scholarly journals The Range Contraction and Future Conservation of Green Peafowl (Pavo muticus) in China

2021 ◽  
Vol 13 (21) ◽  
pp. 11723
Author(s):  
Mingxiao Yan ◽  
Bojian Gu ◽  
Mingxia Zhang ◽  
Wei Wang ◽  
Rui-Chang Quan ◽  
...  
Keyword(s):  
Conservation Planning ◽  
Camera Traps ◽  
Suitable Habitat ◽  
Anthropogenic Pressures ◽  
Maximum Entropy Modeling ◽  
The Past ◽  
Historical Archives ◽  
Historical Periods ◽  
Pavo Muticus ◽  
Green Peafowl

The Green Peafowl (Pavo muticus) is vulnerable to anthropogenic pressures and has undergone an extensive decline through much of its range in Southeast Asia. However, little is known about the changing distribution of Green Peafowl in China through historical periods. We described a 5000–6000 years distribution change of Green Peafowl in China by using historical archives. We examined the present distributions of Green Peafowl by using camera traps and transect surveys and predicted the suitable habitat to support future conservation planning for this species. Although Green Peafowl was once widely distributed across China, the species experienced a southward range retreat over the past 5000–6000 years and is now restricted to a small part of Yunnan. The results of prediction from maximum entropy modeling (MaxEnt) showed that the size of suitable habitat of Green Peafowl in Yunnan was 17,132 km2. The suitable habitat concentrated in nine prefectures of Yunnan and Pu’er, Chuxiong, and Yuxi accounted for 48.64%, 27.39% and 15.83%, respectively. These results suggest that central Yunnan can cover most of the current larger and more contiguous populations of Green Peafowl in China and should be protected. Moreover, some areas in southern Yunnan, such as Xishuangbanna, can be a candidate for reestablishing populations, given that the species disappeared in this region less than 20 years ago and has a large remaining habitat.

scholarly journals Status and distribution changes of the endangered Green Peafowl (Pavo muticus) in China over the past three decades (1990s‒2017)

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Dejun Kong ◽  
Fei Wu ◽  
Pengfei Shan ◽  
Jianyun Gao ◽  
Dao Yan ◽  
...  
Keyword(s):  
The Past ◽  
Pavo Muticus ◽  
Green Peafowl

scholarly journals Habitat dan Interaksi Spatio-Temporal Merak Hijau dengan Sapi dan Herbivora Besar di Taman Nasional Baluran

2019 ◽  
Vol 13 (1) ◽  
pp. 28
Author(s):  
Satyawan Pudyatmoko
Keyword(s):  
National Park ◽  
Negative Impact ◽  
Bird Species ◽  
Camera Traps ◽  
Wild Mammal ◽  
Hunting Pressure ◽  
Spatio Temporal ◽  
Pavo Muticus ◽  
Green Peafowl ◽  
Habitat Variables

Merak hijau (Pavo muticus muticus) adalah species yang terancam punah dengan populasi yang terus menurun. Burung ini adalah jenis yang dilindungi di Indonesia, dan hidup di beberapa sisa-sisa habitat yang kebanyakan sempit dan dengan tingkat perburuan tinggi. Hal ini menyebabkan risiko kepunahan yang tinggi. Penelitian ini dilakukan di Taman Nasional Baluran untuk menyelidiki pengaruh variabel habitat terhadap kemungkinan okupansi merak hijau serta interaksi spasial dan temporal antara merak hijau dengan sapi dan herbivora besar. Kehadiran merak hijau direkam dengan kamera trap dan variabel-variabel habitat diukur di tempat kamera trap dipasang. Penelitian ini menemukan bahwa kemungkinan okupansi merak hijau paling baik dijelaskan oleh model yang tidak melibatkan peran variabel habitat. Selain itu, ditemukan pula bahwa pola interaksi merak hijau dengan sapi mirip dengan pola interaksi merak hijau dengan sebagian besar herbivora besar. Tidak ada dampak negatif sapi terhadap kehadiran dan aktivitas harian merak hijau. Burung ini memiliki daya adaptasi yang cukup tinggi terhadap kondisi lingkungan yang berbeda. Penurunan populasi di Jawa mungkin lebih disebabkan karena tekanan perburuan yang tinggi daripada perubahan habitat. Habitat and Spatio-Temporal Interaction Between Green Peafowl with Cattle and Megaherbivores in Baluran National Park  Abstract Green peafowl (Pavo muticus muticus) is an endangered species, whose population is continuously declining. It is protected animal in Indonesia that occurs in remnant, and sometime small habitat with high hunting pressure, that made the animal prone to extinction. This study was conducted to investigate the influence of habitat on the occupancy probability of green fowl as well as the interaction between green peafowl and free-range cattle and wild mammal in Baluran National Park. The presence of animals in the study was recorded by camera traps, and the habitat variables were measured in the locations, where the camera traps were installed. The research found that the occupancy of green peafowl best explained by the model that not include any habitat variables. The pattern of interaction between green peafowl and domesticated cattle was similar to those of between green peafowl and the majority of wild mammal. There was no evidence of negative impact of domesticated cattle on the spatial occurrence as well as temporal activity of green peafowl. Green peafowl is a bird species with high adaptability to various environmental conditions. The population decrease of this animal in Java might be mainly due to high hunting pressure than habitat change.

scholarly journals Animal Coronavirus Diseases: Parallels with COVID-19 in Humans

Viruses ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1507
Author(s):  
Chao-Nan Lin ◽  
Kuan Rong Chan ◽  
Eng Eong Ooi ◽  
Ming-Tang Chiou ◽  
Minh Hoang ◽  
...  
Keyword(s):  
Genome Organization ◽  
Clinical Signs ◽  
Feline Infectious Peritonitis ◽  
Viral Shedding ◽  
Related Disease ◽  
The Past ◽  
Treatment And Prevention ◽  
Historical Archives ◽  
Huge Impact ◽  
Novel Coronavirus

Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel coronavirus in humans, has expanded globally over the past year. COVID-19 remains an important subject of intensive research owing to its huge impact on economic and public health globally. Based on historical archives, the first coronavirus-related disease recorded was possibly animal-related, a case of feline infectious peritonitis described as early as 1912. Despite over a century of documented coronaviruses in animals, the global animal industry still suffers from outbreaks. Knowledge and experience handling animal coronaviruses provide a valuable tool to complement our understanding of the ongoing COVID-19 pandemic. In this review, we present an overview of coronaviruses, clinical signs, COVID-19 in animals, genome organization and recombination, immunopathogenesis, transmission, viral shedding, diagnosis, treatment, and prevention. By drawing parallels between COVID-19 in animals and humans, we provide perspectives on the pathophysiological mechanisms by which coronaviruses cause diseases in both animals and humans, providing a critical basis for the development of effective vaccines and therapeutics against these deadly viruses.

scholarly journals Social structure and demography of a remnant Asian elephant Elephas maximus population and the implications for survival

Oryx ◽  
2020 ◽  
pp. 1-6
Author(s):  
Lauren J. Hale ◽  
Kun Shi ◽  
Tania C. Gilbert ◽  
Kelvin S.-H. Peh ◽  
Philip Riordan
Keyword(s):  
Social Structure ◽  
Population Size ◽  
Total Population ◽  
Camera Traps ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Effective Density ◽  
Anthropogenic Pressures ◽  
Sex Ratio Bias ◽  
Elephant Population

Abstract The Asian elephant Elephas maximus is at risk of extinction as a result of anthropogenic pressures, and remaining populations are often small and fragmented remnants, occupying a fraction of the species' former range. Once widely distributed across China, only a maximum of 245 elephants are estimated to survive across seven small populations. We assessed the Asian elephant population in Nangunhe National Nature Reserve in Lincang Prefecture, China, using camera traps during May–July 2017, to estimate the population size and structure of this genetically important population. Although detection probability was low (0.31), we estimated a total population size of c. 20 individuals, and an effective density of 0.39 elephants per km2. Social structure indicated a strong sex ratio bias towards females, with only one adult male detected within the population. Most of the elephants associated as one herd but three adult females remained separate from the herd throughout the trapping period. These results highlight the fragility of remnant elephant populations such as Nangunhe and we suggest options such as a managed metapopulation approach for their continued survival in China and more widely.

Marx and the mirage of change: Notes from South Africa

2021 ◽  
pp. 194277862110478
Author(s):  
Sagie Narsiah
Keyword(s):  
South Africa ◽  
Capitalist Development ◽  
Capitalist System ◽  
The Past ◽  
Material Conditions ◽  
The Relationship ◽  
Historical Periods ◽  
Spatial Content

There is little doubt that the understanding of the dynamics of capitalism has been enriched by Geography. Moreover, geographers utilizing Marxist/Marxian lenses have provided valuable insights into the spatial content of the system. Over the past two decades or so, geographers in no small way have contributed to the demystification of capitalism/capitalist development in its neoliberal incarnation – change as mirage. Furthermore, poverty, inequality, unemployment and related social ills are directly linked to the system. Indeed, they are produced by the system. In this paper, the geographical evolution of the capitalist system in South Africa is examined. Critical thinkers, among them Marxists, influenced the theorization of the relationship(s) between capitalism, apartheid, class and race. In this paper, I focus on the spatial aspects, which in my view have been neglected. I reflect on various historical periods – the apartheid era and the post-apartheid era, in particular. What is apparent is that neoliberalism in South Africa has entered a phase which I label “accumulation by corrupt means”. The class basis of this strategy is examined. Critical (Marxist) geographers are shaped by the direct experiences of material conditions. I describe my experiences in this regard.

Salt marshes adjustment to anthropogenic pressures and sea-level rise

2021 ◽  
Author(s):  
A. Rita Carrasco ◽  
Katerina Kombiadou ◽  
Miguel Amado
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Salt Marshes ◽  
Anthropogenic Pressures ◽  
The Past ◽  
Ria Formosa ◽  
Sediment Loads ◽  
Human Interventions ◽  
South Portugal ◽  
And Sea Level

<p>It is predictable that salt marshes in regions, where sediment loads are high, should be stable against a broader range of relative sea level scenarios than those in sediment-poor systems. Despite extensive theoretical and laboratory studies, additional syntheses of marsh ‘persistence’ indicators under human interventions and accelerated sea-level rise rates are still needed. This study investigates the recent lateral changes occurring in lagoon-type marshes of the Ria Formosa lagoon (south Portugal) in the presence of human interventions and sea-level rise, to identify the major drivers for past marsh evolution and to estimate potential future trends. The conducted analysis assessed the past geomorphological adjustment based on imagery analysis and assessed its potential future adjustment to sea-level rise (~100 years) based on modelled land cover changes (by employing the SLAMM model within two sea-level rise scenarios).</p><p>Salt marshes in the Ria Formosa showed slow lateral growth rates over the last 70 years (<1 mm∙yr<sup>-1</sup>), with localized erosion along the main navigable channels associated with dredging activities. Higher change rates were noted near the inlets, with stronger progradation near the natural inlets of the system, fed by sediment influx pulses. Any potential influence of sea-level increase to an intensification of marsh-edge erosion in the past, could not be distinguished from human-induced pressures in the area. No significant sediment was exchanged between the salt marshes and tidal flats, and no self-organization pattern between them was observed in past. The related analysis showed that landcover changes in the salt marsh areas are likely to be more prominent in the future. The obtained results showed evidence of non-linearity in marsh response to high sea-level rise rates, which could indicate to the presence of critical thresholds and potential negative feedbacks within the system, with significant implications to marsh resilience.</p>

scholarly journals Cultural Memory and Urban Space in Shaping Cultural Identity

2019 ◽  
pp. 160-183
Author(s):  
Valentyna Bohatyrets ◽  
Liubov Melnychuk
Keyword(s):  
Urban Space ◽  
Cultural Memory ◽  
Urban Landscape ◽  
Late 20Th Century ◽  
The Past ◽  
Historical Archives ◽  
City Space ◽  
New Type ◽  
The City ◽  
Historic Cities

Nowadays, in the age of massive spatial transformations in the built environment, cities witness a new type of development, different in size, scale and momentum that has been thriving since late 20th century. Diverse transformation of historic cities under modernisation has led to concerns in terms of the space and time continuity disintegration and the preservation of historic cities. In a similar approach, we can state that city and city space do not only consist of present, they also consist of the past; they include the transformations, relations, values, struggles and tensions of the past. As it could be defined, space is the history itself. Currently, we would like to display how Chernivtsi cultural and architectural heritage is perceived and maintained in the course of its evolution. Noteworthy, Chernivtsi city is speculated a condensed human existence and vibes, with public urban space and its ascriptions are its historical archives and sacred memory. Throughout the history, CHERNIVTSI’s urban landscape has changed, while preserving its unique and distinctive spirit of diversity, multifacetedness and tolerance. The city squares of the Austrian, Romanian and Soviet epochs were crammed with statuary of royal elites and air of aristocracy, soviet leaders and a shade of patriotic obsession, symbolic animals and sacred piety – that eventually shaped its unique “Bukovynian supranational identity”. Keywords: Chernivtsi, cultural memory, memory studies, monuments, squares, identity.

The Morphological Interaction of the Four Faculties in the Historical System of W. B. Yeats’s A Vision

2017 ◽  
Author(s):  
Graham A. Dampier
Keyword(s):  
Historical Development ◽  
William Butler Yeats ◽  
The Past ◽  
Historical Periods ◽  
Historical System

William Butler Yeats’ elucidation of A Vision’s historical system in “Dove or Swan” represents the historical present as the reconciliation of past moments. The Four Faculties define history as the perpetual co-existence of historical periods and allow for a vision of historical development that always reflects on the past in order to make sense of the present. This essay argues that the interaction of the Faculties on the “line of coterminous periods” can be understood in terms of Spengler’s morphology of history as analytically analogous. The past influences the present, and can be said to constrain it, but it is the Will’s ability to reconcile the strife between the Tinctures that allows for novelty in this grand system of deterministic continuity. Previous discussions of the Yeats-Spengler connection have overlooked the importance of the Faculties and the four interacting periods of history, which this article only begins to address.

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