Urban primacy, or gigantism of the principal metropolis is
the most striking characteristic of the process of urbanization in most
South American countries. It is commonly assumed that the degree, and
evolution of primacy has been similar in all these countries since their
cultural, social, and economic backgrounds have been...
The impact of herbivores on primary producers in differing oceanographic
regimes is a matter of intense ecological interest due to ongoing changes in their abundance,
that of their predators, and anthropomorphic alteration of nutrient cycles and climatic
patterns. Interactions between productivity and herbivory in marine habitats have been
studied on...
Full Text:
. A., Ruiz, D., & Palacios, D. M. (2014). Oceanographic
and climatic variation drive top-down/bottom
Measurements of social constructs that evaluate natural hazard preparedness are important to decrease natural hazard vulnerability. Preparedness reduces natural hazard impacts and human vulnerability. Investment in education and education research contribute to human sustainable development and natural hazard preparedness. Faced with other needs, people typically do not prepare enough to...
Illegal behavior among fishermen is often explained using models that abstract from the moral and the political realm. These same models may also abstract from the institutional realities of law making and the behavioral realities of small businesses and families. Illegal behavior may be a result of situations where policy...
It has been hypothesized that horizontal gene/chromosome transfer and parasexual recombination following hyphal fusion between different strains may contribute to the emergence of wide genetic variability in plant pathogenic and other fungi. However, the significance of vegetative (heterokaryon) incompatibility responses, which commonly result in cell death, in preventing these processes...
The importance of seagrasses (families Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae) to estuarine communities is widely accepted and this, combined with their continued decline throughout the world, have resulted in a need to better understand the factors affecting their growth and reproduction. Conservation and restoration of seagrasses will require an understanding...
Ecosystems are facing increasing threats from human related activities, such as overfishing, pollution, habitat destruction, species invasions, and diseases, among others. While oceanic islands provide natural laboratories to understand ecological and evolutionary process, they are also particularly vulnerable to these impacts, given their usual isolation from the mainland and the...
This dissertation presents the findings of a literature review and information
regarding selection, implementation and development of a chemical composition
procedure for asphalt cements. The chemical composition analysis selected was
the Corbett-Swarbrick procedure standarized as ASTM D4124. The procedure is
a selective adsorption / desorption (solid / liquid) chromatography which...
The spread of invasive species into the Pacific Northwest (PNW) of the United States poses a serious threat to the valuable forest resources of the region. Many insects and diseases that are a threat to these forest resources can be transported inside firewood. When campers transport their firewood across borders...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...