scholarly journals Links between personality, early natal nutrition and survival of a threatened bird

2019 ◽  
Vol 374 (1781) ◽  
pp. 20190373 ◽  
Author(s):  
Kate M. Richardson ◽  
Elizabeth H. Parlato ◽  
Leila K. Walker ◽  
Kevin A. Parker ◽  
John G. Ewen ◽  
...  

There is growing recognition that variation in animal personality traits can influence survival and reproduction rates, and consequently may be important for wildlife population dynamics. Despite this, the integration of personality research into conservation has remained uncommon. Alongside the establishment of personality as an important source of individual variation has come an increasing interest in factors affecting the development of personality. Recent work indicates the early environment, including natal nutrition, may play a stronger role in the development of personality than previously thought. In this study, we investigated the importance of three personality metrics (activity, boldness and acclimation time) for estimating survival of a threatened species, the hihi ( Notiomystis cincta ), and evaluated the influence of early natal nutrition on those metrics. Our results showed that boldness (as measured from a one-off cage test) had a positive effect on the probability of juvenile hihi surviving to adulthood. There was also a tendency for juveniles that received carotenoid supplementation in the nest to be bolder than those that did not, suggesting that the early environment had some influence on the expression of boldness in juvenile hihi. Linking the development of personality traits with ultimate effects on vital rates may benefit conservation management, as it could enable developmentally targeted management interventions. To our knowledge, this study is the first to identify potential linkages between early natal nutrition, personality and fitness in a wild-living population. This article is part of the theme issue ‘Linking behaviour to dynamics of populations and communities: application of novel approaches in behavioural ecology to conservation’.

2020 ◽  
Author(s):  
Yuan Yin ◽  
Yurong Yu

BACKGROUND Currently, changing behaviors with the assistance of mobile applications has been popularized. However, most of the participants are unable to persist in participating in behavior-changing activities for a long time. Some researchers have studied what factors motivate people to maintain behaviors-changing actions. There has been controversy about whether the commonly used triggers, negative results or competitions, could motivate behavior changes. In the meantime, the main methodology these researchers have been using is to conduct experiments, from which data was collected from subjects’ recalling previous behavior changing. The experiments are time-consuming, and the results can be unreliable. To resolve this problem, the Ecological Momentary Assessment (EMA) was developed to record real-time feedback. However, the EMA unavoidably increases the workload of the subjects. OBJECTIVE This study investigated the factors affecting behavior change, especially from the motivation aspect. Additionally, this paper attempted to identify a way to record human behavior changes without increasing the subjects’ workload. METHODS The methodology of “self-report” was adopted to report how people’s views regarding the behavior-changing intervention. To achieve a balance between workload and being timely, the self-reporting data was recorded once a day. After the 28-day “self-report” experiment, the “focus group” method was used to gather people’s feedback on behavior changing process. RESULTS This paper identified 9 factors: cooperation, competition, award, understandable graphic, reminder and alarm, trust and willing, gender, relation with disease and environmental factors). These factors could affect motivation of behavior changing. Besides, we found that negative results could be a motivation for behavior changing. In the experiment, we also found that a small number of subjects tended to cheat for a more “beautiful” result. The last part of the paper has presented possible implications for technology design to facilitate behavior-changing. CONCLUSIONS In particular, (i) the research promoted the possibility of cheating when recording data which is ignored by existing research and will make the digital applications less useful; (ii) the results show that not all cooperation is needed to lead to a positive effect; (iii) the research identified the negative results caused by over-competition in behavior change. Finally, the paper proposes technology design directions should focus on giving motivation through keeping dairy, negative results feedback and avoid cheating.


Author(s):  
Kenneth J. Sher ◽  
Andrew Littlefield ◽  
Matthew Lee

This chapter discusses relations between personality and alcohol use disorder (AUD). After reviewing basic terms and concepts in personality research, two major areas of contemporary research are discussed. The first area concerns how personality traits are implicated in etiologic pathways to AUD. This highlights the centrality of personality to conceptualizing AUD and related psychopathology. The second area is research emphasizing movement beyond a static view of personality, recognizing that personality traits are dynamic and change as a function of human development and life transitions. In particular, whereas past research on “maturing out” of AUD emphasized salutary effects of young adult role transitions, recent evidence reveals normative patterns of developmental personality maturation and supports these as additional influences on maturing out. The chapter discusses ways that contextual role effects and personality maturation can perhaps be integrated into a broader model of maturing out of AUD. Implications for future investigation are presented.


2019 ◽  
Vol 67 (7) ◽  
pp. 338-349
Author(s):  
Maryam Afshari ◽  
Jalal Poorolajal ◽  
Forouzan Rezapur-Shahkolai ◽  
Mohammad Javad Assari ◽  
Akram Karimi-Shahanjarini

Farmers in developing countries use harmful pesticides while taking few or no protective measures. There is limited evidence on factors affecting their safety measures. The objective of this study was to identify the underlying factors influencing farmers’ protective behaviors (PBs) and use of personal protective equipment (PPE) during the exposure to pesticides. From April to August 2017, a descriptive study was conducted in Twiserkan County in western Iran among 474 farmers from 104 villages. A questionnaire was developed to measure demographic characteristics and factors suggested in integrated agent-centered (IAC) framework. The questionnaire was validated in terms of content validity through expert reviews and tested for reliability in a group of farmers. Data were collected by face-to-face interviews with farmers. Physiological arousal (β = .154, p < .05), intention (β = .345, p < .05), habit (β = .188, p < .05), and contextual factors (β = .101, p < .05) had a significant and positive impact on farmers engaging in pesticide PBs. Among the assessed factors, only physiological arousal (β = .122, p < .05) and habit (β = .646, p < .05) were found to have a significant and positive effect on the use of PPE, but the intention (β = –.039, p > .05) and contextual factors (β = –.009, p > .05) had no significant relation with the use of PPE. The results of this study identified determinants of farmers’ safety measures. Our results suggest that the IAC framework could serve as a guide to developing a more effective intervention for safety measures of Iranian farmers.


2008 ◽  
Vol 12 (2) ◽  
pp. 2156759X0801200
Author(s):  
Joseph G. Ponterotto ◽  
David E. Mendelowitz ◽  
Ernest A. Collabolletta

This article extends the relevance of multicultural development to the Strengths-Based School Counseling (SBSC; Galassi & Akos, 2007) perspective. A relatively new construct for school counselors, the “multicultural personality” (MP), is introduced and defined. The MP is conceptualized as a cluster of narrow personality traits that can be subsumed under broader models of personality. Research has found that MP development is correlated with coping, adapting, and thriving in increasingly culturally diverse environments such as the United States. Suggestions for integrating MP development across the guiding principles of SBSC are presented.


2018 ◽  
Vol 54 (3) ◽  
pp. 415-453 ◽  
Author(s):  
Carrie Manning ◽  
Ian Smith

This article explores the factors affecting post-rebel party electoral performance. We present new research tracking the participation of these groups in national legislative elections from 1990 to 2016. Our full data set covers 77 parties and 286 elections in 37 countries. It includes parties formed after conflicts of varying length and intensity, with different incompatibilities, in every region of the world, and in countries with disparate political histories. Our analysis suggests that post-rebel parties’ early electoral performance strongly affects future performance, and that competition – crowd-out by older rival parties – and pre-war organizational experience in politics have a significant positive effect, particularly for those parties that are consistently winning more than about 10 per cent of seats. But especially for parties that consistently win very low seat shares, organizational characteristics yield increasingly to environmental factors, most importantly the presence of rival parties and the barriers to representation presented by electoral rules.


2013 ◽  
Vol 37 (4) ◽  
pp. 593-606 ◽  
Author(s):  
MS Rahman ◽  
MA Hossain ◽  
MJU Sarker ◽  
MA Bakr

Lentil is an important pulse crop widely grown in Bangladesh. It ranks first among the pulses in terms of area and consumers’ preference. BARI has developed many improved lentil varieties and disseminated to the farmers fields. The up-to-date information regarding adoption and financial profitability of this crop are unknown to the researchers and policymakers. Therefore, the study was conducted in Jhenaidah and Jessore districts to determine the adoption status and profitability of BARI lentil production and to examine the factors affecting the yield of BARI lentil during 2010-2011. Cobb-Douglas production function was used. The study revealed that 98% of the total lentil cultivated areas were occupied by BARI lentil varieties in the study areas. The average level of adoption of BARI Masur-3, BARI Masur-4, BARI Masur-5 and BARI Masur-6 were 49%, 47%, 1% and 1%, respectively at farm level. The cultivation of BARI lentil was profitable to the farmers since the per hectare total cost, gross return and net return of BARI lentil cultivation were Tk 52,734, Tk 80,572 and Tk 27,838, respectively. Functional analysis revealed that seed, urea, mechanical power cost and pesticides had positive effect on the yield of lentil production. Unavailability of latest BARI lentil seed, lack of technical know-how, lack of training, and diseases (root rot and stemphylium blight) were the main constraints to BARI lentil cultivation at farm level. BARI Masur-3 and BARI Masur-4 were the highly adopted varieties. The lentil production was profitable to the farmers in the study areas DOI: http://dx.doi.org/10.3329/bjar.v37i4.14384 Bangladesh J. Agril. Res. 37(4): 593-606, December 2012


2020 ◽  
Vol 1 (3) ◽  
pp. 300-310
Author(s):  
Anastasia Sianturi ◽  
Pardomuan Sihombing

This study aims to examine and obtain empirical evidence of the effects of inflation, BI rate, exchange rate, foreign exchange reserves and the oil price to yield corporate bonds in Indonesia. An increase in the number of issuers and corporate bond issuance value in Indonesia means that many companies are using and seek financing through the issuance of bonds. Several studies have been conducted, inconsistencies results of research on factors affecting yield corporate bonds in Indonesia. This study uses a quantitative approach to the type of associative causal research. Measurement of variables in this study using a time series analysis were processed using Eviews program 10. This research was conducted using monthly data within the period of 2015 to 2018. The results of this research that inflation positively affects yield corporate bonds. BI rate has a positive effect on the yield of corporate bonds. Exchange rate positive effect on the yield of corporate bonds. Foreign exchange reserves negatively affect yield corporate bonds. Oil price positive effect on the yield of corporate bonds.


Author(s):  
Aminullah Assagaf ◽  
Etty Murwaningsari ◽  
Juniati Gunawan ◽  
Sekar Mayangsari

This study aims to explain the phenomenon of the most active companies traded shares in Indonesian stock exchange. This research is motivated to analyze the response of investors to take a decision after presenting the company's financial statements. This study uses panel data consisting of 20 companies selected by purposive sampling method, using a regression model and data processing via SPSS 24. The results of this study found that the variable leverage and capital expenditure variables significantly influence the response of investors to execute the company's stock, thereby affecting the stock return. The level of leverage and significant positive effect on the response of investors, particularly due to the use of debt to investment would increase earnings per share or at a certain amount of equity can boost earnings per share acquisition. Capital expenditure and significant negative effect on the response of investors for investor tend to speculate on short-term period, which means that companies that invest in the early stages will have difficulties liquidity and rate of return will decline, so investors will shift their investment.


Author(s):  
Ronaldo Susanto ◽  
Mariana Ing Malelak

The development of investment in Indonesia has increased rapidly over the past few years. One of the key factors affecting stock traders' trading behavior is information. Information that was previously difficult to obtain by investors became easily obtained due to technological developments. In addition to information, the characteristics of traders also influence their trading behavior. The population used in this study is the entire citizen of Surabaya, and the sample of this study is stock traders who have a minimum of 1-year trading experience. Data analysis is done by using Partial Least Square with Smart PLS 3.0. The result of this study is that information has a significant effect on trading behavior, while neuroticism, extraversion, openness, agreeableness, and conscientiousness do not moderate the effect of information on trading behavior significantly.


2019 ◽  
Vol 3 (1) ◽  
pp. 49
Author(s):  
Linda Ramadhani ◽  
Fika Azmi

This study aims to obtain empirical evidence about the factors that influence tax aggressiveness. The independent variables in this study are Corporate governance, Inventory Intensity and Fixed Assets Intensity. The sample in this study were plantation sector companies listed on the Indonesia Stock Exchange in 2014-2017. The sampling technique used purposive sampling method, and obtained data as many as 32 samples. The data analysis technique uses multiple linear regression analysis. The results showed that independent commissioners and inventory intensity did not affect to tax aggressiveness, institutional ownership had a positive effect to tax aggressiveness and managerial ownership and the intensity of fixed assets negatively affected to tax aggressiveness.


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