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  • Biodiversity  (2)
  • Methods  (2)
  • Springer  (4)
  • American Chemical Society (ACS)
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  • Springer  (4)
  • American Chemical Society (ACS)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Agriculture and human values 16 (1999), S. 365-379 
    ISSN: 1572-8366
    Keywords: Biodiversity ; Human ecology ; Anthropocentrism ; Native ; Biophilia ; Arational values ; Place
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Agriculture has been recently viewed as the primary destructive force of biodiversity, but the places that produce our food and fiber may also hold the key to saving the richness of life on earth. This argument is based on three fundamental positions. First, it is argued that to value and thereby preserve and restore biodiversity we must begin by employing anthropocentric ethics. While changing our understanding of intrinsic values (i.e., the unconditional values of biodiversity as a state and process in-and-of-itself, without reference to human interests) is often advocated as the means by which our behavior will reflect the importance of biodiversity, a change in how we perceive and conditionally value biodiversity is proposed as a more effective and compelling approach. Second, I suggest that anthropocentric values can be linked to a sense of “Place,” with agriculture playing a vital role in this context. Agriculture forms a powerful basis for personal, experiential development of a profound meaning and connection to a setting or landscape. The agricultural setting has tremendous potential for arational (emotional, aesthetic, and spiritual) values that ultimately compel our actions. The constancy of relationship and mutuality of dependency between humans and agricultural lands, particularly extensive agroecosystems, fosters an intensity of association that transcends our recent affinity to wildlands. Third, a mature understanding of places and their biodiversity must include those organisms that account for many of the ecological processes and the majority of the species richness -- the insects. The importance of these insects in structuring the landscape and the effects of habitat destruction on these organisms both suggest a vital, intimate, and reciprocal link between insects and Places. Finally, it is argued that the most important avenue for future efforts to protect and restore biodiversity on the part of agricultural and other scientists is educational -- the presentation of our research to the public in terms that provoke emotional, aesthetic, and spiritual meaning which lies at the core of human values and actions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Primates 28 (1987), S. 71-77 
    ISSN: 0032-8332
    Keywords: Diet ; Feeding time ; Amount ingested ; Methods ; Gross-species comparison
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Feeding niche constitutes one of the most basic ecological parameters defining any species. Unfortunately, our picture of primate feeding niches is suspect because field workers have used a variety of observational techniques to assess diet in the wild. Here the question of the comparability of these techniques is explored empirically, by comparing the dietary profiles of a small group of primate species that have been studied by two methods in a single locality. These methods are shown to yield quite different results, both in the realm of simple description, and in the realm of behavioral-ecological hypothesis testing.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0032-8332
    Keywords: Primates ; Jarman-Bell principle ; Methods ; Cross-species comparison ; Feeding strategy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The feeding niche and the body size of any species are fundamental parameters that constrain the evolution of many other phenotypic characters. Moreover, previous work has shown that body size and diet are correlated, as a consequence of the negative allometry of metabolic rate. Unfortunately, the precise form of the association between body size and diet has never been specified, principally because no suitable cross-species measure of diet has been advanced. Here we develop a measure of diet that is sensitive over the whole spectrum of primate feeding niches, and use this measure to define the relationship between body size and diet for a sample of 72 primate species. Subsequently, we present several examples of how behavioral and ecological hypotheses can be tested by examining the extent to which particular species deviate from the general diet-body size pattern.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Biodiversity and conservation 3 (1994), S. 3-20 
    ISSN: 1572-9710
    Keywords: Biodiversity ; history ; forests ; conservation ; cycles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The biodiversity of forested regions today is the result of complex historical interactions among physical, biological, and social forces over time, often heavily influenced by cycles of various sorts. Fire, agriculture technology, and trade have been particularly powerful human influences on forests. Virtually all of our planet's forests have been affected by the cultural patterns of human use, and the resulting landscape is an ever-changing mosaic of unmanaged and managed patches of habitat, which vary in size, shape, and arrangement. Because chance factors, human influence and small climatic variation can cause very substantial changes in vegetation, the biodiversity for any given landscape will vary substantially over any significant time period- and no one variant is necessarily more ‘natural’ than the others. This implies that biodiversity conservation efforts may need to give greater attention to ecosystem processes than to ecosystem products. A review of historical evidence shows that past civilizations have tended to over-exploit their forests, and that such abuse of important resources has been a significant factor in the decline of the over-exploiting society. It appears that the best way to maintain biodiversity in forest ecosystems in the late 20th Century is through a combination of strictly protected areas (carefully selected on the basis of clearly defined criteria), multiple-use areas managed by local people, natural forests extensively managed for sustainable yield of logs and other products and services, and forest plantations intensively managed for the wood products needed by society. This diversity of approaches and uses will provide humanity with the widest range of options, the greatest diversity of opportunities, for adapting to the cyclical changes which are certain to continue.
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