Share This Author
Colonization history, ecological shifts and diversification in the evolution of endemic Galápagos weevils
- A. Sequeira, A. Lanteri, L. R. Albelo, S. Bhattacharya, M. Sijapati
- BiologyMolecular ecology
- 1 February 2008
The phylogeny proposes one intra‐island origin for Galapaganus endemics, but monophyly tests suggest a larger contribution of in‐situ speciation on older islands, and patterns of diversification rate variation on older and younger islands correspond to the volcanic activity or remnants of such activity, while the pattern of independent evolution of restricted habitat preferences in different islands suggests that habitat shifts could also have contributed to species diversity in Galap Paganus.
Are flightless Galapaganus weevils older than the Galápagos Islands they inhabit?
Based on a mtDNA clock calibrated for arthropods, the initial speciation separating the oldest species, G. galapagoensis on the oldest island, San Cristóbal, from the remaining species in the Galápagos occurred about 7.2 Ma, which exceeds geological ages of the extant emerged islands, although it agrees well with molecular dating of endemic GaláPagos iguanas, geckos and lizards.
Diversity of Boll Weevil Populations in South America: A Phylogeographic Approach
It is proposed that in South America there are: populations with characteristics of recent invaders, which would be remnants of “bottlenecks” that occurred after single or multiple colonization events, probably from the United States, and ancient populations associated with native forests, partially isolated by events of historical fragmentation.
Wolbachia infection in the tribe Naupactini (Coleoptera, Curculionidae): association between thelytokous parthenogenesis and infection status
Screening of the maternally inherited Wolbachia bacterium in 29 weevils of the tribe Naupactini, using multilocus sequence typing allowed us to assess a significant correlation between asexuality and infection, and suggests an involvement of WolbachIA in the origin of this reproductive mode.
Systematics, cladistics and biogeography of a new weevil genus, Galapaganus (Coleoptera: curculionidae) from the Galápagos Islands, and coasts of Ecuador and Perú
- A. Lanteri
Nuclear and mitochondrial sequences confirm complex colonization patterns and clear species boundaries for flightless weevils in the Galápagos archipelago
- A. Sequeira, M. Sijapati, A. Lanteri, L. Roque Albelo
- BiologyPhilosophical Transactions of the Royal Society B…
- 27 October 2008
The present reconstruction relies on submerged platforms to explain the early divergence of the young southern Isabela endemics or the Española or San Cristobal populations, and the amount of diversity generated through intra-island processes is skewed towards older islands, suggesting that island age significantly influences diversity.
Graphognathus Buchanan a new synonym of Naupactus Dejean and systematics of the N. leucoloma species group (Coleoptera: Curculionidae).
Parthenogenesis in the Tribe Naupactini (Coleoptera: Curculionidae)
Although Naupactini range throughout most of the New World with their highest species diversity in the tropics, all the parthenogenetic lineages are native to the subtropical and temperate areas of southern South America with theirhighest diversity and abundance in the Pampas.
Out of the forest: past and present range expansion of a parthenogenetic weevil pest, or how to colonize the world successfully
- M. Rodriguero, A. Lanteri, N. Guzmán, Jerson V. Carús Guedes, V. Confalonieri
- BiologyEcology and evolution
- 6 July 2016
The establishment of N. cervinus in areas outside its native range may indicate adaptation to drier and cooler conditions, and parthenogenesis would be advantageous for the colonization of new environments by preventing the breakup of successful gene combinations.
Weevils Injurious for Roots of Citrus in São Paulo State, Brazil
Ten species of broad nosed weevils belonging to Entiminae, Naupactini, are recorded as harmful for roots of citrus in Sao Paulo state, Brazil, and a key, diagnosis and habitus photographs of the species are provided to facilitate their identification.