subject:(species boundaries)

Boise State University

1. Ottenlips, Michael. Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae).

Degree: 2019, Boise State University

URL: https://scholarworks.boisestate.edu/td/1552

► Speciation is a complex and ongoing process caused by a variety of forces; this has in part led to a proliferation of species concepts ranging… (more)

▼ Speciation is a complex and ongoing process caused by a variety of forces; this has in part led to a proliferation of species concepts ranging from arbitrary similarity-based concepts such as the morphological species concept to ancestry-based concepts that incorporate the complex nature of gene inheritance. Ancestry-based concepts rely on homologous characters, either molecular or morphological, that share a common origin in order to draw inferences about evolutionary histories and help understand species boundaries. Convergence in morphology and paralogous loci in molecular datasets can cause confusion in understanding if characters are functionally homologous. Other challenges in inferring species boundaries and phylogenies include hybridization, incomplete lineage sorting, and species with a high degree of phenotypic plasticity. Species boundaries and phylogenies complicated by the previously mentioned factors can be understood more readily by incorporating molecular data and associated phylogenetic analysis. The Perennial Endemic North American clade of Apiaceae (PENA) is one of the largest and least understood plant radiations in Western North America. Lomatium is the largest genera in PENA and as traditionally defined is paraphyletic with many cases of homoplasy and morphological convergence. Species boundaries, evolutionary relationships, and field identification are notoriously difficult in this genus. This research proposes to use molecular, morphological, and ecological data sources to investigate species boundaries and evolutionary relationships in two groups within PENA: three alpine endemics found within the Wallowa and Elkhorn Mountains of eastern Oregon (Lomatium greenmanii, Lomatium erythrocarpum, and Lomatium oreganum) and the Lomatium packardiae/anomalum subcomplex of the larger Lomatium triternatum complex found throughout the inland Northwest, intermountain West, and Northern Rocky Mountains. Convergent evolution is a common phenomenon among alpine plants due to the extreme selective pressures of the environment and the limited number of successful plant body designs that can withstand this environment. In two isolated mountain ranges in eastern Oregon, three morphological similar alpine endemic Lomatium exist; these similarities in geographic distribution, habitat preference, and morphology can be ascribed to either shared ancestry or convergent evolution. Previous studies based on limited morphological and molecular data suggested that shared ancestry was the cause of similarities in at least two of these lineages (L. greenmanii and L. oreganum). In the present study, newly sequenced samples of L. oreganum L. greenmanii and L. erythrocarpum are included in a phylogeny based on Sanger-sequence data (five plastid markers and two nuclear ribosomal) of the greater PENA clade including about ~200 samples spread across ~70 taxa. Each alpine Lomatium occupies a different phylogenetic position indicating that convergence and not shared ancestry is the major force influencing the evolution of similar…

Subjects/Keywords: Lomatium; Apiaceae; species boundaries; coalescent theory; Botany

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ottenlips, M. (2019). Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae). (Thesis). Boise State University. Retrieved from https://scholarworks.boisestate.edu/td/1552

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ottenlips, Michael. “Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae).” 2019. Thesis, Boise State University. Accessed March 07, 2021. https://scholarworks.boisestate.edu/td/1552.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ottenlips, Michael. “Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae).” 2019. Web. 07 Mar 2021.

Vancouver:

Ottenlips M. Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae). [Internet] [Thesis]. Boise State University; 2019. [cited 2021 Mar 07]. Available from: https://scholarworks.boisestate.edu/td/1552.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ottenlips M. Convergent Evolution and Species Boundaries in Lomatium Species (Apiaceae). [Thesis]. Boise State University; 2019. Available from: https://scholarworks.boisestate.edu/td/1552

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Cunha, Amanda Ferreira. O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares.

Degree: Mestrado, Zoologia, 2011, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-23012012-125021/ ;

►

Dentre os representantes de Campanulariidae, o gênero Orthopyxis é conhecido pela ampla plasticidade morfológica de suas espécies, bem como pela semelhança com o gênero Campanularia.… (more)

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Dentre os representantes de Campanulariidae, o gênero Orthopyxis é conhecido pela ampla plasticidade morfológica de suas espécies, bem como pela semelhança com o gênero Campanularia. Essas características levaram à descrição de muitas espécies nominais no Atlântico sul-ocidental e confusões com o gênero Campanularia, dificultando a identificação das espécies. Nesse contexto, este estudo teve os objetivos de (1) rever as ocorrências de Orthopyxis no Atlântico sul-ocidental, (2) compreender a variação morfológica intra-específica de Orthopyxis e delimitar suas espécies por meio de estudo morfométrico e molecular, e (3) compreender as relações entre os gêneros Orthopyxis e Campanularia no Atlântico sul-ocidental, levantando evidências morfológicas e moleculares que pudessem delimitá-los. A análise das sequências de DNA resultou no monofiletismo do gênero Orthopyxis e na delimitação das espécies O. sargassicola, O. integra e O. crenata, esta última um novo registro para o Atlântico sul-ocidental. As análises morfológicas permitiram identificar os caracteres informativos para a delimitação dessas linhagens, bem como a amplitude de variação dos caracteres morfológicos frequentemente utilizados para diagnose das espécies de Orthopyxis. Esse estudo aponta evidências morfológicas informativas para a delimitação dos gêneros, principalmente em relação ao cnidoma. O presente estudo do gênero Orthopyxis no Atlântico sul-ocidental poderá servir como modelo para o delineamento de outras pesquisas envolvendo a família Campanulariidae, ao mostrar que as espécies podem ser corretamente delimitadas a partir de análises morfológicas e moleculares.

Within the Campanulariidae, the genus Orthopyxis is known for its morphological plasticity and resemblance with the genus Campanularia. These characteristics have led to the description of numerous nominal species in the southwestern Atlantic, and also to considerable confusion with the genus Campanularia, making taxonomic identification very difficult. In this context, the goal of this study was to (1) review the occurrences of Orthopyxis in the southwestern Atlantic, (2) understand its intraspecific morphological variation and delimit species using morphological and molecular data, and (3) investigate the relationships between Orthopyxis and Campanularia to find morphological and molecular evidence for their delimitation. The molecular analyses resulted in a monophyletic Orthopyxis, and in the delimitation of O. sargassicola, O. integra, and O. crenata, the latter a new record for the southwestern Atlantic. The morphological analyses identified the characters that are most informative for the delimitation of these lineages, as well as the amplitude of morphological variation within the characters frequently used in the taxonomy of Orthopyxis.This study identified some morphological evidence for the delimitation of both genera, especially in relation to the cnidae. The present study of the genus Orthopyxis in the southwestern Atlantic can be used as a model for the delineation of future…

Advisors/Committee Members: Marques, Antonio Carlos.

Subjects/Keywords: Limites interespecíficos; Morphological variation; Orthopyxis; Orthopyxis; Species boundaries; Variação morfológica

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APA (6^th Edition):

Cunha, A. F. (2011). O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/41/41133/tde-23012012-125021/ ;

Chicago Manual of Style (16^th Edition):

Cunha, Amanda Ferreira. “O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares.” 2011. Masters Thesis, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-23012012-125021/ ;.

MLA Handbook (7^th Edition):

Cunha, Amanda Ferreira. “O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares.” 2011. Web. 07 Mar 2021.

Vancouver:

Cunha AF. O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-23012012-125021/ ;.

Council of Science Editors:

Cunha AF. O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/41/41133/tde-23012012-125021/ ;

University of Illinois – Chicago

3. McCarthy, Diane. Systematics and Phylogeography of the Genus Tilia in North America.

Degree: 2012, University of Illinois – Chicago

URL: http://hdl.handle.net/10027/9498

► Tilia americana, American basswood, is a species of tree found in mesic forests throughout eastern North America and the cloud forests of Mexico. Despite being… (more)

▼ Tilia americana, American basswood, is a species of tree found in mesic forests throughout eastern North America and the cloud forests of Mexico. Despite being common and widespread, little is known about basswood’s evolutionary and geographic history. In this study, the phylogeny and phylogeography of basswood were investigated using chloroplast DNA sequences, morphological measurements, and species distribution modeling. The North American basswoods were found to be a monophyletic group containing two distinct clades, one primarily in the United States and one primarily in Mexico. The majority of the genetic diversity resides within the United States, particularly in the southern Appalachian region. Diversity is reduced in the northern latitudes, a pattern consistent with post-glacial range expansion. Diversity is also low within Mexico. The most frequent haplotypes in Mexico appear to be closely related to populations in the southern Appalachians and Piedmont region, suggesting a U.S. origin for those Mexican populations. Other Mexican haplotypes are closely related to Texas populations; the Mexican distribution of basswood might therefore be the result of two independent colonizations by U.S. trees. Historically, the U.S. basswoods have been subdivided into three or more species based on morphological characters. In this study, such subdivisions are not supported by the presence of genetic lineages, and while there are regional differences in morphology, it is impossible to unambiguously delineate species within the U.S. On the other hand, despite the presence of a genetic division between the U.S. and Mexico, the basswood trees of the two countries cannot be distinguished based on morphology. Using a species distribution modeling approach, the U.S. and Mexico lineages can, however, be distinguished based on their ecological tolerances and geographic isolation. Using a combination of DNA sequences and ecological evidence, it is concluded that Tilia americana could be separated into two species, one in the U.S. and one in Mexico. Advisors/Committee Members: Mason-Gamer, Roberta J. (advisor), Ashley, Mary (committee member), Plotnick, Roy (committee member), Dunn, Christopher (committee member), Ree, Richard (committee member).

Subjects/Keywords: Tilia americana; Malvaceae; systematics; phylogeny; phylogeography; ecological niche modeling; species distribution modeling; trees; morphology; species boundaries; speciation; evolution

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McCarthy, D. (2012). Systematics and Phylogeography of the Genus Tilia in North America. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/9498

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

McCarthy, Diane. “Systematics and Phylogeography of the Genus Tilia in North America.” 2012. Thesis, University of Illinois – Chicago. Accessed March 07, 2021. http://hdl.handle.net/10027/9498.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

McCarthy, Diane. “Systematics and Phylogeography of the Genus Tilia in North America.” 2012. Web. 07 Mar 2021.

Vancouver:

McCarthy D. Systematics and Phylogeography of the Genus Tilia in North America. [Internet] [Thesis]. University of Illinois – Chicago; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10027/9498.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

McCarthy D. Systematics and Phylogeography of the Genus Tilia in North America. [Thesis]. University of Illinois – Chicago; 2012. Available from: http://hdl.handle.net/10027/9498

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht

4. Osseweijer, F.J.W. Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition.

Degree: 2016, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/335170

► Biodiversity loss is currently one of the most important environmental issues worldwide, alongside and interlinked with climate change. Nitrogen (N) deposition is forecasted to be… (more)

Subjects/Keywords: background deposition; biodiversity; capitalization; critical deposition load; emissions; habitats; impact assessment; Natura 2000; nitrogen; nitrogen deposition; offsetting; planetary boundaries; species

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Osseweijer, F. J. W. (2016). Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/335170

Chicago Manual of Style (16^th Edition):

Osseweijer, F J W. “Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition.” 2016. Masters Thesis, Universiteit Utrecht. Accessed March 07, 2021. http://dspace.library.uu.nl:8080/handle/1874/335170.

MLA Handbook (7^th Edition):

Osseweijer, F J W. “Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition.” 2016. Web. 07 Mar 2021.

Vancouver:

Osseweijer FJW. Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition. [Internet] [Masters thesis]. Universiteit Utrecht; 2016. [cited 2021 Mar 07]. Available from: http://dspace.library.uu.nl:8080/handle/1874/335170.

Council of Science Editors:

Osseweijer FJW. Biodiversity Impacts and Offsetting Costs of Nitrogen Deposition. [Masters Thesis]. Universiteit Utrecht; 2016. Available from: http://dspace.library.uu.nl:8080/handle/1874/335170

Brigham Young University

5. Vance, Victoria L. Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae).

Degree: MS, 2006, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1866&context=etd

► Previous studies based on morphological, allozymic and mitochondrial sequence data have indicated that Liomys pictus is paraplyletic relative to L. spectabilis. The purpose of this… (more)

Subjects/Keywords: species boundaries; Liomys pictus; Liomys spectabilis; Weins-Penkrot; cohesion test; delimiating species; Biology

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APA (6^th Edition):

Vance, V. L. (2006). Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae). (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1866&context=etd

Chicago Manual of Style (16^th Edition):

Vance, Victoria L. “Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae).” 2006. Masters Thesis, Brigham Young University. Accessed March 07, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1866&context=etd.

MLA Handbook (7^th Edition):

Vance, Victoria L. “Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae).” 2006. Web. 07 Mar 2021.

Vancouver:

Vance VL. Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae). [Internet] [Masters thesis]. Brigham Young University; 2006. [cited 2021 Mar 07]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1866&context=etd.

Council of Science Editors:

Vance VL. Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae). [Masters Thesis]. Brigham Young University; 2006. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1866&context=etd

University of Michigan

6. Chatfield, Matthew Williams Howard. Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae).

Degree: PhD, Ecology and Evolutionary Biology, 2009, University of Michigan

URL: http://hdl.handle.net/2027.42/63626

► This dissertation includes three studies that focus on the evolution of salamanders in the Plethodon glutinosus group (family Plethodontidae), that are found throughout much of… (more)

▼ This dissertation includes three studies that focus on the evolution of salamanders in the Plethodon glutinosus group (family Plethodontidae), that are found throughout much of the eastern United States. The first study explores species delimitation in taxonomically problematic groups and then, in that context, examines the long and contentious taxonomic history of the P. glutinosus group. Four commonly encountered problems are reviewed: (1) the presence of cryptic species complexes, (2) incomplete lineage sorting, (3) introgressive hybridization, and (4) the application of different species concepts. The history of species description in the P. glutinosus group is then discussed in light of these problems. The controversial use of DNA barcoding is also discussed, as is its potential utility in the group. The second study is a spatially fine-scale analysis of a hybrid zone that occurs among three species within the P. glutinosus group – P. jordani, P. metcalfi, and P. teyahalee – in the southern Appalachian Mountains. Spatial patterns of variation along four transects are examined at four markers: single nucleotide polymorphisms located in the mtDNA ND2 gene and the nuclear DNA ILF3 gene and the morphological markers of red cheek pigmentation and white flecks. Concordance among nuclear DNA and both morphological markers across the four transects is observed. In three of the four transects, however, the pattern of mtDNA is discordant from all other markers. This finding, in addition to previous studies demonstrating mating asymmetry and differing ecological niches, suggests the hybrid zone may be moving. The third study uses ecological niche modeling to explore range dynamics of P. jordani and P. metcalfi at three time periods: (1) present-day, (2) during the last glacial maximum 21,000 years ago, and (3) in the year 2050 under a climate warming scenario. Generated models suggest the distributions of these species are influenced by precipitation and are dynamic across the time periods studied. The conservation status of P. jordani and P. metcalfi are discussed in light of anthropogenic climate change. Advisors/Committee Members: Nussbaum, Ronald A. (committee member), Tucker, Priscilla K. (committee member), Duda Jr, Thomas F. (committee member), Long, Jeffrey C. (committee member).

Subjects/Keywords: Hybrid Zone; Species Boundaries; Evolutionary Genetics; Salamanders; Plethodon; Ecology and Evolutionary Biology; Science

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chatfield, M. W. H. (2009). Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae). (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/63626

Chicago Manual of Style (16^th Edition):

Chatfield, Matthew Williams Howard. “Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae).” 2009. Doctoral Dissertation, University of Michigan. Accessed March 07, 2021. http://hdl.handle.net/2027.42/63626.

MLA Handbook (7^th Edition):

Chatfield, Matthew Williams Howard. “Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae).” 2009. Web. 07 Mar 2021.

Vancouver:

Chatfield MWH. Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae). [Internet] [Doctoral dissertation]. University of Michigan; 2009. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2027.42/63626.

Council of Science Editors:

Chatfield MWH. Evolutionary Dynamics among Salamanders in the Plethodon glutinosus Group, with an Emphasis on Three Species: P. jordani, P. metcalfi, and P. teyahalee (Caudata: Plethodontidae). [Doctoral Dissertation]. University of Michigan; 2009. Available from: http://hdl.handle.net/2027.42/63626

Brigham Young University

7. Jackson, Nathan D. Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus).

Degree: MS, 2005, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1357&context=etd

► Understanding the mechanisms that generate shared morphologies across closely related taxa is important when identifying distinct evolutionary lineages using morphological characters. Desmognathus salamanders are an… (more)

Subjects/Keywords: phylogeography; morphological conservatism; parallelism; Desmognathus; quadramaculatus; marmoratus; folkertsi; nested clade analysis; Appalachian; species boundaries; Biology

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APA (6^th Edition):

Jackson, N. D. (2005). Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus). (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1357&context=etd

Chicago Manual of Style (16^th Edition):

Jackson, Nathan D. “Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus).” 2005. Masters Thesis, Brigham Young University. Accessed March 07, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1357&context=etd.

MLA Handbook (7^th Edition):

Jackson, Nathan D. “Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus).” 2005. Web. 07 Mar 2021.

Vancouver:

Jackson ND. Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus). [Internet] [Masters thesis]. Brigham Young University; 2005. [cited 2021 Mar 07]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1357&context=etd.

Council of Science Editors:

Jackson ND. Phylogenetic History, Morphological Parallelism, and Speciation in a Complex of Appalachian Salamanders (Genus: Desmognathus). [Masters Thesis]. Brigham Young University; 2005. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1357&context=etd

University of Oklahoma

8. Micozzi, Mark Richard. The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma.

Degree: PhD, Department of Geography and Environmental Sustainability, 2001, University of Oklahoma

URL: http://hdl.handle.net/11244/353

► The research presented here demonstrated that the effect of spatial heterogeneity at the sub-landscape scale had the most impact on species richness and diversity. Increased… (more)

Subjects/Keywords: Biotic communities.; Biology, Ecology.; Vegetation and climate.; Ecological heterogeneity.; Vegetation boundaries.; Phytogeography.; Physical Geography.; Species diversity.

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APA (6^th Edition):

Micozzi, M. R. (2001). The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/353

Chicago Manual of Style (16^th Edition):

Micozzi, Mark Richard. “The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma.” 2001. Doctoral Dissertation, University of Oklahoma. Accessed March 07, 2021. http://hdl.handle.net/11244/353.

MLA Handbook (7^th Edition):

Micozzi, Mark Richard. “The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma.” 2001. Web. 07 Mar 2021.

Vancouver:

Micozzi MR. The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma. [Internet] [Doctoral dissertation]. University of Oklahoma; 2001. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11244/353.

Council of Science Editors:

Micozzi MR. The effect of spatial heterogeneity and environmental gradients on vegetation in a semi-arid environment: Black Mesa, Cimarron County, Oklahoma. [Doctoral Dissertation]. University of Oklahoma; 2001. Available from: http://hdl.handle.net/11244/353

Louisiana State University

9. DeMoor, Emily A. Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum.

Degree: PhD, Education, 2003, Louisiana State University

URL: etd-01282004-142920 ; https://digitalcommons.lsu.edu/gradschool_dissertations/296

► David Orr (1994) asserts that the ecological crisis is a crisis of education. This study explores the relationship between the ecological crisis and education by… (more)

▼ David Orr (1994) asserts that the ecological crisis is a crisis of education. This study explores the relationship between the ecological crisis and education by examining the role that language plays in shaping perceptions of the natural world. Toward this end it analyzes narratives of science, literature and other disciplines that conceptualize the natural world as object and as subject. It evaluates how particular metaphors used in reference to the natural world enhance or impede ecological understanding and the cultivation of responsibility and stewardship and considers ways in which these conceptualizations might be used as a basis for new curriculum theorizing. In looking at our relationship to Earth, this dissertation explores the notion of intersubjectivity (Abram, 1996) as expressed in philosophical and theoretical writings on participatory consciousness (Berman, 1981, Abram, 1996), empathic fusion (Goizueta, 1995), and bodymind or embodied knowing (Hocking, Haskell, & Linds, 1999). Marginal or in-between spaces emerge from these narratives as important and potentially transformative sites of relationship and meaning making wherein dualities are reconciled and physical and metaphysical realms merge. The implications of these particular findings form the theoretical core of this work's conclusions. This dissertation makes an original contribution to the field of curriculum theory in the following ways: It situates discursive knowledge in the larger context of the natural world, with nature as text and conversation partner in the process of knowledge construction. In dialog with the natural world, it explores new curricular spaces of mystery and spirit. It suggests soil, roots, and mycorrhizae as rich and regenerative metaphors for curriculum theorizing. It highlights the work of the nature writers as a resource for engendering new understandings of the natural world as having voice, identity, and agency, suggests this body of literature as a curricular resource for cultivating ecological understandings, and places this literature in conversation with the field of curriculum theory. Finally, it argues for a both/and dialogic position regarding the notions of local knowledge and metanarrative. In these ways, it seeks to philosophically fund a move away from an ecologically disabling anthropocentrism and toward a greater intimacy with the natural world.

Subjects/Keywords: roots; soil; intersubjectivity; metaphor; nature writers; ecology; nature; non-duality; situated knowledge; embodied knowing; discursive space; cosmology; conversations across species boundaries; non-linearity; relational spaces; spirituality; mycorrhizae

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APA (6^th Edition):

DeMoor, E. A. (2003). Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-01282004-142920 ; https://digitalcommons.lsu.edu/gradschool_dissertations/296

Chicago Manual of Style (16^th Edition):

DeMoor, Emily A. “Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum.” 2003. Doctoral Dissertation, Louisiana State University. Accessed March 07, 2021. etd-01282004-142920 ; https://digitalcommons.lsu.edu/gradschool_dissertations/296.

MLA Handbook (7^th Edition):

DeMoor, Emily A. “Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum.” 2003. Web. 07 Mar 2021.

Vancouver:

DeMoor EA. Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum. [Internet] [Doctoral dissertation]. Louisiana State University; 2003. [cited 2021 Mar 07]. Available from: etd-01282004-142920 ; https://digitalcommons.lsu.edu/gradschool_dissertations/296.

Council of Science Editors:

DeMoor EA. Soils of regeneration: exploring conceptualizations of the natural world as a context for an ecologically-sensitive curriculum. [Doctoral Dissertation]. Louisiana State University; 2003. Available from: etd-01282004-142920 ; https://digitalcommons.lsu.edu/gradschool_dissertations/296

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