Cytogenetic Findings on 11,451 Cases of Amniocentesis in Hanoi, Vietnam

Tran, Christine; Nguyen, Van Bich; Nguyen, Minh Thu; Hoang, Lan; Ngo, Anh; Ngo, Toan Van; Ngo, Chau Quy; Mai, Hue; Tran, Tung Thanh

doi:10.5539/gjhs.v10n6p152

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…The nature reserve contains high biodiversity with more than 99% natural, non‐plantation forest, which is mainly evergreen broad‐leaved closed forest (Tran et al . 2021). The fauna is diverse with 80 species of mammals, 288 species of birds, 38 species of reptiles and 34 species of amphibians (Kon Chu Rang Nature Reserve 2021).…”

Section: Methodsmentioning

confidence: 99%

Using mobile smartphones and bioacoustics to monitor endangered bird species

Nguyen

Doherty

et al. 2023

Ibis

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Monitoring the status of endangered wildlife is a critical foundation for biodiversity conservation efforts. The use of autonomous acoustic recorders to monitor wildlife has become increasingly popular in terrestrial tropical systems. However, these recorders are expensive and not available for purchase and repair in all countries. The development of easy‐to‐use and low‐cost devices is therefore needed for applications worldwide. In this study, we modified and installed smartphone devices to operate and record sounds produced by the Vietnamese Crested Argus Rheinardia ocellata in Kon Chu Rang Nature Reserve, Vietnam, in 2021. We used the software package RAVEN to create spectrograms and to identify Crested Argus calls from acoustic recordings and used the program MARK to estimate occupancy and detection probabilities. We recorded calls of Crested Argus at 16 of 40 locations and most calls were recorded in the northern and eastern parts of the nature reserve. Our model‐averaged estimates of detection probabilities indicated that detection in the morning or afternoon was c. 0.50 and constant over seven sampling days. Our overall average occurrence probability of Crested Argus was 0.43 (standard error = ±0.08), but we found occupancy to be positively correlated with distance to the nearest village, indicating that poaching may negatively affect this species. Based on these data we suggest that the Kon Chu Rang Nature Reserve and possibly two adjacent nature reserves, namely An Toan Nature Reserve and Ba To Proposed Nature Reserve, might be important sites for Crested Argus.

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Section: Methodsmentioning

confidence: 99%

Using mobile smartphones and bioacoustics to monitor endangered bird species

Nguyen

Doherty

et al. 2023

Ibis

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“…in extensive mangrove forests in tropical minerogenic settings. In many places, these forests were considerably greater in extent than contemporary mangrove forests, including Australia (Woodroffe et al, 1985), the Mekong and Red River deltas of Vietnam (Tran and Ngo, 2000;Li et al, 2012), and the Great Songkla Lakes, Thailand (Horton et al, 2005). High rates of organic matter accumulation in this globally synchronous phase of blue carbon development sequestered an estimated 20-60 Pg.…”

Section: The Past: Sea-level Rise and Blue Carbon Accommodationmentioning

confidence: 97%

The Present, Past and Future of Blue Carbon

Rogers,

Kellway,

Saintilan

2023

Camb. prisms Coast. futures

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Blue carbon is identified as a natural climate solution as it provides multiple ecosystem services, including climate mitigation, adaptation, and other co-benefits. There remain ongoing challenges for blue carbon as a natural climate solution, particularly as blue carbon ecosystems are at risk from climate change. Concepts of uniformitarianism were applied to consider how the present and past behaviour of blue carbon ecosystems can inform decision-makers of blue carbon risks. Climate change may increase the capture and storage of blue carbon in the short to medium term; this is largely due to negative feedbacks between elevated atmospheric carbon dioxide and temperature, and supplemented by natural processes of sediment supply and accumulation. Opportunities for retreat and increasing carbon storage as sea levels rise are likely to be greater where sea level has a longer history of relative stability, largely in the Southern Hemisphere. Landward retreat will be crucial where millennia of sea-level rise have limited the capacity for in situ blue carbon additionality; this may be thwarted by highly developed coastal zones and coastal squeeze effects. Negative feedbacks may fail under higher emissions, greater warming and rates of sea-level rise exceeding ~5-7 mm yr. À1 ; this tipping point may be surpassed within the next century under a high emissions scenario. Retreat of blue carbon ecosystems to higher elevations where they are afforded protection from the effects of sea-level rise will be critical for blue carbon additionality. Carbon markets are prepared to incentivise restoration of blue carbon ecosystems as they adapt to climate change; however, knowledge gaps remain, particularly regarding the behaviour of blue carbon ecosystems in the global south. Given the momentum in blue carbon research, scientists and practitioners are well placed to continue addressing blue carbon risks. Impact statementThe role of coastal ecosystems in sequestering atmospheric carbon has been demonstrated and efforts are underway to leverage this service for climate change mitigation. Focussing largely on mangroves and saltmarshes, this paper applies concepts of uniformitarianism to consider how the present behaviour of blue carbon ecosystems (BCEs), and their response to varying sea level and climate change in the past, provides knowledge of BCE futures. There is evidence BCEs are being modified by climate change, and losses are compounded by ongoing clearance and degradation. Consequently, atmospheric warming, sea-level rise and human modifications have important implications for greenhouse gas fluxes from BCEs. Observations of the response of BCEs to sea-level rise indicate some capacity to adapt by accumulating mineral and organic material and increasing substrate elevations. Contributions of organic matter to substrates as sea level rises, coupled with landward retreat of BCEs to maintain their intertidal position, bolsters capacity to sequester atmospheric carbon within substrates and biomass. However, evidence of the response...

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Cytogenetic Findings on 11,451 Cases of Amniocentesis in Hanoi, Vietnam

Cited by 2 publications

References 17 publications

Using mobile smartphones and bioacoustics to monitor endangered bird species

Using mobile smartphones and bioacoustics to monitor endangered bird species

The Present, Past and Future of Blue Carbon

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