Дисертації з теми "Predator avoidance behaviour"
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Sievert, Thorbjörn. "Behavioural responses of mice to predator odour components." Thesis, Linköpings universitet, Biologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119355.
Повний текст джерелаHay, Alexandra Morag. "Foraging behaviour of the ruffe (Gymnocephalus cernuus) and predator avoidance by freshwater isopod Asellus aquaticus : implications for predator-prey interactions." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312702.
Повний текст джерелаBorner, Karoline. "Influence of turbidity on social structure in guppies, Poecilia reticulata." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17622.
Повний текст джерелаMost species have been subjected to environmental changes during their evolutionary history. However, due to human activity, environmental changes are currently occurring at higher speeds and on a greater scale, presenting new challenges for many species. Pollution, as a major type of human-induced environmental change, may not only affect physiology but also behaviour, thereby affecting population dynamics and consequently biodiversity. The topic of my dissertation is the effect of turbidity from quarrying on the behaviour and social association pattern of the guppy (Poecilia reticulata). Turbidity impairs the fish’s ability to use visual cues during social interactions, which in turn helps increases efficiency of foraging and avoiding predators. I investigated the initial re-sponse of guppies to turbidity and subsequently tested whether turbidity-experienced vs turbidity-inexperienced populations differ in their social association patterns and how they cope with ecological challenges. Both lab-reared and wild-caught guppies that were inexperienced with turbidity reduced social associations in turbid water in con-trast to turbidity-experienced fish. A Markov chain analysis revealed that lab-reared guppies increased associations with particular neighbours. Similarly, wild-caught gup-pies maintained the number of initiated associations under turbid conditions. The in-crease in non-initiated associations suggests a stronger connectivity within the shoal, leading to higher information transmission in a poor visual environment. Additional results showed that this altered social structure enabled turbidity-experienced fish to maintain the frequency of mating attempts in turbidity and to avoid predation risk. This suggests that guppies have the ability to adjust to turbidity, but with major changes in their social structure, which might have an impact on population dynamics.
Nelson, Erik Healy. "Population consequences of predator avoidance behavior in the pea aphid /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.
Повний текст джерелаHörnfeldt, Birger. "Cycles of voles, predators, and alternative prey in boreal Sweden." Doctoral thesis, Umeå universitet, Ekologi och geovetenskap, 1991. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100711.
Повний текст джерелаDiss. (sammanfattning) Umeå : Umeå universitet, 1991, härtill 7 uppsatser
digitalisering@umu
Dempsey, Brian L. "Predator-Avoidance of Larval Black-bellied Salamanders (Desmognathus quadramaculatus) in Response to Cues from Native and Nonnative Salmonids." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3824.
Повний текст джерелаSommers, Pacifica. "Interacting Effects of Predation and Competition in the Field and in Theory." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/595999.
Повний текст джерелаCushing, Paula Elizabeth. "A study of disturbance behaviors in Uloborus glomosus (Araneae; Uloboridae) as possible predator avoidance strategies." Thesis, This resource online, 1988. http://scholar.lib.vt.edu/theses/available/etd-10022008-063248/.
Повний текст джерелаMcNeill, Myndee. "Predation Avoidance Response Behaviors, Oviposition and Distribution of the Intertidal Gastropod Lirularia succincta." Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11491.
Повний текст джерелаThe small trochid gastropod
Committee in charge: Dr. Craig M. Young, Chair; Dr. Richard B. Emlet, Member; Dr. Alan L. Shanks, Member
Maxey, Claire Angela. "Home Is Where The Food Is: Predator Avoidance Behaviors in the Black-tailed Prairie Dog (Cynomys Ludovicianus)." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321880.
Повний текст джерелаColeman, Benjamin Thomas. "Spatial and temporal determinants of samango monkey (Cercopithecus mitis erythrarchus) resource acquisition and predation avoidance behaviour." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/7342/.
Повний текст джерелаStorsberg, Silke [Verfasser]. "How predator odors affect avoidance behavior of laboratory and wild rat strains / Silke Diana Ariadne Margarete Else Annemarie Storsberg." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2018. http://d-nb.info/1219936952/34.
Повний текст джерелаStorsberg, Silke Diana Ariadne Margarete Else Annemarie [Verfasser]. "How predator odors affect avoidance behavior of laboratory and wild rat strains / Silke Diana Ariadne Margarete Else Annemarie Storsberg." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2018. http://d-nb.info/1219936952/34.
Повний текст джерелаShabani, Shkelzen. "The Role of Chemical Senses in Predation, Risk Assessment, and Social Behavior of Spiny Lobsters." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/biology_diss/44.
Повний текст джерелаFalkowski, Marcin. "The spectral and temporal properties of fiddler crab photoreceptors in the context of predator avoidance." Phd thesis, 2017. http://hdl.handle.net/1885/144592.
Повний текст джерелаPai, Jen-Hui, and 白任暉. "The Interaction of High Temperature and UV-B Radiation on Tadpole Development, Morphology and Predator Avoidance Behaviour." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/06696938348372207300.
Повний текст джерела國立臺灣大學
生態學與演化生物學研究所
104
Amphibians are ectotherms that reside in both aquatic and terrestrial systems which make them extremely sensitive to changes in their environment, and past research has shown that global climate change has contributed substantially to the recent global amphibian decline. Although there are plentiful research on the effects of temperature or UV-B radiation on amphibian development, morphology, and behaviour, respectively, there has been very little research on the interaction of high temperature and UV-B on amphibians. The aim of this study is to determine the interaction effects of high temperature and UV-B, under a global warming scenario, on tadpole development and morphology, as well as to determine how these effects would impact the predator avoidance behaviour of tadpoles. I examined the independent and interaction effects of temperature and UV-B on various developmental and morphological traits of the LaTouche''s frog (Hylarana latouchii) by randomly distributing the egg masses into 4 different treatment groups in a 2 x 2 factorial combination of high and low temperature and UV-B. The developmental and morphological traits of the embryos/tadpoles were recorded and analyzed from Gosner stage 9 (G9) to Gosner stage 32 (G32). I also examined the predator avoidance response of tadpoles that have successfully reached G32 by measuring burst swimming speed. The results indicated that high UV-B had negatively affected the majority of tadpole traits including increased mortality and abnormalities, decreased longevity, and decreased tadpole overall size and width (including total length, body length, body width, and tail muscle width). This may be due to the DNA damage accumulated due to prolonged UV-B exposure. High temperature, on the other hand, had only decrease longevity and increased tail muscle width of tadpoles. The decrease in longevity revealed that slight increase in temperature may have a direct negative effect on tadpole development. Moreover, there was an interaction effect of temperature and UV-B. In this study, high temperature was ameliorating the negative effects that UV-B was exerting on tadpole. Also, morphological abnormality and damage did seem to carry over and significantly decreased burst swimming performance of tadpoles which may lead to increase in predation and decrease foraging capabilities. This study shows that under a global warming scenario, UV-B radiation is a much higher stressor to amphibian species than temperature and an incremental increase in temperature, within the species’ thermal range, may help ameliorate the morphological damages caused by UV-B.
König, Ulrike [Verfasser]. "A life less ordinary : foraging behaviour and predator avoidance in young-of-the-year perch / vorgelegt von Ulrike König." 2009. http://d-nb.info/99580754X/34.
Повний текст джерелаSmolka, Jochen. "Sampling Visual Space: Topography, colour vision and visually guided predator avoidance in fiddler crabs (Uca vomeris)." Phd thesis, 2009. http://hdl.handle.net/1885/7107.
Повний текст джерелаResearch School of Biological Sciences (RSBS, now RSB), and the Australian National University for providing funding through an ANU PhD scholarship; the Australian Department of Education, Employment and Workplace Relations for an International Postgraduate Research Scholarship; the German National Academic Foundation and the Zeiss Foundation for support through a Heinz-Dürr Scholarship; and the Australian Institute of Marine Sciences for providing accommodation and facilities during fieldwork in Queensland.
Harvey, Mark C. "Effects of social status and food availability on predator avoidance behaviour in young-of-the-year rainbow trout, oncorhynchus mykiss." Thesis, 2005. http://spectrum.library.concordia.ca/8563/1/MR10204.pdf.
Повний текст джерелаPfeil, Andreas. "Going underground : predator avoidance in Uca vomeris." Master's thesis, 2007. http://hdl.handle.net/1885/149660.
Повний текст джерелаLee, Chien-Huei, and 李健暉. "Predator avoidance and mating behavior in calanoid copepod Pseudodiaptomus annandalei." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78092909685159813040.
Повний текст джерела國立臺灣海洋大學
海洋生物研究所
94
The fitness of an organism depends upon its efficiency to escape from predator and probability of procuring mate. Copepod’s ability of escape from predation and also its mating success are highly influenced by various hydromechanical signals in the aquatic environment. The purpose of this study is to investigate the efficiency of the copepod Pseudodiaptomus annandalei to escape from predation by the fish larvae Epinephelus coioides and it’s mating success in calm and turbulent water under dark and light conditions. These experiments were also designed to assess the impact of various strength of turbulence (weak, medium and high) and the strength as well as intensity of air bubbling (600, 1200 and 1800 ml per min) on the copepod’s vulnerability to fish predation. The detection of predator’s presence and subsequent escape ability of the copepod were significantly higher in calm water than that in the turbulent water. In calm water P. annandalei was able to dart away from the fish larvae at the speed about 103 body lengths per second. Regardless of external hydromechnical signal the removal of the copepod by the fish larvae was significant higher under light condition than that in the dark. Additionally the turbulence versus calm water related differences in the vulnerability of the Pseudodiaptomid copepod to fish predation was not significant under the dark condition. According to video observations, the Pseudodiatomus annandalei has a typical mating behavior. The mating processes are encounting, pursuiting, capturing and copulation. Based on the video recording and its behavior performance, P. annandalei seems to use chemical cue such as pheromone to locate its female mate. Male copepods exhibit typical searching behaviors e.g. either accelerate its swimming speed and/or turning its swimming path in order to locate the source of the chemical cue. According to video observations, the male copepods can find its mate and copulation even under weak turbulent environment.
"SUB-LETHAL EFFECTS OF ROUNDUP ON TADPOLE DEVELOPMENT AND PREDATOR AVOIDANCE." Thesis, 2014. http://hdl.handle.net/10388/ETD-2014-01-1406.
Повний текст джерелаMelaik, Gregory Louis. "Temperature related aggression and predator avoidance in the Eastern collared lizard (Crotaphytus collaris)." 1986. http://hdl.handle.net/2097/22114.
Повний текст джерелаLarge, Scott Isaac. "Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10231.
Повний текст джерелаRUS, Tomáš. "Ovlivňuje přítomnost predátora aktivitu pulců? Srovnání reakce dvou druhů s odlišnou zkušeností s predátorem." Master's thesis, 2008. http://www.nusl.cz/ntk/nusl-47982.
Повний текст джерела