scholarly journals THE HISTORY OF THE FORMATION OF ETHOLOGY AS SCIENCE ON BEHAVIOR OF ANIMALS

2017 ◽  
Vol 53 ◽  
pp. 190-196
Author(s):  
N. V. Slusar ◽  
V. I. Kovalchuk ◽  
Yu. L. Slyusarenko

The science of behavior in the search for objective laws and attempts to develop concepts that could explain normal and abnormal behavior, has gone through several stages of development - reflex, biheviorialnyy, ethological. These steps taken oppose each other, but we believe that each of them is the basis for further development. In Ukraine, the famous ethologist was Professor of Kharkiv University Karazin AP Krapivny. His works are devoted to interspecies relations animals and bioecological aspects zoopsychology philosophical, mathematical analysis of complex behavior of animals. Kyiv National University. Shevchenko animal behavior and regulatory mechanisms mizhtvarynnyh relations actively exploring Podobaylo AV and VA Gorobchyshyna. The current stage is characterized not only by the lack of a unified theory in ethology, but also the availability of interdisciplinary connections, especially with comparative psychology and neurophysiology. Modern ethology phase lasts quite a long time, and it sometimes distinguish different stages. A number of famous ethologist believe that since the mid 80s of last century ethology entered a new stage of its development - the stage of the so-called "broad ethology." It is characterized, in their opinion, no discipline regarding the consolidation of a theory of private conduct and interaction based on the existence of one ethological approach. Anthropologists, although limited to the study of primates, made a significant contribution to the development of modern science of animal behavior at all. An important contribution to science made by psychiatrists, specialists in social psychology, veterinary doctors and employees of zoos and sanctuaries. The ultimate goal of the study of animal behavior that determines the practical role of ethology, behavior management believe (L. Baskin). Theoretical bases of behavior management: the theory of hierarchical social behavior of animals exposed mechanisms ritualization (demonstrative behavior that prevents aggression), communication systems, mechanisms for organizing your social behavior. However, the right to use the patterns found for the modernization and industrial livestock farming is not possible. We have to solve many specific issues related to specific species, his reaction to domestication (domestication of animals) and welfare. It found a significant number of rather similar problems related laws and domestication synanthropization (adaptation of organisms to exist near the person), their impact on the environment and animal behavior The development of animal husbandry is by creating new options for interaction of organisms with new physical and biological conditions. Excluding the effect of limiting factors, one introduces animals into new ecological niches. However, we are seeing with only weak changes in norms of reaction types. In most cases we are talking about the use of the existing range of standards reactions. Changing behaviors people use natural mechanisms to ensure lability behavior: simple recombination of elements within the complex, developing new responses to stimuli. Translating animals in the new environment, every time we have to review all aspects of their integrated behavior, creating the need for adequate reaction and eliminating unsuitable to the new conditions. In general, we can talk about a special field of research - Applied Ethology, in front of which are the following problems: Creation of an integrated model of behavior animals in artificial environments. Development ethological aspects neoevolyutsiyi (domestication and synanthropization). Delimitation variability coherent behavior and its elements in species important to the economy and development of methods of purposeful formation behavior. Study and use patterns of behavior in vitro livestock facilities, livestock grazing and intensive industrial economy. Conclusion The evolution of ideas about the "mind" of animals and establishment of basic concepts of thinking (mental activity) animals and its effect was found in various areas of behavior over time. At all stages of the development of science questions the presence of mind in animals, its degree of development and role of psychology and behavior were mixed. The current stage of development of ethology characterized not only by the lack of a unified theory, but also the availability of connections, especially from comparative psychology and neurophysiology. Great contribution to the major trends of experimental and comparative approaches to the study of higher mental functions such animals have researchers like Pavlov.

Author(s):  
H. Frederik Nijhout ◽  
Emily Laub

Many behaviors of insects are stimulated, modified, or modulated by hormones. The principal hormones involved are the same as the ones that control moulting, metamorphosis, and other aspects of development, principally ecdysone and juvenile hormone. In addition, a small handful of neurosecretory hormones are involved in the control of specific behaviors. Because behavior is a plastic trait, this chapter begins by outlining the biology and hormonal control of phenotypic plasticity in insects, and how the hormonal control of behavior fits in with other aspects of the control of phenotypic plasticity. The rest of the chapter is organized around the diversity of behaviors that are known to be controlled by or affected by hormones. These include eclosion and moulting behavior, the synthesis and release of pheromones, migration, parental care, dominance, reproductive behavior, and social behavior.


Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 25
Author(s):  
László Somay ◽  
Viktor Szigeti ◽  
Gergely Boros ◽  
Réka Ádám ◽  
András Báldi

Wood pastures are home to a variety of species, including the dung beetle. Dung beetles are an important functional group in decomposition. Specifically, in terms of livestock manure, they not only contribute to nutrient cycling but are key players in supporting human and animal health. Dung beetles, however, are declining in population, and urgent recommendations are needed to reverse this trend. Recommendations need to be based on solid evidence and specific habitats. Herein, we aimed to investigate the role of an intermediate habitat type between forests and pastures. Wood pastures are key areas for dung beetle conservation. For this reason, we compared dung beetle assemblages among forests, wood pastures, and grasslands. We complemented this with studies on the effects of dung type and season at three Hungarian locations. Pitfall traps baited with cattle, sheep, or horse dung were used in forests, wood pastures, and pasture habitats in spring, summer, and autumn. Dung beetle assemblages of wood pastures showed transient characteristics between forests and pastures regarding their abundance, species richness, Shannon diversity, assemblage composition, and indicator species. We identified a strong effect of season and a weak of dung type. Assemblage composition proved to be the most sensitive measure of differences among habitats. The conservation of dung beetles, and the decomposition services they provide, need continuous livestock grazing to provide fresh dung, as well as the maintenance of wood pastures where dung beetle assemblages typical of forests and pastures can both survive.


Microbiome ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Sharon A. Huws ◽  
Joan E. Edwards ◽  
Wanchang Lin ◽  
Francesco Rubino ◽  
Mark Alston ◽  
...  

Abstract Background Gut microbiomes, such as the rumen, greatly influence host nutrition due to their feed energy-harvesting capacity. We investigated temporal ecological interactions facilitating energy harvesting at the fresh perennial ryegrass (PRG)-biofilm interface in the rumen using an in sacco approach and prokaryotic metatranscriptomic profiling. Results Network analysis identified two distinct sub-microbiomes primarily representing primary (≤ 4 h) and secondary (≥ 4 h) colonisation phases and the most transcriptionally active bacterial families (i.e Fibrobacteriaceae, Selemondaceae and Methanobacteriaceae) did not interact with either sub-microbiome, indicating non-cooperative behaviour. Conversely, Prevotellaceae had most transcriptional activity within the primary sub-microbiome (focussed on protein metabolism) and Lachnospiraceae within the secondary sub-microbiome (focussed on carbohydrate degradation). Putative keystone taxa, with low transcriptional activity, were identified within both sub-microbiomes, highlighting the important synergistic role of minor bacterial families; however, we hypothesise that they may be ‘cheating’ in order to capitalise on the energy-harvesting capacity of other microbes. In terms of chemical cues underlying transition from primary to secondary colonisation phases, we suggest that AI-2-based quorum sensing plays a role, based on LuxS gene expression data, coupled with changes in PRG chemistry. Conclusions In summary, we show that fresh PRG-attached prokaryotes are resilient and adapt quickly to changing niches. This study provides the first major insight into the complex temporal ecological interactions occurring at the plant-biofilm interface within the rumen. The study also provides valuable insights into potential plant breeding strategies for development of the utopian plant, allowing optimal sustainable production of ruminants.


2021 ◽  
Vol 36 (3) ◽  
Author(s):  
Rose Trappes

AbstractNiche construction theory (NCT) aims to transform and unite evolutionary biology and ecology. Much of the debate about NCT has focused on construction. Less attention has been accorded to the niche: what is it, exactly, that organisms are constructing? In this paper I compare and contrast the definition of the niche used in NCT with ecological niche definitions. NCT’s concept of the evolutionary niche is defined as the sum of selection pressures affecting a population. So defined, the evolutionary niche is narrower than the ecological niche. Moreover, when contrasted with a more restricted ecological niche concept, it has a slightly different extension. I point out three kinds of cases in which the evolutionary niche does not coincide with realized ecological niches: extreme habitat degradation, commensalism, and non-limiting or super-abundant resources. These conceptual differences affect the role of NCT in unifying ecology and evolutionary biology.


1973 ◽  
Vol 36 (3) ◽  
pp. 735-738 ◽  
Author(s):  
Joaquin F. Sousa-Poza ◽  
Robert Rohrberg ◽  
Ernest Shulman

Some characteristics of the social behavior of field-dependents as well as their superior recognition of ambiguous social stimuli led to the hypothesis that they would show greater self-disclosure than field-independents. This hypothesis was tested by administering the 60-item Jourard Self-disclosure Questionnaire (JSDQ) to 13 field-dependent and 13 field-independent Ss. In terms of total self-disclosure scores, field-dependents showed significantly (.025) higher levels than field-independents. Results are discussed in light of personality theories which emphasize the role of self-conceptual transactions in the development of the self.


Parasitology ◽  
2014 ◽  
Vol 141 (9) ◽  
pp. 1203-1215 ◽  
Author(s):  
VICTORIA GILLAN ◽  
EILEEN DEVANEY

SUMMARYNematodes are amongst the most successful and abundant organisms on the planet with approximately 30 000 species described, although the actual number of species is estimated to be one million or more. Despite sharing a relatively simple and invariant body plan, there is considerable diversity within the phylum. Nematodes have evolved to colonize most ecological niches, and can be free-living or can parasitize plants or animals to the detriment of the host organism. In this review we consider the role of heat shock protein 90 (Hsp90) in the nematode life cycle. We describe studies on Hsp90 in the free-living nematode Caenorhabditis elegans and comparative work on the parasitic species Brugia pahangi, and consider whether a dependence upon Hsp90 can be exploited for the control of parasitic species.


Author(s):  
Caroline Howlett ◽  
Brandon C. Wheeler

AbstractWhile the role of ecological factors in shaping primate social systems has been a central focus for decades, less attention has been given to phylogenetic relationships and the potential role of underlying proximate mechanisms. This study aimed to investigate the relationship between one such proximate mechanism, prenatal androgen effects (PAEs), and aspects of social behavior in female nonhuman primates using the 2D:4D ratio as a proxy for PAEs and phylogenetically controlled methods. In general, female 2D:4D ratios were highest in monogamous species (low inferred PAEs) and lowest in polygynandrous and polygynous species (high inferred PAEs). 2D:4D ratios also varied with the form of polygyny/polygynandry, potentially with regard to the need for competitive over cooperative behaviors and the intensity of female reproductive competition. Species characterized by female dominance had lower 2D:4D ratios than species characterized by male dominance or codominance. There were no significant relationships between 2D:4D ratio and either degree of frugivory or group size. Relationships between 2D:4D ratios and the directional consistency index and 2D:4D ratios and rates of female–female agonism were also nonsignificant although sample sizes for both of these variables were small. Female social relationships are a manifestation of complex competitive and cooperative behaviors and the results suggest that PAEs may act as a proximate mechanism underlying the expression of certain aspects of behavior in female primates in ways that are adaptive to their social system.


2021 ◽  
Vol 4 (2) ◽  
pp. 24-31
Author(s):  
Nargiz Sattarova ◽  

This article presents the definitions of the concept of trade services by various scientists, the place and role of trade services in all spheres and sectors of society, as well as a new definition of trade services given by the author.If the main goal of the current stage of economic transformation is to create favorable conditions for the effective operation of trade enterprises, then the main goal of the article is an in-depth study of the essence and content of the concept of trade services as an independent economic entity.


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