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Exploring nest structures of acorn dwelling ants with X-ray microtomography and surface-based three-dimensional visibility graph analysis

Published on Aug 19, 2018in Philosophical Transactions of the Royal Society B 5.67
· DOI :10.1098/rstb.2017.0237
Tasos Varoudis4
Estimated H-index: 4
(UCL: University College London),
Abigail G. Swenson1
Estimated H-index: 1
(PC: Providence College)
+ 1 AuthorsJames S. Waters9
Estimated H-index: 9
(PC: Providence College)
The physical spaces within which organisms live affect their biology and in many cases can be considered part of their extended phenotype. The nests of social insect societies have a fundamental impact on their ability to function as complex superorganisms. Ants in many species excavate elaborate subterranean nests, but others inhabit relatively small pre-formed cavities within rock crevices and hollow seeds. Temnothorax ants, which often nest within acorns, have become a model system for studying collective decision making. While these ants have demonstrated remarkable degrees of rationality and consistent precision with regard to their nest choices, never before has the fine scale internal architecture and spatial organization of their nests been investigated. We used X-ray microtomography to record high-resolution three-dimensional (3D) scans of Temnothorax colonies within their acorns. These data were then quantified using image segmentation and surface-based 3D visibility graph analysis, a new comput...
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  • Citations (1)
Published on Feb 1, 2018in Agricultural and Forest Entomology 1.49
Ana O. Farinha1
Estimated H-index: 1
(Instituto Superior de Agronomia),
Manuela Branco21
Estimated H-index: 21
(Instituto Superior de Agronomia)
+ 6 AuthorsAlain Roques27
Estimated H-index: 27
(INRA: Institut national de la recherche agronomique)
The consumption of edible pine seeds of stone pine by the invasive Leptoglossus occidentalis represents a major concern for producers in Mediterranean countries but, to date, little knowledge is available about its feeding process on these seeds. In the present study, we tested whether L. occidentalis is capable of feeding upon mature pine seeds and also estimated the impact that they may induce. Sound pine seeds were offered to bugs under laboratory conditions. Seed content was analyzed via a m...
4 Citations Source Cite
Published on Dec 1, 2017
Danny Poinapen3
Estimated H-index: 3
(UWO: University of Western Ontario),
Joanna K. Konopka5
Estimated H-index: 5
(UWO: University of Western Ontario)
+ 3 AuthorsDavid W. Holdsworth44
Estimated H-index: 44
(UWO: University of Western Ontario)
Live imaging of whole invertebrates can be accomplished with X-ray micro-computed tomography (micro-CT) at 10-100 μm spatial resolution. However, image quality could be compromised by the movement of live subjects, producing image artefacts. We tested the feasibility of using CO2 gas to induce temporary full-immobilization of sufficient duration to image live insects based on their ability to tolerate hypoxic conditions. Additionally, we investigated the effects of these prolonged hypoxic condit...
5 Citations Source Cite
Published on Oct 1, 2017in Systematic Entomology 4.24
Phillip Barden6
Estimated H-index: 6
(NJIT: New Jersey Institute of Technology),
Hollister W. Herhold1
Estimated H-index: 1
(AMNH: American Museum of Natural History),
David A. Grimaldi40
Estimated H-index: 40
(AMNH: American Museum of Natural History)
An unusual Cretaceous trap jaw ant is described from Burmese amber dated to the Late Cretaceous. Linguamyrmex vladi gen.n. sp.n. is distinguished by an unusual suite of morphological characters indicating specialized predatory behaviour and an adaptive strategy no longer found among modern ant lineages. The clypeus, highly modified as in other closely related haidomyrmecine hell ants, is equipped with a paddle-like projection similar to Ceratomyrmex. X-ray imaging reveals that this clypeal paddl...
6 Citations Source Cite
Published on Sep 15, 2017in The Journal of Experimental Biology 3.18
Samuel A. Ocko6
Estimated H-index: 6
(MIT: Massachusetts Institute of Technology),
Hunter King3
Estimated H-index: 3
(Harvard University)
+ 4 AuthorsL. Mahadevan67
Estimated H-index: 67
(Harvard University)
ABSTRACT How termite mounds function to facilitate climate control is still only partially understood. Recent experimental evidence in the mounds of a single species, the south Asian termite Odontotermes obesus , suggests that the daily oscillations of radiant heating associated with diurnal insolation patterns drive convective flow within them. How general this mechanism is remains unknown. To probe this, we consider the mounds of the African termite Macrotermes michaelseni , which thrives in a...
10 Citations Source Cite
Published on Apr 1, 2017in Entomologia Experimentalis Et Applicata 1.45
Daniel Aguilera-Olivares3
Estimated H-index: 3
(University of Chile),
Valeria Palma-Onetto1
Estimated H-index: 1
(University of Chile)
+ 2 AuthorsHermann M. Niemeyer38
Estimated H-index: 38
(University of Chile)
2 Citations Source Cite
Published on Mar 28, 2017in Insects
Luiz Carlos Forti14
Estimated H-index: 14
Ana Paula Protti de Andrade8
Estimated H-index: 8
+ 2 AuthorsAldenise Alves Moreira5
Estimated H-index: 5
Atta capiguara is a grass-cutting ant species frequently found in Cerrado biome. However, little is known about the giant nest architecture of this ant. In this study, we investigated the architecture of three A. capiguara nests from a fragment of Cerrado in Botucatu, Sao Paulo, Brazil. Casts were made of the nests by filling them with cement to permit better visualization of internal structures such as chambers and tunnels. After excavation, the depth and dimensions (length, width, and height) ...
4 Citations Source Cite
Doug Booher1
Estimated H-index: 1
(UCLA: University of California, Los Angeles),
Joe A. MacGown5
Estimated H-index: 5
(MSU: Mississippi State University)
+ 1 AuthorsRichard M. Duffield7
Estimated H-index: 7
(HU: Howard University)
ABSTRACT Here we report on nut-nesting ant communities in the southeastern United States. We compared species diversity, ant abundance, and nut occupancy rates among sites in five states, and report the spatial dispersion of ant colonies in nuts in relation to colony-housing opportunities created by nuts and nest-site choice. Our results indicated that species diversity and nut occupancy rates do not differ among sites or states and that ant-occupied nuts are spatially aggregated across ant spec...
3 Citations Source Cite
Published on Jan 1, 2017in The Journal of Experimental Biology 3.18
Andrea Perna16
Estimated H-index: 16
(ULB: Université libre de Bruxelles),
Guy Theraulaz51
Estimated H-index: 51
(CNRS: Centre national de la recherche scientifique)
ABSTRACT The nests built by social insects are among the most complex structures produced by animal groups. They reveal the social behaviour of a colony and as such they potentially allow comparative studies. However, for a long time, research on nest architecture was hindered by the lack of technical tools allowing the visualisation of their complex 3D structures and the quantification of their properties. Several techniques, developed over the years, now make it possible to study the organisat...
9 Citations Source Cite
Published on Oct 1, 2016in Ethology 1.70
Joseph Karlik1
Estimated H-index: 1
(UNC: University of North Carolina at Chapel Hill),
Mary Jane Epps2
Estimated H-index: 2
(Mary Baldwin College)
+ 1 AuthorsClint A. Penick11
Estimated H-index: 11
(NCSU: North Carolina State University)
Nests provide a buffer against environmental variation, but conditions may also vary at different locations within a nest. Conditions can vary based on abiotic factors, such as moisture and temperature, as well as biotic factors, such as the presence of microbes and potential pathogens. Therefore, characterizing how animals adjust their position inside their nests to track microclimate preferences while at the same time preventing pathogen exposure is necessary to understand the benefits nests p...
8 Citations Source Cite
Cited By1
Published on Jul 1, 2019in Behavioural Processes 1.55
Julia Giehr3
Estimated H-index: 3
Tomer J. Czaczkes15
Estimated H-index: 15
Jürgen Heinze57
Estimated H-index: 57
Source Cite
Published on Aug 19, 2018in Philosophical Transactions of the Royal Society B 5.67
Noa Pinter-Wollman18
Estimated H-index: 18
(UCLA: University of California, Los Angeles),
A Penn23
Estimated H-index: 23
(UCL: University College London)
+ 1 AuthorsStephen M. Fiore32
Estimated H-index: 32
(UCF: University of Central Florida)
Built structures, such as animal nests or buildings that humans occupy, serve two overarching purposes: shelter and a space where individuals interact. The former has dominated much of the discussion in the literature. But, as the study of collective behaviour expands, it is time to elucidate the role of the built environment in shaping collective outcomes. Collective behaviour in social animals emerges from interactions, and collective cognition in humans emerges from communication and coordina...
3 Citations Source Cite