geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Distributional patterns and possible origin of leafhoppers


, : Distributional patterns and possible origin of leafhoppers. Revista Brasileira de Zoologia 17(1): 81-156, Marco

The zoogeographical distribution of 42 cicadellid subfamilies and their assigned tribes and genera is compiled with distributional maps and proposed dispersal pathways of genera that are shared interzoogeographically. Possible origin of the subfamilies and tribes is proposed in an ancestral context from which the more modern extant groups evolved whereas origin of genera is in a more modern context. Notwithstanding their complex biogeography, the distributional data of the higher groups indicate that all of the cosmopolitan and near cosmopolitan subfamilies arose during early Cretaceous or possibly the late Jurassic period (140-116 m.y.a.) when continental drift was in its early stages. Nearly all of the New World and some Old World subfamilies are considered of more recent origin (late Cretaceous-Tertiary). Ninety percent of the known genera (2,126) are endemic to their respective zoogeographical region and subregion, thus indicating relatively high host specificity and low rate of dispersal. The majority (76%) of known extant genera are pantropical in origin, suggesting early or possible Gondwanaland origin of their ancestors. Dispersal pathways of genera shared by more than one zoogeographical region were generally south to north (Neotropical/Nearctic, Oriental/Palaearctic) or west to east (Palaearctic/Nearctic, Oriental/Australian), from regions of high diversity to regions of low diversity and from warmer climates to cooler climates. The most diverse and richest leafhopper fauna are present in the Neotropical and Ethiopian regions although taxal affinities between them are poorest. The most depauperate fauna are in the Nearctic region and in Australia, reflecting the impact of isolating and ecological factors on distribution and radiation. Ecological barriers were more evident between the Ethiopian and Oriental fauna than between any other zoogeographical combination. Taxal affinities appeared to be correlated with close continental proximities. Vicariance (physical) was the principal event that appeared to explain the distribution of many subfamilies and tribes whereas dispersal accounted for distribution of the majority of interzoogeographical genera.

US$29.90


Other references

Ortiz Dominguez, A.; Torrealba, D.; Fazio, S., 2004: Effect of interference time of red rice on yield of rice varieties Cimarron and FONAIAP 1. The effects of interference time (15, 30, 45, 60 and 130 days after emergence) of red rice on the yield and yield components of rice cultivars Cimarron and FONAIAP 1 were determined in a field experiment conducted in Venezuela during the dry seaso...

Devaraj, P.E.; Foroni, L.; Sekhar, M.; Butler, T.; Samson, D.; Prentice, H.G.; Hoffbrand, A.V.; Secker Walker, L.M., 1993: A novel E2A breakpoint and detection of minimal residual disease in patients with t ALL using RT-PCR. Blood 82(10 SUPPL 1): 38A

Sanglard, D.; Ischer, F.; Bille, J., 2000: Mitochondrial loss is associated with High Frequency Azole Resistance and with upregulation of the ABC-transporter genes CgCDR1 and CgCDR2 in Candida glabrata. Abstracts of the Interscience Conference on Antimicrobial Agents & Chemotherapy 40: 395

Hughes, E.L.; Gavins, F.N.E., 2010: Troubleshooting methods: Using intravital microscopy in drug research. The technique of observing cellular interactions in real time using intravital microscopy is now a recognised technique in many laboratories. This review highlights the potential uses and pitfalls of this form of microscopy in drug research. This...

Floyd, C.E.; Jaszczak, R.J.; Coleman, R., 1986: Image resampling on a cylindrical sector grid. A cylindrical sector image grid with equal area pixels for representing tomographic images is described which offers computational advantages for some algebraic and stochastic reconstruction strategies. An evaluation of techniques for resampling f...

Roemisch, J.; Feussner, A.; Stoehr, H.A.; Weisse, J.; Kanzy, E.J.; Lang, W.; Gronski, P., 1998: Evaluation of an assay for antibodies to FVIII inhibitors by the generation of anti-idiotypes in rabbits. Blood 92(10 SUPPL 1 PART 1-2): 98B, Nov 15

Taimeh, A.Y.; Hattar, B.I., 1988: Phosphorus fixation in some calcareous Vertisols in Jordan. Two experiments were carried out to assess the relative effect of different soil properties on phosphorus fixation in some calcareous Vertisols in Jordan. In the first experiment, 5000 ppm of P-solution was added to 10 g soil samples. The samples...

Dalton, A.C.; Shlamkovitch, T.; Papo, N.; Barton, W.A., 2016: Constitutive Association of Tie1 and Tie2 with Endothelial Integrins is Functionally Modulated by Angiopoietin-1 and Fibronectin. NlmCategory="UNASSIGNED">Functional cross-talk between Tie2 and Integrin signaling pathways is essential to coordinate endothelial cell adhesion and migration in response to the extracellular matrix, yet the mechanisms behind this phe...

Alikhanian, S.I.; Krylov, V.N.; Zhazykov, I., 1971: Studies on rII region of T2L phage. Experientia 27(4): 468-469

Katzka D.A.; Morad M., 1989: Inactivation of calcium current is both intracellular calcium concentration and voltage dependent in the guinea pig gastric smooth muscle cell. Gastroenterology 96(5 PART 2): A251