Thecamoebous moss-rhizopods from New Zealand

Hoogenraad, H. R.; Groot, A. A. De

doi:10.1007/bf02519268

Cited by 20 publications

(17 citation statements)

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“…However, there slipped a mistake in two papers (Jung, 1942;Mazei and Tsyganov, 2006) because the authors stated that aperture width ranged from 34 to 35 µm. Hoogenraad and de Groot (1940) reported the original data based on material from Indonesia: shell length 130-170 µm and shell width 83-123 µm. Ogden and Hedley (1980) also noted the original measurements for the specimens from Great Britain: shell length 153-171 µm, shell width 95-115 µm, and aperture width 38-41 µm.…”

Section: Discussionmentioning

confidence: 99%

“…To the best of my knowledge, only four mossdwelling metapopulations of P. bigibbosa were noted: in Germany (Penard, 1890), Great Britain (Brown, 1911, Indonesia (Hoogenraad and de Groot, 1940) and Bulgaria (Todorov, 1998). Recently, I have found specimens of this species in the epigenous moss samples from the Alagovac Lake region, East Herzegovina.…”

Section: Introductionmentioning

confidence: 99%

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Morphological Variabilityof Porosia Bigibbosa (Arcellinida: Hyalospheniidae) From East Herzegovina

Luketa¹

2016

Protistology

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SummaryThe genus Porosia includes two species characterized by presence of two large invaginated pores. These pores are connected by internal tube as in members of the genus Certesella. In this paper, morphological variability of P. bigibbosa (Penard, 1890) Jung, 1942 based on 175 specimens from East Herzegovina is presented. Shell length ranges from 136 to 178 µm (previously noted 128-177 µm), shell width -from 86 to 118 µm (previously noted 83-123 µm), aperture width -from 40 to 51 µm (previously noted 34-49 µm), aperture-pore distance -from 45 to 62 µm (previously noted 52-70 µm), pore-pore distance -from 48 to 80 µm (previously not measured), and area of the optical section -from 9063 to 15706 µm 2 (previously not measured). The minimal variability (4.5%) was observed for shell length, while maximal variability (9.01%) was recorded for the area of the optical section. Results of size frequency distribution analysis of shell length and shell width indicate that this population possesses continuous polymorphism.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphological Variabilityof Porosia Bigibbosa (Arcellinida: Hyalospheniidae) From East Herzegovina

Luketa¹

2016

Protistology

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“…A secondary aim is to supplement the sparse existing literature on the testate amoebae fauna of New Zealand. Existing data from New Zealand (Hoogenraad & De Groot 1948;Van Oye 1956) suggests that there are differences with other areas of the world, but also many commonalities. Some of the differences have been used to develop evolutionary models for the Antarctic, sub-Antarctic and southern continental areas (Smith & Wilkinson 1986), but the database for many regions-including New Zealand-is rather poor.…”

Section: Introductionmentioning

confidence: 99%

Modelling hydrological relationships of testate amoebae (Protozoa: Rhizopoda) on New Zealand peatlands

Charman

1997

Journal of the Royal Society of New Zealand

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Research in the Northern Hemisphere shows the principal control on species distribution and abundance of testate amoebae to be local hydrology, which in ombrotrophic mires is linked directly to climate Fossil faunas can therefore be used to infer past hydrological and climatic conditions This study investigates whether a similar relationship can be found for New Zealand peatlands, as a first step towards developing a method for palaeomoisture reconstructions Fifty-seven samples from 13 peatlands were analysed for testate amoebae and related to site hydrology, pH and conductivity of mire waters, climate, and vegetation type using canonical correspondence analysis (CCA) Water table and soil moisture were the dominant factors, and their relationship with species assemblage was modelled using four transfer functions weighted averaging (WA), tolerance downweighted weighted averaging (WA-Tol), partial least squares (PLS), and weighted average partial least squares (WA-PLS) PLS and WA-PLS performed best, and suggest that palaeohydrology could be accurately inferred from fossil faunas Results are contrasted with those found in the northern peatlands

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“…This species is very similar to P. lageniformis and key difference is length of neck. Many authors had been reporting values for typical populations of P. lageniformis between 30 and 50 µm (Hoogenraad and de Groot, 1940;Jung, 1942a;van Oye, 1949;Gauthier-Lièvre, 1953;Luketa, 2017a) and for typical P. wailesi from 25 to 34 µm (Jung, 1942a;Chattopadhyay and Das, 2003). Luketa (2017a) reported values of neck length for two intermediate populations from 22 to 42 µm.…”

Section: Stefan Luketamentioning

confidence: 99%

“…Jung (1942b) proposed the genus Porosia for only this species because it is characterized by the presence of two distinct lateral depressions with two large invaginated pores situated on each side of the shell. After the original description of this species, several authors noted basic morphometric data based on the populations from Ireland (Wailes and Penard, 1911), Indonesia (Hoogenraad and de Groot, 1940), and Great Britain (Ogden and Hedley, 1980). In these studies, arithmetic means and ratios of measured characters were not provided.…”

Section: Porosia Bigibbosamentioning

confidence: 99%

Morphometrics of three hyalosphenid testate amoebae from the Velež Lake region, East Herzegovina

Luketa¹

2017

Protistology

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SummaryTaxonomy of hyalosphenid testate amoebae at the species level is mainly based on the shape and size of their shells. In this paper, the morphometric data for Padaungiella lageniformis (member of the family Padaungiellidae), Nebela minor and Porosia bigibbosa (members of the family Hyalospheniidae s.s.) from the Velež Lake region (East Herzegovina) are presented. The analyzed population of P. lageniformis contains specimens with shell length between 83 and 112 µm, with the arithmetic mean of 99.07 µm. These data support synonymization of P. wailesi (shell length 75-100 µm) and P. lageniformis s.s. (shell length 100-160 µm). Recently, the wide taxonomic concept of N. tincta has been proposed based on molecular and morphological analyses conducted on a small number of specimens. This concept implies synonymization of N. minor with N. tincta, but morphometric analysis of N. minor presented here does not support the wide taxonomic concept of N. tincta. In addition, morphometric analysis of P. bigibbosa has shown that it is a much more diversified taxon than previously thought. These investigations have shown that further morphometric studies of hyalosphenid testate amoebae are necessary for the clarification of their taxonomic relations.

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Thecamoebous moss-rhizopods from New Zealand

Cited by 20 publications

References 1 publication

Morphological Variabilityof Porosia Bigibbosa (Arcellinida: Hyalospheniidae) From East Herzegovina

Morphological Variabilityof Porosia Bigibbosa (Arcellinida: Hyalospheniidae) From East Herzegovina

Modelling hydrological relationships of testate amoebae (Protozoa: Rhizopoda) on New Zealand peatlands

Morphometrics of three hyalosphenid testate amoebae from the Velež Lake region, East Herzegovina

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