Quantitative biodiversity measures applied to forest management

1995 ◽  
Vol 3 (3-4) ◽  
pp. 277-285 ◽  
Author(s):  
John M. Silbaugh ◽  
David R. Betters
Keyword(s):  
Species Richness ◽  
Forest Management ◽  
Large Scale ◽  
Landscape Scale ◽  
Habitat Modeling ◽  
Scale Analysis ◽  
Quantitative Indices ◽  
Advantages And Disadvantages ◽  
Large Scale Land ◽  
Forest Managers

Forest managers faced with incorporating the maintenance of biodiversity into their analyses, plans, and decisions need reliable, quantitative measures of biodiversity. This paper reviews and critiques quantitative approaches that have been developed to measure the three basic attributes of diversity: species richness, heterogeneity, and evenness. These approaches are discussed in terms of application to fine- and large-scale land areas. The advantages and disadvantages of each measure are described relative to forest management. Habitat modeling, which combines aspects of both fine- and landscape-scale analysis, may hold the greatest potential for monitoring forest-level diversity in ways that are meaningful, measurable, and manageable.Key words: biodiversity, quantitative indices, forest management.

Forest fragmentation and forest management: A plea for empirical data

2002 ◽  
Vol 78 (5) ◽  
pp. 686-689 ◽  
Author(s):  
Robert G G. D'Eon
Keyword(s):  
Forest Management ◽  
Forest Fragmentation ◽  
Habitat Loss ◽  
Spatial Patterns ◽  
Empirical Data ◽  
Landscape Scale ◽  
Managed Forests ◽  
Habitat Loss And Fragmentation ◽  
Theoretical Predictions ◽  
Forest Managers

Forest fragmentation is one of the most important conservation issues of recent times. Most of what we know about forest fragmentation is based on speculation and untested theory due to a paucity of empirical data. The lack of empirical data can be attributed to (1) the extreme difficulty in conducting good fragmentation studies, and (2) confusion between habitat loss and fragmentation effects. Empirical data from well-designed fragmentation studies is direly needed to validate theoretical predictions stemming from the fragmentation paradigm. Since the best data will come from landscape-scale experiments in managed forests, partnerships and support from researchers and forest managers is critical in this pursuit. Key words: empirical data, forest fragmentation, landscape spatial patterns

“Community Interests” and the Role of International Law in the Creation of a Global Market for Agricultural Land

2018 ◽  
Author(s):  
Jochen von Bernstorff
Keyword(s):  
International Law ◽  
Large Scale ◽  
Agricultural Land ◽  
Food Sovereignty ◽  
Global Market ◽  
Negative Consequences ◽  
Cultural Rights ◽  
Land Grab ◽  
Large Scale Land ◽  
The One

The chapter explores the notion of “community interests” with regard to the global “land-grab” phenomenon. Over the last decade, a dramatic increase of foreign investment in agricultural land could be observed. Bilateral investment treaties protect around 75 per cent of these large-scale land acquisitions, many of which came with associated social problems, such as displaced local populations and negative consequences for food security in Third World countries receiving these large-scale foreign investments. Hence, two potentially conflicting areas of international law are relevant in this context: Economic, social, and cultural rights and the principles of permanent sovereignty over natural resources and “food sovereignty” challenging large-scale investments on the one hand, and specific norms of international economic law stabilizing them on the other. The contribution discusses the usefulness of the concept of “community interests” in cases where the two colliding sets of norms are both considered to protect such interests.

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