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Bee Pollination in Agricultural Ecosystems

Rosalind James and Theresa L. Pitts-Singer (eds)

Published in print:
2008
Published Online:
September 2008
ISBN:
9780195316957
eISBN:
9780199871575
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195316957.001.0001
Subject:
Biology, Animal Biology, Plant Sciences and Forestry

Bees play a vital role as pollinators for many agricultural crops. This book discusses the interplay between bees, agriculture, and the environment. Although honey bees are well recognized as ... More


GLOBAL PATTERNS

Ernest H. Williams

in The Nature Handbook: A Guide to Observing the Great Outdoors

Published in print:
2005
Published Online:
September 2007
ISBN:
9780195179293
eISBN:
9780199790470
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195179293.003.0014
Subject:
Biology, Natural History and Field Guides

This final chapter presents key observations over broad spatial and temporal scales. The first three are readily observable, at least in the right geographic areas, but the last two — species and ... More


Species Selection, Clade Selection, and Macroevolution

Samir Okasha

in Evolution and the Levels of Selection

Published in print:
2006
Published Online:
January 2007
ISBN:
9780199267972
eISBN:
9780191708275
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199267972.003.0007
Subject:
Philosophy, Philosophy of Science

This chapter examines selection at the level of species and clades. The history of the species selection debate, including its conceptual link to the idea that species are individuals, is outlined. ... More


Human Resilience in the Face of Biodiversity Tipping Points at Local and Regional Scales

Patricia Howard

in Addressing Tipping Points for a Precarious Future

Published in print:
2013
Published Online:
January 2014
ISBN:
9780197265536
eISBN:
9780191760327
Item type:
chapter
Publisher:
British Academy
DOI:
10.5871/bacad/9780197265536.003.0006
Subject:
Political Science, Environmental Politics

Biodiversity and cultural diversity are intertwined. The threats to biodiversity are already observable and are accelerating. The spread of non-native species is an under-examined threat to ... More


Concepts of Niches

A. Townsend Peterson, Jorge Soberón, Richard G. Pearson, Robert P. Anderson, Enrique Martínez-Meyer, Miguel Nakamura, and Miguel Bastos Araújo

in Ecological Niches and Geographic Distributions (MPB-49)

Published in print:
2011
Published Online:
October 2017
ISBN:
9780691136868
eISBN:
9781400840670
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691136868.003.0002
Subject:
Biology, Ecology

This chapter proposes a formal and operational definition of a particular niche concept, introduces approaches for characterizing and measuring it, and uses it as a conceptual and terminological ... More


Ecological Niches and Geographic Distributions (MPB-49)

A. Townsend Peterson, Jorge Soberón, Richard G. Pearson, Robert P. Anderson, Enrique Martínez-Meyer, Miguel Nakamura, and Miguel B. Araújo

Published in print:
2011
Published Online:
October 2017
ISBN:
9780691136868
eISBN:
9781400840670
Item type:
book
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691136868.001.0001
Subject:
Biology, Ecology

This book provides a first synthetic view of an emerging area of ecology and biogeography, linking individual- and population-level processes to geographic distributions and biodiversity patterns. ... More


The Specification of Human Actions in St Thomas Aquinas

Joseph Pilsner

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.001.0001
Subject:
Religion, Theology

Thomas Aquinas believed that human actions have kinds or species. He divided human actions into good, evil, or indifferent, and subdivided them into more particular kinds such as almsgiving, murder, ... More


Referential Function (II)

Maximilian de Gaynesford

in I: The Meaning of the First Person Term

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199287826
eISBN:
9780191603570
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199287821.003.0010
Subject:
Philosophy, Philosophy of Language

I fulfils its referential function in the deictic mode. Deictic terms fulfil their referential role by the action of making an individual salient. That is the genus to which ... More


Reproduction by the Chaste: Parthenogenesis

John C. Avise

in Clonality: The Genetics, Ecology, and Evolution of Sexual Abstinence in Vertebrate Animals

Published in print:
2008
Published Online:
January 2009
ISBN:
9780195369670
eISBN:
9780199871063
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195369670.003.0003
Subject:
Biology, Evolutionary Biology / Genetics

Virgins can indeed give birth, and not only in Greek mythology. In biology, the word partheno appended by genesis (meaning origin) describes the clonal process by which a female procreates without ... More


Population dynamics: modelling demographic Allee effects

Franck Courchamp, Luděk Berec, and Joanna Gascoigne

in Allee Effects in Ecology and Conservation

Published in print:
2008
Published Online:
May 2008
ISBN:
9780198570301
eISBN:
9780191717642
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570301.003.0003
Subject:
Biology, Biodiversity / Conservation Biology

Much of what is known about Allee effects comes from mathematical models. This chapter deals with models of demographic Allee effects. It shows what types of model are available, what their ... More


Conclusion

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0010
Subject:
Religion, Theology

This chapter shows that end, object, matter, circumstance, and motive can all be understood to contribute to the specification of human actions for Aquinas in a fundamentally consistent way. Although ... More


Aristotle's Theory of Form

David Bostock

in Space, Time, Matter, and Form: Essays on Aristotle's Physics

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286867
eISBN:
9780191603532
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286868.003.0005
Subject:
Philosophy, Ancient Philosophy

This essay is a résumé of all the ways in which Aristotle uses his notion of form in books, which one thinks of as ‘preceding’ the Metaphysics (in order of exposition, if not in order of ... More


Introduction

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0001
Subject:
Religion, Theology

A crucial task for any moral theory is to determine what makes a human action to be of a certain kind. For instance, what makes almsgiving to be in its own species rather than in the species of theft ... More


Two Fundamental Types of Specification

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0003
Subject:
Religion, Theology

In order to understand the specification of human action, it is helpful to explore the specification of two other kinds of realities: natural corporeal beings and natural motions. For Aquinas, a ... More


End

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0004
Subject:
Religion, Theology

Aquinas asserts that ends specify human actions, and explains this point by comparing human actions with other realities. For example, he maintains that an end is comparable to a form in a natural ... More


Object

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0005
Subject:
Religion, Theology

Aquinas asserts on many occasions that human actions are specified by their objects. Two meanings he gives to the term ‘object’ are particularly significant. On some occasions, he uses ‘object’ to ... More


Matter

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0006
Subject:
Religion, Theology

Aquinas sometimes says that matter specifies a human action, and frequently uses ‘matter’ as an alternative term for ‘object’. He does not hold that all matter can determine a human action’s species, ... More


Circumstance

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0007
Subject:
Religion, Theology

A circumstance is an attendant property of an action. In murder, for instance, one might take note of the time, the type of weapon, or the perpetrator’s height. Although Aquinas in some contexts ... More


Motive

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0008
Subject:
Religion, Theology

Aquinas says that motives are responsible for the specification of human action. ‘Motive’ can generally refer to any principle of movement, but two meanings are especially significant in the context ... More


Proximate and Remote Ends

Joseph Pilsner

in The Specification of Human Actions in St Thomas Aquinas

Published in print:
2006
Published Online:
May 2006
ISBN:
9780199286058
eISBN:
9780191603808
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199286051.003.0009
Subject:
Religion, Theology

There is an apparent paradox with respect to Aquinas’s teaching on proximate and remote ends. On some occasions, he seems to assert that a proximate end specifies a human action, while the remote end ... More


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