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Rozprawy doktorskie na temat „Sheep South Australia Breeding”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 28 stycznia 2023

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1

Nottle, Mark Brenton. "Short-term nutrition and its effect on ovulation in the ewe." Title page, table of contents and summary only, 1988. http://web4.library.adelaide.edu.au/theses/09PH/09phn921.pdf.

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Brooks, Brenton James. "Breeding durum wheat for South Australia /." Title page, table of contents and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phb8731.pdf.

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3

Valizadeh, Reza. "Summer nutrition of sheep based on residues of annual crops and medic pastures." Title page, contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phv172.pdf.

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4

Terblanche, Stefan. "An economic analysis of an intensive sheep production system on cultivated pastures in South Africa, incorporating creep feeding- and accelerated breeding practices." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020939.

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The South African sheep industry has experienced an increase in the price of meat and wool over the past several years. This has led to an interest in intensification of sheep production off planted pastures. Due to this phenomenon an economic viability study was done on the intensification of sheep production on cultivated pastures under irrigation. When intensifying sheep production, certain management practices need to be incorporated in order to enhance the output obtained per hectare and to overcome the higher input cost of production. Management practices that could be included are creep

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5

Zishiri, Oliver Tendayi. "Genetic analyses of South African terminal sire sheep breeds." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/4034.

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Thesis (MScAgric (Animal Sciences))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Fluctuations and a general decline in the ratio between wool and meat prices resulted in marked changes in the South African sheep industry. Commercial producers now exploit other mechanisms such as terminal crossbreeding of Merino-type with meat type breeds or dual-purpose breeds to attain short-term benefits resulting from price fluctuations between wool and mutton without compromising the wool-producing capacities of ewe flocks. Most components of lamb production have low heritability. However, h

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Elliott, Malcolm Gordon, of Western Sydney Hawkesbury University, and Faculty of Environmental Management and Agriculture. "Grass tetany of cattle in New South Wales." THESIS_FEMA_xxx_Elliott_M.xml, 2000. http://handle.uws.edu.au:8081/1959.7/7.

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Over the last 60 years, grass tetany has been recognised as a significant lethal condition in sheep and cattle.Outcomes from this study include documentation of the likely precursors to grass tetany, ways to recognise these precursors, and long term practices that will enable producers to minimise livestock deaths. The benefit of this research to beef producers is that the environmental circumstances thought to be associated with outbreaks of grass tetany have been identified, along with remedial action that can be taken to prevent deaths occurring.Recommendations to industry on best practice

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7

Sandenbergh, Lise. "Identification of SNPs associated with robustness and greater reproductive success in the South African merino sheep using SNP chip technology." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97093.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Reproduction and robustness traits are integral in ensuring sustainable, efficient and profitable sheep farming. Increases in genetic gain of reproduction and robustness traits are however, hampered by low heritability coupled with the difficulty in quantification of these traits for traditional selective breeding strategies. The aim of the current study was therefore to identify genomic regions underlying variation in reproduction traits and elucidate quantitative trait loci (QTL) and/or genes associated with reproductive trait

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8

Dlamini, Thula Sizwe. "The economics of converting a sheep farm into a springbuck (Antidorcas marsupialis) ranch in Graaff-Reinet: a simulation analysis." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1002738.

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In Graaff-Reinet, domestic livestock farming and springbuck ranching are similar in that they both rely on the rangeland for their sustainability. However, as a consequence of repeated monotonous domestic livestock farming, resulting in compromised biological productivity and diversity, the rangelands have disintegrated. This, unfortunately, has placed the future sustainability of these rangelands and the livelihoods of the local people in an indeterminate state. In recent years, there has been an increasing interest in springbuck ranching for meat production as an alternative to domestic live

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9

Kumalo, Molefi Petrus. "Characterization of sheep and goat production systems amongst small-scale farmers in the Southern Free State." Thesis, Bloemfontein : Central University of Technology, Free State, 2014. http://hdl.handle.net/11462/266.

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10

Paull, David James. "The conservation role of captive breeding : a case study of rare and threatened animals indigenous to South Australia /." Title page, contents and abstract only, 1985. http://web4.library.adelaide.edu.au/theses/09AR/09arp3292.pdf.

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11

Marchesan, Doreen. "Presence, breeding activity and movement of the yellow-footed antechinus (Antechinus flavipes), in a fragmented landscape of the southern Mt Lofty Ranges." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09AS/09asm316.pdf.

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"September 2002" Bibliography: leaves 77-85. Examines the persistence of the yellow-footed antechinus using live trapping in small, remnant patches and strips of forest, to document autecological sata and the investgate occurrence, breeding activity and inter-patch movements. Radio-tracking was conducted to compare home range properties of lactating females in restricted and unrestricted habitat.

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12

Mapiliyao, Luke. "Sheep production practices, flock dynamics, body condition and weight variation in two ecologically different resource-poor communal farming systems." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/340.

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The objective of this study was to determine sheep production practices, constraints, flock dynamics, body condition and weight variation in two ecologically different resource-poor communal farming systems of the Eastern Cape Province of South Africa. Mean sheep flock sizes per household were not significantly different between the two ecologically different areas (villages); Gaga (19.0±3.10) and Sompondo (18.3±3.10). Shortage of feed, disease and parasite were reported the most important constraints across the two villages. In both villages, sheep housing was poorly constructed using acacia

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13

Van, Rooyen Ignatius Martin. "The relationship between pelvic dimensions and linear body measurements in dorper sheep." Thesis, Bloemfontein : Central University of Technology, Free State, 2012. http://hdl.handle.net/11462/142.

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Thesis (M. Tech. Agriculture) -- Central University of Technology, Free state, 2012<br>Low lifetime rearing success and high perinatal mortality have been associated with small pelvic areas of ewes. Ewes with small pelvic areas are more prone to experience dystocia during parturition and high perinatal mortality. It would thus make sense to include pelvic area as criterion in selecting breeding animals (rams) in an attempt to assure bigger pelvic areas in the female progeny as the heritability of pelvic area ranges between 50-60%. The aims of this study were to develop two instruments to accu

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14

Dunlop, James Nicholas. "The comparative breeding biology of sympatric crested terns Sterna bergii (Lichtenstein), and Silver Gulls Larus novaehollandiae (Stephens) in south-western Australia." Thesis, Dunlop, James Nicholas (1986) The comparative breeding biology of sympatric crested terns Sterna bergii (Lichtenstein), and Silver Gulls Larus novaehollandiae (Stephens) in south-western Australia. PhD thesis, Murdoch University, 1986. https://researchrepository.murdoch.edu.au/id/eprint/52076/.

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This thesis reports an investigation of the double-nesting phenomenon, a unique pattern of anomalous, protracted breeding, reported in seabirds from mid-western and south-western Australia. In particular, it deals with the Crested Tern Sterna bergii Lichtenstein and the Silver Gull Larus novaehollandiae Stephens, two related lariform seabirds which nest in sympatry, and possibly associatively, in the Fremantle area of south-western Australia. Both species have protracted breeding seasons in the study area, superficially similar in timing and duration, and therefore provided useful subjects for

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15

Bell, Kevin John. "A study on productivity in sheep flocks in the south west of Western Australia : A model for the application and evaluation of health and production programmes." Thesis, Bell, Kevin John (1986) A study on productivity in sheep flocks in the south west of Western Australia : A model for the application and evaluation of health and production programmes. PhD thesis, Murdoch University, 1986. https://researchrepository.murdoch.edu.au/id/eprint/42470/.

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From 1979 to 1982, a study was conducted in the Kojonup district of Western Australia on the provision of veterinary services to the sheep industry at the farm level. The objectives of the study were: (i) To examine and evaluate management and other factors affecting sheep enterprise productivity. (ii) To develop guidelines and methodologies for integrated health and production programmes applicable to sheep farms. (iii) To assess the economic impact of sheep health and production programmes over a number of years by reference to control properties. (iv) To examine in detail certain of the

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16

Lord, Andrew P. D. "IGF transfer from blood to tissue: comparison of IGF-I with analogs that bind poorly to binding proteins, using a vascular perfusion model : a thesis submitted to the University of Adelaide, South Australia, for the degree of Doctor of Philosophy /." Title page, abstract and table of contents, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phl866.pdf.

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17

Bhat, Shambhu Shankar. "Physiological and agronomic evaluation of responses of faba bean (Vicia faba L.) genotypes to water and high temperature stresses : developing screening techniques /." Title page, table of contents and summary only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phb5754.pdf.

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18

McKenzie, Jane, and janemckenzie@malpage com. "Population demographics of New Zealand fur seals (Arctocephalus forsteri)." La Trobe University. Zoology Department, School of Life Sciences, 2006. http://www.lib.latrobe.edu.au./thesis/public/adt-LTU20080509.121141.

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Assessment of trophic interactions between increasing populations of New Zealand fur seals (Arctocephalus forsteri) and fisheries in southern Australia is limited due to a lack of species specific demographic data and an understanding of the factors influencing population growth. To establish species specific demographic parameters a cross-sectional sample of New Zealand fur seal females (330) and males (100) were caught and individually-marked on Kangaroo Island, South Australia between 2000 and 2003. The seals were aged through examination of a postcanine tooth, which was removed from each a

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19

Hill, Jane Adair. "Phenotypic and genetic parameters for the S.A. Strongwool merino strain with an emphasis on skin characters as early indicators of wool productivity." 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phh6463.pdf.

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Bibliography: leaves 325-341. Skin and fleece measurements were recorded at different ages for both male and female sheep from the Turretfield Merino Resource Flock and used to estimate the heritability of each trait and the phenotypic and genetic correlations among and between the skin and fleece traits. Generally, the heritability of each trait was high, which indicates that both the fleece and skin traits should respond well to selection.

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20

Hill, Jane Adair. "Phenotypic and genetic parameters for the S.A. strongwool merino strain with an emphasis on skin characters as early indicators of wool productivity / by Jane Adair Hill." Thesis, 2001. http://hdl.handle.net/2440/21721.

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Includes bibliographical references (leaves 325-341).<br>xxvii, 341 leaves : ill. ; 30 cm.<br>Skin and fleece measurements were recorded at different ages for both male and female sheep from the Turretfield Merino Resource Flock and used to estimate the heritability of each trait and the phenotypic and genetic correlations among and between the skin and fleece traits. Generally, the heritability of each trait was high, which indicates that both the fleece and skin traits should respond well to selection.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 2001

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21

Nottle, Mark Brenton. "Short-term nutrition and its effect on ovulation in the ewe / by Mark Brenton Nottle." Thesis, 1988. http://hdl.handle.net/2440/19113.

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Includes bibliographical references (leaves 143-165)<br>xiii, 168 leaves : ill. (some col.) ; 30 cm.<br>Reports on studies undertaken to examine the physiological basis of the known ability of lupin grain to increase ovulation rate in the ewe.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Sciences, Waite Agricultural Research Institute, 1989

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22

Chaichi, Mohammad Reza. "Grazing management of annual medic pastures / by Mohammad Reza Chaichi." 1995. http://hdl.handle.net/2440/18733.

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Bibliography: leaves 300-321.<br>xiii, 321 leaves [11] leaves of plates : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>This thesis aims to extend knowledge and understanding of the seed-seedling dynamics and productivity of annual Medicago pastures. In particular this study concentrates on the impact of grazing by sheep on Medicago pasture herbage and seed production and sheep body weight gains.<br>Thesis (Ph.D.)--University of Adelaide, Depts. of Agronomy and Farming Systems and Plant Scienc

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23

Valizadeh, Reza. "Summer nutrition of sheep based on residues of annual crops and medic pastures / by Reza Valizadeh." Thesis, 1994. http://hdl.handle.net/2440/21502.

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Bibliography: leaves 259-291.<br>xiii, 291 leaves, [8 leaves of col. plates] : ill. (some col.) ; 30 cm.<br>Thesis (Ph.D.)--University of Adelaide, Faculty of Agricultural and Natural Resource Sciences,1994

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24

Noell, Craig J. "Early life stages of the southern sea garfish, Hyporhamphus Melanochir (Valenciennes 1846), and their association with seagrass beds." 2005. http://hdl.handle.net/2440/57972.

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This study investigates early life stages of the southern sea garfish (Hyporhamphus melanochir) and their association with seagrass in Gulf St Vincent, South Australia. The overall aims were to identify and describe the early life stages of H. melanochir and to explore the possible relationship(s) between these life stages and seagrass habitat with the emphasis on seagrass as a requirement for spawning or as a food source. The reproductive biology of female H. melanochir from the commercial fishery was assessed by microscopic examination of ovaries, oocyte size distributions, gonadosomatic ind

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Noell, Craig J. "Early life stages of the southern sea garfish, Hyporhamphus Melanochir (Valenciennes 1846), and their association with seagrass beds." Thesis, 2005. http://hdl.handle.net/2440/57972.

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This study investigates early life stages of the southern sea garfish (Hyporhamphus melanochir) and their association with seagrass in Gulf St Vincent, South Australia. The overall aims were to identify and describe the early life stages of H. melanochir and to explore the possible relationship(s) between these life stages and seagrass habitat with the emphasis on seagrass as a requirement for spawning or as a food source. The reproductive biology of female H. melanochir from the commercial fishery was assessed by microscopic examination of ovaries, oocyte size distributions, gonadosomatic

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Sargent, Janice. "Genetic variation in blood proteins within and differentiation between 19 sheep breeds from Southern Africa." Thesis, 2012. http://hdl.handle.net/10210/6659.

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M.Sc.<br>The amount of allozyme variation within, and the extent of genetic differentiation between, 19 sheep breeds from southern Africa were determined by six enzyme coding loci. Another eight enzyme coding loci were analyzed for five breeds. Between 55 and 66.67% of the protein coding loci were polymorphic (95% criterion) in all the breeds, except for the Namaqua sheep that were less polymorphic (33.33%). Values of 1.67 to 2.5 were obtained for the mean number of alleles per locus and average heterozygosities per locus was between 16.6 to 35.9%. The allelic constitution particularly at the

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27

Marshall, Penelope Margaret. "Playing for sheep stations : a discourse analysis of wild dog management and control policy in New South Wales, Australia." Phd thesis, 2013. http://hdl.handle.net/1885/132127.

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This thesis challenges the constitutive and taken-for-granted assumptions of the current dominant administrative rationalist discourse of wild dog management and control (WMDC) in New South Wales (NSW), Australia. It asks: To what extent can conflicts over WDMC in NSW be understood in terms of contending discourses and what does that imply for policy legitimacy? It isolates the storylines that emerged from substantial empirical research and examines, if and how, these storylines contributed to the dominant discourse of administrative rationalism. From the beginning of white settlement of NSW,

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28

Marchesan, Doreen. "Presence, breeding activity and movement of the yellow-footed antechinus (Antechinus flavipes), in a fragmented landscape of the southern Mt Lofty Ranges." Thesis, 2002. http://hdl.handle.net/2440/109645.

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Examines the persistence of the yellow-footed antechinus using live trapping in small, remnant patches and strips of forest, to document autecological sata and the investgate occurrence, breeding activity and inter-patch movements. Radio-tracking was conducted to compare home range properties of lactating females in restricted and unrestricted habitat.<br>Thesis (M.App.Sc.) -- University of Adelaide, Dept. of Animal Science, 2002

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29

Palisetty, Raghunadh. "Effects of sheep, kangaroos and rabbits on the regeneration of trees and shrubs in the chenopod shrublands, South Australia." 2007. http://arrow.unisa.edu.au:8081/1959.8/28390.

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After European settlement, Australian rangelands especially in South Australia underwent significant changes because of the main land use of pastoralism. Many studies have revealed that the plant communities are negatively effected by herbivory mainly by sheep. The main aim of this study is to separate the different effects of sheep, rabbits and kangaroos. This was examined by survey supported by experimental and modelling research. A 32,000 km² area previously surveyed by Tiver and Andrew (1997) in eastern South Australia was re-surveyed to monitor populations of perennial plant species at si

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30

Cooper, David Seth. "Genetics and agronomy of transient salinity in Triticum durum and T. aestivum." 2005. http://hdl.handle.net/2440/59204.

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Title page, table of contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library.<br>Transient salinity in soils is characterised by high concentrations of salts in the subsoil. Durum wheat (Triticum turgidum L. Var. durum) is less tolerant of transient salinity than locally developed bread wheat (Triticum aestivum) varieties, and this results in reliable durum production being restricted to relatively unaffected soils. Field trials were conducted to assess the relative impact of transient salinity, boron toxicity and bicarbonate on crop

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Reinke, Russell Frederick. "Genetic improvement of seedling vigour in temperate rice (Oryza sativa L.)." Phd thesis, 2000. http://hdl.handle.net/1885/148126.

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Bhat, Shambhu Shankar. "Physiological and agronomic evaluation of responses of faba bean (Vicia faba L.) genotypes to water and high temperature stresses : developing screening techniques / by Shambhu Shankar Bhat." Thesis, 2001. http://hdl.handle.net/2440/22074.

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Lord, Andrew P. D. (Andrew Peter Duncan). "IGF transfer from blood to tissue: comparison of IGF-I with analogs that bind poorly to binding proteins, using a vascular perfusion model : a thesis submitted to the University of Adelaide, South Australia, for the degree of Doctor of Philosophy." 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phl866.pdf.

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Includes bibliographical references (leaves 188-217) Insulin-like growth factor-I circulates at high concentrations in blood, mainly complexed with IGF-binding proteins. The main objective of the thesis is to determine the general role played by plasma IGF-binding proteins in the regulation of IGF transfer from blood to tissues.

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James, Melanie Sandra. "Investigating and integrating animal behaviour in the conservation and management of an endangered amphibian." Thesis, 2019. http://hdl.handle.net/1959.13/1401338.

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Research Doctorate - Doctor of Philosophy (PhD)<br>The Earth is experiencing a period of mass extinction due to human development and expansion (Wake & Vredenburg 2008). It has been estimated that 866 animal, plant, fungi and protist species have become extinct in recent history, and 25,821 species were declared either Critically Endangered, Endangered or Vulnerable in 2017 (IUCN 2017). Causal agents of population declines and biodiversity loss include climate change, land clearing, habitat modification and the introduction of exotic competitor or predator species (Vitousek et al. 1997) and di

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