نتایج جستجو برای: paleo ecology
تعداد نتایج: 54894 فیلتر نتایج به سال:
Abstract Synanthropic behavior, i.e., the behavior of wild animals that benefit from a shared ecology with humans, has existed long before sedentarization Homo sapiens during Neolithic, around 10,000 years ago. This study describes and discusses concept an older animal-human relationship: paleo-synanthropic associated niche. Key features this new niche are anthropogenic food waste mobile hunter...
Catastrophic drainage of glacial Lake Missoula through the Columbia River Gorge, USA, produced some largest floods ever known. However, erosion gorge during flooding has not been quantified, hindering discharge reconstructions and our understanding landscape change by megafloods. Using a neural network field observations, we reconstructed topography found ?7.4 km3 rock was eroded from walls. Ac...
We developed an algorithm to improve richness assessment based on paleoecological series, considering sample features such as their temporal resolutions or their volumes. Our new method can be applied to both high- and low-count size proxies, i.e. pollen and plant macroremain records, respectively. While pollen generally abounds in sediments, plant macroremains are generally rare, thus leading ...
Abstract Reconstructing river planform is crucial to understanding ancient fluvial systems on Earth and other planets. Paleo-planform typically interpreted from qualitative facies interpretations of strata, but these can be inconsistent with quantitative approaches. We tested three well-known hydraulic predictors in Cretaceous strata (in Utah, USA) where there a facies-derived consensus paleo-p...
The study area is located in northeastern Iran (south of Mashhad). Paleo-Tethys Ocean opened during Silurian time and subduction under Turan plate was started in Late Devonian. By Late Triassic (225 Ma) there was no Paleo-Tethys left on an Iranian transect, therefore Turan plate obducted over Iran Plate. Two stages of low grade regional metamorphism are exposed, that are related to Hercynian (L...
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