Management Plan of Whooper Swan(Cygnus cygnus) Habitat Using Causal Loop Analysis

Choi, Yun Eui; You, Soojin; Kang, Sung-Ryong; Choi, Bong-Su; Chon, Jinhyung

doi:10.13047/kjee.2015.29.3.353

Cited by 5 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in the estuary of the Nakdong River, one of the key wintering grounds, the population reached its peak at 4,219 individuals in December 2011, after which there were more than 3,000 in December 2013, February 2016, and November 2020, but the population decreased to under 1,500 during the rest of the wintering period (Wetlands and Birds Korea, 2014). This is because various developments and uses, fishing, construction activities, and noises taking place in the mainstream and estuary of the Nakdong River have threatened the wintering habitat (Hahm and Kim, 2001;Choi et al, 2015;Hong, 2020). In particular, the irregular fluctuations in freshwater discharge and blockade of seawater inflow after the construction of the Nakdong River Estuary Bank not only reduced the resting environment of whooper swans but also changed the water levels and sedimentation of the estuary (Kim, 2011;2013;Song et al, 2014), which expanded the area of Phragmites australis communities and reduced the density of Flatstalk bulrush tubers, while also affecting the population decrease (Yoon et al, 2007;Yi et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…The total height of the bridges, streetlights, and pylons installed downstream of the Nakdong River was more than 20 m, excluding the N.D.H.D.S.G Bridge and Busan-Gimhae Light Rail Transit, which required a distance of 736.3-1,678.8 m to overcome. However, since not only the height of the bridge but also the noises, speed, and visual disturbance generated by large trucks using the bridge have a negative effect on migration (Choi et al, 2015), a wider distance will be required considering these disturbance factors and young individuals in calculating the departure distance. In addition, Hong (2020) stated that the distance between bridges must be at least 4 km to ensure a safe boundary and gliding distance.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan

Lee

Cho

et al. 2022

J. People Plants Environ

View full text Add to dashboard Cite

Background and objective: Fragmentation of river ecosystems is expected to affect biodiversity loss, but bridge construction is proceeding without consideration in urban areas. This study was conducted to determine the effect of internal environmental factors and river ecosystem fragmentation caused by bridge construction on the population of wintering whooper swans (<i>Cygnus cygnus</i>) in the Nakdong River of Busan Metropolitan City, a key wintering site for whooper swans.Methods: To compare the wintering population according to the distance between bridges, we surveyed and analyzed the current status of the population by period, distance between bridges, and land cover. One-way ANOVA and post-hoc test were conducted to confirm whether the differences in the environmental factors of the wintering sites, such as the distance between bridges, land cover status, and the number of wintering individuals, were statistically significant.Results: 83.6-94.7% of the wintering population in the lower Nakdong River were observed in Sec. 2 (Nakdong River Estuary Bank-Seobusan Nakdong River Bridge, 5.3 km) and Sec.4 (Gamjeon-Iron Bridge-Nakdong River Hwaengdansugwan Bridge, 3.6 km). As for the distance between the feeding and resting places of whooper swans and the bridges, whooper swans used the waterside and wetlands at an average distance of 1,147.5 m (10.9-2,611.2 m) from the bridge.Conclusion: Considering the weight of male swans and the presence of young individuals, as well as disturbance factors such as the noise and speed of vehicles crossing the bridges, it is necessary to maintain at least a 4 km distance between bridges for stable wintering. In addition, since fragmentation of river ecosystems has been confirmed to have an adverse effect on biodiversity, it would be desirable to keep the ecosystem intact and connected.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan

Lee

Cho

et al. 2022

J. People Plants Environ

View full text Add to dashboard Cite

show abstract

“…and Nelumbo nucifera Gaertn. [107,108]. It is crucial to create a habitat for food sources that has suitable growing conditions.…”

Section: Transformation Plans For Resilient Wildlife Habitatsmentioning

confidence: 99%

Transformation Planning for Resilient Wildlife Habitats in Ecotourism Systems

et al. 2017

View full text Add to dashboard Cite

An ecotourism system that is based on wildlife habitats in ecological systems is considered a social-ecological system that has a feedback relationship with social systems. Increases in socioeconomic activities and tourism infrastructure construction are not conducive to the resilience of wildlife habitats, thereby stressing the ecological system and threatening sustainable ecotourism. Managing resilient wildlife habitats by developing transformation plans that can be used to construct new systems through self-organization and the absorption of stress is paramount to perpetuating sustainable ecotourism systems. This study aims to establish transformation plans to enhance the resilience of systems thinking regarding wildlife habitats. Such thinking involves the sequential application of dynamic thinking, causal thinking, closed-loop thinking, and the discovery of strategies. This study examines the case study of Eulsukdo Island in South Korea, and the following transformation plans are derived: (1) high-quality eco-education programs to help tourists become hard ecotourists; (2) subsidies for foraging area restoration; (3) ecosystem services of wildlife habitats; and (4) governance organization led by multiple actors. The results of this study can provide guidelines for the effective use of natural resources at ecotourism destinations and for the ecotourism development of damaged wildlife habitats.

show abstract

Applying the resilience principles for sustainable ecotourism development: A case study of the Nakdong Estuary, South Korea

Choi

Chon

2021

Tourism Management

View full text Add to dashboard Cite

Management Plan of Whooper Swan(Cygnus cygnus) Habitat Using Causal Loop Analysis

Cited by 5 publications

References 0 publications

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan

Transformation Planning for Resilient Wildlife Habitats in Ecotourism Systems

Applying the resilience principles for sustainable ecotourism development: A case study of the Nakdong Estuary, South Korea

Contact Info

Product

Resources

About

Management Plan of Whooper Swan(Cygnus cygnus) Habitat Using Causal Loop Analysis

Cited by 5 publications

References 0 publications

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (&lt;italic&gt;Cygnus cygnus&lt;/italic&gt;): Targeting the Nakdong River, Busan

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (&lt;italic&gt;Cygnus cygnus&lt;/italic&gt;): Targeting the Nakdong River, Busan

Transformation Planning for Resilient Wildlife Habitats in Ecotourism Systems

Applying the resilience principles for sustainable ecotourism development: A case study of the Nakdong Estuary, South Korea

Contact Info

Product

Resources

About

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan

Analyzing the Effect of River Ecosystem Fragmentation by Bridges on Changes in the Wintering Population of Whooper Swans (<italic>Cygnus cygnus</italic>): Targeting the Nakdong River, Busan