we help registrars to leave us not as saplings but as young oaks? In Bristol we now have speciality doctors for 18 months in general practice and if recommendation 45 of Sir John Tookes’ Report on Modernising Medical Careers is carried out then we will come into line with Europe. The length of training i...
متن کاملSerotiny in California Oaks
Although prolonged seed retention, or serotiny, is believed to be an adaptation to highly variable environments such as the Mediterranean regions of California, no prior study has systematically investigated the prevalence of seed retention among California oaks (family Fagaceae), the dominant woody taxon in California foothill woodlands. We quantified the extent to which acorns were retained i...
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ژورنال
عنوان ژورنال: Nature
سال: 1922
ISSN: 0028-0836,1476-4687
DOI: 10.1038/110250a0