This article explicitly connects a growing body of specific literature, the political ecology of conservation, to some of the often overlooked, main conceptual components emerging from political anthropology and geography (sources of legitimacy, governmentality, territoriality, or state making), political economy (commoditization, market integration, niche markets, or gentrification), and cultural studies of the environment (cultural transformations of nature, cultural heritage and landscapes, taste, and identity politics). All these concepts and literary fields are at the basis of the contemporary social analysis of conservation policies and their consequences. The article also provides an updated large bibliography on the concepts potentially relevant to a political ecology of conservation.Key Words: conservation, governmentality, taste, nature, commoditization of nature, territoriality

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In this Letter we analyse, in the context of the general 2-Higgs Doublet Model, the structure of the Yukawa matrices, Y q 1,2 , by assuming a four-zero texture ansatz for their definition. In this framework, we obtain compact expressions for Y q 1,2 , which are reduced to the Cheng and Sher ansatz with the difference that they are obtained naturally as a direct consequence of the invariants of the fermion mass matrices. Furthermore, in order to avoid large flavour violating effects coming from charged Higgs exchange, we consider the main flavour constraints on the off-diagonal terms of Yukawa texture χ q j kl (k = l). We perform a χ 2 -fit based on current experimental data on the quark masses and the Cabibbo-KobayashiMaskawa mixing matrix V CKM . Hence, we obtain the allowed ranges for the parameters Y q 1,2 at 1σ for several values of tan β. The results are in complete agreement with the bounds obtained taking into account constraints on Flavour Changing Neutral Currents reported in the literature.

Minimal S 3 invariant Higgs potential with real soft S 3 breaking masses is investigated. It is required that without having a problem with triviality, all physical Higgs bosons, except one neutral one, become heavy > ∼ 10 TeV in order to sufficiently suppress flavor changing neutral currents. There exist three nonequivalent soft mass terms that can be characterized according to their discrete symmetries, and the one which breaks S 3 completely. The S ′ 2 invariant vacuum expectation values (VEVs) of the Higgs fields are the most economic VEVs in the sense that the freedom of VEVs can be completely absorbed into the Yukawa couplings so that it is possible to derive, without referring to the details of the VEVs, the most general form for the fermion mass matrices in minimal S 3 extension of the standard model. We find that except for the completely broken case of the soft terms, the S ′ 2 invariant VEVs are unique VEVs that satisfy the requirement of heavy Higgs bosons. It is found that they also correspond to a local minimum in the completely broken case.

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We study the properties of the Higgs sector in an extended SUSY model that includes a complex (Y=0) Higgs triplet. In particular, we evaluate the Higgs masses and their couplings to gauge bosons, including the leading radiative corrections using the one-loop effective potential. The mass difference between the CP-even and CP-odd neutral scalars, which can mimic a CP-violating Higgs signature of the MSSM, is also studied. Then, we study the range of parameters that are bounded from the LEP2 search for neutral Higgs bosons, as well as the corresponding region where at least one of the neutral CP-even Higgs boson can be detected at a future e+e- collider with a c.m. energy of 500 GeV.