Zoological Studies最新文献

{"title":"The Complete Mitogenome of <i>Xeruca formosensis</i> (Rathbun, 1921) (Crustacea: Brachyura: Ocypodidae), a Fiddler Crab Endemic to Taiwan, with its Phylogenetic Position in the Family.","authors":"Min-Yun Liu, Hsi-Te Shih","doi":"10.6620/ZS.2022.61-69","DOIUrl":"10.6620/ZS.2022.61-69","url":null,"abstract":"<p><p><i>Xeruca formosensis</i> is a species and genus of fiddler crab endemic to Taiwan, with limited distribution in western Taiwan and the offshore Penghu Islands. This study reports the complete mitochondrial genome (mitogenome) of this species using next-generation sequencing. The mitogenome contains 15,684 bp, comprising 13 protein-coding genes, 22 tRNAs, 2 ribosomal RNAs and a 750-bp intergenic space (control region). The nucleotide composition is biased toward A+T (69.4%). A phylogenetic analysis based on the concatenated protein-coding genes showed that the genera <i>Xeruca</i> Shih, 2015 and <i>Tubuca</i> Bott, 1973 are sister to each other. In addition, the phylogeny of the 16 available mitogenomes in the family Ocypodidae also supports the current systematics of this family based on one nuclear and two mitochondrial markers. As this species inhabits high intertidal mudflats with high temperature and high salinity, mitogenome analyses may help us understand the mechanisms of adaptation to extreme environments, as well as the connectivity of metapopulations based on mitogenomes from different populations.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":"61 ","pages":"e69"},"PeriodicalIF":1.5,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9755983/pdf/zoolstud-61-069.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10496094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Record of the Genus <i>Pseudohelice</i> Sakai, Türkay & Yang, 2006 from India and Description of a New Pseudocryptic Species (Crustacea: Brachyura: Varunidae).","authors":"Mani Prema, Jhih-Wei Hsu, Hsi-Te Shih, Samuthirapandian Ravichandran","doi":"10.6620/ZS.2022.61-56","DOIUrl":"10.6620/ZS.2022.61-56","url":null,"abstract":"<p><p>A new pseudocryptic species of the varunid crab genus <i>Pseudohelice</i> Sakai, Türkay & Yang, 2006, is described from India based on morphological and molecular evidence. The new species was collected from higher intertidal zones in the Vellar River estuary, Tamil Nadu, southeastern India, in a habitat composed of muddy and sandy sediment. <i>Pseudohelice annamalai</i> n. sp. is similar to <i>P. subquadrata</i> (Dana, 1851) and <i>P. latreillii</i> (H. Milne Edwards, 1837) in general form, but can be distinguished from the congeners by the characters of the infraorbital ridges, male first gonopod, and female vulvae. In addition, the mitochondrial cytochrome oxidase subunit I sequences also support the new species. The occurrence of <i>Pseudohelice</i> from India links the distribution gap between the western Indian Ocean and western Pacific Ocean. The new species provides additional evidence for the geographic isolation of the eastern Indian Ocean for some marine organisms.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":"61 ","pages":"e56"},"PeriodicalIF":1.5,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9755986/pdf/zoolstud-61-056.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10496095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abundance Trends and Nesting Biology of Green Turtles <i>Chelonia mydas</i> (Testudines: Cheloniidae) During Ten Consecutive Breeding Seasons (2012-2021) at Akyatan Beach, Turkey.","authors":"Can Yılmaz, Ayşe Oruç, Oguz Turkozan","doi":"10.6620/ZS.2022.61-53","DOIUrl":"10.6620/ZS.2022.61-53","url":null,"abstract":"<p><p>Data obtained from long-term survey studies are valuable for assessing the population status and trends in critical populations of threatened species, like sea turtles. Akyatan Beach is one of the most important green turtle nesting beaches in the Mediterranean and has been monitored since 2006 without interruption. The beach is 22 km long and more than 100 m wide at some points, and both loggerhead and green turtles nest on the beach. However, loggerhead nesting is very limited compared to green turtles. A total of 3866 <i>C. mydas</i> nests were recorded over ten consecutive years at Akyatan Beach, with a mean of 387 ± 127 nests (range = 201-559). The average nesting density was 17.6 nests km^-1 (range = 9.1-25.4 nests km^-1). In the 3309 nests, a total of 355,259 eggs were counted. The overall mean clutch size was 112 ± 26.10 eggs. Of these eggs, 50.80% hatched (depredated nests included), and 78.07% of them were able to reach the sea. The overall mean hatching success was 73.07 ± 26.20%. The overall mean incubation duration was 51.4 ± 3.5 days. The clutch sizes and hatching success differed between years, and there was a significant decreasing trend in mean incubation duration over the ten years of the study. A total of 1585 green turtle nests (41.02% of nests) were totally or partially depredated by golden jackals and wild boars, while other predators depredated 20.5% of hatchlings. The nesting data obtained since 2006 showed strong annual fluctuations ranging from 170 (in 2007) to 562 (in 2006) with a slightly increasing but statistically insignificant trend (<i>r</i> = 0.94, <i>p</i> > 0.05). The main threats to the population were depredation by jackals and wild boars.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":"61 ","pages":"e53"},"PeriodicalIF":1.5,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9755981/pdf/zoolstud-61-053.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10436363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Descriptive Morphology of Male and Female Genitalia of the Long-horned Grasshopper in the Tribe Aphractini (Orthoptera: Tettigoniidae), with a Key to the Genera.","authors":"Alejandro Vera,&nbsp;Paula Prelo","doi":"10.6620/ZS.2022.61-37","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-37","url":null,"abstract":"<p><p>The male and female genital morphologies of the tribe Aphractini are presented in this study. Four species are included: <i>Aphractus acuminatus</i>, <i>Paraphractus abbreviatus</i>, <i>Polycleptidella chilensis</i> and <i>Polycleptis scutellifera</i>. A dichotomous key to the genera is provided. The lengths between the female spermathecal duct and titillatory articulated processes are similar within species but differ between them. Therefore, we propose that the function of these organs could be associated with the sperm removal strategy.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e37"},"PeriodicalIF":1.6,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579953/pdf/zoolstud-61-037.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40679845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogenetic Relationships and Taxonomic Position of the Ribbon Worms of the Genus <i>Parahubrechtia</i> (Nemertea, Palaeonemertea) with Descriptions of Two New Species.","authors":"Alexei V Chernyshev,&nbsp;Neonila E Polyakova,&nbsp;Shi-Chun Sun","doi":"10.6620/ZS.2022.61-38","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-38","url":null,"abstract":"<p><p>The genus <i>Parahubrechtia</i> Gibson and Sundberg, 1999 was first described within the family Hubrechtiidae (class Pilidiophora) and subsequently transferred to the family Callineridae (class Palaeonemertea). Here we describe two new species, <i>Parahubrechtia rayi</i> sp. nov. from the Sea of Japan (Russia) and <i>P. peri</i> sp. nov. from the South China Sea (China). A phylogenetic analysis based on partial sequences of five nuclear and mitochondrial gene regions, <i>18S</i> rRNA, <i>28S</i> rRNA, histone H3, <i>16S</i> rRNA, and <i>COI</i>, has confirmed the monophyly of the genus <i>Parahubrechtia</i>, and indicated a close relationship to <i>Callinera</i> Bergendal, 1900, whose monophyly is not confirmed. Both genera belong to the family Tubulanidae, with its junior synonym being Callineridae. Three major subclades are distinguished within the Tubulanidae: subclade <i>Tubulanus</i> s. str., subclade <i>Tubulanus punctatus</i>, and subclade <i>Parahubrechtia</i> + <i>Callinera</i>. The further status of <i>Parahubrechtia</i> depends on whether the paraphyly of <i>Callinera</i> is confirmed or not and how the problem of paraphyly of the genus <i>Tubulanus</i> Renier, 1804 is resolved.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e38"},"PeriodicalIF":1.6,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9588456/pdf/zoolstud-61-038.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40688187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foraging Strategy of Black-faced Spoonbill During Breeding Period in Rice Fields of Korea.","authors":"Sung-Yeon Yoo,&nbsp;Hyung-Kyu Nam,&nbsp;Jong-Kyung Hwang,&nbsp;Jeong-Chil Yoo,&nbsp;In-Ki Kwon","doi":"10.6620/ZS.2022.61-35","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-35","url":null,"abstract":"<p><p>Rice fields are important habitats for a variety of water birds, and their importance is increasing with the destruction of natural wetlands. This study was conducted to understand the foraging strategy of the black-faced spoonbill, an internationally endangered species, in rice fields. To achieve this objective, the feeding success rate of black-faced spoonbills in rice fields was analyzed considering the species' feeding behavior, environmental factors, and external factors. The number of sweeps per minute and number of steps per minute were evaluated as features of feeding behavior; rice field type, water level, and rice height as environmental factors; and the size of a flock and number of other species in the fields when black-faced spoonbills were feeding as external factors. The feeding success rate of the black-faced spoonbills increased as they were feeding while moving at a fast pace in a rice field with a water level of 10 cm or below, rice height of 15 cm, and without herons (competitor species). These factors may be an effective strategy to increase the probability of food acquisition by black-faced spoonbills in rice fields. Therefore, to allow black-faced spoonbills during breeding season to use the rice fields for feeding, it is necessary to maintain a water level of 15 cm or less before transplanting rice. Moreover, the use of pesticides must be minimized to increase abundance of the food resources in rice fields.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e35"},"PeriodicalIF":1.6,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579952/pdf/zoolstud-61-035.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40664985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hidden Diversity in a Narrow Valley: Description of New Endemic Palearctic Rock Lizard <i>Darevskia</i> (Squamata: Lacertidae) Species from Northeastern Turkey.","authors":"Muammer Kurnaz,&nbsp;Mehmet Kürşat Şahin,&nbsp;Ali İhsan Eroğlu","doi":"10.6620/ZS.2022.61-44","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-44","url":null,"abstract":"<p><p><i>Darevskia</i> is a particularly species-rich radiation of Palearctic rock lizards from the Caucasus region. Thanks to intense systematic and taxonomic research, the knowledge of species-level diversity within this genus has increased over the last quarter century. Here, we described a new species, <i>Darevskia salihae</i> sp. nov. from northeastern Turkey. The new taxon is differentiated from other nearby taxon by the low number of dorsal scales in the middle of the body, the shorter body length, and the absence of blue dots both on the lateral region above the forelimbs and on the margin of the ventral plates. In addition to their morphological differences, the new taxon is phylogenetically different from close groups. It is located in a separate subclade from the <i>rudis-valentini-portschinskii</i> subclade. This distinction is supported by both a high bootstrap value (100) and a high posterior probability value (1.00). These two subclades are separated from each other by a genetic distance of almost 4%. This separation is supported not only genetically and morphologically, but also geographically. Since the habitat of the new taxon is limited to a high mountain and a narrow valley, it does not provide an opportunity for a different <i>Darevskia</i> species to shelter because it creates geographical isolation. However, <i>Darevskia parvula</i> that live closest to the habitat of the new taxon live only at the habitat boundaries and do not enter areas where the new taxon is found. Therefore, it might be possible that while it was separated from the <i>rudis-valentini-portschinskii</i> group during the evolutionary transformation, it remained as a refuge and relict in a narrow area as a result of the collapse of the valleys and the partial uplift of the Kaçkar Mountains.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e44"},"PeriodicalIF":1.6,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9588457/pdf/zoolstud-61-044.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40688186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Host-parasite Interactions between a Copepod (<i>Pharodes tortugensis</i>) and Small Reef-associated Gobies (<i>Coryphopterus</i>) in the British Virgin Islands.","authors":"Graham E Forrester,&nbsp;Rachel J Finley","doi":"10.6620/ZS.2022.61-32","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-32","url":null,"abstract":"<p><p>The effects of parasitic copepods on free-living hosts are infrequently documented, and the copepod <i>Pharodes tortugensis</i> has remained virtually unstudied since described. For the first time, we document its host range in the British Virgin Islands (BVI), the prevalence and intensity of infections on wild hosts, and its impacts on host morphology and performance. Infections were observed on four benthic gobies in the BVI (<i>Coryphopterus glaucofraenum</i>, <i>C. venezuelae</i>, <i>C. dicrus</i> and <i>C. eidolon</i>) but not on other host species previously reported from other parts of the western Atlantic. Infected gobies were widespread in the BVI (detected at 33 of 52 sites, prevalence from 1-25%) but extremely rare elsewhere in the Caribbean (detected at 2 of 16 sites, prevalence < 0.006%). As is typical of macroparasite infections, <i>P. tortugensis</i> was over-dispersed in BVI host populations (mean intensity = 4.7, range = 1-17). Infections were most common in juvenile and female hosts, and rarely found in larger male hosts. The copepods attach in the branchial chamber of the goby; female copepods show high attachment fidelity to the ventral surface of the chamber, while male copepods attached most often to the first two gill arches and in the branchial chamber adjacent to the female. Infections caused substantial damage to the host's branchial chamber and gill filaments. Parasitized gobies also had larger livers and smaller gonads than unparasitized individuals of similar length. The changes in organ mass of infected gobies were not sizeable enough to affect total body mass, and host condition (the body-length vs. body-mass relationship) was similar for gobies with and without infections. Parasitized gobies were, however, significantly smaller in body mass at a given age, reflecting slower overall growth. Effects of <i>P. tortugensis</i> on individual hosts were broadly similar to those of other parasitic copepods that infect fish gills and, for unknown reasons, the BVI appears to be a persistent hotspot of infections on these goby hosts.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e32"},"PeriodicalIF":1.6,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9638048/pdf/zoolstud-61-032.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40476983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilisation of Woody Plants by the Cape Porcupine in Mesic Savannas in South Africa.","authors":"Unathi Masiobi Kraai,&nbsp;Zivanai Tsvuura,&nbsp;Tlou Julius Tjelele,&nbsp;Ntuthuko Raphael Mkhize,&nbsp;Manqhai Kraai","doi":"10.6620/ZS.2022.61-40","DOIUrl":"https://doi.org/10.6620/ZS.2022.61-40","url":null,"abstract":"<p><p>Herbivory plays a fundamental role in determining the structure of savannas. The impacts of small and medium-sized mammalian herbivores on trees in savannas remain poorly understood because most research attention focuses on large herbivores such as elephants whose destructive effects on trees can be pervasive at landscape scales. On the other hand, feeding activities of generalist herbivores such as Cape porcupines on woody plants can lead to tree mortality. This study investigated the utilisation of woody plants by the Cape porcupine in three mesic savanna sites in South Africa. We determined the woody plant diet of the porcupine for the early and late dry seasons at Roodeplaat Farm in Gauteng Province, and at Goss Game Farm and Bisley Valley Nature Reserve in KwaZulu-Natal Province. Thirty and twenty randomly located quadrats (30 m × 30 m) were laid at Roodeplaat and Goss, respectively, while 10 smaller quadrats (10 m × 10 m) were laid at Bisley. We measured stem diameter and the length and width of bark scars made by porcupines on stems of woody plants. We collected ten dung samples from each study site in the wet and dry seasons for quantification of woody material in porcupine diet. Porcupine foraging behaviour impacted different tree species at each site: <i>Vachellia robusta</i> at Roodeplaat, <i>Spirostachys africana</i> at Goss and <i>Vachellia nilotica</i> at Bisley. Each of these trees was dominant at each site. More scarring and tree mortality were recorded at Bisley with almost 70% tree sapling mortality occurring on trees that porcupine fed on. The size of bark scars was greater at Goss (<i>P</i> < 0.01) than at Roodeplaat and Bisley, which were similar. The area of bark damage on <i>S. africana</i> trees differed significantly by stem diameter size class (<i>P</i> = 0.007) and was greater for small stems (size class < 7.1 cm) than the larger stems (size classes 7.1-14 cm and 14.1-21). For all the study sites, dung samples revealed that woody material contributed over 80% of the porcupine diet during the dry season, but was lower at 35% during the wet season for Roodeplaat, although it was consistently high for Bisley at 79%. Porcupine foraging activities substantially contributed to tree mortality at each site. We posit that porcupine induced mortality on dominant tree species at each site may contribute to structural heterogeneity in woody plant vegetation in mesic savannas.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":" ","pages":"e40"},"PeriodicalIF":1.6,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579951/pdf/zoolstud-61-040.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40679846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Report of the Tramp ant <i>Technomyrmex vitiensis</i> Mann, 1921 (Formicidae: Dolichoderinae) in Brazil with Cytogenetic and Sperm Structure Data and an Updated Key to Brazilian Dolichoderinae Genera.","authors":"Luísa Antônia Campos Barros, Júlio Cezar Mário Chaul, Gisele Amaro Teixeira, Rodrigo Batista Lod, Jérôme Orivel, Hilton Jeferson Alves Cardoso de Aguiar","doi":"10.6620/ZS.2022.61-29","DOIUrl":"10.6620/ZS.2022.61-29","url":null,"abstract":"<p><p>Invasive ants are usually harmful taxa and are considered a potential problem to biodiversity due to their negative ecological impacts, as they can outcompete native ant species. Ten such species are reported in Brazil. In this study, we report for the first time the Asian tramp ant <i>Technomyrmex vitiensis</i> Mann, 1921 at the municipality of Oiapoque, in the Brazilian Amazon. The colony studied contained workers, intercastes, males and larvae, which provided sperm structure and cytogenetic data. Considering the unprecedented report of the genus <i>Technomyrmex</i> as well as the recent finding of the primarily Australian genus <i>Leptomyrmex</i> in Brazil, we present a revised key for the workers of Brazilian Dolichoderinae genera. <i>Technomyrmex vitiensis</i> presented 2n = 16 chromosomes; all metacentrics and comparative cytogenetics on the genus is provided. A single rDNA 18S site located in intrachromosomal region was observed in this species, which is a common trait in ants. The spermatozoa of <i>T. vitiensis</i> had a filiform shape, with 78.13 (± 1.96) μm of total length and 11.43 (± 0.51) μm of nucleus length. Total and nucleus sperm size length fit with the known variation observed in other ant species. The occurrence of <i>T. vitiensis</i> in Brazil is probably a result of traffic between French Guiana and the Amapá state. Cytogenetics and sperm structures of <i>T. vitiensis</i> enhance the biological knowledge of this tramp species. We highlight the scarce knowledge of ant diversity in the state of Amapá and the consequences that the presence of this species may have in this region.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":"60 ","pages":"e29"},"PeriodicalIF":1.5,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9522628/pdf/zoolstud-61-029.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33542017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}