Zoologica Scripta (Zoolog Scripta )

Publisher: Kungl. Svenska vetenskapsakademien; Norske videnskaps-akademi i Oslo, Blackwell Publishing


An International Journal of Systematic Zoology published for the Norwegian Academy of Science and Letters and the Royal Swedish Academy of SciencesZoologica Scripta provides a unique publishing medium for original research in the fields of taxonomy, systematics, phylogeny and biogeography. Established over 20 years ago, Zoologica Scripta is one of the leading journals for the publication of descriptions of new species and taxonomic revisions.The journal also welcomes contributions dealing with evolutionary aspects of morphology, physiology, ecology, ethology and palaeontology. Backed by an international advisory council, Zoologica Scripta publishes the research of zoologists, marine biologists, systematicists, ecologists and taxonomists from all parts of the world.

Impact factor 2.92

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    Zoologica Scripta website
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    Zoologica scripta (Online)
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  • Document type
    Internet Resource, Journal / Magazine / Newspaper

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Blackwell Publishing

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    • 'Blackwell Publishing' is an imprint of 'Wiley'
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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: This study represents a thorough analysis of Codoma, a monotypic genus endemic to north-western Mexico. A previous morphological analysis of the species concluded that there exists several morphological groups in Codoma ornata, suggesting diversity in Codoma could be underestimated. No studies have examined the genetic diversity in Codoma ornata to test this hypothesis and identify independent lineages. We present a phylogeographic analysis using one mitochondrial and two nuclear genes, and specimens from across nine major drainages in both the Chihuahuan Desert and the Sierra Madre Occidental of western Mexico. All genes and analyses recovered populations of Codoma in a well-supported clade and sister to Tampichthys, and this clade sister to Cyprinella. Analyses of both mitochondrial and nuclear genes indicated Codoma is not monotypic and recover more diversity in the genus than currently recognized. The four (mitochondrial) and five (nuclear) genetically distinct lineages are consistent with those groups outlined in the prior morphological study of the genus. Composition and distribution of these major lineages is also consistent with prior biogeographic hypothesis for other fishes in the region, supporting an ancestral Rio Grande system extending south towards central Mexico. Fragmentation of this paleosystem was followed by allopatric speciation in the Chihuahuan Desert. These results suggest a scenario of long-term isolation in four major regions (upper Conchos, lower Conchos, Nazas, upper Mezquital). Resolution of the diversity and biogeography of these lineages has many implications for various biological disciplines, especially for evolutionary and conservation studies.
    Zoologica Scripta 01/2015; 44:11-28.
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    ABSTRACT: Delimitation of closely related species is often hindered by the lack of discrete diagnostic morphological characters. This is exemplified in bumblebees (genus Bombus). There have been many attempts to clarify bumblebee taxonomy by using alternative features to discrete morphological characters such as wing shape, DNA, or eco-chemical traits. Nevertheless each approach has its own limitations. Recent studies have used a multisource approach to gather different lines of speciation evidence in order to draw a strongly supported taxonomic hypothesis in bumblebees. Yet, the resulting taxonomic status is not independent of selected evidence and of consensus methodology (i.e. unanimous procedure, majority, different weighting of evidence). In this paper, we compare taxonomic conclusions for a group of taxonomically doubtful species (the B. lapidarius-group) obtained from the four commonly used lines of evidence for species delimitation in bumblebees (geometric morphometric of wing shape, genetic differentiation assessment, sequence-based species delimitation methods, and differentiation of cephalic labial gland secretions). We ultimately aim to assess the usefulness of these lines of evidence as components of an integrative decision framework to delimit bumblebee species. Our results show that analyses based on wing shape do not delineate any obvious cluster. In contrast, nuclear/mitochondrial, sequence-based species delimitation methods, and analyses based on cephalic labial gland secretions are congruent with each other. This allows setting up an integrative decision framework to establish strongly supported species and subspecies status within bumblebees.
    Zoologica Scripta 12/2014; accepted.
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    ABSTRACT: The xanthid subfamily Chlorodiellinae is one of the most ubiquitous coral reef crab taxa in the Indo-West Pacific region. Many species are common in coral rubble and rocky shores from Hawaii to eastern Africa, often dominating reef cryptofauna in terms of biomass. Phylogenetic analyses of mitochondrial (COX1, 12S rRNA and 16S rRNA) and nuclear (histone H3) gene sequences of 202 specimens indicate that the Chlorodiellinae is polyphyletic as presently defined. Three genera, Pilodius, Cyclodius and Chlorodiella, and two previously undescribed lineages were recovered as a well-supported clade. In combination with morphological data, the subfamily is redefined and restricted to this clade. Two new genera, Soliella gen. n., and Luniella gen. n., are described based on features of the carapace, male thoracic sternum and male gonopods. The remaining chlorodielline genera and members of the Etisinae, a subfamily with supposedly close morphological affinities to the Chlorodiellinae, were recovered at various positions throughout the xanthid phylogeny, although with relatively low support values. These results reiterate the unresolved status of xanthid subfamilial relationships, but nevertheless provide progress for xanthid systematics.
    Zoologica Scripta 12/2014;
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    ABSTRACT: Entomobryidae, the largest collembolan family, is traditionally classified at suprageneric level using a limited set of morphological structures, such as scales, antennal segmentation. Most tribal and subfamilial delimitations appear, however, disputable in the light of recent works. Integrating molecular and morphological evidence, we propose here a revision of the systematics of the family. In addition to traditional taxonomic characters, tergal specialized chaetae (S-chaetae) are newly introduced, and their patterns are shown to be diversified at all levels from species to subfamilies. S-chaetotaxic pattern on phylogenetic tree shows that evolution of S-chaetae is not parallel between the different terga and that their patterns coincide well with the known molecular phylogeny, providing a powerful tool for the systematics of Entomobryidae. Orchesellinae sensu Soto-Adames et al. (Annals of the Entomological Society of America, 101, 2008, 501); is divided into three subfamilies: Orchesellinae s. s., Bessoniellinae and Heteromurinae, the latter two upgraded from the original tribal level. Entomobryinae sensu Szeptycki (Morpho-Systematic Studies on Collembola. IV. Chaetotaxy of the Entomobryidae and its Phylogenetical Significance, 1979), is no longer divided into scaled and unscaled tribes, and Lepidosira-group is transferred from Seirinae to Entomobryinae. A key to subfamilies and tribes and a comparison with previous classifications of the Entomobryidae are provided. This study greatly improves the understanding of primary and secondary characters and erects the fundamental framework for the taxonomy of Entomobryidae.
    Zoologica Scripta 12/2014;
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    ABSTRACT: Members of the genus Clinostomum Leidy, 1856 are parasites that mature in birds, with occasional reports in humans. Because morphological characters for reliable discrimination of species are lacking, the number of species considered valid has varied by an order of magnitude. In this study, sequences from the DNA barcode region of cytochrome c oxidase I (CO1) and/or internal transcribed spacer (ITS) from specimens from Mexico, Bolivia, Peru, Brazil, Kenya, China and Thailand were analysed together with published sequences from Europe, Africa, Indonesia and North America. Although ITS and CO1 distances among specimens were strongly correlated, distance-based analysis of each marker yielded different groups. Putative species indicated by CO1 distances were consistent with available morphological identifications, while those indicated by ITS conflicted with morphological identifications in three cases. There was little overlap in sequence variation within and between species, particularly for CO1. Although ITS and CO1 distances tended to increase in specimens that were further apart geographically, this did not impair distance-based species delineation. Phylogenetic analysis suggests a deep division between clades of Clinostomum inhabiting the New World and Old World, which parallels the distribution of their principal definitive hosts, the Ardeidae.
    Zoologica Scripta 12/2014;
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    ABSTRACT: The fossil record of storks (Aves, Ciconiidae) includes a relatively large number of specimens from the Middle Eocene onwards, but no taxon is as well represented as Grallavis edwardsi form the Early Miocene of the Allier region in central France. Despite this, the phylogenetic placement of G. edwardsi among other storks has remained elusive not least because of the lack of a robust phylogenetic framework for living storks. To find out how G. edwardsi relates to recent Ciconiidae, we performed a phylogenetic analysis based on osteological features including all living genus-level taxa of the Ciconiidae. We show that the previously reported similarities to the extant taxa Ephippiorhynchus and Jabiru are based on plesiomorphic features, and our analysis supports a sister group relationship between Grallavis edwardsi and Leptoptilos. Our results are also consistent with a basal divergence within Ciconiidae between Mycteria and Anastomus, which are among the smallest storks, and all other storks. A sister group relationship between storks of the genus Ciconia and all large storks (Leptoptilini) is recovered albeit with weak support, which may be due to homoplastic features linked to their large size. Grallavis edwardsi possessed several osteological adaptations suited for scavenging, and despite lacking some derived traits characteristic of Leptoptilos, it is likely to have been a precursor of large marabou and adjutant storks.
    Zoologica Scripta 11/2014; 43(6):576–585.
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    ABSTRACT: The monophyly of Agrotis Ochsenheimer in addition to the relationships among the South American species of the genus and the relationship between Agrotis and Feltia Walker are examined. A cladistic analysis was performed based on 45 terminals, with 28 ingroup and 17 outgroup taxa, and 126 characters (two continuous and 124 discrete) from adult morphology, including male and female genitalia. Parsimony analyses were performed under equal and implied weighting. Results support Agrotis as a monophyletic group, sister to the South American species of Feltia (Feltia tent.), and the latter being more closely related to Agrotis than to the ‘true’ Feltia. Species of Agrotis that branched off first (including the type species) have characters shared with both Feltia and Agrotis. South American species of Agrotis (with some proviso) form a clade that branched off later, with some weakly supported species groups that had been proposed in previous works. Biogeographical aspects of the group are discussed after optimizing species distributions on the tree. Trees obtained after analyses using implied weights show similar relationships to those under equal weights, particularly regarding Feltia tent., showing Feltia tent. plus Agrotis forming a monophyletic group, sister to the ‘true’ Feltia.
    Zoologica Scripta 11/2014;
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    ABSTRACT: We assessed the genetic variability of the Siberian spined loach Cobitis melanoleuca across its unusually broad distribution that encompasses areas greatly affected by Pleistocene glaciations. Due to extensive morphological variation among their populations, the taxonomic status of C. melanoleuca is complicated. It is unclear whether C. melanoleuca represents a single taxonomic unit or contains several species or subspecies. Our analyses showed low genetic variability in all populations without any phylogenetic structure. The absence of molecular distinctiveness indicates the conspecificity of all C. melanoleuca populations. Only a few common haplotypes shared by East Asian, Siberian and European populations were found at high frequency in the nuclear genes analysed. At the mitochondrial level, Siberian populations shared haplotypes with populations located at both extremes of the species’ range suggesting central populations as a source of current mitochondrial variability. Unimodal mismatch distributions and significant values from neutrality tests support a recent expansion of C. melanoleuca. Our time estimates suggest a postglacial colonisation of European waters around 1.0 MYA, indicating that C. melanoleuca may represent the last cobitid immigrant in Europe that used the northern route across Siberia to expand its range.
    Zoologica Scripta 10/2014;
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    ABSTRACT: We used both highly variable mitochondrial and nuclear loci to investigate the large mouse-eared bat species complex in the Western Palaearctic to clarify their systematic position. Although mitochondrial lineages show no species segregation and some haplotypes are shared between Myotis myotis and Myotis blythii sensu lato, Bayesian clustering methods based on multilocus genotypes indicate highly concordant nuclear and morphological species assignment. These multilocus, nuclear analyses detected only a single putative F1 hybrid in the extensive areas of sympatry sampled, thus confirming the biological species status of M. myotis and M. blythii s.l. We propose that the strong cytonuclear discordance in these species complex results from a combination of prior spatial isolation of the two species in different glacial refugia, followed by a succession of mitochondrial introgression events that occurred during the eastward and westward expansions of M. myotis and of M. blythii, respectively. The nuclear markers further indicate the presence of a notable genetic discontinuity within M. myotis that broadly separates populations into an eastern and a western component with an overlap zone in the Balkans. This eastern and western discontinuity is also apparent in the mitochondrial lineages with the D haplogroup largely confined to samples found in Thrace and Asia Minor. None of these genetic discontinuities correspond to the distribution of the two commonly recognized M. myotis subspecies (myotis and macrocephalicus). We also show that distinct morphological subspecies within M. blythii (oxygnathus, omari, risorius and lesviacus) in Europe and the near-East do not correlate with significant evolutionarily units, whether identified by mitochondrial or nuclear data and thus only represent local morphological variants with little taxonomic relevance.
    Zoologica Scripta 09/2014;