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- Chapman, T, et al.
(författare)
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Sexual conflict
- 2003
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Ingår i: Trends in Ecology & Evolution. - 0169-5347 .- 1872-8383. ; 18, s. 41-47
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Tidskriftsartikel (refereegranskat)
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5. |
- GIBSON, RM, et al.
(författare)
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COPYING AND SEXUAL SELECTION
- 1992
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Ingår i: Trends in Ecology & Evolution. - 0169-5347 .- 1872-8383. ; 7:7, s. 229-232
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Tidskriftsartikel (refereegranskat)
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6. |
- Hoffmann, AA, et al.
(författare)
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Heritable variation and evolution under favourable and unfavourable conditions
- 1999
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Ingår i: Trends in Ecology & Evolution. - 0169-5347 .- 1872-8383. ; 14:3, s. 96-101
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Recension (refereegranskat)abstract
- Genetic variability in quantitative traits can change as a direct response to the environmental conditions in which they are expressed. Consequently, similar selection in different environments might not be equally effective in leading to adaptation. Several hypotheses, including recent ones that focus on the historical impact of selection on populations, predict that the expression of genetic variation will increase in unfavourable conditions. However, other hypotheses lead to the opposite prediction. Although a consensus is unlikely, recent Drosophila and bird studies suggest consistent trends for morphological traits under particular conditions.
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8. |
- Vincent, Amanda, et al.
(författare)
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Pipefishes and seahorses : are they all sex-role reversed?
- 1992
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Ingår i: Trends in Ecology & Evolution. - 0169-5347 .- 1872-8383. ; 7:7, s. 237-241
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Tidskriftsartikel (refereegranskat)abstract
- The male pregnancy of pipefishes and seahorses has led to the inference that females compete most intensely for access to mates, because males limit female reproduction. However, recent work has shown that in different species either sex may be the predominant competitor for mates. In this family, there is an apparent association between the mating pattern and the sex roles: polygamous species show reversed sex roles whereas monogamous species exhibit 'conventional' sex roles. These studies emphasize that sex role reversal is not synonymous with male parental care.
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9. |
- Bommarco, Riccardo
(författare)
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Ecological Intensification: Bridging the Gap between Science and Practice
- 2019
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Ingår i: Trends in ecology & evolution. - : Elsevier BV. - 0169-5347 .- 1872-8383. ; 34, s. 154-166
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Forskningsöversikt (refereegranskat)abstract
- There is worldwide concern about the environmental costs of conventional intensification of agriculture. Growing evidence suggests that ecological intensification of mainstream farming can safeguard food production, with accompanying environmental benefits; however, the approach is rarely adopted by farmers. Our review of the evidence for replacing external inputs with ecosystem services shows that scientists tend to focus on processes (e.g., pollination) rather than outcomes (e.g., profits), and express benefits at spatio-temporal scales that are not always relevant to farmers. This results in mismatches in perceived benefits of ecological intensification between scientists and farmers, which hinders its uptake. We provide recommendations for overcoming these mismatches and highlight important additional factors driving uptake of nature based management practices, such as social acceptability of farming.
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- Abbott, Jessica K., et al.
(författare)
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Obtaining snapshots of genetic variation using hemiclonal analysis
- 2011
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Ingår i: Trends in Ecology & Evolution. - : Elsevier BV. - 0169-5347 .- 1872-8383. ; 26:7, s. 359-368
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Forskningsöversikt (refereegranskat)abstract
- Hemiclones are naturally occurring or artificially produced individuals that share a single specific genetic haplotype. Natural hemiclones are produced via hybridization between two closely related species, whereas hemiclonal analysis in Drosophila is carried out in the laboratory via crosses with artificially created 'clone-generator' females with a specific genetic make-up. Hemiclonal analysis in Drosophila has been applied successfully to date to obtain measures of standing genetic variation for numerous traits. Here, we review the current hemiclonal literature and suggest future directions for hemiclonal research, including its application in molecular and genomic studies, and the adaptation of natural hemiclonal systems to carry out Drosophila-type studies of standing genetic variation.
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