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Journal articles on the topic 'Interspecific sexual behavior'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Kuitunen, Katja, Janne S. Kotiaho, Mari Luojumäki, and Jukka Suhonen. "Selection on size and secondary sexual characters of the damselfly Calopteryx splendens when sympatric with the congener Calopteryx virgo." Canadian Journal of Zoology 89, no. 1 (2011): 1–9. http://dx.doi.org/10.1139/z10-090.

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Male mating success is often determined by body size or secondary sexual characters because of female mate choice or competition for females. In addition to intraspecific interactions, interspecific interactions may interfere with intraspecific selection. In this study, we investigated sexual selection on size and sexual characters of male banded demoiselle ( Calopteryx splendens (Harris, 1780)) in wild populations sympatric with the beautiful demoiselle ( Calopteryx virgo (L., 1758)). As secondary sexual characters, male C. splendens have pigmented wing spots whose size appears to be under po

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2

Cassini, Marcelo H. "Sexual size dimorphism and sexual selection in artiodactyls." Behavioral Ecology 31, no. 3 (2020): 792–97. http://dx.doi.org/10.1093/beheco/araa017.

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Abstract Sexual size dimorphism is biased toward males in most mammalian species. The most common explanation is precopulatory intramale sexual selection. Large males win fights and mate more frequently. In artiodactyls, previous tests of this hypothesis consisted of interspecific correlations of sexual dimorphism with group size as a surrogate for the intensity of sexual selection (Is). However, group size is not a proper measure of sexual selection for several reasons as is largely recognized in other mammalian taxa. I conducted an interspecific test on the role of sexual selection in the ev

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3

Takakura, Koh-Ichi, Takayoshi Nishida, and Keisuke Iwao. "Conflicting intersexual mate choices maintain interspecific sexual interactions." Population Ecology 57, no. 2 (2015): 261–71. http://dx.doi.org/10.1007/s10144-015-0492-3.

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4

Calvez, Lény, Alexis Dereeper, Aude Perdereau, et al. "Meiotic Behaviors of Allotetraploid Citrus Drive the Interspecific Recombination Landscape, the Genetic Structures, and Traits Inheritance in Tetrazyg Progenies Aiming to Select New Rootstocks." Plants 12, no. 8 (2023): 1630. http://dx.doi.org/10.3390/plants12081630.

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Sexual breeding at the tetraploid level is a promising strategy for rootstock breeding in citrus. Due to the interspecific origin of most of the conventional diploid citrus rootstocks that produced the tetraploid germplasm, the optimization of this strategy requires better knowledge of the meiotic behavior of the tetraploid parents. This work used Genotyping By Sequencing (GBS) data from 103 tetraploid hybrids to study the meiotic behavior and generate a high-density recombination landscape for their tetraploid intergenic Swingle citrumelo and interspecific Volkamer lemon progenitors. A geneti

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5

Bolger, Douglas T., and Ted J. Case. "Intra- and interspecific interference behaviour among sexual and asexual geckos." Animal Behaviour 44, no. 1 (1992): 21–30. http://dx.doi.org/10.1016/s0003-3472(05)80750-x.

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6

Tynkkynen, Katja, Janne S. Kotiaho, Mari Luojumäki, and Jukka Suhonen. "INTERSPECIFIC AGGRESSION CAUSES NEGATIVE SELECTION ON SEXUAL CHARACTERS." Evolution 59, no. 8 (2005): 1838–43. http://dx.doi.org/10.1111/j.0014-3820.2005.tb01830.x.

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7

Tynkkynen, Katja, Janne S. Kotiaho, Mari Luojumäki, and Jukka Suhonen. "INTERSPECIFIC AGGRESSION CAUSES NEGATIVE SELECTION ON SEXUAL CHARACTERS." Evolution 59, no. 8 (2005): 1838. http://dx.doi.org/10.1554/04-716.1.

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8

Miller, Edward H., Alberto Ponce de Leon, and Robert L. Delong. "VIOLENT INTERSPECIFIC SEXUAL BEHAVIOR BY MALE SEA LIONS (OTARIIDAE): EVOLUTIONARY AND PHYLOGENETIC IMPLICATIONS." Marine Mammal Science 12, no. 3 (1996): 468–76. http://dx.doi.org/10.1111/j.1748-7692.1996.tb00601.x.

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9

Cobb, Matthew, Barrie Burnet, and Kevin Connolly. "Sexual isolation and courtship behavior inDrosophila simulans, D. mauritiana, and their interspecific hybrids." Behavior Genetics 18, no. 2 (1988): 211–25. http://dx.doi.org/10.1007/bf01067843.

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10

Spaak, Piet. "Sexual reproduction in Daphnia: interspecific differences in a hybrid species complex." Oecologia 104, no. 4 (1995): 501–7. http://dx.doi.org/10.1007/bf00341348.

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11

Iwaniuk, Andrew N. "Interspecific variation in sexual dimorphism in brain size in Nearctic ground squirrels (Spermophilus spp.)." Canadian Journal of Zoology 79, no. 5 (2001): 759–65. http://dx.doi.org/10.1139/z01-037.

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A possible relationship between sexual dimorphism in brain size and mating system was investigated in five ground squirrel species: Spermophilus lateralis, S. tridecemlineatus, S. richardsonii, S. columbianus, and S. parryii. Relative brain size was measured by determining the endocranial volume of 247 ground squirrel skulls and regressing these values against two measurements of body size: mass and length. Analyses of covariation in the brain size / body size relationship within the five species revealed that sexual brain-size dimorphism occurs in three of the five species: S. lateralis, S. r

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12

Hawlitschek, Oliver, Nikita Sevastianov, Jan-Henrik Pamin, and Martin Husemann. "Observation of a cross-subfamily male-male mating attempt of grasshoppers in Kazakhstan (Orthoptera, Acrididae)." Alpine Entomology 9 (May 28, 2025): 1–3. https://doi.org/10.3897/alpento.9.151006.

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Same-sex and interspecific sexual behavior have been documented in arthropods, but records remain very scarce. We report a mating attempt of a male <i>Dociostaurus kraussi</i> (Ingenitzky, 1897) (Gomphocerinae) and a male of <i>Oedaleus decorus</i> (Germar, 1825) (Oedipodinae), both grasshoppers (Orthoptera: Acrididae), from the region of the Dzungarian Alatau Mountains in Kazakhstan. A Disc3D scan showed that the cerci of the <i>D. kraussi</i> male clearly connect to the external genitalia of the <i>O. decorus</i> male, but we could not ascertain if the genitalia were inserted or if any sperm

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13

Cobb, M., B. Burnet, and K. Connolly. "Sexual Isolation and Courtship Behavior in Drosophila simulans, D. mauritiana, and Their Interspecific Hybrids." Behavior Genetics 18 (June 5, 1988): 211–25. https://doi.org/10.5281/zenodo.10739897.

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14

Vergara, Aldair, Yara Maquitico, and Carlos Cordero. "Interspecific Courtship Between Two Endemic Fireflies." Diversity 17, no. 3 (2025): 188. https://doi.org/10.3390/d17030188.

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Reproductive interactions between species could have negative effects on the fitness of the species involved, which can have important ecological and evolutionary consequences, such as population declines (including local extinction) or character divergence. Here, we report the courtship and attempted mating between two congeneric species of fireflies endemic to Mexico. The interactions involved males of the synchronous firefly Photinus palaciosi and females of the much larger, non-synchronous P. extensus. In the study site, the population density of P. palaciosi is much higher than that of P.

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15

Pereira, G. S., R. L. Sousa, R. L. Araújo, L. V. Hoffmann, E. F. Silva, and P. A. V. Barroso. "Selective fertilization in interspecific crosses of allotetraploid species of Gossypium." Botany 90, no. 3 (2012): 159–66. http://dx.doi.org/10.1139/b11-094.

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The genus Gossypium is composed of both diploid and allotetraploid species. The five allotetraploid species of Gossypium are sexually compatible, and only partial sexual barriers have been described. Natural hybrids among them do not occur or occur in situ with very low frequency in Brazil in the rare places where cultivated upland cotton ( Gossypium hirsutum L.) occurs in a sympatric range with Gossypium barbadense L. or Gossypium mustelinum Miers. We evaluated the presence of pollen competition as a prezygotic barrier in crosses between upland cotton and G. barbadense and G. mustelinum. We f

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16

Guay, P. J., and A. N. Iwaniuk. "Interspecific variation in relative brain size is not correlated with intensity of sexual selection in waterfowl (Anseriformes)." Australian Journal of Zoology 56, no. 5 (2008): 311. http://dx.doi.org/10.1071/zo08082.

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The role of sexual selection in shaping the brain is poorly understood. Although numerous studies have investigated the role of natural selection, relatively few have focussed on the role of sexual selection. Two important factors influencing the intensity of sexual selection are sperm competition and pair bonding and three different hypotheses have been proposed to explain how they could influence relative brain size. (1) The ‘extra-pair mating’ hypothesis predicts that sexual dimorphism in brain size will increase with sperm competition intensity. (2) The ‘Machiavellian intelligence’ hypothe

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17

Tynkkynen, Katja, Janne S. Kotiaho, Mari Luojumäki, and Jukka Suhonen. "Interspecific territoriality in Calopteryx damselflies: the role of secondary sexual characters." Animal Behaviour 71, no. 2 (2006): 299–306. http://dx.doi.org/10.1016/j.anbehav.2005.03.042.

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18

Punzalan, David, and Locke Rowe. "Concordance between stabilizing sexual selection, intraspecific variation, and interspecific divergence inPhymata." Ecology and Evolution 6, no. 22 (2016): 7997–8009. http://dx.doi.org/10.1002/ece3.2537.

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19

Adams, Dean C., Elizabeth Glynne, and Antigoni Kaliontzopoulou. "Interspecific allometry for sexual shape dimorphism: Macroevolution of multivariate sexual phenotypes with application to Rensch's rule." Evolution 74, no. 9 (2020): 1908–22. http://dx.doi.org/10.1111/evo.14049.

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20

Felismino, Mariana Ferrari, Maria Suely Pagliarini, and Cacilda Borges do Valle. "Meiotic behavior of interspecific hybrids between artificially tetraploidized sexual Brachiaria ruziziensis and tetraploid apomictic B. brizantha (Poaceae)." Scientia Agricola 67, no. 2 (2010): 191–97. http://dx.doi.org/10.1590/s0103-90162010000200010.

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The meiotic behavior of four interspecific promising hybrids was evaluated by conventional cytological methods. The female genitors were two artificially tetraploidized sexual accessions of B. ruziziensis (R41 and R44, 2n = 4χ = 36), which were crossed to an agronomically superior natural tetraploid apomictic genotype of B. brizantha (B140 - BRA003395). Three of them (HBGC313, HBGC 315, and HBGC324) were sexual and one (HBGC325) apomictic. Analyses of some cells in diakinesis revealed multivalent chromosome configurations, suggesting that genetic recombination and introgression of some genes c

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21

Moran, Peter A., John Hunt, Christopher Mitchell, Michael G. Ritchie, and Nathan W. Bailey. "Sexual selection and population divergence III: Interspecific and intraspecific variation in mating signals." Journal of Evolutionary Biology 33, no. 7 (2020): 990–1005. http://dx.doi.org/10.1111/jeb.13631.

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22

Dangerfield, J. M., and S. R. Telford. "Population size structure and sex ratios in some woodlice (Crustacea: Oniscidae) from southern Africa." Journal of Tropical Ecology 10, no. 2 (1994): 261–71. http://dx.doi.org/10.1017/s0266467400007902.

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ABSTRACTThe population size structure and adult sex ratio were recorded for four indigenous and one introduced species of terrestrial isopod from southern Africa. Interspecific variation was considerable with either discrete or continuous distributions indicative of the production of separate cohorts or continuous recruitment. Intraspecific variation was also considerable particularly in species such as Aphiloscia vilis which can be found in diverse habitats. Sex ratios were consistently female biased, a result consistent with observations made on temperate species. These observations, and a c

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23

McDonald, Grant C., Andy Gardner, and Tommaso Pizzari. "Sexual selection in complex communities: Integrating interspecific reproductive interference in structured populations." Evolution 73, no. 5 (2019): 1025–36. http://dx.doi.org/10.1111/evo.13726.

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24

Bókony, Veronika, and András Liker. "Melanin-Based Black Plumage Coloration is Related to Reproductive Investment in Cardueline Finches." Condor 107, no. 4 (2005): 775–87. http://dx.doi.org/10.1093/condor/107.4.775.

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Abstract Avian color ornaments produced by different mechanisms (i.e., melanin, carotenoid, and structural colors) can communicate different sets of information due to differences in their condition or developmental constraints. Although this suggests that different color signals should be analyzed separately, few comparative studies have focused on specific types of coloration. In cardueline finches, interspecific variation in overall plumage brightness (which integrates all types of coloration) was previously shown to be affected by sexual selection and to covary with fecundity and parental

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25

ESTRADA, C., and C. D. JIGGINS. "Interspecific sexual attraction because of convergence in warning colouration: is there a conflict between natural and sexual selection in mimetic species?" Journal of Evolutionary Biology 21, no. 3 (2008): 749–60. http://dx.doi.org/10.1111/j.1420-9101.2008.01517.x.

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26

Tarnawski, B. A., G. H. Cassini, and D. A. Flores. "Skull allometry and sexual dimorphism in the ontogeny of the southern elephant seal (Mirounga leonina)." Canadian Journal of Zoology 92, no. 1 (2014): 19–31. http://dx.doi.org/10.1139/cjz-2013-0106.

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The southern elephant seal (Mirounga leonina (L., 1758)) is one of the most dimorphic mammals, but sexual dimorphism in its skull ontogeny is poorly known. We study ontogeny of sexual dimorphism by the allometric relationships between 21 measurements and its geometric mean. Based on 66 specimens (36 females, 30 males), the bivariate and multivariate analyses indicated that both approaches were congruent in most variables. We detected that sexual dimorphism was reached mostly by sexual shape differences in the ontogenetic trajectories of males and females. Twenty-four percent of variables were

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27

Hawlitschek, Oliver, Nikita Sevastianov, Jan-Henrik Pamin, and Martin Husemann. "Observation of a cross-subfamily male-male mating attempt of grasshoppers in Kazakhstan (Orthoptera, Acrididae)." Alpine Entomology 9 (May 28, 2025): 1–3. https://doi.org/10.3897/alpento.9.151006.

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Same-sex and interspecific sexual behavior have been documented in arthropods, but records remain very scarce. We report a mating attempt of a male Dociostaurus kraussi (Ingenitzky, 1897) (Gomphocerinae) and a male of Oedaleus decorus (Germar, 1825) (Oedipodinae), both grasshoppers (Orthoptera: Acrididae), from the region of the Dzungarian Alatau Mountains in Kazakhstan. A Disc3D scan showed that the cerci of the D. kraussi male clearly connect to the external genitalia of the O. decorus male, but we could not ascertain if the genitalia were inserted or if any sperm was transferred. We conside

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28

Nomura, Shota, Tomochika Fujisawa, and Teiji Sota. "Role of Sex-Concordant Gene Expression in the Coevolution of Exaggerated Male and Female Genitalia in a Beetle Group." Molecular Biology and Evolution 38, no. 9 (2021): 3593–605. http://dx.doi.org/10.1093/molbev/msab122.

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Abstract Some sexual traits, including genitalia, have undergone coevolutionary diversification toward exaggerated states in both sexes among closely related species, but the underlying genetic mechanisms that allow correlated character evolution between the sexes are poorly understood. Here, we studied interspecific differences in gene expression timing profiles involved in the correlated evolution of corresponding male and female genital parts in three species of ground beetle in Carabus (Ohomopterus). The male and female genital parts maintain morphological matching, whereas large interspec

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29

Ruiz-Monachesi, M. R., A. Paz, and M. Quipildor. "Hemipenes eversion behavior: a new form of communication in two Liolaemus lizards (Iguania: Liolaemidae)." Canadian Journal of Zoology 97, no. 3 (2019): 187–94. http://dx.doi.org/10.1139/cjz-2018-0195.

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Males of several animals have intromittent organs and may use these in a communicative context during sexual or intrasexual interactions. In some lizards, hemipenes eversion behavior have been observed, and the aim of this study is to find out whether this behavior is functionally significant under a communicative approach. Here, we investigated the eversion of hemipenes in the Light Blue Lizard (Liolaemus coeruleus Cei and Ortiz-Zapata, 1983) and in the Valley Lizard (Liolaemus quilmes Etheridge, 1993) by filming the response of male focal lizards in different experimental settings: (i) an ag

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30

Laiolo, P., J. C. Illera, and J. R. Obeso. "Local climate determines intra- and interspecific variation in sexual size dimorphism in mountain grasshopper communities." Journal of Evolutionary Biology 26, no. 10 (2013): 2171–83. http://dx.doi.org/10.1111/jeb.12213.

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31

Howes, Briar J., and Stephen C. Lougheed. "Male body size varies with latitude in a temperate lizard." Canadian Journal of Zoology 85, no. 5 (2007): 626–33. http://dx.doi.org/10.1139/z07-043.

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To examine the evolution of sexual size dimorphism (SSD), interspecific studies are often performed to generate hypotheses for the origin and maintenance of SSD. Although these methods are invaluable to our understanding of the evolution of SSD, they often quantify SSD for a species based on few populations. We found a significant sex-specific latitudinal cline in Plestiodon fasciatus (L., 1758) (= Eumeces fasciatus (L., 1758)), a species that was previously considered to be monomorphic for body size. Male body size significantly increased with increasing latitude, whereas female body size was

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32

Sánchez-Vilas, J., A. Turner, and J. R. Pannell. "Sexual dimorphism in intra- and interspecific competitive ability of the dioecious herb Mercurialis annua." Plant Biology 13, no. 1 (2010): 218–22. http://dx.doi.org/10.1111/j.1438-8677.2010.00408.x.

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33

Nishida, Takayoshi. "Index of the intensity of sexual selection for interspecific comparison: A reply to Kasuya." Researches on Population Ecology 35, no. 2 (1993): 257–59. http://dx.doi.org/10.1007/bf02513598.

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34

Chevre, A. M., F. Eber, E. Margale, et al. "Comparison of somatic and sexual Brassica napus – Sinapis alba hybrids and their progeny by cytogenetic studies and molecular characterization." Genome 37, no. 3 (1994): 367–74. http://dx.doi.org/10.1139/g94-052.

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Reciprocal crosses were performed between Brassica napus (AACC, 2n = 38) cv. Brutor and Sinapis alba (SalSal, 2n = 24) cv. Carine. Using fertilized ovary culture, 2.2 and 1.9% of interspecific hybrids were produced when white mustard was the female and the male parent, respectively. On S. alba cytoplasm, three plants with a BC1-like structure (SalSalAC, 2n = 43) were obtained and ACSal (2n = 31) and AACCSal (2n = 50) hybrids on reciprocal crosses. At the same ploidy level, no differences in meiotic behavior were observed. The amphidiploids (AACCSalSal, 2n = 62), produced after colchicine treat

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35

Hedrick, Brandon P. "Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species." PeerJ 9 (July 12, 2021): e11777. http://dx.doi.org/10.7717/peerj.11777.

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Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on crania from eleven species from the Artibeus species

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36

Hedrick, Brandon P. "Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species." PeerJ 9 (June 12, 2021): e11777. https://doi.org/10.5281/zenodo.13484366.

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(Uploaded by Plazi for the Bat Literature Project) Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on cr

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37

Hedrick, Brandon P. "Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species." PeerJ 9 (June 7, 2021): e11777. https://doi.org/10.5281/zenodo.13484366.

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(Uploaded by Plazi for the Bat Literature Project) Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on cr

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38

Hedrick, Brandon P. "Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species." PeerJ 9 (July 3, 2021): e11777. https://doi.org/10.5281/zenodo.13484366.

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(Uploaded by Plazi for the Bat Literature Project) Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on cr

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39

Hedrick, Brandon P. "Inter- and intraspecific variation in the Artibeus species complex demonstrates size and shape partitioning among species." PeerJ 9 (July 10, 2021): e11777. https://doi.org/10.5281/zenodo.13484366.

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(Uploaded by Plazi for the Bat Literature Project) Neotropical leaf-nosed bats (family Phyllostomidae) are one of the most diverse mammalian families and Artibeus spp. is one of the most speciose phyllostomid genera. In spite of their species diversity, previous work on Artibeus crania using linear morphometrics has uncovered limited interspecific variation. This dearth of shape variation suggests that differences in cranial morphology are not contributing to niche partitioning across species, many of which are often found in sympatry. Using two-dimensional geometric morphometric methods on cr

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40

Husak, Jerry F., and Simon P. Lailvaux. "An evolutionary perspective on conflict and compensation in physiological and functional traits." Current Zoology 60, no. 6 (2014): 755–67. http://dx.doi.org/10.1093/czoolo/60.6.755.

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Abstract Physiological and functional traits, especially those related to behavior and whole-organism performance capacities, are subject to a variety of both parallel and opposing natural and sexual selection pressures. These selection pressures show considerable interspecific variation, shaping contemporary behavioral and functional diversity, but the form and intensity of selection on physiological and functional traits can also vary intraspecifically. The same suites of traits can experience quite different selection pressures, depending on the sex or age of a given individual, as well as

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41

Sánchez-Chardi, Alejandro, Marian García-Pando, Eudald Pujol-Buxó, Maria A. Sans-Fuentes, María José López-Fuster, and Francesc Muñoz-Muñoz. "Insularity induces changes on body and mandible morphology in a Mediterranean population of the greater white-toothed shrew Crocidura russula (Hermann, 1780)." Contributions to Zoology 87, no. 4 (2018): 275–86. http://dx.doi.org/10.1163/18759866-08704004.

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Island populations of terrestrial mammals often undergo extensive behavioural and morphological changes when separated from mainland populations. Within small mammals these changes have been mainly reported in rodents but were poorly assessed in soricomorphs. In this study we compared mandible morphology and body condition between mainland and island populations of the greater white-toothed shrew, Crocidura russula. The results indicated that island specimens were bigger and heavier than the mainland counterpart, and they showed changes in mandible shape that were associated with higher mechan

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42

Costa, Fernando G., and Gabriel Francescoli. "Analyse expérimentale de l'isolement reproductif entre deux espèces jumelles et sympatriques d'araignées : le Lycosa thorelli (Keyserling) et le Lycosa carbonelli Costa et Capocasale." Canadian Journal of Zoology 69, no. 7 (1991): 1768–76. http://dx.doi.org/10.1139/z91-246.

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Four experimental groups were used: (A) males Lycosa thorelli × female L. thorelli; (B) male Lycosa carbonelli × female L. carbonelli; (C) Male L. thorelli × female L. carbonelli; (D) male L. carbonelli × female L. thorelli. Males were placed in a field with conspecific sexual pheromone and confronted to anesthetized virgin females. Male L. thorelli showed a greater tenacity than male L. carbonelli in the maintenance of the copulatory position. The typical copulation pattern (intraspecific groups) became atypical in interspecific groups. Only one typical interspecific copulation was observed i

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43

Trallero, L., M. Farré, R. A. Phillips, and J. Navarro. "Geometric morphometrics reveal interspecific and sexual differences in bill morphology in four sympatric planktivorous petrels." Journal of Zoology 307, no. 3 (2018): 167–77. http://dx.doi.org/10.1111/jzo.12631.

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44

Monamy, V. "Sexual Differences in Habitat Use by Rattus lutreolus (Rodentia: Muridae): The Emergence of Patterns in Native Rodent Community Structure." Australian Mammalogy 20, no. 1 (1998): 43. http://dx.doi.org/10.1071/am97043.

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The successful long-term conservation of Australian fauna relies on a clear understanding of how coexisting species partition limited resources. Such partitioning results in complex levels of habitat selection, dependent on dynamic interactions between biotic and abiotic processes. In small mammal communities where native Rattus spp. are present and there are substantial interspecific competitive effects, habitat selection by female Rattus may drive habitat use by other rodent species (particularly native mice). This has been demonstrated in Tasmania where the velvet-furred rat, R. lutreolus v

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Do, Min Seock, June Kim, and Jin Hwan Choi. "Sexual Dimorphism of the Three Pit Viper Species (<i>Gloydius brevicaudus</i>, <i>G. ussuriensis</i>, <i>G. intermedius</i>) in South Korea." Russian Journal of Herpetology 31, no. 3 (2024): 127–238. http://dx.doi.org/10.30906/1026-2296-2024-31-3-127-238.

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Sexual size dimorphism in snakes is closely related to mating behavior and fecundity selection. It provides important information on animal morphology and evolutionary ecology because it allows us to identify key morphological and functional traits between sexes and infer intraspecific competition. In this study, we measured the morphological characters of 147 individuals of three pit viper species stored in the archive of the National Institute of Biological Resources of the Ministry of Environment and confirmed interspecific differences and sexual size dimorphism of each species. We also ide

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Do, Min Seock, June Kim, and Jin Hwan Choi. "Sexual Dimorphism of the Three Pit Viper Species (<i>Gloydius brevicaudus</i>, <i>G. ussuriensis</i>, <i>G. intermedius</i>) in South Korea." Russian Journal of Herpetology 31, no. 3 (2024): 127–38. http://dx.doi.org/10.30906/1026-2296-2024-31-3-127-138.

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Abstract:

Sexual size dimorphism in snakes is closely related to mating behavior and fecundity selection. It provides important information on animal morphology and evolutionary ecology because it allows us to identify key morphological and functional traits between sexes and infer intraspecific competition. In this study, we measured the morphological characters of 147 individuals of three pit viper species stored in the archive of the National Institute of Biological Resources of the Ministry of Environment and confirmed interspecific differences and sexual size dimorphism of each species. We also ide

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Singh, Roshni, and Bashisth N. Singh. "Intra- and interspecific sexual isolation in two sibling species of Drosophila: D. ananassae and D. pallidosa." Ethology Ecology & Evolution 32, no. 6 (2020): 572–89. http://dx.doi.org/10.1080/03949370.2020.1777210.

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Dupuis, Julian R., Kevin A. Judge, Bryan M. T. Brunet, Shawna Ohlmann Chan, and Felix A. H. Sperling. "Does hunger lead to hybridization in a genus of sexually cannibalistic insects (Orthoptera: Prophalangopsidae)?" Biological Journal of the Linnean Society 131, no. 2 (2020): 434–48. http://dx.doi.org/10.1093/biolinnean/blaa094.

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Abstract Allochronic isolation can be a strong mechanism for reproductive isolation and speciation. However, imperfect allochrony and the expression of phenological plasticity can erode temporal barriers to gene flow and result in hybridization between divergent lineages. Here, we combine behavioural ecology and genomics to investigate this scenario in two closely related species of grigs in the genus Cyphoderris. These species exhibit a unique mating system whereby females feed on the fleshy hind wings of the male during copulation, and copulation with conspecific males is more likely in food

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Nakajima, K. "A morphometric study of the skulls of two species of wombats (Vombatus ursinus and Lasiorhinus latifrons)." Australian Mammalogy 17, no. 1 (1994): 65. http://dx.doi.org/10.1071/am94007.

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The skulls of the wombats, Lasiorhinus latifrons and Vombatus ursinus, were measured in order to compare the craniofacial morphology, including sexual dimorphism, in these two species. The skulls of V. ursinus tend to be bigger than that of L. latifrons. In both species measurements of males are greater than those of females. The difference between maxillary and mandibular inter-molar breadth was greater, and the skull length/zygomatic arch breadth ratio was smaller, in V. ursinus than in L. latifrons. It is proposed that the masseter muscles of V. ursinus are better developed than those of L.

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Paine, Michael D. "Developmental allometry in three species of darters (Percidae: Etheostoma)." Canadian Journal of Zoology 64, no. 2 (1986): 347–52. http://dx.doi.org/10.1139/z86-055.

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Ontogenetic changes in body form of three Etheostoma species were compared among species within life history periods and among periods within species. Slopes of allometric equations were similar across species, but differed among periods. The overall similarity of early ontogenetic changes, including shifts at period thresholds, suggested common, perhaps ancestral, developmental restrictions. Differences in elevations of allometric equations among species within periods may be more relevant ecologically. Interspecific differences among adults were not evident among juveniles; the three species

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