• Title/Summary/Keyword: Research Diversity

Search Result 4,074, Processing Time 0.028 seconds

Diversity, Interspecific Interaction and Abundance of Undergrowth in Monocultures and Integrated Systems of Natural Rubber Plantation in Danzhou, Southern China

  • Chima, Uzoma Darlington;Qi, Dongling;Wu, Zhixiang;Lan, Guoyu;Chen, Li
    • Journal of Forest and Environmental Science
    • /
    • v.38 no.2
    • /
    • pp.75-89
    • /
    • 2022
  • The negative impact of monoculture rubber plantations on biodiversity and associated ecological processes/ecosystem services has led to suggestions on the use of integrated land use systems for rubber cultivation and production in order to ensure environmental sustainability. However, there is paucity of information on the effect of such integrated land use systems on the diversity and abundance of the rubber plantation undergrowth. We evaluated and compared undergrowth plant species composition, richness, abundance, diversity and interaction, in three integrated systems (Rubber-Strelitzia reginae Integrated System - RSrIS, Rubber-Podocarpus nagi Integrated System - RPnIS & Naturally Managed Rubber Plantation - NMRP) with three Rubber Monoculture Plantations (RMP1, RMP2 & RMP3) adjacent to the integrated systems, respectively, at the Investigation and Experiment Station of Tropical Crops, Danzhou, Hainan, China. Undergrowth species density was higher in the rubber monocultures than in the integrated systems except in RSrIS. Species richness and diversity were also higher in the monocultures except in NMRP. Species similarity/interaction between the monocultures and the integrated systems was highest between RMP3 and NMRP. The NRMP proved to be the best model of natural rubber integrated system for the conservation of undergrowth species richness, diversity and interspecific interaction. However, the conservation of undergrowth species in other forms of integrated natural systems can be enhanced by considering the ecology of species to be integrated in terms of their growth characteristics, competitive nature, and ability to grow in association with other species.

Analysis of Genetic Diversity across Newly Occupied Habitats within the Goryeong Population of Pungitius kaibarae Using the Mitochondrial Cytb Gene (미토콘드리아 Cytb 유전자를 이용한 잔가시고기의 신규 서식지 고령 회천 집단의 유전적 다양성 분석)

  • Kang-Rae Kim;Mu-Sung Sung;Yujin Hwang;Myeong Seok Lee;Ju Hui Jeong;Heesoo Kim;Jeong-Nam Yu
    • Korean Journal of Ichthyology
    • /
    • v.35 no.4
    • /
    • pp.217-223
    • /
    • 2023
  • The 886-bp sequence of the mitochondrial region encoding the cytb gene was used to identify the origin of the Goryeong (GR) population of Pungitius kaibarae and to characterize genetic diversity and structure among wild populations. The GR population showed the lowest haplotype diversity (Hd=0.000), while the highest haplotype diversity was confirmed at 0.755 among the Goseoung (GS) population. Nucleotide diversity ranged was the highest diversity at 0.00291 in the GS population and the lowest diversity at 0.00000 in the GR population. The GR population was genetically closest to the Pohang (PH) population. The haplotype network confirmed that the GR population was most similar to the PH population. The GR population also clustered with the PH population with high bootstrap support (98%) in a phylogenetic tree. We thus conclude that the GR population is derived from a population similar to the PH population.

A study on the relationship between foreign professionals and organizational innovative performance and the moderating role of diversity-friendly HRM (외국인 전문 인력과 조직 혁신성과간의 관계 및 다양성 친화형 인적자원관리의 조절역할에 대한 연구)

  • Lee, Jin Kyu;Kim, Tai Gyu;Kim, Hack Soo;Lee, Jun Ho
    • Knowledge Management Research
    • /
    • v.14 no.2
    • /
    • pp.137-154
    • /
    • 2013
  • In an ever-tougher competitive environment caused by globalization, domestic companies are increasingly adopting business strategies aimed at continuously securing competitive advantage by taking advantage of globally-competitive foreign professionals. Despite a persistent rise of such trend, domestic researches regard migrant workers as the socially underprivileged, and delve into the issue of migrant workers from the policy, welfare, and ethical perspectives. With a growing need to deal with migrant professionals from the strategic viewpoint - to acquire professional talent in an era of global competition, it becomes essential to verify the real effectiveness of migrant professionals. Yet, there has been relatively little discussion of it. This study assumes that based on th137e integration-learning perspective on diversity, the greater the number of foreign professionals, the greater the effect on organizational innovative performance. Also could be effective in managing diversity is diversity-friendly HRM which involves eliminating discrimination against migrant professional workers and treating them fairly. Based on the data collected from 72 domestic companies, this study conducted an empirical analysis of the impact of the percentage of foreign professionals in the total workforce on organizational innovative performance and of the moderating role of diversity-friendly HRM. The results show that the proportion of foreign professionals in the entire workforce has had no significant impact on organizational innovative performance, and that the proportion of foreign professionals in the total workforce and diversity-friendly HRM have had a interaction effect on organizational innovative performance. Based on these research results, the study attempted to interpret the significance of the proportion that migrant professionals make up of the total workforce and of diversity-friendly HRM in relation to organizational innovative performance, and their implications for diversity management.

  • PDF

Distribution Characteristics and Diversity of Alpine and Subalpine Plants Growing Naturally in National Parks (국립공원 내 자생하는 고산 및 아고산식물의 분포 특성과 다양성)

  • Hyun-Hee Kim;Hyeong-Jin Yoon;Jin-Won Kim
    • Journal of Environmental Science International
    • /
    • v.33 no.6
    • /
    • pp.367-382
    • /
    • 2024
  • Alpine and subalpine plants are isolated and distributed in mountaintop areas at high altitudes and, are among the species most vulnerable to global warming. If the rate of warming continues at its current rate, it is highly likely that this species will be unable to find new refugia and will be the last to go extinct in their current habitats. Therefore, research on the distribution and diversity of alpine and subalpine plants is urgently needed and is important from the perspective of biodiversity conservation. Therefore, this study focused on the distribution of alpine and subalpine plants native to national parks. Alpine and subalpine plants distributed across the 12 national parks accounted for approximately half (47.78%) of all alpine plants in Korea. The average relative frequency of occurrence was 0.23, plant similarity between national parks was 37.19%, and beta diversity was 0.63. The number of species was positively correlated with the latitude, elevation, and area of the national park. Thus the geographical distributions of alpine and subalpine plants haves distinct spatial specificities and physical environmental differences.

Latitudinal Variation of the Number of Species and Species Diversity in Shelled Gastropods of Eastern Coast of Korea (위도구배에 따른 한국 동해안 암반조하대 복족류의 출현 종 수 및 종다양성 변이)

  • Son, Min-Ho;Lee, Jeong-Woo;Moon, Chang-Ho;Kim, Sung;Chun, Chan-Kil
    • The Korean Journal of Malacology
    • /
    • v.20 no.2
    • /
    • pp.159-164
    • /
    • 2004
  • In the present study we examined latitudinal trend of the number of species and species diversity of rocky subtidal shelled gastropods. Specimens were sampled from four wave-exposed sites along the eastern coast of Korea between Sockcho (38$^{\circ}$14"N_ and Busan (35$^{\circ}$06"N), covering a range of over ca. 440 km and 4$^{\circ}$ of latitude. At a small local scale, the number of species showed a latitudinal trend, decreased with decreasing of latitude, even though no clear trends in species diversity were detected. The present result, consequently, suggest that regulation of small-scale local diversity presumably results from the difference of the local micro-environment.

  • PDF

The Influence of Transformational Leadership on Employees' Innovation in Universities of UAE: Mediating Effect of Technological Diversity

  • ALMASKARI, Tariq Humaid;MOHAMAD, Effendi;YAHAYA, Siti Norbaya;JALIL, Muhammad Farhan
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.7
    • /
    • pp.657-669
    • /
    • 2021
  • This study seeks to empirically investigate the impact of transformational leadership on employees' innovation with the mediating effect of technological diversity. Employees have evolved into leaders in organizing work within institutions over the last few decades. This shift presents new demands for leaders, who are forced to reinvent individual workers while also improving workplace innovation. This research proposes a conceptual model for considering transformational leadership and the impact of technological diversity on innovation. Structured questionnaire is used in the study and the analysis of the data from 633 employees of universities in the United Arab Emirates uses stratified sampling technique and hypotheses verified through Structural Equations Modelling (AMOS-21). According to the results, transformational leadership has a big effect on employees' innovation. Furthermore, in the relationship between transformational leadership and workforce innovation, technological diversity has a partial mediation impact. This research adds to the growing body of knowledge about how transformational leadership influences employees' innovation and how it affects employees' success, especially in the context of UAE-based universities. Overall, this research contributes to the previous studies wherein transformational leadership plays a critical role in influencing the innovative performance of employees and that, in turn, will promote diversification of technology in the organization.

The Effect of Openness to Diversity on Innovative Behavior: The Mediating Effect of Unit-members Trust (장병의 다양성 수용도가 혁신행동에 미치는 영향: 부대원 신뢰의 매개효과)

  • Jeon, Je-Man;Park, Chun-Seok;Moon, Sung-Ok
    • Asia-Pacific Journal of Business
    • /
    • v.12 no.4
    • /
    • pp.211-225
    • /
    • 2021
  • Purpose - This study deals with the Openness to Diversity(OD) of soldiers in the military organization for efficient unit operation of the military organization composed of various soldier. The purpose of this study was to examine the effects of information and value OD on innovative behavior and the mediating effect of unit-members trust. Design/methodology/approach - The 269 samples of this study were surveyed on army soldiers. The Exploratory Factor Analysis (EFA), the multiple regression, bootstraping analysis were hired in order to analyze the data. Findings - The results showed that the information & value OD were positive(+) effect on innovative behavior. Unit-members trust showed a mediation effect between OD and innovative behavior. Research implications or Originality - First, according to Defense Reform 2.0, the military is expected to be composed of more diverse classes in the future. There is a theoretical contribution that examine their perception of diversity within the military. Second, OD was confirmed as a variable predicting the innovative behavior of soldiers and unit-memeber trust mediate the relationship between OD and invative behavior.

The Effects of Diversity Management in a Deluxe Hotel on F & B Employees' Job Engagement and Organizational Commitment (특급 호텔의 다양성 관리가 식음료 종사원의 직무열의 및 조직몰입에 미치는 영향)

  • Jung, Hyo Sun;Yoon, Hyo Sil;Yoon, Hye Hyun
    • Korean journal of food and cookery science
    • /
    • v.32 no.3
    • /
    • pp.363-369
    • /
    • 2016
  • Purpose: The purpose of this study was to understand the interrelationships among diversity management, employees' job engagement, and organizational commitment in a deluxe hotel. Methods: In a total of 344 F & B employees obtained from empirical research, this study reviewed the reliability and fitness of the research model and verified a total of 4 hypotheses using the Amos program. Results: The proposed model provided an adequate fit to the data, $x^2$=316.722 (df=112), CMIN/df=2.828, GFI=0.899, NFI=0.941, IFI=0.961, TLI=0.953, CFI=0.961, RMSEA=0.073. SEM results showed that diversity management (building cultural awareness: ${\beta}$=0.206; pragmatic management policy; ${\beta}$=0.315) had a positive and significant influence on job engagement. Also, employees' job engagement (${\beta}$=0.623) had significant positive effects on organizational commitment. Conclusion: This study shows diversity management of hotel employees and its effectiveness as well as which diversity management is needed positive attitude.

Genetic diversity and relationship analyses of the Korea native black goat line using microsatellite markers

  • Ho-Chan, Kang;Kwan-Woo, Kim;Eun-Ho, Kim;Cheol-Hyun, Myung;Jung-Gyu, Lee;Hyun-Tae, Lim
    • Korean Journal of Agricultural Science
    • /
    • v.48 no.4
    • /
    • pp.693-702
    • /
    • 2021
  • The aim of this study was to analyze the genetic diversity and distance of the Korean native black goat line. Thus far, this Korean native black goat line has not been studied intensively, especially in genetic diversity and relationship studies in comparison with other breeds. In total, eleven microsatellite (MS) markers were used to evaluate alleles from 391 Korean native black goats and foreign hybrid animals. The genetic diversity index was evaluated based on the allele distributions. Four Korean native black goat lines showed expected ranges of observed heterozygosity, expected heterozygosity, and polymorphism information content (PIC) values for use in genetic diversity research (0.509 - 0.643, 0.434 - 0.623 and 0.356 - 0.567). Lines from the Korean native black goat and foreign hybrid were clearly separated according to principal coordinates analysis (PCoA), phylogenetic tree and tended to be clustered in each Korean native black goat line. Thus, this study can be used for analyzing the genetic relationships between Korean native black goats and foreign breeds for line preservation and for fundamental information to determine breed improvement strategies.

How Does The Capital Market Respond To Diversity Management? Lessons From The U.S. Firms' Valuation With Respect To Their LGBT Policies (자본시장은 기업의 다양성 성과에 어떻게 반응하는가? 미국 기업 의 소수 성정체성 옹호 정책에 대한 자본시장의 기업가치 평가 간의 관계를 중심으로)

  • Hannah Oh;Sang-Joon Kim
    • Asia-Pacific Journal of Business
    • /
    • v.14 no.1
    • /
    • pp.171-194
    • /
    • 2023
  • Purpose - This study starts with the question of whether the capital market is likely to give positive valuations to companies that pursue diversity in their management and corporate governance structure. In this study, minority gender identity is considered as a diversity issue in management that has a socially negative perception. Design/methodology/approach - This study analyzed the relationship between corporate value in the capital market and the policies of companies that advocated minority gender identities, based on listed U.S. company data. Findings - This study finds that companies that support minority gender identities had a lower Tobin's q value than companies that did not. However, in the case of authenticity in terms of corporate governance diversity, the study finds that companies that advocate minority gender identities rather receive high firm valuation. In particular, companies with a high percentage of female directors show high corporate value even when implementing policies that support minority gender identities. Research implications or Originality - This study explores the capital market's response to diversity using past data in the U.S., but provides more practical implications for how companies should respond to a situation where an advocacy policy, based on more social recognition, for LGBT groups is established in Korea.