e-journal

Does source population size affect performance in new environments?

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Small populations are predicted to perform poorly relative to large populations when experiencing environmental change. To explore this prediction in nature,data from reciprocal transplant, common garden, and translocation studies were
compared meta-analytically. We contrasted changes in performance resulting from transplantation to new environments among individuals originating from different sized source populations from plants and salmonids. We then evaluated
the effect of source population size on performance in natural common garden environments and the relationship between population size and habitat quality. In ‘home-away’ contrasts, large populations exhibited reduced performance in
new environments. In common gardens, the effect of source population size on performance was inconsistent across life-history stages (LHS) and environments. When transplanted to the same set of new environments, small populations either
performed equally well or better than large populations, depending on life stage. Conversely, large populations outperformed small populations within native environments, but only at later life stages. Population size was not associated with habitat quality. Several factors might explain the negative association between source population size and performance in new environments: (i) stronger local adaptation in large populations and antagonistic pleiotropy, (ii) the maintenance of genetic variation in small populations, and (iii) potential environmental differences
between large and small populations.

Keywords
adaptation, conservation biology, metaanalysis,natural selection and contemporary evolution, population dynamics, population size, reciprocal transplant, translocation

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Informasi Detail

Judul Seri

Source population size and new environments

No. Panggil

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Penerbit

: Authors.., 2014

Deskripsi Fisik

Source population size and new environments 7 (2014) 871–882

Bahasa

English

ISBN/ISSN

doi:10.1111/eva.1218

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

SOSIAL

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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