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117 results for “copulation”
Figure 2 in Parthenogenetic Darevskia lizards mate frequently if they have the chance: a quantitative analysis of copulation marks in a sympatric zone
Figure 2. Variation of snout–vent length (SVL, in mm) according to the number of copulation marks in parthenogenetic females of D. armeniaca from Kuchak (Armenia). Mean values and 0.95 confidence intervals are displayed as well as the raw data with symbols proportional to the number of individuals. Letters between parenthesis on the x-axis indicate the groups according to Duncan posthost tests (p <0.05) after significant ANOVA (see results).
Figure 1 in Parthenogenetic Darevskia lizards mate frequently if they have the chance: a quantitative analysis of copulation marks in a sympatric zone
Figure 1. Representative images of females of Darevskia sp. from Kuchak (Armenia). Left: dorsal view; right: ventral view and scar detail. (a) D. valentini (2n, bisexual); (b) D. armeniaca (2n, parthenogenetic); (c) D. unisexualis (2n, parthenogenetic); (d) D. valentini × D. armeniaca (3n, backcross); (e) D. valentini × D. unisexualis (3n, backcross). Identifications are all supported by genetic data (Freitas et al. in press)
Figure 2 in On the evolution and function of caltrop cornuti in Lepidoptera - potentially damaging male genital structures transferred to females during copulation
Figure 2. Phylogenetic distribution of caltrop cornuti in (A) Ditrysia and (B) Notodontidae (Noctuoidea). Phylogenies sources: Ditrysia superfamilies: Mutanen et al. (2010); Bombycoidea families: Zwick et al. (2011); Noctuoidea families: Zahiri et al. (2011); Notodontidae subfamilies: Zahiri et al. (2011). Families and subfamilies in bold letter include at least one species with caltrop cornuti (see Table 1).
Figure 1 in On the evolution and function of caltrop cornuti in Lepidoptera - potentially damaging male genital structures transferred to females during copulation
Figure 1. (A) Distal part of intromittent organ of Theretra tryoni (Bomycoidea: Sphingidae: Macroglossinae) showing, through the wall of the phallus, caltrop cornuti attached to the uneverted endophallus; (B) intromittent organ of Erbessa lindigii (Noctuoidea: Notodontidae: Dioptinae) showing caltrop cornuti attached to the everted endophallus; (C) caltrop cornutus
FIG. 24 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 24. Tidarren cuneolatum (Tullgren). Relationship between prosoma width and tibia I length, males (n 5 29) and females (n 5 34).
FIGS 20 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIGS 20± 22. Tidarren cuneolatum (Tullgren). Functional contact in insertion of left palp (20, 21); in retrolateral (20) and prolateral view (21), female punctured. Epigynum, ventral view (22). Abbreviations: bh, basal haematodocha; mh, median haematodocha; IV, coxa IV; St, female sternum. Scale line: 0.1 mm (22).
FIG. 23 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 23. Relationship between width of palpal tarsus and prosoma width in selected small males of ®ve araneoid families. Each symbol represents one species. Measurements taken mainly from the taxonomic literature. Species arranged within families according to increase of prosoma size. Theridiidae (14): Theonoe sola Thaler and Steinberger, 1988; Carniella brignolii Thaler and Steinberger, 1988; Tidarren cuneolatum (Tullgren, 1910), arrow; Proboscidula milleri Knoāch, 1995 (covering T. cuneolatum); Carniella siam Knoāch, 1996; Pholcomma gibbum (Westring, 1851); Theridion conigerum (Simon, 1914); Paidiscura pallens (Blackwall, 1834); Theridion genistae Simon, 1873, above; Phoroncidia paradoxa (Lucas, 1846), below; Crustulina guttata (Wider, 1834); Paidiscura dromedaria (Simon, 1880); Theridion blackwalli O.P.-Cambridge, 1871; Anelosimus aulicus (C.L. Koch, 1838); Araneidae (1): Singa neta (O.P.-Cambridge, 1872); Mysmenidae (8): Mysmeniola spinifera Thaler, 1995; Synaphris calerensis Wunderlich, 1987; S. agaetensis Wunderlich, 1987; Mysmena leucoplagiata (Simon, 1879); Cepheia longiseta (Simon, 1881); S. dalmatensis Wunderlich, 1980; Trogloneta granulum Simon, 1922; Mysmenella jobi (Kraus, 1967). Theridiosomatidae (2): 24 Naatlo splendida (Taczanowski, 1873); 25 Theridiosoma gemmosum (L. Koch, 1877); Linyphiidae (11): 26 Mycula mossakowskii Schikora, 1994; 27 Trichoncus simoni (Lessert, 1904); Erigonoplus nobilis Thaler, 1991; Panamomop s palmgreni Thaler, 1993; Pelecopsis alpicus Thaler, 1991; Metopobatrus rayi (Simon, 1881); Erigonoplus globipes (L. Koch, 1872); Abacoproeces molestus Thaler, 1973; Minyriolus pusillus (Wider, 1834); Lessertinella kulczynskii (Lessert, 1909); Walckenaeria denisi Thaler, 1984.
FIG. 19 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 19. Tidarren cuneolatum (Tullgren). (a, b) Courtship, male and female on mating thread, female still twanging, male approach; (c) just before insertion; (d) functional contact, left palp inserted; (e) end of insertion, female getting rid of male; (f) transport of male to hub after wrap attack.
FIG. 17 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 17. Tidarren cuneolatum (Tullgren), courtship; (a, b) female twanging with legs II, body oscillating; (c) male approach, trailing the mating thread, (d) contact courtship; (e, f, g) male attaches mating thread and retreats to starting point; (h) male plucking; (i±k) female, orientated towards male, twanging on mating thread, male approach shortly before insertion; (k) female in mating posture, ®nal male approach. Solid lines ®rst position, dotted lines second (a, b, d, g, h), ®nely dotted lines third (a, h).
FIG. 16 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 16. Tidarren cuneolatum (Tullgren), amputation of left palp; (a) cleaning behaviour initiating amputation; (b) left palp lifted and ®xed to hub, male turning around it; (c) palp just amputated; (d) male sucking at palp.
FIGS 6 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIGS 6± 14. Tidarren cuneolatum (Tullgren). Prosoma of virgin male (6) and of male after copulation, removed from wrap attack (7); claw of female palp (8); stridulatory ridges on posterior declivity of male prosoma (9); male epigaster, note two epigastric gland spigots (10); epigynum, ventral (11) and semi-lateral view (12); left male palp, retrolateral view (13); distal palpal sclerites (14). Scale lines: 0.1 (6, 7, 13), 0.05 (11), 0.02 (12, 14) and 0.01 mm (8±10).
FIG. 15 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIG. 15. Tidarren cuneolatum (Tullgren), amputation of right palp by penultimate male; (a±e) counterclockwise rotation during phase A, right palp elevated; (f) palp ®xed to hub; (g±j) rotation during phase B; (k) palp just broken oOE; (l) sucking at amputated palp.
FIGS 2 in Palpal loss, single palp copulation and obligatory mate consumption in Tidarren cuneolatum (Tullgren, 1910) (Araneae, Theridiidae)
FIGS 2± 5. Male palp of Tidarren cuneolatum (Tullgren); retrolateral (2), prolateral (3), ventral (4) and aboral view (5). Right palp, unexpanded (2, 3), left palp (4, 5), ®xed during copulation (4), sucked out by female (5). Hairs in (3, 5) omitted. Scale lines: 0.1 mm.
Figure 5 in REVIEW Phoretic copulation in Aculeata (Insecta: Hymenoptera): a review
Figure 5. Mating positions in Thynnidae: A, 'C' position in Australian species; B, 'S' position in South American species.
Figure 2 in REVIEW Phoretic copulation in Aculeata (Insecta: Hymenoptera): a review
Figure 2. Phylogeny of Aculeata showing the families where phoretic copulation has been reported (modified from: Peters et al., 2017).
Genital morphology and the mechanics of copulation in the millipede genus Pseudopolydesmus (Diplopoda: Polydesmida: Polydesmidae)
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Data from: An experimental test for body size-dependent effects of male harassment and an elevated copulation rate on female fecundity and offspring performance
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Data from: Eversion and withdrawal of an intromittent organ before sexual maturation prepares male beetles for copulation
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Data from: How the length of genital parts affects copulation performance in a carabid beetle: implications for correlated genital evolution between the sexes
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Data from: Polyandry and polygyny in a social rodent: an integrative perspective based on social organization, copulations, and genetics
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International Brain Laboratory public data
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OpenNeuro
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