Population stage structure of Hawaiian endemic fern taxa of Diellia (Aspleniaceae): implications for monitoring and regional dynamics

2004 ◽  
Vol 82 (10) ◽  
pp. 1438-1445 ◽  
Author(s):  
Ruth Aguraiuja ◽  
Mari Moora ◽  
Martin Zobel
Keyword(s):  
Census Data ◽  
Local Population ◽  
Hawaiian Islands ◽  
Stage Structure ◽  
Dispersal Ability ◽  
Local Populations ◽  
Regional Dynamics ◽  
The Status ◽  
History Of ◽  
Extinction Events

Single census data were used to investigate the stage structure within populations of the endemic fern genus Diellia in the Hawaiian Islands. Populations were classified as "dynamic" (sporelings predominate), "normal", or " regressive" (mature plants predominate). Six taxa were studied: Diellia erecta Brack., Diellia erecta f. alexandri (Hillebr.) W.H. Wagner, Diellia falcata Brack., Diellia mannii (D.C. Eaton) W.J. Rob., Diellia pallida W.H. Wagner, and Diellia unisora W.H. Wagner. There were significant differences between the population stage structures of different taxa. The populations of D. erecta f. alexandri, and D. unisora represented regressive cases. Diellia pallida was represented by two regressive and one dynamic local population. The status of local populations of D. erecta and D. falcata varied from dynamic to regressive. Diellia erecta f. alexandri, D. mannii, D. pallida, and D. unisora are probably near extinction. Variation in local population conditions of D. erecta, D. falcata, and D. pallida may represent the history of local colonization and subsequent extinction events. The regional dynamics of these taxa correspond with the metapopulation model, since pteridophytes have good dispersal ability, and recruitment of Diellia species takes place only in moist years and is influenced by local disturbances. We conclude that stage structure of local populations can indicate the regional dynamics of a species. All local Diellia populations have to be considered as priority candidates for future conservation efforts.Key words: conservation, Diellia, Hawaiian Islands, metapopulation, population stage structure, regional dynamics.

The genetic structure of the marine flatworm Stylochoplana pusilla (Rhabditophora: Polycladida) and its use of intertidal snails

2020 ◽  
Vol 100 (5) ◽  
pp. 713-717
Author(s):  
Daishi Yamazaki ◽  
Tomoki Aota ◽  
Satoshi Chiba
Keyword(s):  
Genetic Structure ◽  
Population Level ◽  
Mantle Cavity ◽  
Dispersal Ability ◽  
Snail Species ◽  
High Genetic Diversity ◽  
Local Populations ◽  
History Of ◽  
Invertebrate Taxon ◽  
Intertidal Snail

AbstractAlthough marine phylogeographers have accumulated knowledge of the evolutionary history of various invertebrates, there is a large bias among the taxa regarding genetic data. The order Polycladida is a typical example for which little genetic information at population level is available. Here, we focused on the polyclad flatworm Stylochoplana pusilla, distributed in the Japanese Pacific coastal area. Stylochoplana pusilla is known to have commensal relationships with certain intertidal snails, using snails (mainly Monodonta confusa) as a refugee house. During low tide, S. pusilla hides in the mantle cavity of snails to protect themselves from desiccation and predation. Here, we investigated the genetic structure of S. pusilla using a mitochondrial Cytochrome Oxidase I marker and the species diversity of snails used by it. We found that S. pusilla has high genetic diversity of its populations. While S. pusilla showed a significant genetic differentiation among populations, it was relatively low. In addition, we also showed that S. pusilla used several intertidal snail species which inhabit various coastal environments. The present study suggests S. pusilla has sufficient dispersal ability to connect among its local populations. Also, the range of available snails for S. pusilla may help the connectivity among local populations. We provide important knowledge about this invertebrate taxon with a unique ecology, which has been insufficiently studied.

The status of Gideon Mantell's “first” Iguanodon tooth in the Museum of New Zealand Te Papa Tongarewa

1997 ◽  
Vol 24 (3) ◽  
pp. 397-421 ◽  
Author(s):  
JOHN C. YALDWYN ◽  
GARRY J. TEE ◽  
ALAN P. MASON
Keyword(s):  
New Zealand ◽  
Charles Lyell ◽  
The Status ◽  
History Of ◽  
Gideon Mantell

A worn Iguanodon tooth from Cuckfield, Sussex, illustrated by Mantell in 1827, 1839, 1848 and 1851, was labelled by Mantell as the first tooth sent to Baron Cuvier in 1823 and acknowledged as such by Sir Charles Lyell. The labelled tooth was taken to New Zealand by Gideon's son Walter in 1859. It was deposited in a forerunner of the Museum of New Zealand, Wellington in 1865 and is still in the Museum, mounted on a card bearing annotations by both Gideon Mantell and Lyell. The history of the Gideon and Walter Mantell collection in the Museum of New Zealand is outlined, and the Iguanodon tooth and its labels are described and illustrated. This is the very tooth which Baron Cuvier first identified as a rhinoceros incisor on the evening of 28 June 1823.

The European Charter of Local Self-Government

2015 ◽  
Author(s):  
Chris Himsworth
Keyword(s):  
Critical Study ◽  
The European Union ◽  
Future Prospects ◽  
Council Of Europe ◽  
International Treaty ◽  
Additional Protocol ◽  
Domestic Courts ◽  
The Status ◽  
History Of ◽  
Regional Authorities

The first critical study of the 1985 international treaty that guarantees the status of local self-government (local autonomy). Chris Himsworth analyses the text of the 1985 European Charter of Local Self-Government and its Additional Protocol; traces the Charter’s historical emergence; and explains how it has been applied and interpreted, especially in a process of monitoring/treaty enforcement by the Congress of Local and Regional Authorities but also in domestic courts, throughout Europe. Locating the Charter’s own history within the broader recent history of the Council of Europe and the European Union, the book closes with an assessment of the Charter’s future prospects.

A Universe of Societies

2018 ◽  
Author(s):  
Didier Debaise
Keyword(s):  
Spatial Relations ◽  
The Third ◽  
The Status ◽  
History Of ◽  
Temporal And Spatial

Which kind of relation exists between a stone, a cloud, a dog, and a human? Is nature made of distinct domains and layers or does it form a vast unity from which all beings emerge? Refusing at once a reductionist, physicalist approach as well as a vitalistic one, Whitehead affirms that « everything is a society » This chapter consequently questions the status of different domains which together compose nature by employing the concept of society. The first part traces the history of this notion notably with reference to the two thinkers fundamental to Whitehead: Leibniz and Locke; the second part defines the temporal and spatial relations of societies; and the third explores the differences between physical, biological, and psychical forms of existence as well as their respective ways of relating to environments. The chapter thus tackles the status of nature and its domains.

Somewhere between Human, Nonhuman, and Woman

2020 ◽  
Vol 6 (3) ◽  
pp. 21-51
Author(s):  
Debashree Mukherjee
Keyword(s):  
Object Relations ◽  
Human Body ◽  
Film Industry ◽  
The South ◽  
Hunger Strike ◽  
Cultural Events ◽  
Production Experience ◽  
Human Object ◽  
The Status ◽  
History Of

In 1939, at the height of her stardom, the actress Shanta Apte went on a spectacular hunger strike in protest against her employers at Prabhat Studios in Poona, India. The following year, Apte wrote a harsh polemic against the extractive nature of the film industry. In Jaau Mi Cinemaat? (Should I Join the Movies?, 1940), she highlighted the durational depletion of the human body that is specific to acting work. This article interrogates these two unprecedented cultural events—a strike and a book—opening them up toward a history of embodiment as production experience. It embeds Apte's emphasis on exhaustion within contemporaneous debates on female stardom, industrial fatigue, and the status of cinema as work. Reading Apte's remarkable activism as theory from the South helps us rethink the meanings of embodiment, labor, materiality, inequality, resistance, and human-object relations in cinema.

Victorian Pain

2017 ◽  
Author(s):  
Rachel Ablow
Keyword(s):  
Nineteenth Century ◽  
Victorian Literature ◽  
Social Life ◽  
Charles Darwin ◽  
Harriet Martineau ◽  
The Status ◽  
History Of ◽  
The Individual ◽  
Natural Philosophers ◽  
First Time

The nineteenth century introduced developments in science and medicine that made the eradication of pain conceivable for the first time. This new understanding of pain brought with it a complex set of moral and philosophical dilemmas. If pain serves no obvious purpose, how do we reconcile its existence with a well-ordered universe? Examining how writers of the day engaged with such questions, this book offers a compelling new literary and philosophical history of modern pain. The book provides close readings of novelists Charlotte Brontë and Thomas Hardy and political and natural philosophers John Stuart Mill, Harriet Martineau, and Charles Darwin, as well as a variety of medical, scientific, and popular writers of the Victorian age. The book explores how discussions of pain served as investigations into the status of persons and the nature and parameters of social life. No longer conceivable as divine trial or punishment, pain in the nineteenth century came to seem instead like a historical accident suggesting little or nothing about the individual who suffers. A landmark study of Victorian literature and the history of pain, the book shows how these writers came to see pain as a social as well as a personal problem. Rather than simply self-evident to the sufferer and unknowable to anyone else, pain was also understood to be produced between persons—and even, perhaps, by the fictions they read.

The Legal Status of Local Government in South Africa under the New Constitutional Dispensation

2018 ◽  
Vol 33 (2) ◽  
Author(s):  
Mbuzeni Mathenjwa
Keyword(s):  
South Africa ◽  
Local Government ◽  
Legal Status ◽  
Case Law ◽  
The Status ◽  
History Of ◽  
The Republic ◽  
First Time

The history of local government in South Africa dates back to a time during the formation of the Union of South Africa in 1910. With regard to the status of local government, the Union of South Africa Act placed local government under the jurisdiction of the provinces. The status of local government was not changed by the formation of the Republic of South Africa in 1961 because local government was placed under the further jurisdiction of the provinces. Local government was enshrined in the Constitution of the Republic of South Africa arguably for the first time in 1993. Under the interim Constitution local government was rendered autonomous and empowered to regulate its affairs. Local government was further enshrined in the final Constitution of 1996, which commenced on 4 February 1997. The Constitution refers to local government together with the national and provincial governments as spheres of government which are distinctive, interdependent and interrelated. This article discusses the autonomy of local government under the 1996 Constitution. This it does by analysing case law on the evolution of the status of local government. The discussion on the powers and functions of local government explains the scheme by which government powers are allocated, where the 1996 Constitution distributes powers to the different spheres of government. Finally, a conclusion is drawn on the legal status of local government within the new constitutional dispensation.

HISTORY OF MEDICINE DEVELOPMENT IN TURKISTAN

2020 ◽  
Vol 3 (3) ◽  
pp. 63-67
Author(s):  
Mamarazok Tagaev ◽  
Keyword(s):  
History Of Medicine ◽  
Local Population ◽  
Russian Empire ◽  
Medicine Development ◽  
History Of ◽  
Russian Military ◽  
The Russian Empire

In the article, after the conquest of the Russian Empire in the province, hospitals were opened for the Russian military and turned them into a hospital. Opened hospitals in Tashkent, Samarkand and Kattakurgan and outpatients for women and men. However,the local population, fearing doctors in uniform, did not want to contact them and turned to healers and paramedics

The Antonov rebel detachments in the territory of the Balashov uyezd of the Saratov gubernia (1920–1921)

2020 ◽  
pp. 45-51
Author(s):  
Sergei V. Lyovin
Keyword(s):  
Civil War ◽  
Local Population ◽  
Local History ◽  
Local Authorities ◽  
Archival Material ◽  
History Of ◽  
The Way

The Civil War is one of the largest tragedies in the history of our country. One of its dramatic episodes is the rebel movement led by A.S. Antonov which took place in the Tambov gubenia in 1920–1921 and was brutally suppressed by the Bolsheviks. Its scope is evidenced by the fact that it went beyond the borders of the Tambov gubernia. Separate detachments of Antonovites from the autumn of 1920 to the summer of 1921 raided the territory of the Balashov uyezd of the neighboring Saratov gubernia. The paper attempts to consider the way the uyezd authorities fought the rebels and the way civilians treated them. On the basis of an analysis of the local archival material most of which has not yet been put into scientific circulation, periodicals and the local history literature the author comes to the following conclusion: every time the invasions of Antonov’s detachments into the territory of the Balashov uyezd were so rapid that the local authorities did not manage to organize a proper rebuff, and the peasants, for the most part, supported the rebels since they saw spokesmen and defenders of their interests in them. Only frequent requisitions of peasants’ property by Antonovites as well as the replacement of the surplus appropriation system (Prodrazvyorstka) by the tax in kind (Prodnalog) led to the fact that since the spring of 1921 the support of the rebels by the local population ceased.

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