Relevant bibliographies by topics / Locusts – Behavior

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Locusts – Behavior'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 January 2023

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Journal articles on the topic "Locusts – Behavior"

1

Gee, C., and R. Robertson. "Recovery of the flight system following ablation of the tegulae in immature adult locusts." Journal of Experimental Biology 199, no. 6 (1996): 1395–403. http://dx.doi.org/10.1242/jeb.199.6.1395.

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The capacity of the flight system to recover from ablation of the tegulae was studied in immature adult Locusta migratoria and compared with recovery in mature adults. We ablated the hindwing tegulae or all tegulae in adult locusts either 1 day after the imaginal moult (immature locusts) or 2 weeks after the imaginal moult (mature locusts). We monitored recovery throughout the recovery period by using a stroboscope to measure the wingbeat frequency of tethered locusts. In addition, we measured other parameters of the flight motor pattern using electromyographic electrodes implanted into recovered locusts. Both methods of monitoring recovery yielded the same results. There was no reduction, during adult maturation, in the capacity of the locust flight system to recover from the loss of these proprioceptors. Plasticity of the locust flight system was therefore maintained in the mature adult locust. This suggests that the flight system is not fixed and simply implemented when the locust reaches adulthood, but that the circuitry can be remodelled throughout the animal's life to produce behaviour adapted to the needs and constraints of the individual.
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Camhi, J., G. Sumbre, and G. Wendler. "Wing-beat coupling between flying locust pairs: preferred phase and lift enhancement." Journal of Experimental Biology 198, no. 4 (1995): 1051–63. http://dx.doi.org/10.1242/jeb.198.4.1051.

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Pairs of locusts flying in tandem in a wind tunnel are known to couple their wing-beats intermittently. The rhythmically oscillating air flow from the front locust's wing-beat, detected by the rear individual, appears to convey the timing information for coupling. Three predictions of this arrangement were tested quantitatively in this study. (1) Given that the oscillating air flow has a wavelength of 7.5 cm, placing the rear locust 7.5 or 15 cm behind the front one should produce the same phase of coupling, whereas placing it at an intermediate distance of 11 cm should produce an opposite phase. (2) At any distance, the preferred phase at which wing-beat coupling occurs should depend, in part, on the difference in the wing-beat frequencies of the two locusts just before the coupling began. (3) At the moment that the wing-beats of the two locusts become coupled, a change should be observed consistently in the wing-beat frequency of the rear individual only. Each of these three predictions was fulfilled. We also recorded the instantaneous lift of the rear locust by tethering it to a laser torque meter. Lift varied with the phase of the wing-beats between the two locusts. For a given distance between the two locusts, lift was greater by a mean of 16 % of the locust's body mass at those phases where coupling most commonly occurred than at opposite phases. This lift effect was seen even if the wing-beats of the two locusts drifted through these preferred phases without actually coupling. These results are discussed in terms of a possible energetic advantage conferred to the rear locust by flying in tandem and by coupling its flight rhythm to the leader's wing-beat.
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Lavy, Omer, Uri Gophna, Eran Gefen, and Amir Ayali. "Locust Bacterial Symbionts: An Update." Insects 11, no. 10 (2020): 655. http://dx.doi.org/10.3390/insects11100655.

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As one of the world’s most infamous agricultural pests, locusts have been subjected to many in-depth studies. Their ability at one end of their behavioral spectrum to live as solitary individuals under specific conditions, and at the other end of the spectrum to form swarms of biblical scale, has placed them at the focus of vast research efforts. One important aspect of locust ecology is that of their interactions with the bacteria that reside in and on them. Although this aspect of locust ecology has been little studied relative to the mainstream locust research, these bacteria have been shown both to affect locust immunity and to participate in maintaining swarm integrity through the secretion of attractant volatiles. The interaction between locusts and their bacteria seems, however, to be bi-directional, with the bacteria themselves, as recently shown, being influenced by their host’s swarming tendencies. This seems to be a consequence of the bacterial composition in the locust’s gut, reproductive organs, and integument undergoing change with the change in their host’s behavior. In this review we describe the current state of knowledge of the locust–bacteria interactions (data exists mainly for the desert and the migratory locusts), as well as highlighting some newly-gained understanding; and offer perspectives for future research.
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Jiang, Xingcong, Haozhi Xu, Nan Zheng, Xuewei Yin, and Long Zhang. "A Chemosensory Protein Detects Antifeedant in Locust (Locusta migratoria)." Insects 12, no. 1 (2020): 1. http://dx.doi.org/10.3390/insects12010001.

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Chemosensory system is vitally important for animals to select food. Antifeedants that herbivores encounter can interfere with feeding behavior and exert physiological effects. Few studies have assessed the molecular mechanisms underlying the chemoreception of antifeedants. In this study, we demonstrated that a chemosensory protein (CSP) in Locusta migratoria is involved in detecting an antifeedant. This CSP, LmigEST6 (GenBank Acc. No. AJ973420), we named as LmigCSPIII, expressed in sensory organs where chemosensilla are widely distributed. Fluorescent binding experiments indicated that LmigCSPIII exhibits high binding affinity to α-amylcinnamaldehyde (AMCAL), a natural compound from non-host plant. This compound was subsequently demonstrated to be an effective antifeedant to locusts in feeding bioassay. By injection of double-stranded RNA (dsRNA) of LmigCSPIII, we generated LmigCSPIII knockdown locusts. The feeding behaviour assays demonstrated that the LmigCSPIII knockdown locusts had reduced sensitivity to the antifeedant but showed no changes in their physiological development or food consumption. Therefore, we inferred that this chemosensory protein is involved in antifeedant detection.
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Winther, A. M., and D. R. Nassel. "Intestinal peptides as circulating hormones: release of tachykinin-related peptide from the locust and cockroach midgut." Journal of Experimental Biology 204, no. 7 (2001): 1269–80. http://dx.doi.org/10.1242/jeb.204.7.1269.

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Tachykinin-related peptides (TRPs) in the locust Locusta migratoria and the cockroach Leucophaea maderae have stimulatory effects on some muscles that are not innervated by TRP-containing neurons. Thus, these tissues may be affected by circulating TRPs. Here, we have investigated whether the midgut is the source of circulating TRPs. TRP-immunoreactive material in the locust midgut is found only in the endocrine cells of the gut epithelium. In both species of insect, the endocrine cells contain several isoforms of TRPs, as determined by immunocytochemistry and a combination of chromatography (HPLC) and enzyme immunoassay (ELISA). The release of TRPs was investigated by ELISA using isolated midguts of the locust and cockroach. Elevated levels of K(+) in the bathing saline induced the release of TRP from the midgut of both species. To examine the release of TRPs into the circulation in vivo, we measured haemolymph levels of TRPs in fed and starved locusts. The concentration of TRP-immunoreactive material in fed locusts was estimated to be 0.15 nmol l(−1), and this increased approximately fourfold in insects starved for 24 h. In accordance with this observation, the content of TRP-immunoreactive material in the midgut was lower in starved locusts than in fed locusts. Although part of the increased blood concentration of TRPs may be due to reduced blood volume, our data suggest that TRPs are released as hormones from the midgut of the locust and cockroach and that this release may be linked to nutritional status.
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Zhao, Lianfeng, Wei Guo, Feng Jiang та ін. "Phase-related differences in egg production of the migratory locust regulated by differential oosorption through microRNA-34 targeting activinβ". PLOS Genetics 17, № 1 (2021): e1009174. http://dx.doi.org/10.1371/journal.pgen.1009174.

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Outbreaks of locust plagues result from the long-term accumulation of high-density egg production. The migratory locust, Locusta migratoria, displays dramatic differences in the egg-laid number with dependence on population density, while solitarious locusts lay more eggs compared to gregarious ones. However, the regulatory mechanism for the egg-laid number difference is unclear. Herein, we confirm that oosorption plays a crucial role in the regulation of egg number through the comparison of physiological and molecular biological profiles in gregarious and solitarious locusts. We find that gregarious oocytes display a 15% higher oosorption ratio than solitarious ones. Activinβ (Actβ) is the most highly upregulated gene in the gregarious terminal oocyte (GTO) compared to solitarious terminal oocyte (STO). Meanwhile, Actβ increases sharply from the normal oocyte (N) to resorption body 1 (RB1) stage during oosorption. The knockdown of Actβ significantly reduces the oosorption ratio by 13% in gregarious locusts, resulting in an increase in the egg-laid number. Based on bioinformatic prediction and experimental verification, microRNA-34 with three isoforms can target Actβ. The microRNAs display higher expression levels in STO than those in GTO and contrasting expression patterns of Actβ from the N to RB1 transition. Overexpression of each miR-34 isoform leads to decreased Actβ levels and significantly reduces the oosorption ratio in gregarious locusts. In contrast, inhibition of the miR-34 isoforms results in increased Actβ levels and eventually elevates the oosorption ratio of solitarious locusts. Our study reports an undescribed mechanism of oosorption through miRNA targeting of a TGFβ ligand and provides new insights into the mechanism of density-dependent reproductive adaption in insects.
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Faisal, A. A., and T. Matheson. "Coordinated righting behaviour in locusts." Journal of Experimental Biology 204, no. 4 (2001): 637–48. http://dx.doi.org/10.1242/jeb.204.4.637.

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A locust placed upside down on a flat surface uses a predictable sequence of leg movements to right itself. To analyse this behaviour, we made use of a naturally occurring state of quiescence (thanatosis) to position locusts in a standardised upside-down position from which they spontaneously right themselves. Locusts grasped around the pronotum enter a state of thanatosis during which the limbs can be manipulated into particular postures, where they remain, and the animal can be placed upside down on the ground. When released, thanatosis lasts 4–456 s (mean 73 s) before the animal suddenly becomes active again and rights itself within a further 600 ms. Thanatosis is characterised by very low levels of leg motor activity. During righting, one hind leg provides most of the downward force against the ground that rolls the body around a longitudinal axis towards the other side. The driving force is produced by femoral levation (relative to the body) at the trochanter and by tibial extension. As the animal rolls over, the hind leg on the other side is also levated at the trochanter, so that it does not obstruct the movement. The forelegs and middle legs are not required for successful righting but they can help initially to tip the locust to one side, and at the end of the movement they help stop the roll as the animal turns upright. Individual locusts have a preferred righting direction but can, nevertheless, roll to either side. Locusts falling upside down through the air use both passive and active mechanisms to right themselves before they land. Without active movements, falling locusts tend to rotate into an upright position, but most locusts extend their hind leg tibiae and/or spread their wings, which increases the success of mid-air righting from 28 to 49 % when falling from 30 cm. The rapid and reliable righting behaviour of locusts reduces the time spent in a vulnerable upside-down position. Their narrow body geometry, large hind legs, which can generate substantial dorsally directed force, and the particular patterns of coordinated movements of the legs on both sides of the body are the key features that permit locusts to right themselves effectively. The reliability of autonomous multi-legged robots may be enhanced by incorporating these features into their design.
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Gee, Christine E., Kelly L. Shoemaker, and R. Meldrum Robertson. "The forewing tegulae: their significance in steering manoeuvres and free flight in Locusta migratoria." Canadian Journal of Zoology 76, no. 4 (1998): 660–67. http://dx.doi.org/10.1139/z97-243.

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The flight system of Locusta migratoria is widely used to investigate the principles of sensory-motor control. The four tegulae are proprioceptors of the flight system that are active during the downstroke and provide afferent input to flight-system neurons. While the role of the hindwing tegulae in the flight motor pattern has been well characterized, the role of the forewing tegulae is unclear. We tested whether the forewing tegulae may be more important for the generation of intentional steering manoeuvres than for generation of the basic flight motor pattern. Following ablation of the forewing tegulae, tethered flying locusts continued to generate characteristic intentional steering manoeuvres in open-loop conditions. In contrast, we found that locusts were less likely to sustain unrestrained free flight following ablation of the forewing tegulae. We also found that the number of spikes in a forewing depressor muscle increased, as did the hindwing to forewing delay in elevator-muscle activation after ablation of the forewing tegulae. We conclude that the forewing tegulae promote free flight in locusts and we discuss the role they may play in locust flight.
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Ignell, R., F. Couillaud, and S. Anton. "Juvenile-hormone-mediated plasticity of aggregation behaviour and olfactory processing in adult desert locusts." Journal of Experimental Biology 204, no. 2 (2001): 249–59. http://dx.doi.org/10.1242/jeb.204.2.249.

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In desert locusts Schistocerca gregaria, aggregation behaviour is elicited by aggregation pheromones. In this study, we show that the behavioural response to the major and most potent adult aggregation pheromone component, phenylacetonitrile, is age- and juvenile-hormone-dependent. Furthermore, we show that juvenile hormone influences the responsiveness of olfactory interneurons in the antennal lobe to aggregation pheromone, whereas the responsiveness of antennal receptor neurons is not changed. Old locusts and locusts injected with juvenile hormone, in contrast to young locusts and locusts deprived of juvenile hormone through allatectomy, i.e. after surgical removal of the gland producing this hormone, do not display any aggregation behaviour, as indicated by long-term behavioural observations. The lack of positive olfactory-guided behaviour coincides with an impairment of the central olfactory system, which displays a lower number of neurons responding to aggregation pheromone. Indirect and direct actions of juvenile hormone at different levels of the central nervous system may thus contribute to the regulation and modulation of behavioural responsiveness in the locust.
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Mo, Xiaojuan, Donato Romano, Mario Milazzo, Giovanni Benelli, Wenjie Ge, and Cesare Stefanini. "Impact of Different Developmental Instars on Locusta migratoria Jumping Performance." Applied Bionics and Biomechanics 2020 (March 26, 2020): 1–11. http://dx.doi.org/10.1155/2020/2797486.

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Ontogenetic locomotion research focuses on the evolution of locomotion behavior in different developmental stages of a species. Unlike vertebrates, ontogenetic locomotion in invertebrates is poorly investigated. Locusts represent an outstanding biological model to study this issue. They are hemimetabolous insects and have similar aspects and behaviors in different instars. This research is aimed at studying the jumping performance of Locusta migratoria over different developmental instars. Jumps of third instar, fourth instar, and adult L. migratoria were recorded through a high-speed camera. Data were analyzed to develop a simplified biomechanical model of the insect: the elastic joint of locust hind legs was simplified as a torsional spring located at the femur-tibiae joint as a semilunar process and based on an energetic approach involving both locomotion and geometrical data. A simplified mathematical model evaluated the performances of each tested jump. Results showed that longer hind leg length, higher elastic parameter, and longer takeoff time synergistically contribute to a greater velocity and energy storing/releasing in adult locusts, if compared to young instars; at the same time, they compensate possible decreases of the acceleration due to the mass increase. This finding also gives insights for advanced bioinspired jumping robot design.
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Dissertations / Theses on the topic "Locusts – Behavior"

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Bouaïchi, Abdelghani. "The behavioural and environmental bases of gregarization in the desert locust Schistocerca gregaria (Forskal)." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670251.

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Isaacson, Matthew David. "Using new tools to study the neural mechanisms of sensation : auditory processing in locusts and translational motion vision in flies." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/288741.

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This thesis describes work from both the University of Cambridge in the lab of Berthold Hedwig and from the HHMI Janelia Research Campus in the lab of Michael Reiser. At the University of Cambridge, my work involved the development and demonstration of a method for electrophoretically delivering dyes and tracers for anatomical and functional imaging into animals that are not amenable to genetic labelling techniques. Using this method in locusts and crickets - model systems of particular interest for their acoustic communication - I successfully delivered polar fluorescent dyes and tracers through the sheath covering the auditory nerve, simultaneously staining both the peripheral sensory structures and the central axonal projections without destroying the nerve's function. I could label neurons which extend far from the tracer delivery site on the nerve as well as local neuron populations through the brain's surface. I used the same method to deliver calcium indicators into central neuropils for in vivo optical imaging of sound-evoked activity, as well as calling song-evoked activity in the brain. The work completed at the Janelia Research Campus began with the development of a modern version of a modular LED display and virtual reality control system to enable research on the visual control of complex behaviors in head-fixed animals. The primary advantages of our newly developed LED-based display over other display technologies are its high-speed operation, brightness uniformity and control, precise synchronization with analog inputs and outputs, and its ability to be configured into a variety of display geometries. Utilizing the system's fast display refresh rates, I conducted the first accurate characterization of the upper limits of the speed sensitivity of Drosophila for apparent motion during flight. I also developed a flexible approach to presenting optic flow scenes for functional imaging of motion-sensitive neurons. Finally, through the on-line analysis of behavioral measures, image rendering, and display streaming with low latency to multi-color (UV/Green) LED panels, I demonstrated the ability to create more naturalistic stimuli and interactive virtual visual landscapes. Lastly, I used this new visual display system to explore a newly discovered cell-type that had been implicated in higher-order motion processing from a large genetic screen of visually-guided behavior deficits. Using genetic silencing and activation methods, and by designing stimuli that modeled the optic flow encountered during different types of self-motion, colleagues in the Reiser lab and I showed that this cell-type - named Lobula Plate Columnar 1 (LPC1) - is required for the stopping behavior of walking flies caused by back-to-front translation motion but is not involved in the rotational optomotor response. Using calcium imaging, I found that LPC1 was selectively excited by back-to-front motion on the eye ipsilateral to the neuron population and inhibited by front-to-back motion on the contralateral eye, demonstrating a simple mechanism for its selectivity to translation over rotation. I also examined an anatomically similar cell type - named Lobula-Lobula Plate Columnar type 1 (LLPC1) - and found that its selectivity results from a similar but opposite calculation for the detection of front-to-back translational motion. The detection of back-to-front motion had previously been hypothesized to be useful for collision avoidance, and this work provides a neural mechanism for how this detection could be accomplished, as well as providing a platform from which to explore the larger network for translation optic flow.
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Hale, Joseph J. "Automated tracking and collective behaviour in locusts and humans." Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:041ae2be-cc9d-4cda-9e3c-36f2709853db.

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The understanding of the motion of animal groups, such as birds, fish and insects, has been greatly advanced by applying principles of self-organisation – the emergence of global patterns from simple, local, interactions between individuals. The desert locust, Schistocerca gregaria, provides a useful model system for the experimental study of collective behaviour. During plague years, the desert locust can form aggregations extending over hundreds of km. Before developing wings, juvenile locusts form marching ‘bands’ which can maintain group cohesion as they migrate over large distances. In this thesis I investigate locust aggregation, group motion and individual interactions. I also apply the same principles to a study of human behaviour. In Chapter 2, I describe the automated tracking methods that I developed and used to collect the data for the rest of the thesis. In the experiments described in Chapter 3, the relative strengths of the attraction to conspecifics and environmental heterogeneities were explored by presenting groups of locusts with two aggregation sites. I found that locusts had a preference to enter the site with the higher population. The locusts formed dynamic aggregations on the sites; no site was consistently more populated than the other, but individuals were significantly more attracted to the site with the higher current population. In Chapter 4, I consider the effect of marching experience on locust behaviour. Groups of locusts that had experience of directed marching, followed by a sudden reduction in density, behaved indistinguishably from those that had only experienced the lower density throughout, indicating a lack of hysteresis effects in collective responses to change in local population density. In Chapter 5, I investigate a locust’s response to its nearest neighbour. I quantified a locust’s propensity to start or stop moving according to the relative position, orientation and movement of its nearest neighbour. In Chapter 6 the techniques developed studying the locusts were applied to human groups. The response of people to different sized groups was quantified, replicating an earlier study in New York. The response was weaker in Oxford but had the same characteristics of the previous study, showing an initially linear response which saturated. The spatial distribution of gaze copying was anisotropic, tending to occur behind the group.
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Stettin, Katja. "Mechanisms driving the acquisition and maintenance of gregarious behaviour in the desert locust (Schistocerca gregaria)." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708550.

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O'Brien, Kimberly E. "Self-Determination Theory and locus of control as antecedents of voluntary workplace behaviors." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000379.

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Despland, Emma. "Small-scale environmental factors and Desert locust behaviour and phase state." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325956.

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Seymour, Kathyrn Jane. "The neural control of oviposition in the locust Schistocerca Gregaria." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335246.

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Simpson, Christine Lynn. "Dietary compensation by Locusta migratoria : aspects of physiology and behaviour." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279900.

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Norman, Alexander Patrick. "Development and neural control of locust jumping and kicking behaviour." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360842.

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Mappes, Martina. "Polarization vision behavioral studies in tethered flying desert locusts, Schistocerca gregaria = Polarisationssehen /." [S.l.] : [s.n.], 2006. http://archiv.ub.uni-marburg.de/diss/z2006/0902.

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Books on the topic "Locusts – Behavior"

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Dethier, V. G. Crickets and katydids, concerts and solos. Harvard University Press, 1992.

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Maeno, Kōtarō. Batta o taoshini Afurika e. Kōbunsha, 2017.

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1940-, Davis Linda, ed. The passionate observer: Writings from the world of nature by Jean-Henri Fabre. Chronicle Books, 1998.

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Fabre, Jean-Henri. Souvenirs entomologiques. Sciences Nat, 1987.

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Fabre, Jean-Henri. The passionate observer: Writings from the world of nature. Chronicle Books, 1998.

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Fabre, Jean-Henri. Jikabachi to tokkuribachi. Asunaro Shobō, 1985.

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Migration and meteorology: Flight behaviour and the atmospheric environment of locusts and other migrant pests. Clarendon Press, 1989.

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McCready, Marina Loi. Locus of control and adherence to exercise programs. Microform Publications, College of Human Development and Performance, University of Oregon, 1987.

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Moules, Christina M. M. Health behaviours and locus of control: a comparison of student nurses and college students. [University of Surrey], 1990.

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O'Hagan, Siobhan. Students knowledge about AIDS, concern about catching AIDS, sexual behaviour in relation to AIDS and locus of control. The Author], 1995.

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Book chapters on the topic "Locusts – Behavior"

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Robertson, R. Meldrum, and Keir G. Pearson. "Neural Networks Controlling Locomotion in Locusts." In Model Neural Networks and Behavior. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-5858-0_2.

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Mallott, Elizabeth K. "Locus." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-47829-6_182-1.

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Mallott, Elizabeth K. "Locus." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_182.

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Malik, Jamil A., Theresa A. Morgan, Falk Kiefer, et al. "Locus." In Encyclopedia of Behavioral Medicine. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-1005-9_100988.

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Noggle, Chad A. "Locus Coeruleus." In Encyclopedia of Child Behavior and Development. Springer US, 2011. http://dx.doi.org/10.1007/978-0-387-79061-9_1678.

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Burrows, Malcolm. "Nonspiking and Spiking Local Interneurons in the Locust." In Model Neural Networks and Behavior. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-5858-0_7.

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Malik, Jamil A., Theresa A. Morgan, Falk Kiefer, et al. "Locus (Genetics)." In Encyclopedia of Behavioral Medicine. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-1005-9_708.

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Turner, J. Rick. "Locus (Genetics)." In Encyclopedia of Behavioral Medicine. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39903-0_708.

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Modder, W. W. D. "Attraction and diurnal behaviour of the African pest grasshopper, Zonocerus variegatus (L.), at oviposition sites." In New Strategies in Locust Control. Birkhäuser Basel, 1997. http://dx.doi.org/10.1007/978-3-0348-9202-5_44.

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Cuevas, Erik, Margarita Arimatea Díaz Cortés, and Diego Alberto Oliva Navarro. "Optimization Based on the Behavior of Locust Swarms." In Advances of Evolutionary Computation: Methods and Operators. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28503-0_6.

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Conference papers on the topic "Locusts – Behavior"

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Ayali, Amir. "Locusts as models for collective behavior." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.95222.

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Lai, Heather L., and Jennifer Beahan. "Dynamic Behavior of Biologically Inspired 3D Printed Visco-Elastic Heterogeneous Structures." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87845.

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Many jumping insects such as locusts have a composite leg structure which is a combination of a hard material called cuticle and a rubber-like protein called resilin. Research has shown that the muscular excitation during kicking is greatly amplified by the composite structure of the leg which combines the stiffness of the cuticle and the elasticity of the resilin in a catapult behavior. The composite structure has a modulus of elasticity close to that of cuticle, but has the added elasticity of the resilin, allowing energy to be stored in the structure without bending the brittle cuticle past its breaking point. With the advancement of heterogeneous 3D printing, it has become possible for multi-material models to be seamlessly printed in ways that mimic the mechanical behavior of biological structures such as the semi-lunar process of the jumping locust. The uses of this type of composite structure opens up a wide range of application for multi-material additive manufacturing. In the presented research, FEA is used to model the behavior of the locust semi-lunar process based on the material properties of both the natural tissues, and 3D printed materials. The mechanical behavior of 3D printed composite structures will then be compared with the modeled behavior.
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Lange, Angela B. "­­Central pattern generators coordinate successful fertilization and egg-laying behavior in the female locust,Locusta migratoria." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105697.

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Verlinden, Heleen. "Monoamine receptors and swarming behaviour in locusts." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.95192.

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Mehta, Darshit, Ege Altan, Rishabh Chandak, Baranidharan Raman, and Shantanu Chakrabartty. "Behaving cyborg locusts for standoff chemical sensing." In 2017 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2017. http://dx.doi.org/10.1109/iscas.2017.8050610.

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Mehta, Darshit, Ege Altan, Rishabh Chandak, Baranidharan Raman, and Shantanu Chakrabartty. "Live demonstration: Behaving cyborg locusts for standoff chemical sensing." In 2017 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2017. http://dx.doi.org/10.1109/iscas.2017.8050717.

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De Keyser, Rien. "Age-related differences in behaviour in the desert locust,Schistocerca gregaria." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.112589.

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Du, Qiang, Qinglong Wen, Hongsheng Yuan, Ting Wang, and Shenhui Ruan. "Benchmark Study of RBHT Experiment for the Effect of Spacer Grids on Reflood Heat Transfer With LOCUST Code." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-64465.

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Abstract In this study, the system thermal-hydraulic code LOCUST is applied to simulate reflood heat transfer experiments conducted in the RBHT facility, and the effect of spacer grids are considered. The calculation results of LOCUST are compared with experimental data and the calculations of RELAP5 4.0. The results show that both LOCUST and RELAP5 4.0 are capable of predicting the reflood behaviors at a satisfactory level. Besides, the calculations of cladding temperature and heat transfer coefficient are generally in good agreement with experimental data. When spacer grids are introduced, PCT calculated by RELAP5 4.0 and LOCUST are 1178K and 1201K, respectively. However, the calculations without spacer girds are 1184K and 1206K, respectively. The comparison reveals that a decrease of around 5K in the PCT occurs due to spacer grids.
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Triono, Muhammad Andi Abdillah. "Understanding Locus of Control on Emerging Adults Financial Behavior." In International Conference on Strategic Issues of Economics, Business and, Education (ICoSIEBE 2020). Atlantis Press, 2021. http://dx.doi.org/10.2991/aebmr.k.210220.050.

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Ribeiro, Tiago M., and V. Leonardo Paucar. "Problem solving in combinatorial optimization based on the algorithmic model of attack behavior of locust swarm." In ICC '17: Second International Conference on Internet of Things, Data and Cloud Computing. ACM, 2017. http://dx.doi.org/10.1145/3018896.3025136.

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Reports on the topic "Locusts – Behavior"

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Andor, Mark, James Cox, Andreas Gerster, Michael Price, Stephan Sommer, and Lukas Tomberg. Locus of Control and Prosocial Behavior. National Bureau of Economic Research, 2022. http://dx.doi.org/10.3386/w30359.

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Zinkin, Mary. A Study of Ability to Choose Appropriate Conflict Behavior Determined by the Relationship Between Locus of Control and Conflict Behavior Styles. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.335.

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