Forest Sciences Commons^™

Changes In Floristic Composition In The State Forests In Worcester County (Massachusetts) Over 34 Years, Flor A. Monroe

International Development, Community and Environment (IDCE)

ABSTRACT

CHANGES IN FOREST DIVERSITY OF STATE FOREST IN WORCESTER COUNTY, MASSACHUSETTS, OVER 34 YEARS PERIOD

The forest in Massachusetts has changed since the earliest colonial settlement and today the floristic composition is more homogeneous. This study investigates the potential change in the floristic composition over thirty years in Worcester County State Forests. Shannon, richness and evenness indices for two periods were compared, and Jaccard index was used to analyze similarity in composition between the periods. The possible influence of severe weather events was also analyzed.

It was found Changes in the floristic composition, but the magnitude of the changes …

Assessment Of The Environmental Sector And Climate Change In Malawi: Relationships Between Environmental Policy, Scientific Literature, And Development Projects, Esther A. Baumann

International Development, Community and Environment (IDCE)

As funding increases for climate change related issues in Sub-Saharan Africa there should also be an increase in research to understand how scientific literature in the environmental sector can assist in developing policy and implementing development projects. Using secondary research, this paper centers on Malawi to develop an understanding of what is occurring in Sub-Saharan Africa as a whole in regards to climate change and environmental policy, science and development projects. It sought to determine if scientific thematic areas of research and recommended courses of action were being incorporated into actual government policies and on the ground development projects. This …

Fire Severity Controlled Susceptibility To A 1940s Spruce Beetle Outbreak In Colorado, Usa, Dominik Kulakowski, Thomas T. Veblen, Peter Beb

Geography

The frequency, magnitude, and size of forest disturbances are increasing globally. Much recent research has focused on how the occurrence of one disturbance may affect susceptibility to subsequent disturbances. While much has been learned about such linked disturbances, the strength of the interactions is likely to be contingent on the severity of disturbances as well as climatic conditions, both of which can affect disturbance intensity and tree resistance to disturbances. Subalpine forests in western Colorado were affected by extensive and severe wildfires in the late 19th century and an extensive and severe outbreak of spruce beetle (Dendroctonus rufipennis) in the …

The Relative Importance Of Tree And Stand Properties In Susceptibility To Spruce Beetle Outbreak In The Mid-20th Century, Felicia Bakaj, Nathan Mietkiewicz, Thomas T. Veblen, Dominik Kulakowski

Geography

Tree susceptibility to potentially lethal agents is determined not only by attributes of individual trees, but also by neighborhood effects at a range of scales. For example, effects of disturbances on individual trees are often contingent on the size, configuration, and other properties of neighboring trees. Wildfires can modify postfire properties of individual trees as well as of entire forest stands, both of which can affect subsequent ecological processes, including subsequent disturbances. In recent years, much has been learned about how disturbances interact, but numerous questions concerning underlying mechanisms remain unresolved. For example, the relative importance of forest properties at …

Not Only Climate: Interacting Drivers Of Treeline Change In Europe, Dominik Kulakowski, Ignacio Barbeito, Alejandro Casteller, Ryszard J. Kaczka, Peter Bebi

Geography

Treelines have long been recognized as important ecotones and likely harbingers of climate change. However, over the last century many treelines have been affected not only by global warming, but also by the interactions of climate, forest disturbance and the consequences of abrupt demographic and economic changes. Recent research has increasingly stressed how multiple ecological, biophysical, and human factors interact to shape ecological dynamics. Here we highlight the need to consider interactions among multiple drivers to more completely understand and predict treeline dynamics in Europe.