title: Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters

authors: Ruprecht, Ulrike

subjects: chemical races

abstract: The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial SSU rDNA sequences) to test species boundaries within the genus Lecidea. Sampling was done along a north–south transect at five different areas in the Ross Sea region (Cape Hallett, Botany Bay to Mount Suess, Taylor Valley, Darwin Area and Mount Kyffin). A total of 153 specimens were collected from 13 localities. Phylogenetic analyses also include specimens from other regions in Antarctica and non-Antarctic areas. Maximum parsimony, maximum likelihood and Bayesian analyses agreed in placing the samples from continental Antarctica into four major groups. Based on this phylogenetic estimate, we restudied the micromorphology and secondary chemistry of these four clades to evaluate the use of these characters as phylogenetic discriminators. These clades are identified as the following species Lecidea cancriformis, L. andersonii as well as the new species L. polypycnidophora Ruprecht & Türk sp. nov. and another previously unnamed clade of uncertain status, referred to as Lecidea sp. (L. UCR1).

text: Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial SSU rDNA sequences) to test species boundaries within the genus Lecidea. Sampling was done along a north–south transect at five different areas in the Ross Sea region (Cape Hallett, Botany Bay to Mount Suess, Taylor Valley, Darwin Area and Mount Kyffin). A total of 153 specimens were collected from 13 localities. Phylogenetic analyses also include specimens from other regions in Antarctica and non-Antarctic areas. Maximum parsimony, maximum likelihood and Bayesian analyses agreed in placing the samples from continental Antarctica into four major groups. Based on this phylogenetic estimate, we restudied the micromorphology and secondary chemistry of these four clades to evaluate the use of these characters as phylogenetic discriminators. These clades are identified as the following species Lecidea cancriformis, L. andersonii as well as the new species L. polypycnidophora Ruprecht & Türk sp. nov. and another previously unnamed clade of uncertain status, referred to as Lecidea sp. (L. UCR1).

year: 2010

title: Sentence initial lexical bundles in Chinese and New Zealand PhD theses in the discipline of General and Applied Linguistics

authors: Li, Liang

abstract: Lexical bundles are recurrent multiword combinations and often function as discourse building blocks. Lexical bundles have been analysed in university students’ writing to detect linguistic errors, measure writing competence, and investigate the divergence between L1 and L2 writing. Few studies, however, have focused on the high-stakes genre of PhD thesis and investigated the bundle productions of the same genre within the same level and discipline. This paper compares sentence initial lexical bundles in the corpora of English theses written by Chinese and New Zealand PhD students in the discipline of General and Applied Linguistics. Forty-six bundles from a Chinese corpus and forty-two bundles from a New Zealand corpus were generated. Among them, 94% of sentence initial bundles were identified as metadiscursive bundles. Chinese and New Zealand doctoral students showed considerably different preferences in their bundle selection. The paper examines the possible impact of these preferences and suggests there is a need to extend the metadiscourse knowledge of doctoral students in terms of lexical bundles.

text: Sentence initial lexical bundles in Chinese and New Zealand PhD theses in the discipline of General and Applied Linguistics Lexical bundles are recurrent multiword combinations and often function as discourse building blocks. Lexical bundles have been analysed in university students’ writing to detect linguistic errors, measure writing competence, and investigate the divergence between L1 and L2 writing. Few studies, however, have focused on the high-stakes genre of PhD thesis and investigated the bundle productions of the same genre within the same level and discipline. This paper compares sentence initial lexical bundles in the corpora of English theses written by Chinese and New Zealand PhD students in the discipline of General and Applied Linguistics. Forty-six bundles from a Chinese corpus and forty-two bundles from a New Zealand corpus were generated. Among them, 94% of sentence initial bundles were identified as metadiscursive bundles. Chinese and New Zealand doctoral students showed considerably different preferences in their bundle selection. The paper examines the possible impact of these preferences and suggests there is a need to extend the metadiscourse knowledge of doctoral students in terms of lexical bundles.

year: 2022-09-21

title: Wāhine Māori entrepreneurs and business growth: The power of social and cultural capital

authors: MacDonald, Tui

subjects: Māori enterprise

abstract: This paper examines how social and cultural capital support wāhine Māori entrepreneurs as founders to grow their businesses. The findings are based on the first of three rounds of interviews with 10 wāhine Māori entrepreneurs in Aotearoa New Zealand who have or are undergoing business growth. The results extend on previous Indigenous entrepreneurship research 
showing the benefits of social and cultural capital. This research highlights how wāhine Māori entrepreneurs can pursue business growth while maintaining their community and cultural identity. 
This topic has been selected as part of a broader doctoral study examining wāhine Māori entrepreneurs 
and business growth, which focuses on the cultural, social, and economic enablers and challenges.

text: Wāhine Māori entrepreneurs and business growth: The power of social and cultural capital This paper examines how social and cultural capital support wāhine Māori entrepreneurs as founders to grow their businesses. The findings are based on the first of three rounds of interviews with 10 wāhine Māori entrepreneurs in Aotearoa New Zealand who have or are undergoing business growth. The results extend on previous Indigenous entrepreneurship research 
showing the benefits of social and cultural capital. This research highlights how wāhine Māori entrepreneurs can pursue business growth while maintaining their community and cultural identity. 
This topic has been selected as part of a broader doctoral study examining wāhine Māori entrepreneurs 
and business growth, which focuses on the cultural, social, and economic enablers and challenges.

year: 2024