Life Sciences Commons^™

Proposed Greenway Of Hatfield, Massachusetts - La497c - Senior Studio, Matthew G. Bent, Henry A. Hess, Andre E. Belperron

Landscape Architecture & Regional Planning Studio and Student Research and Creative Activity

This is one of five reports submitted for the LA497C Spring 2011 Senior Studio project.

This proposed greenway plan will be assessing the features of Hatfield such as, History, natural features, and open space within the town. After a thorough assessment of the towns features the report will cover the extensive proposed greenway plan, focusing mostly on the town center of Hatfield. The town center is the hub of the town where the major community buildings are such as the elementary and high schools, town hall, the town library, and most of the public recreation fields. Once the overall greenway …

Maintenance Of Genetic Diversity In Cordia Africana Lam., A Declining Forest Tree Species In Ethiopia, Abayneh Derero, Oliver Gailing, Reiner Finkeldey

Michigan Tech Publications

We assessed genetic variation in a total of 22 populations of the tree species Cordia africana Lam. in Ethiopia and analyzed the country-wide impact of population history, forest disturbance and alteration of land use on extant intraspecific diversity. Amplified Fragment Length Polymorphisms (AFLPs) and chloroplast microsatellite markers were investigated. The analyses of the AFLP data revealed high diversity in all investigated populations: the percentage of polymorphic loci (PPL) ranged from 62.2% to 92.2% and Nei's gene diversity from 0.220 to 0.320 within the populations. The mean PPL and the mean diversity within populations were 85.7% and 0.287, respectively. The analysis …

Carrying Capacity For Species Richness As A Context For Conservation: A Case Study Of North American Breeding Birds, Andrew J. Hansen, Linda Bowers Phillips, Curtis H. Flather, Jim Robinson-Cox

USDA Forest Service / UNL Faculty Publications

Aim To demonstrate that the concept of carrying capacity for species richness (S_K) is highly relevant to the conservation of biodiversity, and to estimate the spatial pattern of S_K for native landbirds as a basis for conservation planning.

Location North America.

Methods We evaluated the leading hypotheses on biophysical factors affecting species richness for Breeding Bird Survey routes from areas with little influence of human activities.We then derived a best model based on information theory, and used this model to extrapolate SK across North America based on the biophysical predictor variables. The predictor variables included the …