Structural implications of traditional agricultural landscapes on the functional diversity of birds near the Korean Demilitarized Zone

Kim, Jae Hyun; Park, Shinyeong; Kim, Seung Ho; Kang, Kyungsik; Waldman, Bruce; Lee, Myung Hwa; Yu, Minhye; Yang, Hyunyoung; Chung, Hyun Yong; Lee, Eun Ju

doi:10.1002/ece3.6880

Cited by 8 publications

(7 citation statements)

References 39 publications

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“…Historic sites include a wide range of natural areas, such as forests and oceans, but also historical manmade buildings or monuments. In addition, in areas such as the Demilitarized Zone (DMZ) in Korea, the distribution of biological species that are highly sensitive to artificial disturbances is high because of the relatively low human impact [72]. However, such cases only represent a small fraction, and most human activities and cultures are major factors causing a reduction in biodiversity.…”

Section: Human Culture and Freshwater Ecosystemsmentioning

confidence: 99%

Effect of the Human Utilization of Northern Snakehead (Channa argus Cantor, 1842) on the Settlement of Exotic Fish and Cladoceran Community Structure

Choi

Kim

2021

Sustainability

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Empirical studies suggest that changes in the density of top predators, such as carnivorous fish, in freshwater food webs, strongly affect not only fish communities but also various primary and secondary consumers. Based on these findings, we explored how differences in the utilization of carnivorous fish (i.e., Northern Snakehead, Channa argus) by humans affected the fish and cladoceran community structure as well as the settlement of exotic fish species (i.e., Lepomis macrochirus and Micropterus salmoides) in 30 wetlands located in the upper and lower reaches of the Nakdong River. Our results show that in the mid–lower reaches of the Nakdong River, the density of C. argus was low, while high densities of L. macrochirus and M. salmoides were observed. Exotic fish species are frequently consumed by C. argus, leading to a low density of L. macrochirus and M. salmoides in the upper reaches, which supported a high density of C. argus. However, in the mid–lower reaches, the density of L. macrochirus was high because of the frequent collection of C. argus by fishing activities. The dominance of L. macrochirus significantly changed the structure of cladoceran communities. L. macrochirus mainly feeds on pelagic species, increasing the density of epiphytic species in the mid–lower reaches. The continued utilization of C. argus by humans induced a stable settlement of exotic fish species and strongly affected the community structures of primary consumers in the 30 wetlands. The frequency of C. argus collection has to be reduced to secure biodiversity in the mid–lower reaches of the Nakdong River, which will reduce the proportion of exotic fish species and increase the conservation of native fish.

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Section: Human Culture and Freshwater Ecosystemsmentioning

confidence: 99%

Effect of the Human Utilization of Northern Snakehead (Channa argus Cantor, 1842) on the Settlement of Exotic Fish and Cladoceran Community Structure

Choi

Kim

2021

Sustainability

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“…We believe that the functional diversity measurement of South Korean herpetofauna will be more robust and improved in the future with consistent basic ecological studies for species, accumulating survey data, and increasing data availability in herpetofauna functional trait databases, such as AmphiBIO 54 . The findings will contribute to the understanding of the functional diversity of vertebrates in South Korea 4 . This study would be an imitable example of using spatio-temporally large-scale survey data to assess the nationwide biodiversity.…”

Section: Discussionmentioning

confidence: 82%

“…Functional traits can be defined in many ways including any traits that affect morphological, phenological, or physiological processes (e.g., respiration), life-history traits (e.g., growth), traits related to individual fitness or performance measures that can indirectly affect the fitness of an organism 1,2 . Because they can be generalized among similar habitats beyond the species level, functional trait-based indicators are useful tools for assessing the biodiversity of different geographic regions 3,4 . Additionally, using these advanced indicators, the ecological niche configuration of a community can be incorporated into biodiversity assessment 5 .…”

Section: Introductionmentioning

confidence: 99%

Functional group analyses of herpetofauna in South Korea using a large dataset

2023

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Functional traits are characteristics of species that affect their fitness and ecosystem, and they greatly influence ecological niches. Thus, biodiversity assessment based on functional groups rather than species per se can more realistically reflect the ecological niche space. As essential players of ecosystem functions, herpetofauna are appropriate subjects of functional trait-based analyses. In this study, using a nationwide dataset and applying trait information and ecological niche modeling, the richness within each functional group, and the taxonomic and functional diversity indices of South Korean herpetofauna were visualized to identify and compare the geographic distributions. The results revealed that the reptile community seemed more locally diverse with more overlapping randomized patterns among groups than amphibians, while amphibians showed wider distributions and a higher within-grid occurrence ratio. Functional diversity indices of reptiles also showed more randomized geographic patterns with higher levels at Jejudo Island than amphibians. The findings of this study may help to identify biodiversity hot spots and understand its ecosystem health. Increasing survey data and trait information will improve the assessment.

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“…We removed records related to species observed only flying over sites or occurring exclusively as migrants (Table S2). A functional dispersion index (Fdis, Laliberté and Legendre 2010 ) was calculated using the avian traits, based on foraging behaviour, morphology, ethology, and breeding behaviour (Kim et al 2020 ). We used Fdis, calculated using the ‘ FD ’ package in R (Laliberté et al 2014 ), to describe the overall functional diversity in the community, since it measures the mean distance of species in a community to the centroid of all species in that community, being less affected by extreme values than other functional indices.…”

Section: Methodsmentioning

confidence: 99%

The contribution of landscape features, climate and topography in shaping taxonomical and functional diversity of avian communities in a heterogeneous Alpine region

et al. 2022

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Understanding the effects of landscape composition and configuration, climate, and topography on bird diversity is necessary to identify distribution drivers, potential impacts of land use changes, and future conservation strategies. We surveyed bird communities in a study area located in the Central Alps (Autonomous Province of South Tyrol, northeast Italy), by means of point counts and investigated taxonomic and functional diversity at two spatial scales along gradients of land use/land cover (LULC) intensity and elevation. We also explored how environmental variables influence bird traits and red-list categories. Models combining drivers of different types were highly supported, pointing towards synergetic effects of different types of environmental variables on bird communities. The model containing only LULC compositional variables was the most supported one among the single-group models: LULC composition plays a crucial role in shaping local biodiversity and hence bird communities, even across broad landscape gradients. Particularly relevant were wetlands, open habitats, agricultural mosaics made up of small habitat patches and settlements, ecotonal and structural elements in agricultural settings, and continuous forests. To conserve bird diversity in the Alps, planning and management practices promoting and maintaining small fields, structural elements, and a mosaic of different LULC types should be supported, while preserving continuous forests at the same time. Additionally, pastures, extensively used meadows, and wetlands are key to conservation. These strategies might mitigate the impacts of global change on bird diversity in the Alps and in other European mountain areas.

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Structural implications of traditional agricultural landscapes on the functional diversity of birds near the Korean Demilitarized Zone

Cited by 8 publications

References 39 publications

Effect of the Human Utilization of Northern Snakehead (Channa argus Cantor, 1842) on the Settlement of Exotic Fish and Cladoceran Community Structure

Effect of the Human Utilization of Northern Snakehead (Channa argus Cantor, 1842) on the Settlement of Exotic Fish and Cladoceran Community Structure

Functional group analyses of herpetofauna in South Korea using a large dataset

The contribution of landscape features, climate and topography in shaping taxonomical and functional diversity of avian communities in a heterogeneous Alpine region

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