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Mesozoic mass extinctions and angiosperm radiation: does the molecular clock tell something new?

-167. Archangelsky, S., Barreda, V., Passalia, M. G., Gandolfo, M., Prámparo, M., Romeroa, E., Cúneo, R., Zamuner, A., Iglesias, A., Llorens, M., Puebla, G. G., Quattrocchio, M. & Volkheimer, W., 2009. Early angiosperm diversification: evidence from southern South America. Cretaceous Research 30, 1073-1082. Courtillot, V., 2007. Evolutionary catastrophes - the science of mass extinction. Cambridge University Press (Cambridge), 173 pp. Crane, P. R., 1987. Vegetational consequences of the angiosperm diversification. [In:] E. M

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Effects of Some Cover Crops on Light Extinction and Weed Coverage in Sunflower Field

Abstract

In order to evaluate the effects of some cover crops on extinction coefficient and weed cover percentage in sunflower, a field experiment was conducted based on a randomized complete block design with nine treatments and three replicates at the Agricultural Research Station, Tabriz University of Iran, during growing season 2012-2013. Treatments were triticale, hairy vetch, rapeseed, triticale + hairy vetch, triticale + rapeseed, hairy vetch + rapeseed, application of trifluralin herbicide, and controls (weed infested and weed free without planting cover crop). Result indicated than once established, living mulches can rapidly occupy the open space between the rows of the main crop and use the light that would otherwise be available to weeds. In the all cover crops treatments, the light extinction coefficient was increased and weed cover percentage was reduced. Highest reduction in total weed species was observed in hairy vetch + rapeseed and triticale + rapeseed cover crop 61.92% and 61.43 %, respectively, compared to weed infested, so this treatment was better than trifluralin application. It concluded that cover crops could be considered as integrated strategies for weed sustainable management.

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Extinction of Lasiommata petropolitana (Fabricius, 1787) (Lepidoptera: Nymphalidae) in the Czech Republic: a case of habitat loss at a range margin

Abstract

Lasiommata petropolitana is a boreomontane butterfly, declining in Central Europe and not recorded in the Czech Republic since 1975. Based on revision of all existing archival records and results of recent targeted surveys in mountainous regions of East Moravia, area of its past occurrence, we document its gradual retreat and ultimate regional extinction. The historical range, marginal with respect to contiguous distribution along the Carpathian mountain chain, included both foothills and higher elevations of Bílé Karpaty, Hostýnské Vrchy, Javorníky, Moravskoslezské Beskydy and Vsetínské Vrchy Mts; pre-1950 records document also a past occurrence at calcareous bedrock localities in Brno environs. Other past lowland records (Oslava valley, Olomouc, Znojmo) were due to misidentifications. Within the historical Czech range, the butterfly inhabited pastures with exposed calcareous, flysh or sandstone bedrock, maintained by traditional grazing. The decline of the species proceeded from lower elevations and foothills towards mountain ridges. The higher elevation sites were encroached by successional changes, or intentionally afforested, with post-war decline of mountain grazing. This development went largely unnoticed by conservation authorities, and represents a loss of mountain butterfly from marginal parts of its range.

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The late Silurian–Middle Devonian long-term eustatic cycle as a possible control on the global generic diversity dynamics of bivalves and gastropods

References Aberhan, M. & Kiessling, W., 2012. Phanerozoic marine biodiversity - a fresh look at data, methods, patterns and processes. [In:] J.A. Talent (Ed.): Earth and life: global biodiversity, extinction intervals and biogeographic perturbations through time . Springer, Dordrecht, 3-22. Alroy, J., Aberhan, M., Bottjer, D.J., Foote, M., Fürsich, F.T., Harries, P.J., Hendy, A.J.W., Holland, S.M., Ivany, L.C., Kiessling, W., Kosnik, M.A., Marshall, C.R., McGowan, A.J., Miller, A.I., Olszewski, T.D., Patzkowsky, M

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Determining species expansion and extinction possibilities using probabilistic and graphical models

References Andreone, F., Cadle, J.E., Cox, N., Glaw, F., Nussbaum, R.A., Raxworthy, C.J., Stuart, S.N., Vallan, D. & Vences M. (2005). Species review of amphibian extinction risks in Madagascar: conclusions from the global amphibian assessment. Conserv. Biol., 19(6), 1790-1802. DOI: 10.1111/j.1523-1739.2005.00249.x. Böhm, M., Collen, B., Baillie, J.E., Bowles, P., Chanson, J., Cox, N. et al. (2013). The conservation status of the world’s reptiles. Biol. Conserv., 157, 372-385. DOI :10.1016/j.biocon.2012

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Breeding of the Rook (Corvus frugilegus) in the Czech Silesia – the past and the present / Hnízdění havrana polního (Corvus frugilegus) v Českém Slezsku – historie a současnost

eastern England dominated by winter cereals. - Folia Zool. 53: 179-188. Mayer J. & Pospíšil M. (1976): Hnízdění havrana polního (Corvus frugilegus) v O stravě v roce 1975. - Ochrana fauny Severomoravského kraje, ornitologická sdělení 8: 10-14. Oliva M. (1959): K hnízdění havrana polního (Corvus frugilegus L.) v Ostravě. - Zprávy MOS 1959(6): 66-67. - (1960): Hnízdění havrana polního (Corvus frugilegus L.). - Zprávy MOS 1960(3): 32-33. Orłowski G. & Czapulak A. (2007): Different extinction risks of the breeding colonies of

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Extinction of the initial within-compound association established in a blocked preexposure to two compound flavours

Mondragón, E., & Hall, G. (2002). Analysis of the perceptual learning effect in flavor aversion learning: evidence for stimulus differentiation. Quarterly Journal of Experimental Psychology, 55B , 153–169. doi: 10.1080/02724990143000225 Rescorla, R.A. (2003). Protection from extinction. Learning & Behavior, 31:124–132. doi: 10.3758/BF03195975 Rescorla, R.A., & Freberg, L. (1978). The extinction of within-compound flavor associations. Learning and Motivation, 4 , 411–427. doi: 10.1016/0023-9690(78)90003-6 Rodríguez, G., & Alonso, G. (2014

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Changes in the composition of trace fossil assemblages across the Paleocene–Eocene transition in the north-western Tethys (Untersberg section, Austria)

References Alegret L., Ortiz S. & Molina E. 2009a: Extinction and recovery of benthic foraminifera across the Paleocene–Eocene Thermal Maximum at the Alamedilla section (Southern Spain). Palaeogeogr. Palaeoclimatol. Palaeoecol. 279, 186–200. Alegret L., Ortiz S., Orue-Etxebarria X., Bernaola G., Baceta J.I., Monech S., Apellániz E. & Pujalte V. 2009b: The Paleocene– Eocene Thermal Maximum: new data on microfossil turnover at the Zumaia section, Spain. Palaios 24, 318–328. Alegret L., Rodríguez-Tovar F.J. & Uchman A. 2015: How bioturbation

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The most important message in the history of mankind

References 1992 World Scientists’ Warning to Humanity. http://www.ucsusa.org/about/1992-world-scientists.html#.V1MVmb7feMk (accessed on 2 April 2016) 2020 Visions. Nature (7 January 2010), 463(7): 26-32. Alroy J. 2008. Dynamics of origination and extinction in the marine fossil record. P. Natl. Acad. Sci. USA, 105(1): 11536-11542. Avise J.C. 1994. The Real Message from Biosphere 2. Conserv. Biol. , 8: 327-329. Barnosky A.D., Matzke N., Tomiya S., Wogan G.O.U., Swartz B., Quental T.B., Marshall C., McGuire J.L., Lindsey E

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Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species

.H., Enquist, B.J., et al. (2014) Ecological traits influence the phylogenetic structure of bird species co-occurrences worldwide. Ecology Letters, 17, 811-820. Barnosky, A.D., Matzke, N., Tomiya, S., Wogan, G.O.U., Swartz, B., Quental, T.B., et al. (2011): Has the Earth’s sixth mass extinction already arrived? Nature, 471, 51-57. Böhning-Gaese, K., Halbe, B., Lemoine, N., Oberrath, R. (2000) Factors influencing the clutch size, number of broods and annual fecundity of North American and European land birds. Evolutionary Ecology Research, 2, 823

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