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Fig. 9 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 9. Terminalia of the holotype of Tachydromia lusitanica (Grootaert, Shamshev & Andrade, 2009) from Portugal, Braga, Gilmonde (RBINS). A. Right surstylus. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. Figure adapted from Grootaert et al. 2009.

Fig. 8 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 8. Terminalia of Tachydromia iberica (Arias, 1919) from Portugal, Leiria, Porto de Mós (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm

Fig. 7 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 7. Terminalia of Tachydromia iberica (Arias, 1919) from Spain, Segovia, El Espinar (Central System) (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 6 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 6. Terminalia of Tachydromia iberica (Arias, 1919) from Spain, Madrid (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 5 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 5. Terminalia of the holotype of Tachydromia ebejeri Gonçalves, Grootaert & Andrade sp. nov., holotype (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 4 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 4. Terminalia of Tachydromia cantabrica Gonçalves, Grootaert & Andrade sp. nov., holotype (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 10 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 10. Terminalia of Tachydromia nigrohirta Gonçalves, Grootaert & Andrade sp. nov., holotype (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 20 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 20. Drawings of the tip of stenopterous wings and images obtained by scanning electron microscope (SEM) of the micropterous wings. Males are pictured in the left column, females in the right. A–B. T. ebejeri Gonçalves, Grootaert & Andrade sp. nov. C–D. T. cantabrica Gonçalves, Grootaert & Andrade sp. nov. E–F. T. lusitanica (Grootaert, Shamshev & Andrade, 2009). G–H. T. nigrohirta Gonçalves, Grootaert & Andrade sp. nov. Scale bars: A–B, D, F, H = 10 µm; C, E, G = 50 µm.

Fig. 3 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 3. Terminalia of Tachydromia apterygon Plant & Deeming, 2006 from Italy, Lazio, Posta (RBINS). A. Right surstylus and right epandrial lamella. B. Epandrium with cerci. C. Left epandrial lamella and left surstylus. D. Right surstylus. Scale bar: 0.1 mm.

Fig. 1 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 1. Currently known distribution of the Iberian ant-like Tachydromia Meigen, 1803. Each dot represents a presence point, with each colour corresponding to a different species. When two species co-occur in the same area, their presence is represented by a smaller dot on top of a dot of regular dimension, each of those with the colour corresponding to the co-occurring species. The dots surrounded by a black circle with a vertical line represent localities previously known.

Fig. 2 in Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae)

Fig. 2. Maximum-likelihood tree (ln L = -29397.646621) based on the combined dataset (COI, nontrimmed 28S,12S, AATS and PGD) using Garli ver. 2.01.1067 and the structural alignment for 28S. Bootstrap support values (below) and Bayesian posterior probabilities (above) are depicted at the nodes (only> 50 or> 0.5, respectively). Abbreviations: BS = Bootstrap support values; PP = Bayesian posterior probabilities. A greyscale is used to highlight the ingroup, where the darkest shade of grey highlights the Iberian flightless ant-like species of Tachydromia Meigen, 1803, followed by a lighter shade which includes T. apterygon Plant & Deeming, 2006, hence representing all the flightless species occurring in southern Europe and, finally, the lighter shade covers all Tachydromia analysed, including the macropterous species assigned to different species groups sensu Chvála (1970). The white bar indicates the species originally assigned to genus Pieltainia Arias, 1919, while the grey bars indicate the taxa originally assigned to genus different species-groups sensu Chvála (1970).

opencc-zeroDec 2014View details →

Data from: Host manipulation by an ichneumonid spider ectoparasitoid that takes advantage of preprogrammed web-building behaviour for its cocoon protection

Host manipulation by parasites and parasitoids is a fascinating phenomenon within evolutionary ecology, representing an example of extended phenotypes. To elucidate the mechanism of host manipulation, revealing the origin and function of the invoked actions is essential. Our study focused on the ichneumonid spider ectoparasitoid Reclinervellus nielseni, which turns its host spider (Cyclosa argenteoalba) into a drugged navvy, to modify the web structure into a more persistent cocoon web so that the wasp can pupate safely on this web after the spider's death. We focused on whether the cocoon web originated from the resting web that an unparasitized spider builds before moulting, by comparing web structures, building behaviour and silk spectral/tensile properties. We found that both resting and cocoon webs have reduced numbers of radii decorated by numerous fibrous threads and specific decorating behaviour was identical, suggesting that the cocoon web in this system has roots in the innate resting web and ecdysteroid-related components may be responsible for the manipulation. We also show that these decorations reflect UV light, possibly to prevent damage by flying web-destroyers such as birds or large insects. Furthermore, the tensile test revealed that the spider is induced to repeat certain behavioural steps in addition to resting web construction so that many more threads are laid down for web reinforcement.

opencc-zeroSep 2019View details →

Evidence for individual discrimination and numerical assessment in collective antipredator behaviour in wild jackdaws (Corvus monedula)

Collective responses to threats occur throughout the animal kingdom but little is known about the cognitive processes underpinning them. Antipredator mobbing is one such response. Approaching a predator may be highly risky, but the individual risk declines and the likelihood of repelling the predator increases in larger mobbing groups. The ability to appraise the number of conspecifics involved in a mobbing event could therefore facilitate strategic decisions about whether to join. Mobs are commonly initiated by recruitment calls, which may provide valuable information to guide decision-making. We tested whether the number of wild jackdaws responding to recruitment calls was influenced by the number of callers. As predicted, playbacks simulating three or five callers tended to recruit more individuals than playbacks of one caller. Recruitment also substantially increased if recruits themselves produced calls. These results suggest that jackdaws use individual vocal discrimination to assess the number of conspecifics involved in initiating mobbing events, and use this information to guide their responses. Our results show support for the use of numerical assessment in antipredator mobbing responses and highlight the need for a greater understanding of the cognitive processes involved in collective behaviour.

opencc-zeroNov 2014View details →

Data from: Effect of culling on individual badger (Meles meles) behaviour: potential implications for bovine tuberculosis transmission

1. Culling wildlife as a form of disease management can have unexpected and sometimes counterproductive outcomes. In the UK, badgers (Meles meles) are culled in efforts to reduce badger-to-cattle transmission of Mycobacterium bovis, the causative agent of bovine tuberculosis (TB). However, culling has previously been associated with both increased and decreased incidence of M. bovis infection in cattle. 2. The adverse effects of culling have been linked to cull-induced changes in badger ranging, but such changes are not well documented at the individual level. Using GPS-collars, we characterised individual badger behaviour within an area subjected to widespread industry-led culling, comparing it with the same area before culling and with three unculled areas. 3. Culling was associated with a 61% increase (95% CI 27-103%) in monthly home range size, a 39% increase (95% CI 28-51%) in nightly maximum distance from the sett, and a 17% increase (95% CI 11-24%) in displacement between successive GPS-collar locations recorded at 20-minute intervals. Despite travelling further, we found a 91.2 minute (95% CI 67.1-115.3 minute) reduction in the nightly activity time of individual badgers associated with culling. These changes became apparent while culls were ongoing and persisted after culling ended. 4. Expanded ranging in culled areas was associated with individual badgers visiting 45% (95% CI 15-80%) more fields each month, suggesting that surviving individuals had the opportunity to contact more cattle. Moreover, surviving badgers showed a 19.9-fold increase (95% CI 10.8-36.4 increase) in the odds of trespassing into neighbouring group territories, increasing opportunities for intergroup contact. 5. Synthesis and Applications: Badger culling was associated with behavioural changes among surviving badgers which potentially increased opportunities for both badger-to-badger and badger-to-cattle transmission of M. bovis. Furthermore, by reducing the time badgers spent active, culling may have reduced badgers' accessibility to shooters, potentially undermining subsequent population control efforts. Our results specifically illustrate the challenges posed by badger behaviour to cull-based TB control strategies and furthermore, they highlight the negative impacts culling can have on integrated disease control strategies.

opencc-zeroAug 2016View details →

Morphology and load transport behaviour of the seed-harvesting ant Messor barbarus Linnaeus 1767

This Excel file contains two datasets. The first dataset (sheet “Morphometric data”) gives the measure of thorax length, body mass as well as the mass of main body segments of 57 individual workers of the ant species Messor barbarus Linnaeus 1767.  The workers originated from a colony collected in Saint-Hippolyte, France (42°80 N, 2°98 E) in October 2013. The second dataset (sheet “Transportation data”) relates to observations aiming at investigating the efficiency of M. barbarus workers when transporting pieces of dry pasta on their foraging trails. The data gives the body mass, the characteristics of the item transported, the transportation method (carry or drag), as well as the time required to travel a distance of 1m for 239 individual workers from five colonies located on the campus of the Universitat Autònoma de Barcelona, Spain (41°30′00N, 2°06′49E). For each ant followed the air temperature at ground level is also indicated.

opencc-zeroOct 2023View details →

Data and R script for: Shoaling behaviour in response to turbidity in three-spined sticklebacks

Many fresh and coastal waters are becoming increasingly turbid because of human activities, which may disrupt the visually-mediated behaviours of aquatic organisms. Shoaling fish typically depend on vision to maintain collective behaviour, which has a range of benefits including protection from predators, enhanced foraging efficiency, and access to mates. Previous studies of the effects of turbidity on shoaling behaviour have focussed on changes to nearest neighbour distance and average group-level behaviours. Here, we investigated whether and how experimental shoals of three-spined sticklebacks (Gasterosteus aculeatus) in clear (<10 Nephelometric Turbidity Units (NTU)) and turbid (~35 NTU) conditions differed in five local-level behaviours of individuals (nearest and furthest neighbour distance, heading difference with nearest neighbour, bearing angle to nearest neighbour, and swimming speed). These variables are important for the emergent group-level properties of shoaling behaviour. We found an indirect effect of turbidity on nearest-neighbour distances driven by a reduction in swimming speed, and a direct effect of turbidity which increased variability in furthest neighbour distances. In contrast, the alignment and relative position of individuals was not significantly altered in turbid compared to clear conditions. Overall, our results suggest that the shoals were usually robust to adverse effects of turbidity on collective behaviour, but group cohesion was occasionally lost during periods of instability.

opencc-by-4.0Jul 2020View details →

Fig. 1 in Flower-visiting behaviour and habitats of the taxa of the Andrena wollastoni group (Hymenoptera, Anthophila, Micrandrena) on the Canary Islands compared to the Madeira Archipelago *

Fig. 1: (a) Typical crop-field margin with Hirschfeldia incana and Calendula arvensis, both frequently visited by Andrena catula (northern part of Gran Canaria, Zone IIb, 12th March 2018); photo: A. Schwabe. (b) Slope with ruderal vegetation (H. incana, frequently visited by A. g. gomerensis; additionally, Echium plantagineum and Psoralea bituminosa can be seen) with a grazed vegetation complex in the background (La Gomera, Zone IIb, 24th April 2016); photo: A. Schwabe. c: Road margin in the Teno area, with H. incana (frequently visited by A. a. tenoensis; additionally, E. plantagineum and Galactites tomentosus) (Tenerife, Zone IIA, 21st April 2016); photo: A. Schwabe. (d) A. a. tenoensis (female), collecting pollen on H. incana (margin of a small trail in the Teno area) (Tenerife, Zone IIA, 21st April 2016); photo: A. Schwabe.

opencc-by-4.0Jul 2020View details →

Fig. 2 in Flower-visiting behaviour and habitats of the taxa of the Andrena wollastoni group (Hymenoptera, Anthophila, Micrandrena) on the Canary Islands compared to the Madeira Archipelago *

Fig. 2: (a) Habitat of the 'Cordillera Dorsal' species Descurainia lemsii, which is frequently visited by A. a. wildpreti (upper pine forest complex with rocky slopes, Zone III). Bottom right (not visited by A. a. wildpreti): Sideritis oroteneriffae ('Cordillera Dorsal' species); foreground: Adenocarpus viscosus (Tenerife, Montaña Ayosa; 22nd May 2019); photo: A. Schwabe. (b) Close-up of flowering and fruiting D. lemsii on a margin of rocky slopes in the Pinus canariensis forest complex (Tenerife, Montaña Ayosa; 26th May 2019); photo: A. Schwabe. (c) A. a. wildpreti (female, body length 7.7 mm); site and date of Fig. 2b; photo: A. Kratochwil. (d) Habitat of A. lineolata, visiting mainly D. bourgaeana (foreground) and Cytisus supranubius (white, background) (Tenerife, below Izaña, Teide area; Zone IV; 21st May 2019); photo: A. Schwabe.

opencc-by-4.0Aug 2011View details →

Fig. 4 in Comparative Biology Of Cave-Dwelling Spitting Spiders (Araneae: Scytodidae): Parental Care, Cooperative Prey-Capture, Cannibalism, Natal Dispersal And Reproductive Behaviour

Fig. 4. Scytodid egg-sac. (A) Typical egg-sac of Scytodes cavernarum, S. fusca and the Philippines Scytodes sp. 2; and (B) Scytodes magna egg-sac. Note the denser silk surrounding the eggs of S. magna.