--- _id: '3529' abstract: - lang: eng text: Parallel recording of neuronal activity in the behaving animal is a prerequisite for our understanding of neuronal representation and storage of information. Here we describe the development of micro-machined silicon microelectrode arrays for unit and local field recordings. The two-dimensional probes with 96 or 64 recording sites provided high-density recording of unit and field activity with minimal tissue displacement or damage. The on-chip active circuit eliminated movement and other artifacts and greatly reduced the weight of the headgear. The precise geometry of the recording tips allowed for the estimation of the spatial location of the recorded neurons and for high-resolution estimation of extracellular current source density. Action potentials could be simultaneously recorded from the soma and dendrites of the same neurons. Silicon technology is a promising approach for high-density, high-resolution sampling of neuronal activity in both basic research and prosthetic devices. author: - first_name: Jozsef L full_name: Jozsef Csicsvari id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 - first_name: Darrell full_name: Henze, Darrell A last_name: Henze - first_name: Brian full_name: Jamieson, Brian G last_name: Jamieson - first_name: Kenneth full_name: Harris, Kenneth D last_name: Harris - first_name: Anton full_name: Sirota, Anton M last_name: Sirota - first_name: Peter full_name: Bartho, Peter last_name: Bartho - first_name: Kensall full_name: Wise, Kensall D last_name: Wise - first_name: György full_name: Buzsáki, György last_name: Buzsáki citation: ama: Csicsvari JL, Henze D, Jamieson B, et al. Massively parallel recording of unit and local field potentials with silicon-based electrodes. Journal of Neurophysiology. 2003;90(2):1314-1323. doi:10.1152/jn.00116.2003 apa: Csicsvari, J. L., Henze, D., Jamieson, B., Harris, K., Sirota, A., Bartho, P., … Buzsáki, G. (2003). Massively parallel recording of unit and local field potentials with silicon-based electrodes. Journal of Neurophysiology. American Physiological Society. https://doi.org/10.1152/jn.00116.2003 chicago: Csicsvari, Jozsef L, Darrell Henze, Brian Jamieson, Kenneth Harris, Anton Sirota, Peter Bartho, Kensall Wise, and György Buzsáki. “Massively Parallel Recording of Unit and Local Field Potentials with Silicon-Based Electrodes.” Journal of Neurophysiology. American Physiological Society, 2003. https://doi.org/10.1152/jn.00116.2003. ieee: J. L. Csicsvari et al., “Massively parallel recording of unit and local field potentials with silicon-based electrodes,” Journal of Neurophysiology, vol. 90, no. 2. American Physiological Society, pp. 1314–1323, 2003. ista: Csicsvari JL, Henze D, Jamieson B, Harris K, Sirota A, Bartho P, Wise K, Buzsáki G. 2003. Massively parallel recording of unit and local field potentials with silicon-based electrodes. Journal of Neurophysiology. 90(2), 1314–1323. mla: Csicsvari, Jozsef L., et al. “Massively Parallel Recording of Unit and Local Field Potentials with Silicon-Based Electrodes.” Journal of Neurophysiology, vol. 90, no. 2, American Physiological Society, 2003, pp. 1314–23, doi:10.1152/jn.00116.2003. short: J.L. Csicsvari, D. Henze, B. Jamieson, K. Harris, A. Sirota, P. Bartho, K. Wise, G. Buzsáki, Journal of Neurophysiology 90 (2003) 1314–1323. date_created: 2018-12-11T12:03:48Z date_published: 2003-08-01T00:00:00Z date_updated: 2021-01-12T07:44:05Z day: '01' doi: 10.1152/jn.00116.2003 extern: 1 intvolume: ' 90' issue: '2' month: '08' page: 1314 - 1323 publication: Journal of Neurophysiology publication_status: published publisher: American Physiological Society publist_id: '2856' quality_controlled: 0 status: public title: Massively parallel recording of unit and local field potentials with silicon-based electrodes type: journal_article volume: 90 year: '2003' ... --- _id: '3528' abstract: - lang: eng text: Gamma frequency oscillations (30-100 Hz) have been suggested to underlie various cognitive and motor functions. Here, we examine the generation of gamma oscillation currents in the hippocampus, using two-dimensional, 96-site silicon probes. Two gamma generators were identified, one in the dentate gyrus and another in the CA3-CA1 regions. The coupling strength between the two oscillators varied during both theta and nontheta states. Both pyramidal cells and interneurons were phase-locked to gamma waves. Anatomical connectivity, rather than physical distance, determined the coupling strength of the oscillating neurons. CA3 pyramidal neurons discharged CA3 and CA1 interneurons at latencies indicative of monosynaptic connections. Intrahippocampal gamma oscillation emerges in the CA3 recurrent system, which entrains the CA1 region via its interneurons. author: - first_name: Jozsef L full_name: Jozsef Csicsvari id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 - first_name: Brian full_name: Jamieson, Brian G last_name: Jamieson - first_name: Kensall full_name: Wise, Kensall D last_name: Wise - first_name: György full_name: Buzsáki, György last_name: Buzsáki citation: ama: Csicsvari JL, Jamieson B, Wise K, Buzsáki G. Mechanisms of gamma oscillations in the hippocampus of the behaving rat. Neuron. 2003;37(2):311-322. doi:10.1016/S0896-6273(02)01169-8 apa: Csicsvari, J. L., Jamieson, B., Wise, K., & Buzsáki, G. (2003). Mechanisms of gamma oscillations in the hippocampus of the behaving rat. Neuron. Elsevier. https://doi.org/10.1016/S0896-6273(02)01169-8 chicago: Csicsvari, Jozsef L, Brian Jamieson, Kensall Wise, and György Buzsáki. “Mechanisms of Gamma Oscillations in the Hippocampus of the Behaving Rat.” Neuron. Elsevier, 2003. https://doi.org/10.1016/S0896-6273(02)01169-8. ieee: J. L. Csicsvari, B. Jamieson, K. Wise, and G. Buzsáki, “Mechanisms of gamma oscillations in the hippocampus of the behaving rat,” Neuron, vol. 37, no. 2. Elsevier, pp. 311–322, 2003. ista: Csicsvari JL, Jamieson B, Wise K, Buzsáki G. 2003. Mechanisms of gamma oscillations in the hippocampus of the behaving rat. Neuron. 37(2), 311–322. mla: Csicsvari, Jozsef L., et al. “Mechanisms of Gamma Oscillations in the Hippocampus of the Behaving Rat.” Neuron, vol. 37, no. 2, Elsevier, 2003, pp. 311–22, doi:10.1016/S0896-6273(02)01169-8. short: J.L. Csicsvari, B. Jamieson, K. Wise, G. Buzsáki, Neuron 37 (2003) 311–322. date_created: 2018-12-11T12:03:48Z date_published: 2003-01-01T00:00:00Z date_updated: 2021-01-12T07:44:05Z day: '01' doi: 10.1016/S0896-6273(02)01169-8 extern: 1 intvolume: ' 37' issue: '2' month: '01' page: 311 - 322 publication: Neuron publication_status: published publisher: Elsevier publist_id: '2857' quality_controlled: 0 status: public title: Mechanisms of gamma oscillations in the hippocampus of the behaving rat type: journal_article volume: 37 year: '2003' ... --- _id: '3543' abstract: - lang: eng text: Both neocortical and hippocampal networks organize the firing patterns of their neurons by prominent oscillations during sleep, but the functional role of these rhythms is not well understood. Here, we show a robust correlation of neuronal discharges between the somatosensory cortex and hippocampus on both slow and fine time scales in the mouse and rat. Neuronal bursts in deep cortical layers, associated with sleep spindles and delta waves/slow rhythm, effectively triggered hippocampal discharges related to fast (ripple) oscillations. We hypothesize that oscillation-mediated temporal links coordinate specific information transfer between neocortical and hippocampal cell assemblies. Such a neocortical-hippocampal interplay may be important for memory consolidation. author: - first_name: Anton full_name: Sirota, Anton M last_name: Sirota - first_name: Jozsef L full_name: Jozsef Csicsvari id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 - first_name: Derek full_name: Buhl, Derek L last_name: Buhl - first_name: György full_name: Buzsáki, György last_name: Buzsáki citation: ama: Sirota A, Csicsvari JL, Buhl D, Buzsáki G. Communication between neocortex and hippocampus during sleep in rodents. PNAS. 2003;100(4):2065-2069. doi:10.1073/pnas.0437938100 apa: Sirota, A., Csicsvari, J. L., Buhl, D., & Buzsáki, G. (2003). Communication between neocortex and hippocampus during sleep in rodents. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.0437938100 chicago: Sirota, Anton, Jozsef L Csicsvari, Derek Buhl, and György Buzsáki. “Communication between Neocortex and Hippocampus during Sleep in Rodents.” PNAS. National Academy of Sciences, 2003. https://doi.org/10.1073/pnas.0437938100. ieee: A. Sirota, J. L. Csicsvari, D. Buhl, and G. Buzsáki, “Communication between neocortex and hippocampus during sleep in rodents,” PNAS, vol. 100, no. 4. National Academy of Sciences, pp. 2065–2069, 2003. ista: Sirota A, Csicsvari JL, Buhl D, Buzsáki G. 2003. Communication between neocortex and hippocampus during sleep in rodents. PNAS. 100(4), 2065–2069. mla: Sirota, Anton, et al. “Communication between Neocortex and Hippocampus during Sleep in Rodents.” PNAS, vol. 100, no. 4, National Academy of Sciences, 2003, pp. 2065–69, doi:10.1073/pnas.0437938100. short: A. Sirota, J.L. Csicsvari, D. Buhl, G. Buzsáki, PNAS 100 (2003) 2065–2069. date_created: 2018-12-11T12:03:53Z date_published: 2003-02-18T00:00:00Z date_updated: 2021-01-12T07:44:12Z day: '18' doi: 10.1073/pnas.0437938100 extern: 1 intvolume: ' 100' issue: '4' month: '02' page: 2065 - 2069 publication: PNAS publication_status: published publisher: National Academy of Sciences publist_id: '2841' quality_controlled: 0 status: public title: Communication between neocortex and hippocampus during sleep in rodents type: journal_article volume: 100 year: '2003' ... --- _id: '3593' abstract: - lang: eng text: Temporal logics such as Computation Tree Logic (CTL) and Linear Temporal Logic (LTL) have become popular for specifying temporal properties over a wide variety of planning and verification problems. In this paper we work towards building a generalized framework for automated reasoning based on temporal logics. We present a powerful extension of CTL with first-order quantification over the set of reachable states for reasoning about extremal properties of weighted labeled transition systems in general. The proposed logic, which we call Weighted Quantified Computation Tree Logic (WQCTL), captures the essential elements common to the domain of planning and verification problems and can thereby be used as an effective specification language in both domains. We show that in spite of the rich, expressive power of the logic, we are able to evaluate WQCTL formulas in time polynomial in the size of the state space times the length of the formula. Wepresent experimental results on the WQCTL verifier. author: - first_name: Krishnendu full_name: Krishnendu Chatterjee id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Pallab full_name: Dasgupta, Pallab last_name: Dasgupta - first_name: Partha full_name: Chakrabarti, Partha P last_name: Chakrabarti citation: ama: Chatterjee K, Dasgupta P, Chakrabarti P. A branching time temporal framework for quantitative reasoning. Journal of Automated Reasoning. 2003;30(2):205-232. doi:10.1023/A:1023217515688 apa: Chatterjee, K., Dasgupta, P., & Chakrabarti, P. (2003). A branching time temporal framework for quantitative reasoning. Journal of Automated Reasoning. Springer. https://doi.org/10.1023/A:1023217515688 chicago: Chatterjee, Krishnendu, Pallab Dasgupta, and Partha Chakrabarti. “A Branching Time Temporal Framework for Quantitative Reasoning.” Journal of Automated Reasoning. Springer, 2003. https://doi.org/10.1023/A:1023217515688. ieee: K. Chatterjee, P. Dasgupta, and P. Chakrabarti, “A branching time temporal framework for quantitative reasoning,” Journal of Automated Reasoning, vol. 30, no. 2. Springer, pp. 205–232, 2003. ista: Chatterjee K, Dasgupta P, Chakrabarti P. 2003. A branching time temporal framework for quantitative reasoning. Journal of Automated Reasoning. 30(2), 205–232. mla: Chatterjee, Krishnendu, et al. “A Branching Time Temporal Framework for Quantitative Reasoning.” Journal of Automated Reasoning, vol. 30, no. 2, Springer, 2003, pp. 205–32, doi:10.1023/A:1023217515688. short: K. Chatterjee, P. Dasgupta, P. Chakrabarti, Journal of Automated Reasoning 30 (2003) 205–232. date_created: 2018-12-11T12:04:08Z date_published: 2003-02-01T00:00:00Z date_updated: 2021-01-12T07:44:31Z day: '01' doi: 10.1023/A:1023217515688 extern: 1 intvolume: ' 30' issue: '2' month: '02' page: 205 - 232 publication: Journal of Automated Reasoning publication_status: published publisher: Springer publist_id: '2790' quality_controlled: 0 status: public title: A branching time temporal framework for quantitative reasoning type: journal_article volume: 30 year: '2003' ... --- _id: '3678' author: - first_name: Christoph full_name: Christoph Lampert id: 40C20FD2-F248-11E8-B48F-1D18A9856A87 last_name: Lampert orcid: 0000-0001-8622-7887 citation: ama: Lampert C. The Neumann operator in strictly pseudoconvex domains with weighted Bergman metric . Bonner Mathematische Schriften. 2003;356:1-165. apa: Lampert, C. (2003). The Neumann operator in strictly pseudoconvex domains with weighted Bergman metric . Bonner Mathematische Schriften. Universität Bonn, Fachbibliothek Mathematik. chicago: Lampert, Christoph. “The Neumann Operator in Strictly Pseudoconvex Domains with Weighted Bergman Metric .” Bonner Mathematische Schriften. Universität Bonn, Fachbibliothek Mathematik, 2003. ieee: C. Lampert, “The Neumann operator in strictly pseudoconvex domains with weighted Bergman metric ,” Universität Bonn, Fachbibliothek Mathematik, 2003. ista: Lampert C. 2003. The Neumann operator in strictly pseudoconvex domains with weighted Bergman metric . Universität Bonn, Fachbibliothek Mathematik. mla: Lampert, Christoph. “The Neumann Operator in Strictly Pseudoconvex Domains with Weighted Bergman Metric .” Bonner Mathematische Schriften, vol. 356, Universität Bonn, Fachbibliothek Mathematik, 2003, pp. 1–165. short: C. Lampert, The Neumann Operator in Strictly Pseudoconvex Domains with Weighted Bergman Metric , Universität Bonn, Fachbibliothek Mathematik, 2003. date_created: 2018-12-11T12:04:34Z date_published: 2003-03-31T00:00:00Z date_updated: 2021-01-12T07:45:05Z day: '31' extern: 1 intvolume: ' 356' main_file_link: - open_access: '0' url: http://pub.ist.ac.at/~chl/papers/lampert-phd2003.pdf month: '03' page: 1 - 165 publication: Bonner Mathematische Schriften publication_status: published publisher: Universität Bonn, Fachbibliothek Mathematik publist_id: '2704' quality_controlled: 0 status: public title: 'The Neumann operator in strictly pseudoconvex domains with weighted Bergman metric ' type: dissertation volume: 356 year: '2003' ... --- _id: '3725' abstract: - lang: eng text: The combination of high-resolution atomic force microscopy (AFM) imaging and single-molecule force-spectroscopy was employed to unfold single bacteriorhodopsins (BR) from native purple membrane patches at various physiologically relevant temperatures. The unfolding spectra reveal detailed insight into the stability of individual structural elements of BR against mechanical unfolding. Intermittent states in the unfolding process are associated with the stepwise unfolding of alpha-helices, whereas other states are associated with the unfolding of polypeptide loops connecting the alpha-helices. It was found that the unfolding forces of the secondary structures considerably decreased upon increasing the temperature from 8 to 52°C. Associated with this effect, the probability of individual unfolding pathways of BR was significantly influenced by the temperature. At lower temperatures, transmembrane alpha-helices and extracellular polypeptide loops exhibited sufficient stability to individually establish potential barriers against unfolding, whereas they predominantly unfolded collectively at elevated temperatures. This suggests that increasing the temperature decreases the mechanical stability of secondary structural elements and changes molecular interactions between secondary structures, thereby forcing them to act as grouped structures. author: - first_name: Harald L full_name: Harald Janovjak id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Max full_name: Kessler, Max last_name: Kessler - first_name: Dieter full_name: Oesterhelt, Dieter last_name: Oesterhelt - first_name: Hermann full_name: Gaub, Hermann last_name: Gaub - first_name: Daniel full_name: Mueller, Daniel J last_name: Mueller citation: ama: Janovjak HL, Kessler M, Oesterhelt D, Gaub H, Mueller D. Unfolding pathways of native bacteriorhodopsin depend on temperature. EMBO Journal. 2003;22(19):5220-5229. doi:10.1093/emboj/cdg509 apa: Janovjak, H. L., Kessler, M., Oesterhelt, D., Gaub, H., & Mueller, D. (2003). Unfolding pathways of native bacteriorhodopsin depend on temperature. EMBO Journal. Wiley-Blackwell. https://doi.org/10.1093/emboj/cdg509 chicago: Janovjak, Harald L, Max Kessler, Dieter Oesterhelt, Hermann Gaub, and Daniel Mueller. “Unfolding Pathways of Native Bacteriorhodopsin Depend on Temperature.” EMBO Journal. Wiley-Blackwell, 2003. https://doi.org/10.1093/emboj/cdg509. ieee: H. L. Janovjak, M. Kessler, D. Oesterhelt, H. Gaub, and D. Mueller, “Unfolding pathways of native bacteriorhodopsin depend on temperature,” EMBO Journal, vol. 22, no. 19. Wiley-Blackwell, pp. 5220–5229, 2003. ista: Janovjak HL, Kessler M, Oesterhelt D, Gaub H, Mueller D. 2003. Unfolding pathways of native bacteriorhodopsin depend on temperature. EMBO Journal. 22(19), 5220–5229. mla: Janovjak, Harald L., et al. “Unfolding Pathways of Native Bacteriorhodopsin Depend on Temperature.” EMBO Journal, vol. 22, no. 19, Wiley-Blackwell, 2003, pp. 5220–29, doi:10.1093/emboj/cdg509. short: H.L. Janovjak, M. Kessler, D. Oesterhelt, H. Gaub, D. Mueller, EMBO Journal 22 (2003) 5220–5229. date_created: 2018-12-11T12:04:50Z date_published: 2003-01-01T00:00:00Z date_updated: 2021-01-12T07:51:45Z day: '01' doi: 10.1093/emboj/cdg509 extern: 1 intvolume: ' 22' issue: '19' main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC204492/ month: '01' oa: 1 page: 5220 - 5229 publication: EMBO Journal publication_status: published publisher: Wiley-Blackwell publist_id: '2506' quality_controlled: 0 status: public title: Unfolding pathways of native bacteriorhodopsin depend on temperature type: journal_article volume: 22 year: '2003' ... --- _id: '3804' abstract: - lang: eng text: Kv3 channels are thought to be essential for the fast-spiking (FS) phenotype in GABAergic interneurons, but how these channels confer the ability to generate action potentials (APs) at high frequency is unknown. To address this question, we developed a fast dynamic-clamp system (approximately 50 kHz) that allowed us to add a Kv3 model conductance to CA1 oriens alveus (OA) interneurons in hippocampal slices. Selective pharmacological block of Kv3 channels by 0.3 mm 4-aminopyridine or 1 mm tetraethylammonium ions led to a marked broadening of APs during trains of short stimuli and a reduction in AP frequency during 1 sec stimuli. The addition of artificial Kv3 conductance restored the original AP pattern. Subtraction of Kv3 conductance by dynamic clamp mimicked the effects of the blockers. Application of artificial Kv3 conductance also led to FS in OA interneurons after complete K+ channel block and even induced FS in hippocampal pyramidal neurons in the absence of blockers. Adding artificial Kv3 conductance with altered deactivation kinetics revealed a nonmonotonic relationship between mean AP frequency and deactivation rate, with a maximum slightly above the original value. Insertion of artificial Kv3 conductance with either lowered activation threshold or inactivation also led to a reduction in the mean AP frequency. However, the mechanisms were distinct. Shifting the activation threshold induced adaptation, whereas adding inactivation caused frequency-dependent AP broadening. In conclusion, Kv3 channels are necessary for the FS phenotype of OA interneurons, and several of their gating properties appear to be optimized for high-frequency repetitive activity. author: - first_name: Cheng full_name: Lien, Cheng-Chang last_name: Lien - first_name: Peter M full_name: Peter Jonas id: 353C1B58-F248-11E8-B48F-1D18A9856A87 last_name: Jonas orcid: 0000-0001-5001-4804 citation: ama: Lien C, Jonas PM. Kv3 potassium conductance is necessary and kinetically optimized for high-frequency action potential generation in hippocampal interneurons. Journal of Neuroscience. 2003;23(6):2058-2068. apa: Lien, C., & Jonas, P. M. (2003). Kv3 potassium conductance is necessary and kinetically optimized for high-frequency action potential generation in hippocampal interneurons. Journal of Neuroscience. Society for Neuroscience. chicago: Lien, Cheng, and Peter M Jonas. “Kv3 Potassium Conductance Is Necessary and Kinetically Optimized for High-Frequency Action Potential Generation in Hippocampal Interneurons.” Journal of Neuroscience. Society for Neuroscience, 2003. ieee: C. Lien and P. M. Jonas, “Kv3 potassium conductance is necessary and kinetically optimized for high-frequency action potential generation in hippocampal interneurons,” Journal of Neuroscience, vol. 23, no. 6. Society for Neuroscience, pp. 2058–68, 2003. ista: Lien C, Jonas PM. 2003. Kv3 potassium conductance is necessary and kinetically optimized for high-frequency action potential generation in hippocampal interneurons. Journal of Neuroscience. 23(6), 2058–68. mla: Lien, Cheng, and Peter M. Jonas. “Kv3 Potassium Conductance Is Necessary and Kinetically Optimized for High-Frequency Action Potential Generation in Hippocampal Interneurons.” Journal of Neuroscience, vol. 23, no. 6, Society for Neuroscience, 2003, pp. 2058–68. short: C. Lien, P.M. Jonas, Journal of Neuroscience 23 (2003) 2058–68. date_created: 2018-12-11T12:05:16Z date_published: 2003-01-01T00:00:00Z date_updated: 2021-01-12T07:52:19Z day: '01' extern: 1 intvolume: ' 23' issue: '6' month: '01' page: 2058 - 68 publication: Journal of Neuroscience publication_status: published publisher: Society for Neuroscience publist_id: '2406' quality_controlled: 0 status: public title: Kv3 potassium conductance is necessary and kinetically optimized for high-frequency action potential generation in hippocampal interneurons type: journal_article volume: 23 year: '2003' ... --- _id: '3806' abstract: - lang: eng text: To probe exocytosis at a cortical glutamatergic synapse, we made capacitance measurements in whole-cell recorded hippocampal mossy fiber terminals. Evaluation of different methods by using a morphology-based equivalent electrical model revealed that quantitative capacitance measurements are possible in this presynaptic structure. Voltage pulses leading to presynaptic Ca2+ inflow evoked large capacitance signals that showed saturation with increasing pulse duration. The mean peak capacitance increase was 100 fF, corresponding to a pool of approximately 1,400 releasable vesicles. Thus hippocampal mossy fiber synapses have a vesicular "maxipool." Large pool size and rapid vesicle recycling may underlie the uniquely large extent of activity-dependent plasticity in this synapse. author: - first_name: Stefan full_name: Hallermann, Stefan last_name: Hallermann - first_name: Christian full_name: Pawlu, Christian last_name: Pawlu - first_name: Peter M full_name: Peter Jonas id: 353C1B58-F248-11E8-B48F-1D18A9856A87 last_name: Jonas orcid: 0000-0001-5001-4804 - first_name: Manfred full_name: Heckmann, Manfred last_name: Heckmann citation: ama: Hallermann S, Pawlu C, Jonas PM, Heckmann M. A large pool of releasable vesicles in a cortical glutamatergic synapse. PNAS. 2003;100(15):8975-8980. doi:10.1073/pnas.1432836100 apa: Hallermann, S., Pawlu, C., Jonas, P. M., & Heckmann, M. (2003). A large pool of releasable vesicles in a cortical glutamatergic synapse. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1432836100 chicago: Hallermann, Stefan, Christian Pawlu, Peter M Jonas, and Manfred Heckmann. “A Large Pool of Releasable Vesicles in a Cortical Glutamatergic Synapse.” PNAS. National Academy of Sciences, 2003. https://doi.org/10.1073/pnas.1432836100. ieee: S. Hallermann, C. Pawlu, P. M. Jonas, and M. Heckmann, “A large pool of releasable vesicles in a cortical glutamatergic synapse,” PNAS, vol. 100, no. 15. National Academy of Sciences, pp. 8975–80, 2003. ista: Hallermann S, Pawlu C, Jonas PM, Heckmann M. 2003. A large pool of releasable vesicles in a cortical glutamatergic synapse. PNAS. 100(15), 8975–80. mla: Hallermann, Stefan, et al. “A Large Pool of Releasable Vesicles in a Cortical Glutamatergic Synapse.” PNAS, vol. 100, no. 15, National Academy of Sciences, 2003, pp. 8975–80, doi:10.1073/pnas.1432836100. short: S. Hallermann, C. Pawlu, P.M. Jonas, M. Heckmann, PNAS 100 (2003) 8975–80. date_created: 2018-12-11T12:05:16Z date_published: 2003-01-01T00:00:00Z date_updated: 2021-01-12T07:52:20Z day: '01' doi: 10.1073/pnas.1432836100 extern: 1 intvolume: ' 100' issue: '15' month: '01' page: 8975 - 80 publication: PNAS publication_status: published publisher: National Academy of Sciences publist_id: '2405' quality_controlled: 0 status: public title: A large pool of releasable vesicles in a cortical glutamatergic synapse type: journal_article volume: 100 year: '2003' ... --- _id: '3921' abstract: - lang: eng text: 'Unlike most social insects, many Cardiocondyla ant species have two male morphs: wingless (ergatoid) males, who remain in the natal nest, and winged males who disperse but, strangely, before leaving may also mate within the nest. Whereas ergatoid males are highly intolerant of each other and fight among themselves, they tend to tolerate their winged counterparts. This is despite the fact that these winged males, like ergatoid males, represent mating competition. Why should ergatoid males tolerate their winged rivals? We developed a mathematical model to address this question. Our model focuses on a number of factors likely toinfluence whether ergatoid males are tolerant of winged males: ergatoid male–winged male relatedness, number of virgin queens, number of winged males, and the number of ejaculates a winged male has (winged males are sperm limited, whereas ergatoid males have lifelong spermatogenesis). Surprisingly, we found that increasing the number of virgin queens favors a kill strategy, whereas an increase in the other factors favors a let-live strategy; these predictions appear true for C. obscurior and for a number of other Cardiocondyla species. Two further aspects, unequal insemination success and multiple mating in queens, were also incorporated into the model and predictions made about their effects on toleration of winged males. The model is applicable more generally in species that have dimorphic males, such as some other ants, bees, and fig wasps.' author: - first_name: Carl full_name: Anderson, Carl last_name: Anderson - first_name: Sylvia full_name: Cremer, Sylvia id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87 last_name: Cremer orcid: 0000-0002-2193-3868 - first_name: Jürgen full_name: Heinze, Jürgen last_name: Heinze citation: ama: 'Anderson C, Cremer S, Heinze J. Live and let die: Why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals. Behavioral Ecology. 2003;14(1):54-62. doi:10.1093/beheco/14.1.54' apa: 'Anderson, C., Cremer, S., & Heinze, J. (2003). Live and let die: Why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals. Behavioral Ecology. Oxford University Press. https://doi.org/10.1093/beheco/14.1.54' chicago: 'Anderson, Carl, Sylvia Cremer, and Jürgen Heinze. “Live and Let Die: Why Fighter Males of the Ant Cardiocondyla Kill Each Other but Tolerate Their Winged Rivals.” Behavioral Ecology. Oxford University Press, 2003. https://doi.org/10.1093/beheco/14.1.54.' ieee: 'C. Anderson, S. Cremer, and J. Heinze, “Live and let die: Why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals,” Behavioral Ecology, vol. 14, no. 1. Oxford University Press, pp. 54–62, 2003.' ista: 'Anderson C, Cremer S, Heinze J. 2003. Live and let die: Why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals. Behavioral Ecology. 14(1), 54–62.' mla: 'Anderson, Carl, et al. “Live and Let Die: Why Fighter Males of the Ant Cardiocondyla Kill Each Other but Tolerate Their Winged Rivals.” Behavioral Ecology, vol. 14, no. 1, Oxford University Press, 2003, pp. 54–62, doi:10.1093/beheco/14.1.54.' short: C. Anderson, S. Cremer, J. Heinze, Behavioral Ecology 14 (2003) 54–62. date_created: 2018-12-11T12:05:54Z date_published: 2003-01-01T00:00:00Z date_updated: 2021-01-12T07:53:13Z day: '01' doi: 10.1093/beheco/14.1.54 extern: '1' intvolume: ' 14' issue: '1' language: - iso: eng month: '01' oa_version: None page: 54 - 62 publication: Behavioral Ecology publication_status: published publisher: Oxford University Press publist_id: '2233' status: public title: 'Live and let die: Why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 14 year: '2003' ... --- _id: '3922' abstract: - lang: eng text: Dispersal is advantageous, but, at the same time, it implies high costs and risks. Due to these counteracting selection pressures, many species evolved dispersal polymorphisms, which, in ants, are typically restricted to the female sex (queens). Male polymorphism is presently only known from a few genera, such as Cardiocondyla, in which winged dispersing males coexist with wingless fighter males that mate exclusively inside their maternal nests. We studied the developmental mechanisms underlying these alternative male morphs and found that, first, male dimorphism is not genetically determined, but is induced by environmental conditions (decreasing temperature and density). Second, male morph is not yet fixed at the egg stage, but it differentiates during larval development. This flexible developmental pattern of male morphs allows Cardiocondyla ant colonies to react quickly to changes in their environment. Under good conditions, they invest exclusively in philopatric wingless males. But, when environmental conditions turn bad, colonies start to produce winged dispersal males, even though these males require a many times higher investment by the colony than their much smaller wingless counterparts. Cardiocondyla ants share this potential of optimal resource allocation with other colonial animals and some seed dimorphic plants. author: - first_name: Sylvia full_name: Cremer, Sylvia id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87 last_name: Cremer orcid: 0000-0002-2193-3868 - first_name: Jürgen full_name: Heinze, Jürgen last_name: Heinze citation: ama: 'Cremer S, Heinze J. Stress grows wings: Environmental induction of winged dispersal males in Cardiocondyla ants. Current Biology. 2003;13(3):219-223. doi:10.1016/S0960-9822(03)00012-5' apa: 'Cremer, S., & Heinze, J. (2003). Stress grows wings: Environmental induction of winged dispersal males in Cardiocondyla ants. Current Biology. Cell Press. https://doi.org/10.1016/S0960-9822(03)00012-5' chicago: 'Cremer, Sylvia, and Jürgen Heinze. “Stress Grows Wings: Environmental Induction of Winged Dispersal Males in Cardiocondyla Ants.” Current Biology. Cell Press, 2003. https://doi.org/10.1016/S0960-9822(03)00012-5.' ieee: 'S. Cremer and J. Heinze, “Stress grows wings: Environmental induction of winged dispersal males in Cardiocondyla ants,” Current Biology, vol. 13, no. 3. Cell Press, pp. 219–223, 2003.' ista: 'Cremer S, Heinze J. 2003. Stress grows wings: Environmental induction of winged dispersal males in Cardiocondyla ants. Current Biology. 13(3), 219–223.' mla: 'Cremer, Sylvia, and Jürgen Heinze. “Stress Grows Wings: Environmental Induction of Winged Dispersal Males in Cardiocondyla Ants.” Current Biology, vol. 13, no. 3, Cell Press, 2003, pp. 219–23, doi:10.1016/S0960-9822(03)00012-5.' short: S. Cremer, J. Heinze, Current Biology 13 (2003) 219–223. date_created: 2018-12-11T12:05:54Z date_published: 2003-02-04T00:00:00Z date_updated: 2021-01-12T07:53:13Z day: '04' doi: 10.1016/S0960-9822(03)00012-5 extern: '1' intvolume: ' 13' issue: '3' language: - iso: eng month: '02' oa_version: None page: 219 - 223 publication: Current Biology publication_status: published publisher: Cell Press publist_id: '2234' status: public title: 'Stress grows wings: Environmental induction of winged dispersal males in Cardiocondyla ants' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 13 year: '2003' ...