Strong reproductive barriers in a narrow hybrid zone of West

Strong reproductive barriers in a narrow hybrid zone of West-Mediterranean green toads (Bufo viridis subgroup) with Plio-Pleistocene divergence pptx

... suggesting absence of natural hybridization in taxa of that age. A few major results on intrinsic reproductive isolation in anurans come from artificial hybridization experiments. Sasa et al. [3] ... this article as: Colliard et al.: Strong reproductive barriers in a narrow hybrid zone of West-Mediterranean green toads (Bufo viridis subgroup) with...

Ngày tải lên : 05/03/2014, 17:20

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Variation in Helper Type Affects Group Stability and Reproductive Decisions in a Cooperative Breeder doc

... costs and beneﬁts of staying within the natal group and engaging in helping activities, versus leaving the group and refraining from helping, and therefore may explain the extent of cooperative ... (‘digging alone’). In the evening of the same day, a large male and female was added, who accepted the focal individual as a subordinate in each case successfully. During this perio...

Ngày tải lên : 28/03/2014, 16:20

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Reproductive Senescence in a Long-Lived Seabird: Rates of Decline in Late-Life Performance Are Associated with Varying Costs of Early Reproduction pot

... reduction in breeding performance in the years leading up to the death of an individual. The use of YBD as an alternative to age or age proxies has two main advantages, since it (1) allows for ... were favorable, for example, where food was relatively abundant and easily available. For each individual, annual mean values of colony breeding success were averaged across the ﬁrst h...

Ngày tải lên : 28/03/2014, 16:20

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Tài liệu USB in a Nutshell - Making Sense of the USB Standard ppt

... endpoint has had an error and it's halt bit has been set, it returns a STALL. IN DATA x NAK STALL ACK OUT DATA x ACK NAK STALL Token Phase Data Phase Handshake Phase USB in a Nutshell Page ... type of transaction to follow, data packets contain the payload, handshake packets are used for acknowledging data or reporting errors and start of frame packets indicate the start of...

Ngày tải lên : 13/12/2013, 00:15

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Tài liệu Báo cáo khoa học: "Liars and Saviors in a Sentiment Annotated Corpus of Comments to Political debates" pdf

... Linguistics Liars and Saviors in a Sentiment Annotated Corpus of Comments to Political debates Paula Carvalho Luís Sarmento University of Lisbon Labs Sapo UP & University of Porto Faculty of ... and negative opinions? Finally, approaches to opi- nion mining have implicitly assumed that the problem at stake is a balanced classification problem, based on the gene...

Ngày tải lên : 20/02/2014, 05:20

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Báo cáo Y học: Defective translocation of a signal sequence mutant in a prlA4 suppressor strain of Escherichia coli doc

... it has been proposed that prlA mutations cause a general relaxation of the export apparatus [21,24] rather than a speciﬁc change that results in bypassing a proofreading mechanism of the Sec machinery ... Dynamics) after scanning of the autoradiogram. In vitro transcription, translation, targeting and cross-linking analysis To generate truncated mRNA, plasmids encoding truncat...

Ngày tải lên : 08/03/2014, 09:20

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Geochemistry of inorganic arsenic and selenium in a tropical soil effect of reaction time, ph, and comp

... for the Examination of Water and Wastewater. American Public Health Association, NW, Washington, DC. Carbonell Barrachina, A. A., Burl  o Carbonell, F.M., Mataix Beneyto, J.J., 1996. Kinetics of arsenite ... Se(IV) adsorption increased signiﬁ- cantly with increased adsorbate loading initially and then increased gradually when higher adsorbate loadings were added due to surface sites s...

Ngày tải lên : 16/03/2014, 00:25

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Báo cáo khoa học: "Multiple Interpreters in a Principle-Based Model of Sentence Processing" potx

... princi- ples and parameters paradigm of syntactic theory [1], [2], which holds that a number of representations are involved in determining a well-formed analysis of an utterance. This, in ... contained within it (such as the syntactic and semantic pro- cessors), apply maximally to any input, thereby con- structing a maximal, partial interpretation for a given partia...

Ngày tải lên : 18/03/2014, 02:20

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Protecting Children''''s Health In A Changing Environment - Report Of The Fifth Ministerial Conference On Environment And Health.pdf potx

... States Albania Andorra Armenia Austria Azerbaijan Belarus Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Georgia Germany Greece Hungary Iceland Ireland Israel Italy Kazakhstan Kyrgyzstan Latvia Lithuania Luxembourg Malta Monaco Montenegro Netherlands Norway Poland Portugal Republic ... Republic Denmark Estonia Finland France Georgia German...

Ngày tải lên : 22/03/2014, 16:22

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