Of the four types of biological control, (1) natural, (2) conservation, (3) augmentation, and (4) importation), ethical concerns have been raised almost exclusively about only one type: importation. These concerns rest largely on fears of extinction of animal species. Importation biological control is a cost-effective alternative to chemical control for basic food crops of resource-poor farmers. Regarding the other types of biological control, natural biological control is not consciously manipulated by humans. Augmentation has some technical concerns, but is generally an (...) environmentally-sound, viable alternative to chemicals and offers local employment. Conservation can help empower farmers to preserve native species, while saving labor and money and reducing chemical insecticides. (shrink)

Integrated pest management (IPM) has been widely promoted in the developing world, but in many regions its adoption rates have been variable. Experience has shown that to ensure IPM adoption, the complexities of local agro-production systems and context-specific folk knowledge need to be appreciated. Our research explored the linkages between farmer knowledge, pest management decision making, and ecological attributes of subsistence maize agriculture. We report a case study from four rural communities in the highlands of southeast Honduras. Communities were typified (...) by their agro-environments, IPM training history, and levels of infestation by a key maize pest, the fall armyworm (Spodoptera frugiperda Smith). Although variable, infestation levels generally did not justify pest management intervention. Consequently, crop losses from this pest were considered of low importance and most farmers proceeded in a rational fashion by refraining from action in their fields. Farmers attributed the low degree of pest infestation predominantly to abiotic causal factors (rainfall, temperature). The role of natural enemies in controlling this pest (i.e., biological control) was deemed of low importance by farmers; nevertheless, a broad array of such organisms was mentioned by farmers as operating in their maize crop. Farmers’ knowledge of natural enemies only partially matched scientific knowledge and was associated with the ecological features of their respective field settings. Local knowledge about natural enemies was mainly restricted to abundant and easily observable predatory species. Farmers who were knowledgeable about biological control were also familiar with a larger variety of pest management alternatives than uninformed farmers. Management options covered a wide range of curative techniques, including conservation biological control. Farmers who relied on insecticides to manage pest outbreaks knew less about biological control and pesticide alternatives. In contrast, farmers who received IPM training mentioned more types of natural enemies and were familiar with a broader range of alternative pest management tactics. Our research suggests that IPM training modifies local knowledge to better fit its environmental context. This paper provides insights in the environmental context of local agro-ecological knowledge and its linkage with pest management decision making. It also constitutes a basis for modifying IPM extension programs to deliver locality-specific technologies while strengthening the local knowledge base. (shrink)

‘The Natural System’ is the abstract notion of the order in living diversity. The richness and complexity of this notion is revealed by the diversity of representations of the Natural System drawn by ornithologists in the Nineteenth Century. These representations varied in overall form from stars, to circles, to maps, to evolutionary trees and cross-sections through trees. They differed in their depiction of affinity, analogy, continuity, directionality, symmetry, reticulation and branching, evolution, and morphological convergence and divergence. Some representations were two-dimensional, (...) and some were three-dimensional; n-dimensional representations were discussed but never illustrated. The study of diagrammatic representations of the Natural System is made difficult by the frequent failure of authors to discuss them in their texts, and by the consequent problem of distinguishing features which carried meaning from arbitrary features and printing conventions which did not. Many of the systematics controversies of the last thirty years have their roots in the conceptual problems which surrounded the Natural System in the late 1800s, problems which were left unresolved when interest in higher-level systematics declined at the turn of this century. (shrink)

Accounts of the evolutionary past have as much in common with works of narrative history as they do with works of science. Awareness of the narrative character of evolutionary writing leads to the discovery of a host of fascinating and hitherto unrecognized problems in the representation of evolutionary history, problems associated with the writing of narrative. These problems include selective attention, narrative perspective, foregrounding and backgrounding, differential resolution, and the establishment of a canon of important events. The narrative aspects of (...) evolutionary writing, however, which promote linearity and cohesiveness in conventional stories, conflict with the underlying chronicle of evolution, which is not linear, but branched, and which does not cohere, but diverges. The impulse to narrate is so great, however, and is so strongly reinforced by traditional schemes of taxonomic attention, that natural historians have more often abandoned the diverging tree than they have abandoned the narrative mode of representation. If we are to understand the true nature of the evolutionary past then we must adopt “tree thinking”, and develop new and creative ways, both narrative and non-narrative, of telling the history of life. (shrink)

Today''s headlines suggest that economic criteria alone is the basis for business decision-making. This paper argues that while profitability is a legitimate end of business, it must be moderated by ethical considerations. But can business be both successfuland ethical? Practical examples highlight individuals who chose profitability over ethical responsibility and those who chose and continue to choose both. The authors propose that there is an ethical person profile. Corporate managers can resolve the profits vs ethics dilemma by modeling ethical behavior.

In the last number of years scholars have discovered many new “parallels”2 to Francis of Assisi’s Admonitions.3 In this article I will provide more new parallels that I have uncovered not only in ecclesiastical contexts, but also in non-ecclesiastical ones.4 While almost all students of Francis’ Admonitions are acquainted with the general ecclesiastical contexts, most are unfamiliar with the non-ecclesiastical contexts evidenced by Cato’s Distichs, Daniel of Beccles’ Urbanus Magnus, Egbert of Liège’s The Well-Laden Ship, the Facetus, and a fourteen-volume (...) collection of medieval proverbs. From these parallels I will argue that the Admonitions of Francis of Assisi belong to the literary genre of Conduct Literature... (shrink)

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...) preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

This question takes us to the very center of the cooperation of the human powers in the act of choice. If prudence is wanting, that act of dominion is neither truly human nor truly praiseworthy. Unless there can be truly praiseworthy human excellence in the absence of love the answer to our question ought to be affirmative. Surely the affirmative answer is favored by I Cor. 13:13 and John 14:23. Is the dominion then still human? A negative answer to the (...) question of our title is favored by what seems an Aristotelian firmness. Prudence, then, with that negative answer is nothing but knowledge? Yet Thomas Aquinas says in a very simple text: “love moves within prudential actuality”. These words in answer to the question of our title invite their metaphysical exegesis by penetrating causal relations within the prudential judgment. (shrink)

A significant amount of discussion in the bioethics community has been devoted to the question of whether individuals performing ethics consultations in healthcare institutions have any special expertise. In addition, articles in the lay press have questioned the “added value” that bioethicists bring to ethical dilemmas. Those at the forefront of the bioethics community have argued repeatedly that those doing ethics consults cannot simply be well-intentioned individuals, that some training in bioethics, group process, and facilitation is necessary to competently execute (...) a consult. As one bioethicist commented:if you approach any endeavor as an amateur activity, you will get, in the end, an amateurish version of the activity. Without a sufficient commitment of personnel, time, support, and financial resources, a healthcare organization will get the ‘ethics’ program … it set out to create: an inept, unskilled, inefficient, and highly risky ‘program’ in healthcare ethics and bioethics. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Place of the Money Bag in the Secular-Mendicant Controversy at ParisRobert J. Karris O.F.M. (bio)Money bag, money bag. So many Bible-reading Christians don't know of your existence. In their defense I note that you are only mentioned twice in the entire New Testament: John 12:6 and 13:29. If faithful Bible-reading Christians don't know of your existence, what is your fate among the faithful who are less than faithful?! (...) Is ignorance truly bliss?New Testament ScholarsMoney bag, money bag. Perhaps, New Testament scholars are the reason why you are almost unknown among Christians.1 Commentators on John's Gospel give you a passing notice, if that.2 Even when they make mention of you, they [End Page 21] generally don't integrate your existence with other features of John's theology or life situation.3 As for the Jesus Seminar, its members sweep you into the dustbin of history along with 99.9% of John's Gospel.4 You see, you are deemed unhistorical. A couple of scholars involved in the quest for the historical Jesus say "Hi!" to you, but then go on with more important matters.5 Other scholars involved in the application [End Page 22] of social science methodology to the study of the New Testament opine that you were kept as a security measure and contained money to pay for the annual temple tax and such like obligations, but then they hold their peace.6Money bag, money bag. Scholars who have investigated the theme of rich and poor in the New Testament hardly give [End Page 23] you a second glance. You do not play a leading role in their general conclusions.7So, money bag, we have to take leave of New Testament scholarship if we are going to make your acquaintance on a serious level.The Middle AgesFrancis of AssisiAs we move into the Middle Ages, we ask: Did St. Francis of Assisi provide us with guidance on how to treat you with the respect that you, O money bag, so richly deserve? You see, some scholars maintain that John's Gospel was most important to Francis's worldview.8 However, Francis doesn't seem to see the problem you created for his all-consuming embrace of Jesus' missionary command of traveling with no money.9 [End Page 24] Surely Francis knows of your existence, for he refers to you in his Fourth Admonition n. 3:And the more they (superiors) are perturbed about their superiorship being taken from them than they would be over the loss of the office of washing feet, so much the more do they collect for themselves a money bag (John 12:6; 13:29) to the peril of their souls.10Francis is heir to a Benedictine spiritualization of the money bag. See how Roger the Abbot in his Sermo in ultima cena employs the money bag:Woe, how many money bags, woe, how many purses are in the monasteries of St. Benedict! Woe, how many cowls, which cover the ears of the tonsured, enclose private supplies of the mind, the money bag of one's own will, the purse of murmuring, detraction, idleness, pride, envy, jealousy, and bad will! But remember, most beloved brothers, that those who do such things follow Judas the traitor. And therefore, unless you amend your lives, you will not possess the kingdom of God.11O money bag, so Francis goes his merry way, apparently ignorant of your true meaning and leaves the problems created by your existence to his learned followers such as Bonaventure of Bagnoregio. To Bonaventure we now turn, but do so through his responses to his secular opponents, William of Saint-Amour and Gerard of Abbeville. First let's hear from the secular masters. [End Page 25]William of Saint-Amour and Gerard of AbbevilleWilliam of Saint-Amour comments on John 12:6 and argues that it does not permit begging and is the basis for the normative view that the apostles and their successors should have a money bag. He writes:Augustine, 'the Lord had a purse to keep the offerings... (shrink)

The period after the repulse of Xerxes' invasion is one of the more obscure in Greek history, and this is particularly true of the eclipse of Themistokles and the history of the Peloponnese in the seventies and sixties. On the period of Themistokles' ostracism before the flight which led him to Persia Thucydides says only that he was ostracized and lived at Argos while also travelling to the rest of the Peloponnese. Other writers add a few details to Thucydides' account (...) on other aspects of the ostracism, but tell us even less on the sojourn in Argos. Diodoros and Plutarch merely tell us that he lived there in exile while Nepos informs us that Themistokles' virtuous and dignified life in Argos aroused resentment. Now Themistokles did not remain inactive in exile. The Spartans had some good reason to wish to remove him from Argos. The activities which aroused the Spartans' distrust are probably referred to by Thucydides' remark that Themistokles journeyed to the rest of the Peloponnese. It is usually concluded that Themistokles was involved in the creation of an anti-Spartan coalition and that a major part of this policy may have been the establishment of democratic governments in and the synoecism of the cities of Elis and Mantineia. But we lack any clear evidence on Themistokles' actions in this period and the hypothesis rests principally on deductions from two brief passages. The first is from Herodotos and records that in 479 b.c. the Mantineian and Eleian contingents arrived too late to take part in the battle of Plataia and on their return both cities banished their commanders. (shrink)

First published in 2002. Routledge is an imprint of Taylor & Francis, an informa company.

The species problem is one of the oldest controversies in natural history. Its persistence suggests that it is something more than a problem of fact or definition. Considerable light is shed on the species problem when it is viewed as a problem in the representation of the natural system (sensu Griffiths, 1974, Acta Biotheor. 23: 85–131; de Queiroz, 1998, Philos. Sci. 55: 238–259). Just as maps are representations of the earth, and are subject to what is called cartographic generalization, so (...) diagrams of the natural system (evolutionary trees) are representations of the evolutionary chronicle, and are subject to a temporal version of cartographic generalization which may be termed systematic generalization. Cartographic generalization is based on judgements of geographical importance, and systematic generalization is based on judgements of historical importance, judgements expressed in narrative sentences (sensu Danto, 1985, Narration and knowledge, Columbia Univ. Press, New York). At higher systematic levels these narrative sentences are conventional and retrospective, but near the "species" level they become prospective, that is, dependent upon expectations of the future. The truth of prospective narrative sentences is logically indeterminable in the present, and since all the common species concepts depend upon prospective narration, it is impossible for any of them to be applied with precision. (shrink)

Classifications of animals and plants have long been represented by hierarchical lists of taxa, but occasional authors have drawn diagrammatic versions of their classifications in an attempt to better depict the "natural relationships" of their organisms. Ornithologists in 19th-century Britain produced and pioneered many types of classificatory diagrams, and these fall into three groups: (a) the quinarian systems of Vigors and Swainson (1820s and 1830s); (b) the "maps" of Strickland and Wallace (1840s and 1850s); and (c) the evolutionary diagrams of (...) the post-Darwin authors (1860 on). The quinarians distinguished between affinity and analogy and used both in their classifications, whereas Strickland rejected the quinarians' belief in numerical regularity and their use of analogy. Wallace's "maps" are easily given an evolutionary interpretation, and his approach was taken up and modified by later evolutionary anatomists. Sharpe returned to Strickland's methods and merely appended a superficial evolutionary interpretation. Contrary to common belief systematics has a rich conceptual history, and many of the conceptual developments in 19th-century systematics were made by ornithologists. (shrink)

"The Natural System" is the name given to the underlying arrangement present in the diversity of life. Unlike a classification, which is made up of classes and members, a system or arrangement is an integrated whole made up of connected parts. In the pre-evolutionary period a variety of forms were proposed for the Natural System, including maps, circles, stars, and abstract multidimensional objects. The trees sketched by Darwin in the 1830s should probably be considered the first genuine evolutionary diagrams of (...) the Natural System—the first genuine evolutionary trees. Darwin refined his image of the Natural System in the well-known evolutionary tree published in the Origin of Species, where he also carefully distinguished between arrangements and classifications. Following the publication of the Origin, there was a great burst of evolutionary tree building, but interest in trees declined substantially after 1900, only to be revived in recent years with the development of cladistic analysis. ¶ While evolutionary trees are modern diagrams of the Natural System, they are at the same time instances of another broad class of diagrams that may be called "trees of history": branching diagrams of genealogical descent and change. During the same years that Darwin was sketching his first evolutionary trees, the earliest examples of two other trees of history also appeared: the first trees of language evolution and of manuscript genealogy. Though these were apparently independent of evolutionary trees in their origin, the similarities among all these trees of history, and among the historical processes that underlie them, were soon recognized. Darwin compared biological evolution and language evolution several times in the Origin of Species, and both Ernst Haeckel and the linguist August Schleicher made similar comparisons. Both linguists and stemmaticists (students of manuscript descent) understood the principle of apomorphy—the principle that only shared innovations provide evidence of common ancestry—more clearly than did systematists, and if there had been more cross-fertilization among these fields the cladistic revolution in systematics might well have taken place in the nineteenth century. ¶ Although historical linguists and stemmaticists have in some respects had sounder theory than have systematists, at least until recently, they have also had the practical problem of very large amounts of data, a problem not often faced by systematists until the advent of molecular sequencing. The opportunity now exists for systematists to contribute to the theory and practice of linguistics and stemmatics, their sister disciplines in historical reconstruction, through application of our commonly used computer programs for tree estimation. Preliminary results from the application of numerical cladistic analysis to a large stemmatic data set have been very encouraging, and have already generated much discussion in the stemmatics community. (shrink)