The Experts below are selected from a list of 7965 Experts worldwide ranked by ideXlab platform
Niklas Wahlberg - One of the best experts on this subject based on the ideXlab platform.
-
Nymphalid butterflies diversify following near demise at the Cretaceous/Tertiary boundary
Proceedings of The Royal Society B: Biological Sciences, 2009Co-Authors: Niklas Wahlberg, Julien Leneveu, Ullasa Kodandaramaiah, Sören Nylin, André V. L. Freitas, Carlos Pena, Andrew V. Z. BrowerAbstract:The butterfly family Nymphalidae contains some of the most important non-drosophilid insect model systems for evolutionary and ecological studies, yet the evolutionary history of the group has remained shrouded in mystery. We have inferred a robust phylogenetic hypothesis based on sequences of 10 genes and 235 morphological characters for exemplars of 400 of the 540 valid nymphalid genera representing all major lineages of the family. By dating the branching events, we infer that Nymphalidae originated in the Cretaceous at 90 Ma, but that the ancestors of 10–12 lineages survived the end-Cretaceous catastrophe in the Neotropical and Oriental regions. Patterns of diversification suggest extinction of lineages at the Cretaceous/Tertiary boundary (65 Ma) and subsequent elevated speciation rates in the Tertiary.
-
phylogeny and biogeography of coenonympha butterflies Nymphalidae satyrinae patterns of colonization in the holarctic
Systematic Entomology, 2009Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:We studied the historical biogeography of a group of butterflies in the Holarctic region belonging to the genus Coenonympha (Nymphalidae: Satyrinae: Coenonymphina), based on a phylogenetic hypothes ...
-
Phylogeny and biogeography of Coenonympha butterflies (Nymphalidae: Satyrinae) – patterns of colonization in the Holarctic
Systematic Entomology, 2009Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:We studied the historical biogeography of a group of butterflies in the Holarctic region belonging to the genus Coenonympha (Nymphalidae: Satyrinae: Coenonymphina), based on a phylogenetic hypothes ...
-
out of africa origin and dispersal mediated diversification of the butterfly genus junonia Nymphalidae nymphalinae
Journal of Evolutionary Biology, 2007Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:The relative importance of dispersal and vicariance in the diversification of taxa has been much debated. Within butterflies, a few studies published so far have demonstrated vicariant patterns at the global level. We studied the historical biogeography of the genus Junonia (Nymphalidae: Nymphalinae) at the intercontinental level based on a molecular phylogeny. The genus is distributed over all major biogeographical regions of the world except the Palaearctic. We found dispersal to be the dominant process in the diversification of the genus. The genus originated and started diversifying in Africa about 20 Ma and soon after dispersed into Asia possibly through the Arabian Peninsula. From Asia, there were dispersals into Africa and Australasia, all around 5 Ma. The origin of the New World species is ambiguous; the ancestral may have dispersed from Asia via the Beringian Strait or from Africa over the Atlantic, about 3 Ma. We found no evidence for vicariance at the intercontinental scale. We argue that dispersal is as important as vicariance, if not more, in the global diversification of butterflies.
-
Chromosomal evolution in the South American Nymphalidae
Hereditas, 2007Co-Authors: Keith S. Brown, Niklas Wahlberg, André V. L. Freitas, Barbara Von Schoultz, Anja O. SauraAbstract:We give the chromosome numbers of about 80 species or subspecies of Biblidinae as well as of numbers of neotropical Libytheinae (one species), Cyrestinae (4) Apaturinae (7), Nymphalinae (about 40), Limenitidinae (16) and Heliconiinae (11). Libytheana has about n=32, the Biblidinae, Apaturinae and Nymphalinae have in general n=31, the Limenitidinae have n=30, the few Argynnini n=31 and the few species of Acraeni studied have also mostly n=31. The results agree with earlier data from the Afrotropical species of these taxa. We supplement these data with our earlier observations on Heliconiini, Danainae and the Neotropical Satyroid taxa. The lepidopteran modal n=29-31 represents clearly the ancestral condition among the Nymphalidae, from which taxa with various chromosome numbers have differentiated. The overall results show that Neotropical taxa have a tendency to evolve karyotype instability, which is in stark contrast to the otherwise stable chromosome numbers that characterize both Lepidoptera and Trichoptera.
Olaf H. H. Mielke - One of the best experts on this subject based on the ideXlab platform.
-
[Supplementary Material] A new subspecies of Pierella lena (Lepidoptera: Nymphalidae: Satyrinae) in northeastern Brazil
Florida Entomologist, 2015Co-Authors: Márlon Paluch, Olaf H. H. Mielke, Thamara Zacca, Ricardo Russo Siewert, Mirna Martins CasagrandeAbstract:Pierella lena atlantica Paluch, Zacca & Siewert ssp. nov . (Lepidoptera: Nymphalidae: Satyrinae) is described from the Atlantic Forest of Bahia (Itanagra, Una, and Cachoeira), Brazil. A discussion about this new taxon and its relationship with the other subspecies of P. lena (Linnaeus, 1767) are provided, as are the first illustrations of the female genitalia and an identification key to adults of Pierella hyalinus (Gmelin, [1790]) and P. lena from South America. Resumo Pierella lena atlantica Paluch, Zacca & Siewert ssp. nov. (Lepidoptera: Nymphalidae: Satyrinae) e descrita da Mata Atlântica da Bahia (Itanagra, Una e Cachoeira). Uma discussao sobre o relacionamento deste taxon com as outras subespecies de P. lena (Linnaeus, 1767) e fornecida, assim como a genitalia feminina da especie e ilustrada pela primeira vez. Ainda, uma chave de identificacao dos adultos de Pierella hyalinus (Gmelin, [1790]) e P. lena da America do Sul e apresentada.
-
Notes on the geographic distribution and subspecific taxonomy of Sais rosalia (Cramer) (Lepidoptera, Nymphalidae, Ithomiini), including the first records in Paraguay
Revista Brasileira de Entomologia, 2014Co-Authors: Sergio D. Ríos Díaz, Mirna Martins Casagrande, Olaf H. H. Mielke, Fernando Maia Silva Dias, Gerardo LamasAbstract:Notes on the geographic distribution and subspecific taxonomy of Sais rosalia (Cramer) (Lepidoptera, Nymphalidae, Ithomiini), including the first records in Paraguay. This paper provides comments on the subspecific taxonomy and geographic distribution of Sais rosalia (Cramer, 1779) (Lepidoptera, Nymphalidae, Ithomiini), as well as an up-to-date distributional map, complemented with unpublished distributional data based on specimens deposited in the Colecao Entomologica Pe. Jesus S. Moure, Curitiba, Brazil and the Museo de Historia Natural, Lima, Peru. The following synonyms are proposed: Sais rosalia camariensis Haensch, 1905 syn. rev. as junior subjective synonym of Papilio rosalia Cramer, 1779 and Sais rosalia brasiliensis Talbot, 1928 syn. rev. as junior subjective synonym of Sais rosalia rosalinde Weymer, 1890. Additionally, the first country records of Sais rosalia in Paraguay, including the southernmost record of the species, are documented.
-
Mechanitis polymnia casabranca and Ithomia lichyi lichyi (Lepidoptera: Nymphalidae) damaging tree of Solanum granuloso-leprosum (Solanaceae)
CERNE, 2014Co-Authors: Wagner De Souza Tavares, Olaf H. H. Mielke, Alexandre Igor De Azevedo Pereira, José Eduardo Serrão, José Cola ZanuncioAbstract:The Zona da Mata region is located in southeastern Minas Gerais State, Brazil with fauna and flora diversified, including herbivorous insects and Solanaceae plants. Ithomiinae caterpillars were observed damaging tree of Solanum granuloso- leprosum Dunal (Solanaceae), used for different purposes and abundant in secondary forest. The objective of this study was to identify defoliating caterpillars of S. granuloso-leprosum at the campus of Universidade Federal de Vicosa (UFV) in Vicosa, Minas Gerais State, Brazil and review host plants of Mechanitis polymnia L., 1758 (Lepidoptera: Nymphalidae). Thirteen caterpillars found damaging a tree of S. granuloso-leprosum at the campus of UFV were collected and maintained in the Laboratorio de Controle Biologico de Insetos (LCBI) from UFV until adult emergence. These caterpillars were of two species, being ten of the first and three of the second species. Adult specimens of the latter species were identified as Ithomia lichyi lichyi D'Almeida, 1939 (Lepidoptera: Nymphalidae) in the Departamento de Zoologia of Universidade Federal do Parana (UFPR) in Curitiba, Parana State, Brazil and of the group of ten caterpillars as Mechanitis polymnia casabranca Haensch, 1905 (Lepidoptera: Nymphalidae) in the Museu de Zoologia of Universidade de Sao Paulo (USP) in Sao Paulo State, Brazil. This is the first report of M. polymnia casabranca and I. lichyi lichyi together damaging plant of S. granuloso-leprosum in the Zona da Mata region of Minas Gerais State, Brazil and 57 plants are recorded as host of M. polymnia.
-
External morphology of the adult of Dynamine postverta (Cramer) (Lepidoptera, Nymphalidae, Biblidinae) and patterns of morphological similarity among species from eight tribes of Nymphalidae
Revista Brasileira de Entomologia, 2013Co-Authors: Luis Anderson Ribeiro Leite, Mirna Martins Casagrande, Olaf H. H. MielkeAbstract:External morphology of the adult of Dynamine postverta (Cramer) (Lepidoptera, Nymphalidae, Biblidinae) and patterns of morphological similarity among species from eight tribes of Nymphalidae. The external structure of the integument of Dynamine postverta postverta (Cramer, 1779) is based on detailed morphological drawings and scanning electron microscopy. The data are compared with other species belonging to eight tribes of Nymphalidae, to assist future studies on the taxonomy and systematics of Neotropical Biblidinae.
-
Patterns of morphological similarity among species from eight tribes of Nymphalidae, with special detailing of Dynamine postverta postverta (Cramer, 1779) (Lepidoptera, Nymphalidae, Biblidinae).
Revista Brasileira De Entomologia, 2012Co-Authors: Luis Anderson Ribeiro Leite, Mirna Martins Casagrande, Olaf H. H. MielkeAbstract:The external structure of the integument of Dynamine postverta postverta (Cramer, 1779) is based on detailed morphological drawings and scanning electron microscopy . The data are compared with other species belonging to eight tribes of Nymphalidae , to assist future studies on the taxonomy and systematics of Neotropical Biblidinae .
Heon Cheon Jeong - One of the best experts on this subject based on the ideXlab platform.
-
Sequence Divergence and Phylogenetic Investigation of the Nymphalidae (Lepidoptera: Papilionoidea) Occurring in South Korea
International Journal of Industrial Entomology, 2013Co-Authors: Xinlong Wan, Heon Cheon Jeong, Min Jee Kim, Youngho Cho, Jumin Jun, Kwang Youll Lee, Iksoo KimAbstract:【As a first step toward understanding the divergence and relationships of the Nymphalidae (Lepidoptera: Papilionoidea) occurring in South Korea, cytochrome oxidase subunit I (COI), 16S ribosomal RNA (16S rRNA), and elongation factor- $1{\alpha}$ (EF- $1{\alpha}$ ) that comprise 3,501-3,716 bp were either sequenced (55 species) or the sequences were obtained from GenBank (23 species). The concatenated sequence divergence of six nymphalid subfamilies ranked in the following order: Danainae (10.3%), Satyrinae (9.5%), Limenitidinae (8.0%), Apaturinae (7.0%), Nymphalinae (6.7%), and Heliconiinae (6.2%). As has been reported in previous large scale international studies, the subfamilial relationships of (((((Limenitidinae + Heliconiinae) + (Nymphalinae + Apaturinae)) + Satyrinae) + Libytheinae) + Danainae) were also confirmed, except for the switched positions between Danainae and Libytheinae, and supported all subfamilies and tribe monophylies. Unlikely consistent phylogenetic relationships among genera within the majority of tribes in Nymphalidae, a conflicting relationship within the subfamily Apaturinae was obvious, presenting Apatura as sister to either Mimathyma or (Mimathyma + (Sephisa + (Hestina + Sasakia))), and both of these relationships are unconventional. Within the subfamily Limenitidinae, the genus Neptis was consistently revealed as a paraphyletic with respect to the genus Aldania, requiring further taxonomic investigation of the genus. Although limited, current sequence information and phylogenetic relationships are expected to be helpful for further studies.】
-
Phylogenetic relationships of true butterflies (Lepidoptera: Papilionoidea) inferred from COI, 16S rRNA and EF-1α sequences
Molecules and Cells, 2010Co-Authors: Heon Cheon JeongAbstract:The molecular phylogenetic relationships among true butterfly families (superfamily Papilionoidea) have been a matter of substantial controversy; this debate has led to several competing hypotheses. Two of the most compelling of those hypotheses involve the relationships of (Nymphalidae + Lycaenidae) + (Pieridae + Papilionidae) and (((Nymphalidae + Lycaenidae) + Pieridae) + Papilionidae). In this study, approximately 3,500 nucleotide sequences from cytochrome oxidase subunit I (COI), 16S ribosomal RNA (16S rRNA), and elongation factor-1 alpha (EF-1α) were sequenced from 83 species belonging to four true butterfly families, along with those of three outgroup species belonging to three lepidopteran superfamilies. These sequences were subjected to phylogenetic reconstruction via Bayesian Inference (BI), Maximum Likelihood (ML), and Maximum Parsimony (MP) algorithms. The monophyletic Pieridae and monophyletic Papilionidae evidenced good recovery in all analyses, but in some analyses, the monophylies of the Lycaenidae and Nymphalidae were hampered by the inclusion of single species of the lycaenid subfamily Miletinae and the nymphalid subfamily Danainae. Excluding those singletons, all phylogenetic analyses among the four true butterfly families clearly identified the Nymphalidae as the sister to the Lycaenidae and identified this group as a sister to the Pieridae, with the Papilionidae identified as the most basal linage to the true butterfly, thus supporting the hypothesis: (Papilionidae + (Pieridae + (Nymphalidae + Lycaenidae))).
Ullasa Kodandaramaiah - One of the best experts on this subject based on the ideXlab platform.
-
Nymphalid butterflies diversify following near demise at the Cretaceous/Tertiary boundary
Proceedings of The Royal Society B: Biological Sciences, 2009Co-Authors: Niklas Wahlberg, Julien Leneveu, Ullasa Kodandaramaiah, Sören Nylin, André V. L. Freitas, Carlos Pena, Andrew V. Z. BrowerAbstract:The butterfly family Nymphalidae contains some of the most important non-drosophilid insect model systems for evolutionary and ecological studies, yet the evolutionary history of the group has remained shrouded in mystery. We have inferred a robust phylogenetic hypothesis based on sequences of 10 genes and 235 morphological characters for exemplars of 400 of the 540 valid nymphalid genera representing all major lineages of the family. By dating the branching events, we infer that Nymphalidae originated in the Cretaceous at 90 Ma, but that the ancestors of 10–12 lineages survived the end-Cretaceous catastrophe in the Neotropical and Oriental regions. Patterns of diversification suggest extinction of lineages at the Cretaceous/Tertiary boundary (65 Ma) and subsequent elevated speciation rates in the Tertiary.
-
phylogeny and biogeography of coenonympha butterflies Nymphalidae satyrinae patterns of colonization in the holarctic
Systematic Entomology, 2009Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:We studied the historical biogeography of a group of butterflies in the Holarctic region belonging to the genus Coenonympha (Nymphalidae: Satyrinae: Coenonymphina), based on a phylogenetic hypothes ...
-
Phylogeny and biogeography of Coenonympha butterflies (Nymphalidae: Satyrinae) – patterns of colonization in the Holarctic
Systematic Entomology, 2009Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:We studied the historical biogeography of a group of butterflies in the Holarctic region belonging to the genus Coenonympha (Nymphalidae: Satyrinae: Coenonymphina), based on a phylogenetic hypothes ...
-
out of africa origin and dispersal mediated diversification of the butterfly genus junonia Nymphalidae nymphalinae
Journal of Evolutionary Biology, 2007Co-Authors: Ullasa Kodandaramaiah, Niklas WahlbergAbstract:The relative importance of dispersal and vicariance in the diversification of taxa has been much debated. Within butterflies, a few studies published so far have demonstrated vicariant patterns at the global level. We studied the historical biogeography of the genus Junonia (Nymphalidae: Nymphalinae) at the intercontinental level based on a molecular phylogeny. The genus is distributed over all major biogeographical regions of the world except the Palaearctic. We found dispersal to be the dominant process in the diversification of the genus. The genus originated and started diversifying in Africa about 20 Ma and soon after dispersed into Asia possibly through the Arabian Peninsula. From Asia, there were dispersals into Africa and Australasia, all around 5 Ma. The origin of the New World species is ambiguous; the ancestral may have dispersed from Asia via the Beringian Strait or from Africa over the Atlantic, about 3 Ma. We found no evidence for vicariance at the intercontinental scale. We argue that dispersal is as important as vicariance, if not more, in the global diversification of butterflies.
Sören Nylin - One of the best experts on this subject based on the ideXlab platform.
-
Nymphalid butterflies diversify following near demise at the Cretaceous/Tertiary boundary
Proceedings of The Royal Society B: Biological Sciences, 2009Co-Authors: Niklas Wahlberg, Julien Leneveu, Ullasa Kodandaramaiah, Sören Nylin, André V. L. Freitas, Carlos Pena, Andrew V. Z. BrowerAbstract:The butterfly family Nymphalidae contains some of the most important non-drosophilid insect model systems for evolutionary and ecological studies, yet the evolutionary history of the group has remained shrouded in mystery. We have inferred a robust phylogenetic hypothesis based on sequences of 10 genes and 235 morphological characters for exemplars of 400 of the 540 valid nymphalid genera representing all major lineages of the family. By dating the branching events, we infer that Nymphalidae originated in the Cretaceous at 90 Ma, but that the ancestors of 10–12 lineages survived the end-Cretaceous catastrophe in the Neotropical and Oriental regions. Patterns of diversification suggest extinction of lineages at the Cretaceous/Tertiary boundary (65 Ma) and subsequent elevated speciation rates in the Tertiary.
-
phylogenetic relationships and historical biogeography of tribes and genera in the subfamily nymphalinae lepidoptera Nymphalidae
Biological Journal of The Linnean Society, 2005Co-Authors: Niklas Wahlberg, Andrew V. Z. Brower, Sören NylinAbstract:We infer for the first time the phylogenetic relationships of genera and tribes in the ecologically and evolutionarily well-studied subfamily Nymphalinae using DNA sequence data from three genes: 1450 bp of cytochrome oxidase subunit I (COI) (in the mitochondrial genome), 1077 bp of elongation factor 1-alpha (EF1- a ) and 400-403 bp of wing- less (both in the nuclear genome). We explore the influence of each gene region on the support given to each node of the most parsimonious tree derived from a combined analysis of all three genes using Partitioned Bremer Support. We also explore the influence of assuming equal weights for all characters in the combined analysis by investigating the stability of clades to different transition/transversion weighting schemes. We find many strongly supported and stable clades in the Nymphalinae. We are also able to identify 'rogue' taxa whose positions are weakly supported (the different gene regions are in conflict with each other) and unstable. Our main conclusions are: (1) the tribe Coeini as currently constituted is untenable, and Smyrna, Colobura and Tigridia are part of Nymphalini; (2) 'Kallimini' is paraphyletic with regard to Melitaeini and should be split into three tribes: Kallimini s.s. , Junoniini and Victorinini; (3) Junoniini, Victorinini, Melitaeini and the newly circumscribed Nymphalini are strongly supported monophyletic groups, and (4) Precis and Junonia are not synonymous or even sister groups. The species Junonia coenia , a model system in developmental biology, clearly belongs in the genus Junonia . A dispersal-vicariance analysis suggests that dispersal has had a major effect on the distributions of extant species, and three biotic regions are identified as being centres of diversification of three major clades: the Palaearctic for the Nymphalis -group, the Afrotropics for Junoniini and the Nearctic for Melitaeini. © 2005 The Linnean Society of London, Biological Journal of the Linnean Society , 2005, 86 , 227-251. ADDITIONAL KEYWORDS: DIVA - molecular phylogeny - Partitioned Bremer Support - sensitivity analysis.
-
Towards a better understanding of the higher systematics of Nymphalidae (Lepidoptera: Papilionoidea).
Molecular Phylogenetics and Evolution, 2003Co-Authors: Niklas Wahlberg, Elisabet Weingartner, Sören NylinAbstract:Abstract Research on the molecular systematics of higher taxa in the butterfly family Nymphalidae (Lepidoptera) is only just beginning. Outgroup selection is difficult at the moment due to the lack of consensus on the basal relationships of the major groups in Nymphalidae. We identify four major clades in the Nymphalidae based on a cladistic analysis of one mitochondrial gene sequence (COI, 1450 bp) and two nuclear gene sequences (EF-1α, 1064 bp, and wingless, 412–415 bp) from 54 exemplar species sampled from all currently recognized subfamilies. The COI data set was found to be highly incongruent with the nuclear data sets and a Partitioned Bremer Support analysis shows that the COI data set largely undermines support for most clades. Transitions at the third codon positions of the COI data set were highly saturated, but analyzing the combined data set with the COI third positions removed did not change the results. The major clades we found are termed the danaine clade (including Danainae), the satyrine clade (including Charaxinae, Satyrinae, Calinaginae, and Morphinae), the heliconiine clade (including Heliconiinae and Limenitidinae excluding Biblidini, Cyrestini, Pseudergolini, and Coeini) and the nymphaline clade (including Nymphalinae, Apaturinae, and Coeini, Cyrestini, Pseudergolini, and Biblidini from Limenitidinae). The heliconiine and nymphaline clades are sister groups, while the most parsimonious explanation for the combined data set places the danaine clade as the most basal large group of Nymphalidae. Our results give one of the strongest hypotheses for the subfamilial relationships within Nymphalidae. We were able to resolve the polyphyletic nature of Limenitidinae, which we recommend to be split into three subfamilies: Limenitidinae, Biblidinae, and Cyrestinae. The tribe Coeini belongs in Nymphalinae.
