Phylogeny and divergence dating of the ladybird beetle tribe Coccinellini Latreille (Coleoptera: Coccinellidae: Coccinellinae)

2021 ◽  
Author(s):  
Romain Nattier ◽  
Alice Michel‐Salzat ◽  
Lucia M. Almeida ◽  
Pascaline Chifflet‐Belle ◽  
Alexandra Magro ◽  
...  
Keyword(s):  
Ladybird Beetle ◽  
Divergence Dating

Potential displacement of the native Tenuisvalvae notata by the invasive Cryptolaemus montrouzieri in South America suggested by differences in climate suitability

2021 ◽  
pp. 1-11
Author(s):  
Larissa F. Ferreira ◽  
Christian S. A. Silva-Torres ◽  
Jorge B. Torres ◽  
Robert C. Venette
Keyword(s):  
Biological Control ◽  
South America ◽  
Prey Availability ◽  
Ecological Factors ◽  
Growth Conditions ◽  
Cryptolaemus Montrouzieri ◽  
Seasonal Differences ◽  
Ladybird Beetle ◽  
Ecoclimatic Index ◽  
Climate Suitability

Abstract Tenuisvalvae notata (Mulsant) (Coccinellidae) is a predatory ladybird beetle native to South America. It specializes in mealybugs prey (Pseudococcidae), but relatively little is known about its ecology. In contrast, the ladybird beetle Cryptolaemus montrouzieri Mulsant (Coccinellidae) is indigenous to Australia and has been introduced to many countries worldwide including Brazil for biological control of mealybugs. The potential impacts of these introductions to native coccinellids have rarely been considered. The software CLIMEX estimated the climate suitability for both species as reflected in the Ecoclimatic Index (EI). Much of South America, Africa, and Australia can be considered climatically suitable for both species, but in most cases, the climate is considerably more favorable for C. montrouzieri than T. notata, especially in South America. The CLIMEX model also suggests seasonal differences in growth conditions (e.g. rainfall and temperature) that could affect the phenology of both species. These models suggest that few locations in South America would be expected to provide T. notata climatic refugia from C. montrouzieri. Although other ecological factors will also be important, such as prey availability, this analysis suggests a strong potential for displacement of a native coccinellid throughout most of its range as a consequence of the invasion by an alien competitor.

A new Pleistocene Ctenomys and divergence dating of the hyperdiverse South American rodent family Ctenomyidae

2021 ◽  
pp. 1-16
Author(s):  
Nahuel A. De Santi ◽  
Diego H. Verzi ◽  
A. Itatí Olivares ◽  
Pedro Piñero ◽  
Alicia Álvarez ◽  
...  
Keyword(s):  
South American ◽  
Divergence Dating

Germ-line transformation and RNAi of the ladybird beetle, Harmonia axyridis

2006 ◽  
Vol 15 (4) ◽  
pp. 507-512 ◽  
Author(s):  
H. Kuwayama ◽  
T. Yaginuma ◽  
O. Yamashita ◽  
T. Niimi
Keyword(s):  
Harmonia Axyridis ◽  
Germ Line ◽  
Ladybird Beetle ◽  
Germ Line Transformation

Surface chemistry of the ladybird beetle adhesive foot fluid across various substrates

2021 ◽  
Vol 16 (3) ◽  
pp. 031004
Author(s):  
James Elliott Fowler ◽  
Johannes Franz ◽  
Thaddeus W. Golbek ◽  
Tobias Weidner ◽  
Elena Gorb ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Ladybird Beetle

scholarly journals The role of climatic and geological events in generating diversity in Ethiopian grass frogs (genus Ptychadena )

2017 ◽  
Vol 4 (8) ◽  
pp. 170021 ◽  
Author(s):  
Megan L. Smith ◽  
Brice P. Noonan ◽  
Timothy J. Colston
Keyword(s):  
Habitat Complexity ◽  
Molecular Data ◽  
Cryptic Diversity ◽  
Horn Of Africa ◽  
Climatic Fluctuations ◽  
Divergence Dating ◽  
Evolutionary Radiation ◽  
Novel Taxa ◽  
Climatic History

Ethiopia is a world biodiversity hotspot and harbours levels of biotic endemism unmatched in the Horn of Africa, largely due to topographic—and thus habitat—complexity, which results from a very active geological and climatic history. Among Ethiopian vertebrate fauna, amphibians harbour the highest levels of endemism, making amphibians a compelling system for the exploration of the impacts of Ethiopia's complex abiotic history on biotic diversification. Grass frogs of the genus Ptychadena are notably diverse in Ethiopia, where they have undergone an evolutionary radiation. We used molecular data and expanded taxon sampling to test for cryptic diversity and to explore diversification patterns in both the highland radiation and two widespread lowland Ptychadena . Species delimitation results support the presence of nine highland species and four lowland species in our dataset, and divergence dating suggests that both geologic events and climatic fluctuations played a complex and confounded role in the diversification of Ptychadena in Ethiopia. We rectify the taxonomy of the endemic P. neumanni species complex, elevating one formally synonymized name and describing three novel taxa. Finally, we describe two novel lowland Ptychadena species that occur in Ethiopia and may be more broadly distributed.

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