Estimation of Tree Species Diversity in Four Campuses of Roever Institutions using Simpsons Diversity Index

An, Gary; Thomas, Amy; Benickson, C; Dr, Chitra; Geethu, M; Augustine, Joshua; Rm, Mithun; Shiva, R; Kavipriya, J

doi:10.4172/2332-2543.1000135

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…While it was categorized as moderate if the value of H' is between 1 and 3, and it is categorized low if the value of H' < 1. The Shannon-Weiner diversity index was singled out as parameters to describe the distribution of each species in terms of the number of individuals by computing evenness (E) (Anandan et al 2014;Laksemi et al 2019;Siahaan et al 2019).…”

Section: Sum Of All Frequencymentioning

confidence: 99%

Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

Siburian

Trirbo²,

Angrianto³

2020

JSL

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Agathis labillardieri Warb is one of the copal-producing tree species that only distributed in Papua. In connection with regional development, the existence of this species has been a significant concern. Therefore, it is necessary to study the characteristics of A. labillardieri Warb in their natural growing areas in the natural protected forest of Siwi Momiwaren. The data were collected by using the line plot method systematic sampling method with nesting plot. The data were then analyzed to determine the species relative density, frequency, dominance, important value index (IVI), and growth characteristics. The results showed that A. labillardieri Warb had the highest IVI at all levels of growth, with the highest diversity index at the seedling level of 3,49. When viewed from the relationship of the presence of species with the characteristics of the growing site, the content of Mg and Na significantly affected the presence of this species in the natural forest area of South Manokwari Siwi Momiwaren.Keywords: Agathis labillardieri Warb, growing site characteristics, Siwi Momiwaren, West Papua

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Section: Sum Of All Frequencymentioning

confidence: 99%

Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

Siburian

Trirbo²,

Angrianto³

2020

JSL

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“…Simpson's diversity index was calculated to quantify the diversity of STs (Anandan et al, 2014). The structure of the Campylobacter population was visualized using both conventional MLST-and cgMLST-based minimum spanning trees (MST) to appreciate interrelationships and clusters among the Campylobacter isolates.…”

Section: Prevalence and St Diversity In Surface Watermentioning

confidence: 99%

"Everything comes from somewhere"

Mulder¹

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The emergence and spread of infectious diseases, especially zoonoses, is complex and depends on various determinants or drivers, including their interrelations at the human-animal-environment interface (HAEI). This thesis provides novel insights into the potential role of environmental transmission in the epidemiology of selected exemplary zoonotic pathogens (i.e. Campylobacter, Shiga toxin-producing E. coli O157, and non-typhoid Salmonella) that are typically considered as foodborne pathogens. This was done mainly by studying some of their characteristics in the environment and the spatial associations between their incidence among human cases and the level of exposure to local livestock density, using novel methods within an eco-epidemiological framework. In addition, this thesis explored the potential human health effects linked to extreme rainfall events and the spatial association between the urban-rural gradient and the diversity and composition of the human gut microbiome. Chapter 2 showed that direct exposure to pluvial floodwater, and activities leading to such exposure, are associated with an increased risk of developing acute gastroenteritis (AGE) and acute respiratory infection (ARI). Chapter 3 showed that surface water is mainly contaminated with Campylobacter originating from meat-producing poultry (i.e. broilers and turkeys) in areas with high poultry densities and from wild birds in recreational waters and WWTP discharge points. The results of Chapter 4 and 5 revealed that human STEC O157 infections can be caused by environmental exposure to small ruminants besides food, while the route of transmission of Salmonella and Campylobacter to humans is mainly foodborne. Chapter 6 revealed that bacterial diversity, richness and composition of the adult gut microbiome are associated with the urban-rural gradient in the Netherlands. This thesis showed that we cannot ignore the role of the environment in mediating the transmission of (foodborne) zoonotic pathogens from livestock and wildlife, and more holistically in shaping the human gut microbiome. However, evidence about specific routes of transmission (e.g. air-borne, via soil or water) and their relative importance, was not provided. To study all interactions between different drivers of zoonotic pathogens, we recommend future studies to focus on pathogen transmission and their related transmission pathways to be able to look beyond the three drivers of change included in the One Health disease triangle (humans, animals, environment). This can be visualized by including a white triangle based on the Gestalt idea that the sum of visual perception is more than its parts. This triangle illustrates the interactions to include to study zoonotic pathogens and provide a complete picture of how they may influence one another. This visualization can be considered as a first step towards further unraveling the complexity of zoonotic pathogens by showing “the complete picture” or at least an attempt to do so, to, in the end, achieve optimal health outcomes.

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Investigating domestic gardens landscape plant diversity, implications for valuable plant species conservation

Al-Kofahi,

Al-Kafawin,

Al-Gharaibeh

2023

Environ Dev Sustain

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Estimation of Tree Species Diversity in Four Campuses of Roever Institutions using Simpsons Diversity Index

Cited by 4 publications

References 6 publications

Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

"Everything comes from somewhere"

Investigating domestic gardens landscape plant diversity, implications for valuable plant species conservation

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