• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 9983
  • 1816
  • 1157
  • 815
  • 372
  • 293
  • 293
  • 293
  • 293
  • 293
  • 289
  • 259
  • 227
  • 181
  • 153
  • Tagged with
  • 20616
  • 4422
  • 2836
  • 2346
  • 1732
  • 1526
  • 1487
  • 1456
  • 1397
  • 1324
  • 1305
  • 1148
  • 1029
  • 946
  • 914
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Direct and indirect ecological effects of Dreissenid mussels (the zebra mussel Dreissena polymorpha and the quagga mussel D. bugensis) on submerged macrophytes in North American lakes

Zhu, Bin. January 2006 (has links)
Thesis (PH.D.) -- Syracuse University, 2006 / "Publication number AAT 3251826."
92

Effects of Dam Removal on Fish Communities and Habitat in the Sandusky River, Ohio

Sasak, Taylor Elaine January 2021 (has links)
No description available.
93

The Influence of Ice Cover on the Coupling between Lake Erie Larval Walleye and their Prey

Huddleston, Amara Lynn 18 December 2018 (has links)
No description available.
94

ECOLOGICAL SPECIATION IN A MULTI-TROPHIC COMPLEX: GALL MIDGES, GOLDENRODS, AND PARASITOIDS

Wells, Brenda L. 22 November 2010 (has links)
No description available.
95

Determining the Habitat Limitations of Maumee River Walleye Production to Western Lake Erie Fish Stocks.

Schmidt, Brian A. January 2016 (has links)
No description available.
96

Mens en natuur 'n bronnestudie oor die Bybelse en na-Bybelse perspektiewe /

Smit, Gerrit Daniel Stephanus. January 2003 (has links)
Thesis (MA(Antieke Tale)--Universiteit van Pretoria, 2003. / Includes bibliographical references (p. [200]-219).
97

Cuddly koalas, themepark thylacines, dinosaur trees and the fire ants from hell

Bagust, Phil. Unknown Date (has links)
All this has implications for achieving environmental sustainability in a 'real' biosphere that still supplies the 'ecosystem services' that allow humans, and the rest of the biomass, to actually survive (at the same time that its custodians of mind-us- are 'escaping' into customised neo-worlds). This thesis makes some preliminary enquiries into these new logics, the new 'selectors' at work in human meaning making ecosystems that owe little to those produced by billions of years of 'natural selection'. What seems to be at work at present is an enormously accelerated 'cultural selection' of winners and losers in the 'real' and 'imaginary' world. It would be unwise for the modernist systems of thought that still inform many of our institutional responses to the biosphere to ignore the pre-eminent affect of these cultural processes and the strange and possibly disturbing (at least to the ecosystemic biological purists) new 'weedy' entertainment-ecosystems that might arise from their deployment. / This thesis reviews some aspects of these 'new selectors' at work and begins to chart- with an Australian focus- the tentative development of institutional/legal responses and emergent socialites that acknowledge and even leverage, these new forces. It finally suggests a radical set of possibilities, which if they came to pass, would signal the end to the kind of 'public reservationism' that has characterised the 20th century response to nature, wilderness and the 'environmental crisis', and usher in a more chaotic (but still possibly sustainable) era of 'winners' and 'losers' mediated by new social selectors of post-consumption voluntary affiliation. / The 20th century will be remembered for many 'firsts' and many 'revolutions'. One of these 'revolutions' was the process whereby issues surrounding 'nature', the non-human organisms that inhabit it, the human relationship to these organisms, and the human impact on the planet as a whole, came to occupy such a considerable amount of our individual and collective 'attention space' as the century progressed. In a nutshell, over the course of the 20th century 'the environment' became a 'thing' that almost everyone recognised, and which became associated with a wide range of qualities, dreams and fears that impacted, to varying degrees, on almost every human meaning-making system and institution. / 'Environmentalism' has largely been a product of enlightenment, modernist thinking. From the romantic philosophers, poets and travellers of the 18th and 19th century, to the founders of the ecological sciences, to the eco-activists and 'green' political parties of the 20th century, a whole series of intertwining enlightenment systems of thought and practice have informed its discourses and narratives. The logics of these discourses are all around us in our newly networked global mediasphere- at work in environmental organisations, informing government policy- and they form the basis of the environmental story telling that have made green issues so prominent in the media in the last several decades. / Thesis (PhDSoSc(Communic,InformatStud))--University of South Australia, 2005.
98

Cuddly koalas, themepark thylacines, dinosaur trees and the fire ants from hell /

Bagust, Phil. Unknown Date (has links)
The 20th century will be remembered for many ‘firsts’ and many ‘revolutions’. One of these ‘revolutions’ was the process whereby issues surrounding ‘nature’, the non-human organisms that inhabit it, the human relationship to these organisms, and the human impact on the planet as a whole, came to occupy such a considerable amount of our individual and collective ‘attention space’ as the century progressed. In a nutshell, over the course of the 20th century ‘the environment’ became a ‘thing’ that almost everyone recognised, and which became associated with a wide range of qualities, dreams and fears that impacted, to varying degrees, on almost every human meaning-making system and institution. / ‘Environmentalism’ has largely been a product of enlightenment, modernist thinking. From the romantic philosophers, poets and travellers of the 18th and 19th century, to the founders of the ecological sciences, to the eco-activists and ‘green’ political parties of the 20th century, a whole series of intertwining enlightenment systems of thought and practice have informed its discourses and narratives. The logics of these discourses are all around us in our newly networked global mediasphere- at work in environmental organisations, informing government policy- and they form the basis of the environmental story telling that have made green issues so prominent in the media in the last several decades. / All this has implications for achieving environmental sustainability in a ‘real’ biosphere that still supplies the ‘ecosystem services’ that allow humans, and the rest of the biomass, to actually survive (at the same time that its custodians of mind-us- are ‘escaping’ into customised neo-worlds). This thesis makes some preliminary enquiries into these new logics, the new ‘selectors’ at work in human meaning making ecosystems that owe little to those produced by billions of years of ‘natural selection’. What seems to be at work at present is an enormously accelerated ‘cultural selection’ of winners and losers in the ‘real’ and ‘imaginary’ world. It would be unwise for the modernist systems of thought that still inform many of our institutional responses to the biosphere to ignore the pre-eminent affect of these cultural processes and the strange and possibly disturbing (at least to the ecosystemic biological purists) new ‘weedy’ entertainment-ecosystems that might arise from their deployment. / This thesis reviews some aspects of these ‘new selectors’ at work and begins to chart- with an Australian focus- the tentative development of institutional/legal responses and emergent socialites that acknowledge and even leverage, these new forces. It finally suggests a radical set of possibilities, which if they came to pass, would signal the end to the kind of ‘public reservationism’ that has characterised the 20th century response to nature, wilderness and the ‘environmental crisis’, and usher in a more chaotic (but still possibly sustainable) era of ‘winners’ and ‘losers’ mediated by new social selectors of post-consumption voluntary affiliation. / Thesis (PhDSoSc(Communic,InformatStud))--University of South Australia, 2005.
99

Cuddly koalas, themepark thylacines, dinosaur trees and the fire ants from hell

Bagust, Philip January 2005 (has links)
The 20th century will be remembered for many "firsts" and many 'revolutions'. One of these 'revolutions' was the process whereby issues surrounding 'nature', the non-human organisms that inhabit it, the human relationship to these organisms, and the human impact on the planet as a whole, came to occupy such a considerable amount of our individual and collective 'attention space' as the century progressed. In a nutshell, over the course of the 20th century 'the environment' became a 'thing' that almost everyone recognised, and which became associated with a wide range of qualities, dreams and fears that impacted, to varying degrees, on almost every human meaning-making system and institution. 'Environmentalism' has largely been a product of enlightenment, modernist thinking. From the romantic philosophers, poets and travellers of the 18th and 19th century, to the founders of the ecological sciences, to the eco-activists and 'green' political parties of the 20th century, a whole series of intertwining enlightenment systems of thought and practice have informed its discourses and narratives. The logics of these discourses are all around us in our newly networked global mediasphere at work in environmental organisations, informing government policy and they form the basis of the environmental story telling that have made green issues so prominent in the media in the last several decades. All this has implications for achieving environmental sustainability in a real biosphere that still supplies the 'ecosystem services' that allow humans, and the rest of the biomass, to actually survive (at the same time that its custodians of mind-us- are 'escaping' into customised neo-worlds). This thesis makes some preliminary enquiries into these new logics, the new 'selectors' at work in human meaning making ecosystems that owe little to those produced by billions of years of 'natural selection'. What seems to be at work at present is an enormously accelerated 'cultural selection' of winners and losers in the real and imaginary world. It would be unwise for the modernist systems of thought that still inform many of our institutional responses to the biosphere to ignore the pre-eminent affect of these cultural processes and the strange and possibly disturbing (at least to the ecosystemic biological purists) new weedy entertainment-ecosystems that might arise from their deployment. This thesis reviews some aspects of these 'new selectors' at work and begins to chart- with an Australian focus- the tentative development of institutional/legal responses and emergent socialites that acknowledge and even leverage, these new forces. It finally suggests a radical set of possibilities, which if they came to pass, would signal the end to the kind of 'public reservationism' that has characterised the 20th century response to nature, wilderness and the 'environmental crisis', and usher in a more chaotic (but still possibly sustainable) era of 'winners' and 'losers' mediated by new social selectors of post-consumption voluntary affiliation.
100

Trophic structure and the importance of terrestrial wetland producers for aquatic food webs in tropical Australian estuaries /

Abrantes, Kátya Gisela dos Santos. January 2008 (has links)
Thesis (Ph.D.) - James Cook University, 2008. / Typescript (photocopy) Bibliography: leaves 198-218.

Page generated in 0.065 seconds