Papers by Mullica Jaroensutasinee
In this study,the effects of body size,burrow ownership and handedness on fighting success of mal... more In this study,the effects of body size,burrow ownership and handedness on fighting success of male fiddler crab, Uca annulipes (H. Milne Edwards, 1837) were investigated. Forty-six pairs of naturally engaged combats between residents and intruders were observed,and their fighting durations were recorded. After finishing each combat,the character of the winner (larger/smaller,resident/intruder) was identified, and afterwards the crabs were caught to identify their handedness (right/left claw), and to measure their carapace widths and major claw lengths. In addition, 40 non-fighting male crabs were caught randomly from the population,their handedness identified,and carapace widths and major claw lengths measured. Results showed that only larger males in the population were involved in combats. Residents,as well as, larger males won higher numbers of combats. Heteroclawed (opposite handed) combats were more common than homoclawed (same handed). Fighting duration was negatively correlat...
This study investigated the effect of climate change (i.e. changes in rainy days, dry days, maxim... more This study investigated the effect of climate change (i.e. changes in rainy days, dry days, maximum and minimum temperature) on mangosteen production in three regions of Thailand, which grow mangosteen: southern, eastern and northeastern regions. In the eastern region, the number of rainy days decreased and the number of dry days increased over a period of more than twenty years. There was no trend in changes in maximum and minimum temperature over the years in all three regions, except for the minimum temperature in the eastern region, which increased over the years. Mangosteens in the southern region tended to flower offseason, with two harvest periods in December-February and June-August and a shorter harvesting duration than in the eastern region. On the other hand, mangosteen in the eastern region flowered in season, and had one harvest period between February-April. The amount of mangosteen production in the southern region did not differ from the eastern region. The soil depth in the southern region was shallower than in the northeastern region. Plant Available Water (PAW) in the southern region was lower than in the northeastern region. PAW decreased and stayed low for a period of time before the flowering time in the southern and eastern regions. The mangosteen production in the southern and eastern regions increased as the drought period before flowering increased.
Walailak Journal of Science and Technology (WJST), 2017
This study aims to develop a risk score to identify people at high risk for type 2 diabetes melli... more This study aims to develop a risk score to identify people at high risk for type 2 diabetes mellitus (T2DM) in the population of Chonburi, Thailand, and to compare this risk score with 2 previous predictive risk scores for T2DM. Data from 7,284 individuals aged ≥ 20 years were collected from the Thai population, using a cross-sectional analytical study method. A screening algorithm was developed based on the first half and validated in the second half of the study population. Logistic regression analysis was used to determine the risk factors for T2DM, by performing a predictive model in which only significant factors were included. Afterwards, our predictive model was compared with the other 2 predictive models, where risk scores were derived from Thai adults. Our results showed that significant predictive variables were age, BMI, hypertension, history of diabetes in parents or siblings, and marital status. A cutoff score of 9 out of 17 produced the optimal sums of sensitivity (74 %) and specificity (97 %). The area under the receiver-operating characteristics curve (AUC) was 0.969. Our predictive model had a higher AUC when compared to the other 2 models. When the risk score was applied, the predictive model selected 425 subjects who should undergo further testing for diagnosing diabetes and 3,259 subjects who should not. A simple T2DM risk score, based on a set of variables, can be used for the investigation of early intervention to delay or prevent T2DM in Thailand.
Walailak Journal of Science and Technology, Oct 31, 2017
A visualization of comprehensive data on health care enhances performance of decision-making in h... more A visualization of comprehensive data on health care enhances performance of decision-making in health promotion programs. We describe the design and prototype of a Dashboard Decision Support System (DDSS) as a web-based advanced tool for executives and health officers to plan and generate effective programs in health promotion and disease prevention. Data were obtained from 10 communities surrounding oil refinery, using Family and community Assessment Program (FAP), in operation since 2010. The system was developed using web-based technology and open standards, i.e., MySQL, PHP, Highcharts JS, and Google Maps. Perception of the system and its effectiveness were evaluated using a questionnaire after participants had had an approximately one month period of experience of using the system. The responses to the questionnaire were positive about the system features and system process. Using the DDSS, executives and health officers can deploy effective and appropriate programs to enhance health care in their communities.
The Network of Biodiversity Information Database System (NBIDS) for area-based research, West Tho... more The Network of Biodiversity Information Database System (NBIDS) for area-based research, West Thong Pha Phum project has been developed for collecting Thai biodiversity data, and providing advanced tools for querying, analyzing, modeling, and visualizing patterns of species distributions for researchers and scientists. Google Earth KML and ArcGIS were used as tools for map visualization. webMathematica was used for simple data visualization and also for advanced data analysis and visualization, e.g., spatial interpolation, and statistical analysis.
Civil Engineering Journal, Nov 1, 2022
This study investigated coral and reef fish recovery following the COVID-19 event between low and... more This study investigated coral and reef fish recovery following the COVID-19 event between low and high environmental disturbance reefs at Racha Yai Island, Southern Thailand. Three and four 50-m permanent line transects were set at low and high environmental reefs to collect the percent of live coral cover, fish diversity and abundance, and fish trophicfunctional groups based on diet and habitat use. Our results showed a significant rise in the percentage of live coral cover, the number of individual fish, the number of fish species, and species richness at both bays following the COVID-19 lockdown due to a crucial reduction in human activities on the reef. In addition, there were increases in the number of corallivore fishes belonging to Chaetodontidae and Pomacentridae families and a reduction of omnivorous fish at the fish-feeding tourist attraction reefs due during the COVID-19 lockdown due to reducing fish-feeding tourism. This indicated that restricted human activities and reduced anthropogenic stress on a coral reef may have substantial shortterm impacts on reef fish diversity. Our insights could help designate guidelines to manage tourist impacts on coral reefs and aid in their prolonged persistence.
Emerging Science Journal
The objective of this study was to investigate the differences in climatic factors and fruit qual... more The objective of this study was to investigate the differences in climatic factors and fruit quality between on- and off-season production periods. Climate, soil, and mangosteen measurements were all studied during on- and off-season production. We chose 40 mangosteen trees and observed flowering and fruit set rates over two production periods. The results showed that the number of flowers per branch, the number of fruits per branch, the circumference of fruits, and the fruit weight were higher during the on-season mangosteen production period than during the off-season mangosteen production period. However, the number of edible pulp segments, peel thickness, percentage of translucent flesh, and fruit gumminess were lower in the on-season mangosteen production period than in the off-season mangosteen production period. The percentage of fruit scars did not differ between the on- and off-season mangosteen production periods. When compared to the on-season mangosteen production period...
Journal of Environmental Biology, 2018
Non-timber forest products (NTFPs) are an important aspect of forests and forest use in many part... more Non-timber forest products (NTFPs) are an important aspect of forests and forest use in many parts of the world. The present study aims at examining how local communities have changed their ways of NTFP utilization in the Parah forest after Khao Nan National Park was designated as a national park in the year 2009.
Journal of Animal Behaviour and Biometeorology, 2019
Investigating the time activity budgets of fiddler crabs is very important to determine the effec... more Investigating the time activity budgets of fiddler crabs is very important to determine the effects of sex and body size on allocating time for different activities. Few previous studies investigated the effects of sex and body size on time allocations in underground mating species. This study determines the effects of sex, size and their interaction on time allocations in a surface mating species (Tubuca rosea (Tweedie, 1937)). The surface activities of large and small, male and female crabs were video recorded. Afterwards time allocations for various activities (e.g., feeding, standing (vigilance), walking, inside burrows, grooming, burrowing, mating, and for males only, fighting and claw-waving) were calculated. All crabs spent most of their time on feeding than on other activities. Smaller crabs spent more time being vigilant, whereas larger crabs spent more time on courtship displays (grooming, and waving), and fighting. Between sexes, females spent more time standing, but less time on walking and grooming than males. Predation risk, reproductive maturation, breeding/non-breeding season, and energy conservation could be important factors for shaping time allocations in T. rosea.
Journal of Animal Behaviour and Biometeorology, 2020
Usually, Culex mosquitoes are responsible for spreading several human diseases such as malaria, J... more Usually, Culex mosquitoes are responsible for spreading several human diseases such as malaria, Japanese encephalitis, yellow fever, filariasis, and Zika. Lymphatic filariasis and Zika cases are increasing in Thailand with more prevalent in southern Thailand. In this study, our aim is to examine how seasons and water container types affect Culex spp. larvae numbers in Lansaka district, Nakhon Si Thammarat province, southern Thailand. This study was conducted in five sub-districts (Lansaka, Khaokaew, Thadi, Kamlon, and Khunthale) in Lansaka district. In each subdistrict, 120 houses were randomly selected to study the breeding sites of Culex mosquito in dry (March-May, 2018) and wet (October-December, 2018) seasons. Mosquito larvae were collected from indoor, outdoor, natural, artificial, darkcoloured, light-coloured, with lid, and without lid containers. It was observed that in all sub-districts, Culex larvae numbers were higher in dry season compared to wet season. In both seasons, outdoor, without lid, dark-coloured, and artificial containers contained more Culex larvae than inside, with lid, light-coloured, and natural containers, respectively. This study shows that seasons and water container types affect Culex mosquito larvae. Since the larvae numbers are higher in dry season, as well as in outdoor, without lid, dark-coloured, and artificial containers, people should reduce the usage of these containers, especially in the dry season, to prevent Culex borne diseases.
DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2011
The climatic, vegetation and soil characteristics of several tropical montane cloud forests in so... more The climatic, vegetation and soil characteristics of several tropical montane cloud forests in southern Thailand were investigated. Automatic weather stations were installed at three study sites: Mt. Nom cloud forest, Dadfa cloud forest and Mt. Nan Headquarters. HOBO U23 Pro V2 Temperature/Relative Humidity data loggers along the Mt. Nom elevational transect at five sites (500, 700, 900, 1,100 and 1,300 m) were installed for measuring air temperature and relative humidity. Soil samples along the Mt. Nom elevational transect at the same five sites were collected and soil pH, soil moisture and organic content were measured in the laboratory. Tree height, shrub width, leaf thickness, leaf area and epiphyte cover of every Lithocarpus bennettii (Miq.) Rehd. tree found along the Mt. Nom cloud forest elevational transect starting at 313 m and ending at 1,274 m were measured. Of the three sites, Mt. Nom cloud forest had the lowest air temperature, dew point, heat index, solar radiation, solar energy and UV index. Soil moisture and soil organic content increased with increasing elevation. The soil pH ranged from 3.6 to 4.3 which indicated that soil at Mt. Nom is high acidic.
Walailak Procedia, Mar 1, 2018
This study investigated the effects of container types, and water qualities on numbers of Aedes m... more This study investigated the effects of container types, and water qualities on numbers of Aedes mosquito larvae. Mosquito larvae were collected from nine sub-districts with ten households per sub-district in Trang province in March 2017 (i.e. Nongtrut, Natoming, Khuanpring, Bangrak, Khoklo, Banpho, Namphud, Tubtheang, and Nayongtai districts). We collected mosquito larvae in water containers using fishnets (0.55 mm mesh size) and preserved the mosquito larvae in 70% ethanol in the laboratory. We grouped containers in three groups (jar and tank, dustbins and others such as areca nut preservation jars and animal food bowls). We recorded water qualities in each container (presence of vegetation and algae, water level, odour, turbidity, temperature and pH). We identified the mosquito larvae to genus level and counted the numbers. We calculated the mosquito larvae indices (House index (HI), (Breteau index (BI), and Container index (CI)). For this study, we focused only on Aedes species; other species were discarded. We observed that container types, presence of algae in water, water odour, temperature and pH did not have effects on Aedes species larval numbers. Larval numbers were higher in clear and without vegetation water than in turbid and vegetative water, respectively. In addition, 50-75% of water level in the containers was the most preferred level for the Aedes species. Among nine sub-districts, Khoklo, Banpho, and Tubthiang had the highest HI, and Tubthiang had the highest BI and CI.
Coral reef ecosystems are being degraded through multiple disturbances that are becoming more fre... more Coral reef ecosystems are being degraded through multiple disturbances that are becoming more frequent and severe . This study examined storm impact on coral reef and its recovery using landscape mosaics technique . This technique demonstrated an off - the - shelf underwater camera and the Adobe Photoshop software, end - users in developing countries with limited resources could use the video mosaics technique for reef monitoring and documenting storm impacts . The landscape mosaic technique was used to document the tropical storm impact on coral communities at Racha Island within 3 - 5 m of water depth . This video - mosaic method provided a spatially landscape view of the reef benthos . The images from the landscape mosaic method revealed that after the storm on November 2012 , 20 % of the coral cover disappeared within the first month and continued to die off within the six month after the storm . Two years after storm, the results from the images still revealed some slightly increases in the percentage of coral cover but not significant . Most of the coral destroyed by the storm were foliaceous coral - i . e . Montipora sp . This study clearly demonstrates that the physical disturbance on coral reef, community changes and its recovery can be monitored using the two - dimensional landscape mosaic technology .
Walailak Journal of Science and Technology, Jun 1, 2006
Current systems for automatic chromosome classification are interactive and require human interve... more Current systems for automatic chromosome classification are interactive and require human intervention for correct separation between touching and overlapping chromosomes. Special separation methods are required to segregate chromosomes because they are non-rigid objects. This study develops a new technique to separate overlapping chromosomes based on computational geometry. This technique requires the identification of all possible cut points from the contour line of overlapping chromosomes, using Voronoi diagrams and Delaunay triangulations to select the four target cut points and cut overlapping chromosomes into two chromosomes. We test our algorithm on 35 overlapping chromosome images and find that 28 out of 35 overlapping chromosomes images can be separated correctly (i.e. 80.0 %). Three out of the 35 images are separate incorrectly (i.e. 8.6 %) and four out of 35 images are not separable by our algorithm (i.e. 11.4 %).
National Biodiversity Database System (NBIDS) has been developed for collecting Thai biodiversity... more National Biodiversity Database System (NBIDS) has been developed for collecting Thai biodiversity data. The goal of this project is to provide advanced tools for querying, analyzing, modeling, and visualizing patterns of species distribution for researchers and scientists. NBIDS data record two types of datasets: biodiversity data and environmental data. Biodiversity data are specie presence data and species status. The attributes of biodiversity data can be further classified into two groups: universal and projectspecific attributes. Universal attributes are attributes that are common to all of the records, e.g. X/Y coordinates, year, and collector name. Project-specific attributes are attributes that are unique to one or a few projects, e.g., flowering stage. Environmental data include atmospheric data, hydrology data, soil data, and land cover data collecting by using GLOBE protocols. We have developed webbased tools for data entry. Google Earth KML and ArcGIS were used as tools ...
A flow line computational technique based on the D8 method using Mathematica was developed. The t... more A flow line computational technique based on the D8 method using Mathematica was developed. The technique was applied to Ron Phibun area, Nakhon Si Thammarat Province. This area is highly contaminated with arsenic 3 and 5. It was found that the technique using Mathematica can produce similar results to those obtained from GRASS v 5.0.2.
In this study,the effects of body size,burrow ownership and handedness on fighting success of mal... more In this study,the effects of body size,burrow ownership and handedness on fighting success of male fiddler crab, Uca annulipes (H. Milne Edwards, 1837) were investigated. Forty-six pairs of naturally engaged combats between residents and intruders were observed,and their fighting durations were recorded. After finishing each combat,the character of the winner (larger/smaller,resident/intruder) was identified, and afterwards the crabs were caught to identify their handedness (right/left claw), and to measure their carapace widths and major claw lengths. In addition, 40 non-fighting male crabs were caught randomly from the population,their handedness identified,and carapace widths and major claw lengths measured. Results showed that only larger males in the population were involved in combats. Residents,as well as, larger males won higher numbers of combats. Heteroclawed (opposite handed) combats were more common than homoclawed (same handed). Fighting duration was negatively correlat...
Journal of Environmental Biology, 2018
Seed predation and dispersal by scatter-hoarding rodents are important for plant population dynam... more Seed predation and dispersal by scatter-hoarding rodents are important for plant population dynamics and forest structure. In this study, the potential of red spiny rats () as predators, dispersers and scatter-hoarders of Parah () seeds was examined in Khao Nan National Park, Thailand. One thousand Parah seeds and 100 rats were used in this experiment. Ten seeds with one rat were set inside a cage. Infrared videos of seed predation and dispersal by the rats were made from 9:00-10:00 p.m. afterwards, the numbers of seeds predated (predated, undamaged, and partially predated), dispersed (non-removed, displaced and removed) and scatter-hoarded were recorded. The percentage of undamaged, predated and partially predated seeds, as well as of removed, non-removed, and displaced seeds differed significantly. In both males and females, most of the seeds were undamaged, followed by those predated and partially predated. Additionally, most of the seeds were not removed, followed by those removed and displaced. Both males (35%) and females (37%) scatterhoarded seeds, and the seed numbers did not differ between sexes. Body weight of rats was positively correlated with the percentage of predated seeds and negatively correlated with the percentage of undamaged seeds, but not with the potentially viable, non-removed, displaced, or removed seeds. Red spiny rats act as predators, dispersers and scatter-hoarders of Parah seeds. It indicates that these rats may play an important role in Parah population dynamics.
Tropical biomedicine, 2018
The aims of this study are to examine the effects of (1) socio-cultural practices of using differ... more The aims of this study are to examine the effects of (1) socio-cultural practices of using different types of water storage containers, and (2) seasons, on the numbers of Aedes aegypti and Aedes albopictus larvae in the five sub-districts of Lansaka district. We randomly selected 20 houses per sub-district per month, with a total of 600 households, and collected Aedes mosquito larvae from different types of containers (indoor/outdoor, natural/artificial, dark/light coloured, and with/without lids) during both the dry (March-May 2015) and wet (October-December 2015) seasons. Ae. aegypti and Ae. albopictus larvae found in each container were identified and counted. The larval indices (i.e., house index (HI), container index (CI), and Breteau index (BI)) were calculated for each sub-district, and for each season. Our results showed that socio-cultural practices of using different types of containers differed between sub-districts and seasons. Ae. albopictus larval indices were higher t...
This study investigated the prevalence of Aedes larvae in two different topographical areas (i.e.... more This study investigated the prevalence of Aedes larvae in two different topographical areas (i.e. seaside and mountainous area) and in two faith-based communities (i.e. Buddhist and Muslims). Samples were collected by using the stratified simple random sampling with a total of 400 households from all communities in 31 sub-districts. The results showed that Aedes larvae were mostly found in artificial containers including water containers in bathrooms, potted plants, animal pans, concrete tanks and water jars. Ae. albopictus larvae were found in higher numbers in the seaside area than in the mountainous area. All three Aedes larval indices: Container Index (CI), House Index (HI) and Breteau Index (BI), indicated a high risk of DHF transmission in both locations and faith-based communities. We also found that the HI in Muslim households was more than in Buddhist households.
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Papers by Mullica Jaroensutasinee