http://publicationslist.org/data/a.narendra/atom.xml Ajay Narendrahttp://publicationslist.org/a.narendra$basepathfavicon.icoRecent additions to Ajay Narendra's PublicationsList.org pagehttp://publicationslist.org/publications.png2011-05-27T11:20:17Z http://publicationslist.org/a.narendra/refid30 2011-05-26T03:16:02Z

The Australian desert ant Melophorus bagoti shows remarkable visual navigational skills relying on visual rather than on chemical cues during their foraging trips. M. bagoti ants travel individually through a visually cluttered environment guided by landmarks as well as path integration. An examination of their visual system is hence of special interest and we address this here. Workers exhibit di...<br/><br/>Sebastian Schwarz, Ajay Narendra, Jochen Zeil (2011) <i>Arthropod Struct Dev</i> <i></i> <i></i> 40: 128-134<br/>

http://publicationslist.org/a.narendra/refid29 2011-05-26T03:15:16Z

Ajay Narendra, Heloise Gibb, TM Musthak Ali (2011) <i>Insect Conservation and Diversity</i> 4: 132-141<br/>

http://publicationslist.org/a.narendra/refid32 2011-05-26T03:16:29Z

Animals are active at different times of the day and their activity schedules are shaped by competition, time-limited food resources and predators. Different temporal niches provide different light conditions, which affect the quality of visual information available to animals, in particular for navigation. We analysed caste-specific differences in compound eyes and ocelli in four congeneric sympa...<br/><br/>Ajay Narendra, Samuel F Reid, Birgit Greiner, Richard A Peters, Jan M Hemmi, Willi A Ribi, Jochen Zeil (2011) <i>Proc Biol Sci</i> <i></i> <i></i> 278: 1141-1149<br/>

http://publicationslist.org/a.narendra/refid35 2011-05-26T03:19:15Z

Piyankarie Jayatilaka, Ajay Narendra, Samuel F Reid, Paul Cooper, Jochen Zeil (2011) <i>Journal of Experimental Biology</i> : in press<br/>

http://publicationslist.org/a.narendra/refid34 2011-03-10T21:14:06Z

Samuel F Reid, Ajay Narendra, Jan M Hemmi, Jochen Zeil (2011) <i>Journal of Experimental Biology</i> 214: 363-370<br/>

http://publicationslist.org/a.narendra/refid31 2011-03-10T21:17:28Z

Many animals become active during twilight, a narrow time window where the properties of the visual environment are dramatically different from both day and night. Despite the fact that many animals including mammals, reptiles, birds and insects become active in this specific temporal niche, we do not know what cues trigger this activity. To identify the onset of specific temporal niches, animals ...<br/><br/>Ajay Narendra, Samuel F Reid, Jan M Hemmi (2010) <i>Proc Biol Sci</i> <i></i> <i></i> 277: 1687 1531-1538<br/>

http://publicationslist.org/a.narendra/refid27 2010-11-22T04:04:25Z

The Central Australian desert ant Melophorus bagoti is the most thermophilic ant on the continent. It comes out to forage during the hottest part of the day in the summer months. The ant shares a cluttered, plant-filled habitat with other arthropods and uses a range of navigational strategies. We review recent studies on this species concerning its use of habitual routes, distant landmarks, landma...<br/><br/>Ken Cheng, Ajay Narendra, Stefan Sommer, Rüdiger Wehner (2009) <i>Behav Processes</i> <i></i> <i></i> 80: 3 261-268<br/>

http://publicationslist.org/a.narendra/refid25 2010-11-22T04:09:31Z

Search is an important tool in an ant's navigational toolbox to relocate food sources and find the inconspicuous nest entrance. In habitats where landmark information is sparse, homing ants travel their entire home vector before searching systematically with ever increasing loops. Search strategies have not been previously investigated in ants that inhabit landmark-rich habitats where they typical...<br/><br/>Ajay Narendra, Ken Cheng, Danielle Sulikowski, Rüdiger Wehner (2008) <i>J Comp Physiol A Neuroethol Sens Neural Behav Physiol</i> <i></i> <i></i> 194: 11 929-938<br/>

http://publicationslist.org/a.narendra/refid12 2010-12-01T21:20:07Z

This study in Western Ghats, India, investigates the relation between nesting sites of ants and a single remotely sensed variable: the Normalised Difference Vegetation Index (NDVI). We carried out sampling in 60 plots each measuring 30 x 30 m and recorded nest sites of 13 ant species. We found that NDVI values at the nesting sites varied considerably between individual species and also between the...<br/><br/>Ajay Narendra, T V Ramachandra (2008) <i>Asian Myrmecology</i> 2: 51-62<br/>

http://publicationslist.org/a.narendra/refid6 2010-12-01T21:20:48Z

A variety of social insects use visual cues for homing. In this study, we examine the possible factors affecting the learning and retention of nest-associated visual cues by the Australian desert ant Melophorus bagoti and the manner in which such cues are encoded by foraging ants. We placed four prominent cylindrical landmarks around a nest and trained foragers from that nest to a food source. Ant...<br/><br/>Ajay Narendra, Aung Si, Danielle Sulikowski, Ken Cheng (2007) <i>Behavioral Ecology and Sociobiology</i> 61: 10 1543-1553<br/>

http://publicationslist.org/a.narendra/refid1 2010-12-01T21:21:23Z

Individually foraging ants are known to return to their nest by using path-integration and recording visual information present in the environment. The interaction between the path integrator and the information provided by the visual cues in an Australian desert ant are reported here. Ants were trained to travel in a 1-m wide and 20-m long corridor of cylinders. Homeward paths of trained ants wer...<br/><br/>Ajay Narendra (2007) <i>Journal of Experimental Biology</i> 210: Pt 10 1804-1812<br/>

http://publicationslist.org/a.narendra/refid2 2010-12-01T21:21:46Z

Highly evolved eusocial insects such as ants return from a food source to their nest by the shortest possible distance. This form of navigation, called path-integration, involves keeping track of the distance travelled and the angles steered on the outbound journey, which then aids in the computation of the shortest return distance. In featureless terrain, ants rely on the path integrator to trave...<br/><br/>Ajay Narendra (2007) <i>Journal of Experimental Biology</i> 210: Pt 10 1798-1803<br/>

http://publicationslist.org/a.narendra/refid3 2010-11-22T04:09:18Z

Estimation of distance travelled (odometry) forms a vital part of navigation for solitarily foraging ants. In this study we investigated the properties of odometric memory in the Australian desert ant Melophorus bagoti. Ants were trained to travel in linear channels to a feeder placed at 6 m or 12 m from the nest. We determined if the ability to estimate distances accurately increased with experie...<br/><br/>A Narendra, K Cheng, R Wehner (2007) <i>Journal of Experimental Biology</i> 210: Pt 4 570-577<br/>

http://publicationslist.org/a.narendra/refid33 2010-11-22T04:10:36Z

Birgit Greiner, Ajay Narendra, Samuel F Reid, Marie Dacke, Willi A Ribi, Jochen Zeil (2007) <i>Curr Biol</i> <i></i> <i></i> 17: 20 R879-R880<br/>

http://publicationslist.org/a.narendra/refid5 2010-11-22T04:11:06Z

Assuming that the acquisition and retention of memories have costs, properties of memories should fit the functional requirements for the system of memory. Based on a functional analysis of what path integration is meant to do, we predicted that odometric memories in desert ants should show (1) little improvement with repeated training: performance should be as good after one training trial as aft...<br/><br/>K Cheng, A Narendra, R Wehner (2006) <i>Behavioral Ecology</i> 17: 2 227-235<br/>

http://publicationslist.org/a.narendra/refid7 2008-10-09T02:41:27Z

A Narendra, SM Kumar (2006) :<br/>

http://publicationslist.org/a.narendra/refid8 2008-09-04T04:55:08Z

Narendra A (2003) <i>Insect Environment</i> 9: 89-90<br/>

http://publicationslist.org/a.narendra/refid10 2008-09-04T04:59:28Z

Viswanathan G & Narendra A (2000) <i> Insect Environment</i> 6: 34-35<br/>

http://publicationslist.org/a.narendra/refid9 2008-09-04T04:56:35Z

Viswanathan G, Narendra A (2000) <i>J Ecobiol</i> 12: 115-122<br/>

http://publicationslist.org/a.narendra/refid24 2008-10-09T01:08:53Z

G Viswanathan, A Narendra (1999) <i>Insect Environment</i> 5: 23-25<br/>