Habitat Characteristics of Anuran Species Inhabiting Rice Fields of Western Mid-South Korea

2019 ◽  
Vol 52 (4) ◽  
pp. 366-377
Author(s):  
Nakyung Yoo ◽  
◽  
Min Seock Do ◽  
Hyung-Kyu Nam ◽  
Green Choi ◽  
...  
2020 ◽  
Vol 27 (2) ◽  
pp. 107-115
Author(s):  
Seok-Jun Son ◽  
Green Choi ◽  
Min-Seock Do ◽  
Hyung-Kyu Nam

2021 ◽  
Vol 28 (6) ◽  
pp. 348-354
Author(s):  
Min Seock Do ◽  
Ki-Baek Nam

Studies on the distribution of species are important to understanding the interspecific ecological niche and habitat selection through geographic environmental information. Particularly, vipers in the same genus have been an important topic because they show differences in the preferred geographical environment, depending on the distance of the phylogenetic relationship. This study investigated the geographical environment of red-tongued pit vipers (Gloydius ussuriensis) and Central Asian pit vipers (Gloydius intermedius) in the mountainous area, Cheonmasan Mountain County Park, South Korea, from April 2012 to October 2014, to understand the relationships among their habitat characteristics and ecological niche. Red-tongued pit vipers mainly lived in low altitude, wet valley areas with a low solar reflectance, while Central Asian pit vipers inhabited high altitude, dry land with large amounts of sunshine. As a result, our study supports that the ecological niche of red-tongued pit vipers and Central Asian pit vipers, inhibiting in Cheonmasan Mountain was overlapped low according to the majority of geographical environmental variables. The differentiated diet preference might be took into consideration as one of the potential key factors to the ecological niche differentiation among two species.


2006 ◽  
Vol 31 (1) ◽  
pp. 198-205 ◽  
Author(s):  
Leopoldo M. Rueda ◽  
Heung-Cheul Kim ◽  
Terry A. Klein ◽  
James E. Pecor ◽  
Cong Li ◽  
...  

2016 ◽  
Vol 63 (4) ◽  
Author(s):  
Hyunbin Jo ◽  
Ju-Duk Yoon ◽  
Jeong-Hui Kim ◽  
Kwang-Seuk Jeong ◽  
Yuno Do ◽  
...  

In this study, we examined the ontogenetic changes in prey selection pattern of largemouth bass Micropterus salmoides (Lacepede, 1802) in accordance with habitat type. The stomach contents of largemouth bass were analysed with respect to predator size classes for two different habitats (Nakdong River main channel and the Upo Wetlands tributary) in South Korea, that differed in the diversity of potential prey items. The diversity (H′) of invertebrate diet items in stomach of largemouth bass was found significantly different between the study sites. Small large mouth bass (<100 mm) preferred to consume decapods and mayflies in the river and wet land systems respectively. Fishes >100 mm in the river and >200 mm in the wet land system preferred fish as their prey. Results demonstrated variations in composition of prey items as influenced by habitat characteristics as well as habitat use type, contributed to the delayed ontogenetic diet shift in the largemouth bass population.


2010 ◽  
Vol 33 (3) ◽  
pp. 229-236 ◽  
Author(s):  
Jung-Hyun Lee ◽  
Dae-Sik Park ◽  
Heon-Joo Lee ◽  
Ja-Kyeong Kim ◽  
Nam-Yong Ra

2021 ◽  
Author(s):  
Hong-Shik Oh ◽  
Maniram Banjade

Understanding the ecology of species at risk is extremely important for their conservation and management. Due to land clearing for urban expansion, agriculture, and the import of pets, several snake species including the red-tongue viper (Gloydius ussuriensis) on Jeju Island of South Korea, have become threatened. We studied morphology, distribution, habitat characteristics, diet, and reproduction of red-tongue viper to provide a higher understanding of species ecology. This species on average reach 242–580 mm snout-vent length and is found in a wide range of habitat from mountain forest to lowland areas. Adult snakes prey almost entirely on amphibians followed by mammals and centipedes. The mating usually takes place in spring and birth takes place in autumn. This study points out the major threats and ill-information if addressed will not only contribute to the conservation efforts but also improve the negative attitudes that people hold toward these fascinating animals. The ecological data of G. ussuriensis herein provides basic information which assists in designing the management technique for conservation. Similar applications may be generalized and used to other vulnerable species to detect and quantify population ecology and risks, bolstering conservation methods that can be used to optimize the efficacy of conservation measures.


2009 ◽  
Vol 15 (4) ◽  
pp. 246 ◽  
Author(s):  
Jeong-Hoon Kim ◽  
Graham R. Fulton ◽  
Hyun-Tae Kim ◽  
Sam-Rae Cho

Rice Oryza sativa fields are important surrogate habitats for many organisms. We monitored a colony of Black-winged Stilt Himantopus himantopus in rice fields, in the Seosan reclamation area of South Korea, from 1998-2005. Two methods of rice cultivation were employed there 1: aerial seeding on a large scale using planes 2: the traditional method of rice replanting, where rice seedlings are replanted after ploughing. The latter method destroyed all nests and was increasingly used over time as farmland was sold off to private farmers. Most nests were destroyed because the timing of ploughing and replanting overlapped with the nesting period of the Black-winged Stilt. We monitored the break-up of the colony into sub-colonies and single nests, then eventually the failure of the colony. Flooding, during episodes of heavy precipitation resulted in more nest failures than predation. Predation at Black-winged Stilt nests was considered opportunistic with birds the most frequent consumers of eggs. Finally, we make suggestions for future research in reclaimed areas, particularly by using rice fields as more biodiverse habitats.


2016 ◽  
Vol 34 (4) ◽  
pp. 361-364 ◽  
Author(s):  
Hyung-Kyu Nam ◽  
Miran Kim ◽  
Green Choi ◽  
Dooly Jang ◽  
Seung-Hye Choi ◽  
...  

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Sang Jin Lim ◽  
Ki Yoon Kim ◽  
Eui Kyeong Kim ◽  
Chang Wook Han ◽  
Yung Chul Park

Abstract Background Understanding the habitat characteristics of the endangered Siberian flying squirrel Pteromys volans is the first step in conserving and managing the forests it requires for nesting, gliding, and feeding. Therefore, in the present study, we characterized the habitats of P. volans using GIS analysis of 411 forest sites in South Korea where fecal droppings were found. Results Fecal signs of P. volans were found in various regions in South Korea, including the Baekdudaegan Mountains. GIS analysis with six environmental layers (vegetation type, wood-age class, diameter at breast height [DBH], crown density, elevation, and distance from stream) revealed that fecal signs of P. volans were more frequently found in broad-leaved deciduous forests (42%) located 200–399 m above sea level (43.1%) and 0–199 m from the nearest stream (53%), with 5th class wood-age (35.3%), middle size class DBH (51.1%), and high crown density (71%). Conclusions The present study provides information on the biotic and abiotic characteristics of P. volans habitats. In South Korea, the fecal droppings of P. volans were found predominantly old deciduous broadleaf forests. Further studies are needed to reveal whether the more frequent occurrence of P. volans dropping in broadleaf forests may be due to a particular preference of this species for the forests or to a simple reflection of the area of the broadleaf forests occupying a much larger area than other forest types in Korea.


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