scholarly journals Conservation genetics of conflict in the Asian elephant, Elephas maximus

2021 ◽  
Author(s):  
◽  
Kristin (Kris) Budd

The Asian elephant (Elephas maximus) is an endangered species whose distribution spans 13 countries in south, southeast, and insular Asia. The primary threats to the survival of this species include direct conflict, primarily in the forms of poaching and crop-raiding, as well indirect conflict such as habitat loss and fragmentation. Due to the elephant's elusive behavior within their dense vegetative habitat and the fact that their large size presents handling dangers to researchers and elephants, research increasingly relies on noninvasive monitoring combined with a diverse assemblage of genetic tools. This dissertation uses conservation genetics to evaluate major conflict and conservation issues for Asian elephants. The first study, in the Bago Yoma region of Myanmar, evaluates the impact of direct human-conflict in a high-density area of humans and elephants. Here elephants are heavily impacted by the developing skin trade, and condensed populations frequently raid local farms forined the overall population structure and gained demographic insights as to what defines a crop-raider. The second study, conducted in the Nakai plateau elephant population of Lao PDR, compared and contrasted the diversity and demography of a population of high conservation value before and after the construction of a hydroelectric dam. The results revealed a seasonally shifting population, unique from the previous occupants of the plateau, and a decline in genetic diversity. In the final study, genetic data from across the species' range was used to identify hotspots of genetic diversity despite marker selection bias, a problem frequently encountered in conservation genetic studies. The results highlight the evolutionary distinctiveness and conservation value of populations, particularly in southeast Asia, for conservation management of this iconic species.

2020 ◽  
Author(s):  
Himanshu Gupta ◽  
Beatriz Galatas ◽  
Arlindo Chidimatembue ◽  
Wilson Simone ◽  
Gloria Matambisso ◽  
...  

Abstract Large-scale programs targeting Plasmodium falciparum (Pf) elimination can exert strong selection pressures on the parasite population. To better understand the impact that elimination initiatives can have on Pf genetic structure and gametocyte carriage, we applied amplicon-based sequencing of two polymorphic Pf genes and quantitative reverse-transcription PCR targeting gametocyte-specific genes to Pf isolates collected in Magude District (Southern Mozambique) before and after an elimination initiative. The 71% reduction of Pf prevalence achieved in 2 years was followed by reductions in Pf genetic diversity and increases in between-infection similarity. These genetic shifts were accompanied by increases in the relative transcript number of the female mature gametocyte marker pfs25, the pfap2g transcription factor that drives gametocytogenesis and the sexual ring marker pfgexp02, suggesting the parasite ability of adapting its sexual investment during elimination initiatives. Reactive interventions that target Pf sexual stages may be required to achieve complete interruption of transmission.


2010 ◽  
Vol 12 (2) ◽  
pp. 413-422 ◽  
Author(s):  
Marissa A. Ahlering ◽  
Simon Hedges ◽  
Arlyne Johnson ◽  
Martin Tyson ◽  
Stephanie G. Schuttler ◽  
...  

2012 ◽  
Vol 77 (5) ◽  
pp. 998-1007 ◽  
Author(s):  
P. Imrat ◽  
M. Hernandez ◽  
S. Rittem ◽  
N. Thongtip ◽  
S. Mahasawangkul ◽  
...  

2016 ◽  
Vol 85 (7) ◽  
pp. 1225-1232 ◽  
Author(s):  
Chaleamchat Somgird ◽  
Supaphen Sripiboon ◽  
Sittidet Mahasawangkul ◽  
Khajohnpat Boonprasert ◽  
Janine L. Brown ◽  
...  

2018 ◽  
Vol 15 (1) ◽  
pp. 55-72
Author(s):  
Herlin Hamimi ◽  
Abdul Ghafar Ismail ◽  
Muhammad Hasbi Zaenal

Zakat is one of the five pillars of Islam which has a function of faith, social and economic functions. Muslims who can pay zakat are required to give at least 2.5 per cent of their wealth. The problem of poverty prevalent in disadvantaged regions because of the difficulty of access to information and communication led to a gap that is so high in wealth and resources. The instrument of zakat provides a paradigm in the achievement of equitable wealth distribution and healthy circulation. Zakat potentially offers a better life and improves the quality of human being. There is a human quality improvement not only in economic terms but also in spiritual terms such as improving religiousity. This study aims to examine the role of zakat to alleviate humanitarian issues in disadvantaged regions such as Sijunjung, one of zakat beneficiaries and impoverished areas in Indonesia. The researcher attempted a Cibest method to capture the impact of zakat beneficiaries before and after becoming a member of Zakat Community Development (ZCD) Program in material and spiritual value. The overall analysis shows that zakat has a positive impact on disadvantaged regions development and enhance the quality of life of the community. There is an improvement in the average of mustahik household incomes after becoming a member of ZCD Program. Cibest model demonstrates that material, spiritual, and absolute poverty index decreased by 10, 5, and 6 per cent. Meanwhile, the welfare index is increased by 21 per cent. These findings have significant implications for developing the quality of life in disadvantaged regions in Sijunjung. Therefore, zakat is one of the instruments to change the status of disadvantaged areas to be equivalent to other areas.


2017 ◽  
Vol 11 (3) ◽  
pp. 255
Author(s):  
Jeky El Boru

Abstract: This research aims to analyze the impact of Janti Flyover Construction toward the growth of layout at Janti Urban Area, including structured space, open space, and linkage. Method used for data collecting are observation, air photograph monitoring, and interview, whereas the analysis method is qualitative description, which is the superimposed method of two layers, that are the layout condition before and after flyover construction. The result shows that the impact of Janti Flyover construction can be seen on building mass (solid), the increasing number of open spaces, including the road network, parking place, and park, whereas the relation between spaces, visually and structurally, can be seen on the growth of buildings which have new shapes and styles, therefore the performance of the overall building does not have a proportional shape. Considering Janti Street at the collective relation, its role is getting stronger as the main frame road network.Keywords: Flyover construction, layout changing, Janti AreaAbstrak: Penelitian ini bertujuan untuk menganalisis pengaruh pembangunan Jalan Layang Janti terhadap perkembangan tata ruang Kawasan Janti, meliputi ruang terbangun, ruang terbuka, serta hubungan antar ruang (“linkage”). Metode pengumpulan data dilakukan melalui observasi, pengamatan foto udara, dan wawancara; sedangkan metode analisis melalui deskripsi secara kualitatif yang berupa “superimposed method” dari dua lapisan kondisi lahan, yakni kondisi tata ruang sebelum dan sesudah pembangunan jalan layang. Hasil penelitian menunjukkan bahwa pengaruh pembangunan Jalan Layang Janti terdapat pada massa bangunan (“solid”), pertambahan ruang terbuka yang berupa jaringan jalan, parkir, dan taman; sedangkan pada hubungan antar ruang ̶ secara visual dan struktural ̶ yakni tumbuhnya bangunan dengan bentuk dan gaya baru, sehingga bentuk tampilan bangunan secara keseluruhan tidak proporsional. Pada hubungan kolektif, Jalan Janti semakin kuat perannya sebagai kerangka utama jaringan jalan.Kata kunci : Pembangunan jalan layang, tata ruang, Kawasan Janti


1970 ◽  
Vol 5 (1) ◽  
pp. 77
Author(s):  
Mahadzir Ismail ◽  
Saliza Sulaiman ◽  
Hasni Abdul Rahim ◽  
Nordiana Nordin

The Financial Master Plan (2001- 2010) aims to enhance the capacity of banking industry so that higher effic iency and productivity can be reaped in the future. This study seeks to determine the impact of merger on the efficiency and productivity ofcommercial banks in Malaysia for the period 1995 until 2005. The study uses a non-parametric approach, nam ely DEA (data envelopment analysis?) to estimate the efficiency scores and to construct the Malmquist productivity index. To enable this estimation, three bank inputs and outputs are used. Amongst the findings are those banks exhibit higher efficiency score after the merger and thefo reign banks are more efficient than the local banks. Productivity of the banks is calculated in both periods, before and after the merger: The results show that, it is the local banks that have improved the most after the merger. The main source of productivity is technical change or innovation. The findings support the existing policy of having larger domestic banks in term of size.


2018 ◽  
Vol 7 (1) ◽  
pp. 8-17
Author(s):  
Mahsa Assadi

This study reports a pre-experimental research on the impact of metacognitive instruction on EFL learners’ metacognitive awareness and their listening performance. To obtain the goal of the study, a group of 30 Iranian intermediate EFL learners, including 14 males and 16 females, were selected randomly. Their ages range from 20 to 24. The participants took part in 16 weeks’ intervention program based on metacognitive pedagogical sequence consisted of five stages. The metacognitive awareness listening questionnaire (MALQ), and a listening test were also used to find changes in metacognitive awareness and listening performance before and after the treatment. The results of comparing pre and posttests scores revealed that metacognitive instruction raised the learners’ metacognitive awareness and helped them improve their listening comprehension ability.


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