Effect of different management techniques on bird taxonomic groups on rice fields in the Republic of Korea

AbstractMany bird species rely on the ecological functions of rice field habitats (e.g., paddy, levee, road, and ditch). However, recent intensive practices are causing rice fields to provide fewer suitable habitats. This study examined bird habitat usage and how it is affected by cultivation methods (e.g., eco-friendly vs conventional fields). Eco-friendly and conventional rice fields in the midwestern region of the Republic of Korea were surveyed from January 2014 to December 2016, and the species presence, number of birds, and locations of observed habitats were recorded. It was found that shorebirds and herons used more eco-friendly rice paddies with lower or no pesticide and/or herbicide use, while waterfowl used paddy habitats more than the other habitats, regardless of the amounts of pesticides and/or herbicides used. Land birds used ditches or roads in conventional rice fields more than those in fields that used pesticides and/or herbicides. Pesticide and/or herbicide use affected bird taxonomic groups differently. Consequently, the use of habitats by different bird taxonomic groups varied depending on the crop cultivation as well as the cultivation methods. These results provided valuable information for managing rice fields, which serve as habitats for birds.

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Effect of Different Management Techniques on Bird Assemblages on Rice Fields in the Republic of Korea

10.21203/rs.3.rs-551000/v1 ◽

2021 ◽

Author(s):

Green Choi ◽

Min Seock Do ◽

Seok-Jun Son ◽

Hyung-Kyu Nam

Keyword(s):

Rice Field ◽

Bird Species ◽

Rice Fields ◽

Ecological Functions ◽

Chemical Substances ◽

Bird Assemblages ◽

Management Techniques ◽

The Republic ◽

Suitable Habitats ◽

Farm Crop

Abstract Many bird species rely on the ecological functions of rice field microhabitats. However, recent intensive practices are causing rice fields to provide fewer suitable habitats. This study examined bird microhabitat usage and the effects of intensive use of chemical substances on it. Eco-friendly and conventional rice fields were surveyed from January 2014 to December 2016, and the species presence, the number of birds, and the location of observed microhabitats were recorded. It was found that shorebirds and herons used more eco-friendly rice paddies with fewer or no chemical substances, while waterfowl used the paddy microhabitat more than the other microhabitats, regardless of the amount of chemical substances used. It was confirmed that land birds used ditches or roads in conventional rice fields more than those in fields that used chemical substances. Chemical substances affected bird assemblages differently. Consequently, bird assemblages used habitats differently depending on the farm crop cultivation as well as food abundance. These results provided valuable information useful for managing rice fields that serve as habitats for birds.

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Anuran Community Patterns in the rice fields of the mid-western region of the Republic of Korea

Global Ecology and Conservation ◽

10.1016/j.gecco.2020.e01448 ◽

2021 ◽

Vol 26 ◽

pp. e01448

Author(s):

Min Seock Do ◽

Seok-Jun Son ◽

Green Choi ◽

Nakyung Yoo ◽

Kyo-Soung Koo ◽

...

Keyword(s):

Rice Fields ◽

Republic Of Korea ◽

Western Region ◽

Community Patterns ◽

The Republic

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Movement characteristics of 14 migratory bird species wintering in the Republic of Korea between 2014 and 2020

Journal of Preventive Veterinary Medicine ◽

10.13041/jpvm.2020.44.4.193 ◽

2020 ◽

Vol 44 (4) ◽

pp. 193-200

Keyword(s):

Bird Species ◽

Migratory Bird ◽

Republic Of Korea ◽

Movement Characteristics ◽

The Republic

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Tick surveillance of migratory birds during 2010–2011 on Hong and Heuksan Islands, Jeollanam Province, Republic of Korea

Systematic and Applied Acarology ◽

10.11158/saa.23.11.13 ◽

2018 ◽

Vol 23 (11) ◽

pp. 2214 ◽

Cited By ~ 2

Author(s):

Sung-Tae Chong ◽

Heung Chul Kim ◽

Jong-Gil Park ◽

Chang-Yong Choi ◽

Chang-Uk Park ◽

...

Keyword(s):

Disease Surveillance ◽

National Park ◽

Migratory Birds ◽

Bird Species ◽

Republic Of Korea ◽

Surveillance Program ◽

Haemaphysalis Longicornis ◽

Haemaphysalis Concinna ◽

Park Service ◽

The Republic

Migratory birds were captured, examined, banded and then released in accordance with a bird banding protocol of the Bird Research Center, National Park Research Institute, Korea National Park Service, from January-December 2010–2011 on Hong and Heuksan Islands, Jeollanam (Jeonnam) Province, in the Republic of Korea (ROK). Concurrently, ticks were collected from captured birds as part of a tick-borne disease surveillance program. A total of 381 ticks belonging to three genera and eight species – Ixodes turdus (297 ticks), Ixodes nipponensis (16), Haemaphysalis flava (46), Haemaphysalis longicornis (9), Haemaphysalis formosensis (5), Haemaphysalis ornithophila (6), Haemaphysalis concinna (1), and Amblyomma testudinarium (1)—were collected from 32 bird species belonging to 3 families. This is the first host report of A. testudinarium (1 nymph) collected from White’s Thrush, Zoothera aurea (Aves: Passeriformes: Turdidae), in the ROK. Most ticks were collected from birds during the months of April (44.1%) and November (54.2%).

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Biological Risk for Hypogea: Shared Data from Etruscan Tombs in Italy and Ancient Tombs of the Baekje Dynasty in Republic of Korea

Applied Sciences ◽

10.3390/app10176104 ◽

2020 ◽

Vol 10 (17) ◽

pp. 6104 ◽

Cited By ~ 1

Author(s):

Giulia Caneva ◽

Daniela Isola ◽

Hyun Ju Lee ◽

Yong Jae Chung

Keyword(s):

Soil Nutrient ◽

Fungal Species ◽

Republic Of Korea ◽

Biological Risk ◽

World Heritage Sites ◽

Heritage Sites ◽

Shared Data ◽

The Rich ◽

The Republic ◽

Taxonomic Groups

Biological growth represents one of the main threats for the conservation of subterranean cultural heritage. Knowledge of the conditions which favour the various taxonomic groups is important in delineating their control methods. Combining our experience regarding hypogea in Italy and the Republic of Korea, we aim to perform a critical review and comparison of the Biodeterioration Patterns (BPs) found, the materials used, and the conservative treatments applied. For this purpose, we focused on Etruscan tombs (Italy, 7th to 3th century BC) and the ancient tombs of the Baekje Dynasty (Republic of Korea, 6th to 7th centuries AD), most of which have been designated UNESCO World Heritage Sites, collecting original and bibliographic data as well as official documents. Results highlight the rich biodiversity of the bacterial and fungal species. Phototrophs were observed only in niches with sufficient light and the development of roots was also detected. Changes in humidity and temperature, the nature of the soil, nutrient accumulation, and vegetation above the hypogea along with human activities explain the different BPs. The effects of biocide treatments are also discussed, such as the emergence of dangerous fungal species. The shared data also enhance the role of overlaying tumuli and vegetation as well as protective barriers to reduce biological risk.

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Morphology and molecular description of Wilmottia koreana sp. nov. (Oscillatoriales, Cyanobacteria) isolated from the Republic of Korea

Phytotaxa ◽

10.11646/phytotaxa.447.4.2 ◽

2020 ◽

Vol 447 (4) ◽

pp. 237-251

Author(s):

NAM-JU LEE ◽

YOSEPH SEO ◽

JANG-SEU KI ◽

OK-MIN LEE

Keyword(s):

New Species ◽

Phylogenetic Analyses ◽

Genetic Distances ◽

Republic Of Korea ◽

Tree Bark ◽

Transmission Electron ◽

Monophyletic Lineage ◽

The Republic ◽

Taxonomic Groups ◽

A New Species

Two types of Wilmottia (Cyanobacteria) were collected from the tree-bark of a tree on Mt. Gwanggyo in Suwon City, Gyeonggi-do and a rock wall of Haje Port, Geum River in Jeollabuk-do, Republic of Korea. Morphological observations using light microscopy (LM) and transmission electron microscopy (TEM) revealed that one species was Wilmottia murrayi (Coleofasciculaceae, Oscillatoriales) and the other had similar morphology to W. murrayi, with considerable genetic variations, and thus, it was described as a new species named Wilmottia koreana. Phylogenetic analyses of the 16S rRNA revealed that the family Coleofasciculaceae was clearly separated into taxonomic groups of each genus, and in them, Wilmottia forms a monophyletic lineage. W. koreana diverged the earliest, forming a unique clade separate from the others. Statistical analyses showed that the inter-species genetic distances of Wilmottia were significantly different from the intra-species distances (t-test, P < 0.001). Additionally, the secondary structures of D1–D1’, Box-B, and the V3 helices were different among the Wilmottia species. These results demonstrated that the proposed new Wilmottia species was unique in molecular traits. Therefore, we propose this to be a new species belonging to the genus Wilmottia with the name Wilmottia koreana sp. nov.

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