scholarly journals Boldness and exploration vary between shell morphs but not environmental contexts in the snail Cepaea nemoralis

2019 ◽  
Author(s):  
Maxime Dahirel ◽  
Valentin Gaudu ◽  
Armelle Ansart
Keyword(s):  
Behavioral Ecology ◽  
Environmental Changes ◽  
Thermal Environment ◽  
Thermal Response ◽  
Credible Interval ◽  
Individual Level ◽  
Cepaea Nemoralis ◽  
Selective Pressures ◽  
And Behavior ◽  
Shed Light

Understanding the maintenance of among-individual behavioral variation in populations, and predicting its consequences, are key challenges in behavioral ecology. Studying the association between repeatable behaviors and other traits under selection may shed light on the underlying selective pressures. We used the model snail Cepaea nemoralis to examine whether individual behavior is associated with shell morph, a key trait that has been extensively studied in the context of thermal tolerance and predator avoidance, and which is known to be under strict genetic control in this species. We quantified proxies of boldness and exploration in snails of three morphs coming from two habitats with different thermal contexts. We show that both behaviors were repeatable at the among-individual level (within-state Rboldness = 0.22 [95% credible interval: 0.15, 0.29]; Rexploration = 0.20 [0.15, 0.25]). Behavior was associated with shell morph, with the darker morph (five-banded) being consistently shyer and slower to explore. There was no evidence that thermal environment of origin influenced behavior. Snails became faster when test temperature increased; we found no evidence morphs differed in their thermal response. Boldness and exploration were correlated among individuals, forming a syndrome (r = 0.28 [0.10, 0.46]). We discuss what these results may tell us about the type of selection exerted by predators. We also detail how our results hint to a genetic link between shell morph and behavior, and the evolutionary implications of such a link. Finally, we discuss how our findings combined with decades of evolutionary research make C. nemoralis a very valuable model to study the evolution of behavior in response to environmental changes.

scholarly journals Further mismeasures of animal contests: a new framework for assessment strategies

2019 ◽  
Vol 30 (5) ◽  
pp. 1177-1185 ◽  
Author(s):  
Kenneth James Chapin ◽  
Paulo Enrique Cardoso Peixoto ◽  
Mark Briffa
Keyword(s):  
Behavioral Ecology ◽  
Information Transfer ◽  
Information Gathering ◽  
Self Assessment ◽  
Individual Level ◽  
Assessment Strategy ◽  
And Behavior ◽  
Assessment Strategies ◽  
Competition For Resources ◽  
New Framework

Abstract Competition for resources is a ubiquitous feature of life, and a central topic in behavioral ecology. Organisms use assessment strategies to resolve contests, which can be delineated into two broad categories by the information individuals use to make decisions: mutual assessment (MA) or self-assessment (SA). Most research hitherto has worked to bin a species into one of these categories. In this review, we discuss the limitations of this approach and provide solutions. We posit that assessment strategies do not need to be fixed within a species, individuals, or interactions, and that many organisms should adjust their assessment strategy as the environment, opponent, and opportunities for information gathering change. We show that assessment strategies are an individual-level characteristic, can vary within and between contests, and are not mutually exclusive. We argue that MA is the midpoint along a spectrum of self only and opponent only assessment. We discuss the effects of resource distribution, demographics, experience, information transfer, and ontogeny on assessment strategy evolution and behavior. We conclude by providing empirical guidelines and an example with a simulated dataset.

scholarly journals Securing Operational Capability for Exceptional Circumstances: How Do Professional First Responders Respond to the Unexpected?

2021 ◽  
Vol 13 (11) ◽  
pp. 6418
Author(s):  
Ossi Heino ◽  
Joanna Kalalahti
Keyword(s):  
Police Officer ◽  
First Responders ◽  
Shopping Mall ◽  
Modern World ◽  
Rescue Operation ◽  
Operational Capability ◽  
Individual Level ◽  
First Case ◽  
Shed Light ◽  
Ambiguous Situations

Complexity and uncertainty are framing the modern world, whilst also affecting issues on security and sustainability. There is a need to prepare for known threats and identified risks, but also to improve the ability to cope in situations that are difficult to recognize or describe beforehand. What is at stake—both at the organizational and individual level—is the ability to make sense of uncertain and ambiguous situations. Analyzing two empirical cases, this study aims to shed light on the abilities of experts, who have acted in very challenging situations, in which deviating from established procedures and abandoning politeness have been necessary to respond effectively. The first case deals with a threat of serious violence faced by a police officer. The second case focuses on the actions of an executive fire officer during a rescue operation after an explosion at a shopping mall. This paper concludes by arguing that pre-established procedures require experts to reflect on their usability in exceptional situations as relying on them could also have detrimental effects.

scholarly journals Hydrogen Sulfide Increases Hypoxia-inducible Factor-1 Activity Independently of von Hippel–Lindau Tumor Suppressor-1 inC. elegans

2010 ◽  
Vol 21 (1) ◽  
pp. 212-217 ◽  
Author(s):  
Mark W. Budde ◽  
Mark B. Roth
Keyword(s):  
Hydrogen Sulfide ◽  
Tumor Suppressor ◽  
Environmental Changes ◽  
Hypoxia Inducible Factor ◽  
Low Oxygen ◽  
Animal Cells ◽  
Von Hippel Lindau ◽  
C Elegans ◽  
Reporter Activity ◽  
And Behavior

Rapid alteration of gene expression in response to environmental changes is essential for normal development and behavior. The transcription factor hypoxia-inducible factor (HIF)-1 is well known to respond to alterations in oxygen availability. In nature, low oxygen environments are often found to contain high levels of hydrogen sulfide (H2S). Here, we show that Caenorhabditis elegans can have mutually exclusive responses to H2S and hypoxia, both involving HIF-1. Specifically, H2S results in HIF-1 activity throughout the hypodermis, whereas hypoxia causes HIF-1 activity in the gut as judged by a reporter for HIF-1 activity. C. elegans require hif-1 to survive in room air containing trace amounts of H2S. Exposure to H2S results in HIF-1 nuclear localization and transcription of HIF-1 targets. The effects of H2S on HIF-1 reporter activity are independent of von Hippel–Lindau tumor suppressor (VHL)-1, whereas VHL-1 is required for hypoxic regulation of HIF-1 reporter activity. Because H2S is naturally produced by animal cells, our results suggest that endogenous H2S may influence HIF-1 activity.

Christianity, Plurality and Vernacular Religion in early Twentieth-Century Glastonbury: A Sign of Things to Come?

2015 ◽  
Vol 51 ◽  
pp. 302-321
Author(s):  
Marion Bowman
Keyword(s):  
Twentieth Century ◽  
Considerable Heterogeneity ◽  
Individual Level ◽  
The Past ◽  
Early Twentieth Century ◽  
Vernacular Religion ◽  
Important Time ◽  
To Come ◽  
Shed Light

This essay focuses upon a significant place, Glastonbury, at an important time during the early twentieth century, in order to shed light on a particular aspect of Christianity which is frequently overlooked: its internal plurality. This is not simply denominational diversity, but the considerable heterogeneity which exists at both institutional and individual level within denominations, and which often escapes articulation, awareness or comment. This is significant because failure to apprehend a more detailed, granular picture of religion can lead to an incomplete view of events in the past and, by extension, a partial understanding of later phenomena. This essay argues that by using the concept of vernacular religion a more nuanced picture of religion as it is – or has been – lived can be achieved.

Fish Bioacoustics and Behavior: Passive Acoustic Detection and the Application of a Closed-Circuit Rebreather for Field Study

2001 ◽  
Vol 35 (2) ◽  
pp. 19-28 ◽  
Author(s):  
Phillip S. Lobel
Keyword(s):  
Behavioral Ecology ◽  
Daily Basis ◽  
Open Circuit ◽  
Acoustic Detection ◽  
Ecological Processes ◽  
Detection Technology ◽  
Scientific Goal ◽  
Species Specific ◽  
Passive Acoustic ◽  
And Behavior

The simple thesis of this paper is that using rebreathers to study fish behavioral ecology, especially bioacoustics, is well worth the expense and additional training required. The scientific goal of my bioacoustic research is to determine which fishes produce species-specific sound patterns exclusively with explicit acts of courtship and mating. This provides scientific insight into evolutionary and ecological processes and also provides data necessary to develop the passive acoustic detection technology for monitoring fish reproduction. When used on a daily basis, rebreathers, in my experience, are economical and as practical as open circuit scuba. This is based both on the costs of diving as well as the efficiency of gathering useful data. The use of open circuit SCUBA while conducting acoustic recordings results in a loss of at least 40% of the data due to the bubble noise from a divers breathing. Rebreathers also provide extended bottom time, especially in shallow water, which enhances a diver's ability to observe fish and gather acoustic-behavioral data.

scholarly journals Isolated individuals and groups show opposite preferences toward humidity

2018 ◽  
Author(s):  
Mariano Calvo Martín ◽  
Stamatios C. Nicolis ◽  
Isaac Planas-Sitjà ◽  
Jean-Christophe de Biseau ◽  
Jean-Louis Deneubourg
Keyword(s):  
Relative Humidity ◽  
Environmental Conditions ◽  
Group Level ◽  
Individual Level ◽  
Negative Effect ◽  
Multi Level ◽  
The Individual ◽  
Shed Light ◽  
Selection Of

AbstractCockroaches, like most social arthropods, are led to choose collectively among different alternative resting places. These decisions are modulated by different factors, such as environmental conditions (temperature, relative humidity) and sociality (groups size, nature of communications). The aim of this study is to establish the interplay between environmental conditions and the modulation of the interactions between individuals within a group leading to an inversion of preferences. We show that the preferences of isolated cockroaches and groups of 16 individuals, on the selection of the relative humidity of a shelter are inversed and shed light on the mechanisms involved. We suggest that the relative humidity has a multi-level influence on cockroaches, manifested as an attractant effect at the individual level and as a negative effect at the group level, modulating the interactions.

scholarly journals PARTICIPATIVE MANAGEMENT AS A TOOL TO ENSURE STRATEGIC DEVELOPMENT OF ENTERPRISES

2021 ◽  
Author(s):  
Viktoriia Kyfyak ◽  
Olena Herenda
Keyword(s):  
Managerial Behavior ◽  
Management Decisions ◽  
Strategic Development ◽  
Individual Level ◽  
Healthy Environment ◽  
Advantages And Disadvantages ◽  
Positive Side ◽  
Company Policy ◽  
The Individual ◽  
And Behavior

The main focus of this article is on the correlation between employee involvement in management decisions and the growth of both the organization and employees in all areas. The types of managerial behavior are analyzed, within which the main styles are identified, such as: authoritarian and democratic, as well as the advantages and disadvantages of each of them, their impact on the workforce and behavior. The article reflects the need to involve employees in order to improve performance and a sense of responsibility, and lists not only the positive side of this implementation, but also possible negative changes. Effective communication and involvement of staff in management decisions create a basis for ensuring the effective functioning of the enterprise. Involvement of employees, in this article, is not seen as a goal or tool, as is practiced in many organizations, but as a philosophy of management and leadership on how best in a healthy environment to realize their abilities, grow, improve and succeed in each unit and organization in general. The article discusses the main forms of participatory management: informal and short-term participation of personnel in management decisions, consultative involvement of employees, attraction of employees to ownership, involvement of employees in control and improvement of processes, involvement of personnel in decisions about company policy, participation in the organization's income, participation in profits of the organization, participation in the management of the organization. A distinctive feature of this method from many systems of remuneration for labor activity is that the latter are built on the recognition of the contribution of an employee of a given organization at the individual level. Participatory governance is based on the recognition of interests all personnel being reciprocal. This leads to the fact that there is an integration of these interests, and workers become more interested in the results of their work. Involving employees in the decision-making process not only reduces outsourcing, which saves money, time and offers the company long-term reliable assistance from employees who have knowledge of all the processes and deep needs of the corporation.

Evolution, Societal Sexism, and Universal Average Sex Differences in Cognition and Behavior

2018 ◽  
Author(s):  
Lee Ellis
Keyword(s):  
Sex Differences ◽  
Cross Cultural ◽  
Past Century ◽  
Sexually Dimorphic ◽  
Social Scientists ◽  
Industrial Countries ◽  
Expression Of Genes ◽  
And Behavior ◽  
Industrial Societies ◽  
Shed Light

During the past century, social scientists have documented many cross-cultural sex differences in personality and behavior, quite a few of which now appear to be found in all human societies. However, contrary to most scientists’ expectations, these so-called universal sex differences have been shown to be more pronounced in Western industrial societies than in most non-Western developing societies. This chapter briefly reviews the evidence bearing on these findings and offers a biologically based theory that could help shed light on why cross-cultural sex differences exist. The following hypothesis is offered: The expression of many genes influencing sexually dimorphic traits is more likely among descendants of couples who are least closely related to one another. If so, societies in which out-marriage is normative (i.e., Western industrial countries) will exhibit a stronger expression of genes for sexually dimorphic traits compared to societies in which consanguineal marriages are common.

scholarly journals Cnidarian Interaction with Microbial Communities: From Aid to Animal’s Health to Rejection Responses

Marine Drugs ◽  
2018 ◽  
Vol 16 (9) ◽  
pp. 296 ◽  
Author(s):  
Loredana Stabili ◽  
Maria Parisi ◽  
Daniela Parrinello ◽  
Matteo Cammarata
Keyword(s):  
Microbial Communities ◽  
Environmental Changes ◽  
Defense Mechanism ◽  
Immune Defense ◽  
Innate Immune ◽  
Animal Disease ◽  
Normal Microbiota ◽  
Essential Components ◽  
Pathogenic Agents ◽  
And Behavior

The phylum Cnidaria is an ancient branch in the tree of metazoans. Several species exert a remarkable longevity, suggesting the existence of a developed and consistent defense mechanism of the innate immunity capable to overcome the potential repeated exposure to microbial pathogenic agents. Increasing evidence indicates that the innate immune system in Cnidarians is not only involved in the disruption of harmful microorganisms, but also is crucial in structuring tissue-associated microbial communities that are essential components of the Cnidarian holobiont and useful to the animal’s health for several functions, including metabolism, immune defense, development, and behavior. Sometimes, the shifts in the normal microbiota may be used as “early” bio-indicators of both environmental changes and/or animal disease. Here the Cnidarians relationships with microbial communities and the potential biotechnological applications are summarized and discussed.

Workplace Location and ICTs Substituting Travel

2010 ◽  
pp. 205-225 ◽  
Author(s):  
Greger Henriksson ◽  
Minna Räsänen
Keyword(s):  
Case Studies ◽  
Environmental Sustainability ◽  
Relevant Literature ◽  
Social Practices ◽  
Time Service ◽  
Individual Level ◽  
The Difference ◽  
The Individual ◽  
Relations Of Power ◽  
Shed Light

This chapter is based on the assumption that keeping the number and length of business and commuting trips at reasonable levels could contribute to reaching targets of environmental sustainability. The authors highlight a couple of options for reducing or avoiding business trips and commuting through workplace location or improved use of communications. They present case studies concerning travel and communications, carried out by using diaries and interviews. They also present relevant literature on social practices and sustainability goals in relation to use of ICT. The aim is to shed light on variation in the use of travel and communications on an individual level in work life. The case studies illustrate that such variation is mainly due to the concrete practices involved in execution of professional duties and roles. Duties that involve a clearly defined end result or product being delivered regularly by the member of staff are correlated to clearly defined needs for communications. Less clearly defined end results of the work duties seem to make it harder for the individual to plan and perform communication and travel in a more energy saving way. The difference in professional duties can thus be expressed in terms of clarity and maturity. Another factor that affect who can replace travel with ICTs is relations of power, e.g., when a purchaser dictates the terms for a subcontractor concerning how and where to “deliver” his working time, service or product. The importance of clarity, maturity and power aspects means that professional practices need to be studied at a detailed level to find out who could substitute ICTs for travel and how this could be done.

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