| 1. |
- Mouyen, Maxime, 1982, et al.
(författare)
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Expected temporal absolute gravity change across the Taiwanese Orogen, a modeling approach
- 2009
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Ingår i: Journal of Geodynamics. - : Elsevier BV. - 0264-3707. ; 48:3-5
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Tidskriftsartikel (refereegranskat)abstract
- The island of Taiwan is located on the convergent boundary between the Philippine Sea plate and the Chinese continental margin. It offers very active mountain building and collapsing processes well illustrated by the rugged topography, rapid uplift and denudation, young tectonic landforms, active faulting and numerous earthquakes. In this paper, using simple models, we have estimated vertical movements and associated absolute gravity variations which can be expected along a profile crossing the southern part of the island and probably suffering the highest rates of rising. The two different tectonic styles proposed for the island, thin-skinned and thick-skinned, were taken into account. Horizontal and vertical movements were modeled by an elastic deformation code. Gravity variations due to these deformations are then modeled at a second step. They are dominated by plate and free-air effects, i.e. elevation of the topography, with several μGal yr-1. By comparison, gravity changes generated by mass transfers are weak: maximum 0.1 μGal yr-1 with the thin-skinned tectonic and 0.3 μGal yr-1 with the thick-skinned tectonic. Though elastic rheology has limitations, this modeling offers interesting results on what gravity signal can be expected from the AGTO project (Absolute Gravity in the Taiwanese Orogen), which proposes to study the dynamic of these mountain ranges using absolute gravimetry (AG) and also including relative gravimetry (RG) and GPS measurements.
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| 2. |
- Phillimore, Albert B., et al.
(författare)
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Dissecting the contributions of plasticity and local adaptation to the phenology of a butterfly and its host plants
- 2012
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Ingår i: American Naturalist. - : University of Chicago Press. - 0003-0147 .- 1537-5323. ; 180:5, s. 655-670
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Tidskriftsartikel (refereegranskat)abstract
- Phenology affects the abiotic and biotic conditions that an organism encounters and, consequently, its fitness. For populations of high-latitude species, spring phenology often occurs earlier in warmer years and regions. Here we apply a novel approach, a comparison of slope of phenology on temperature over space versus over time, to identify the relative roles of plasticity and local adaptation in generating spatial phenological variation in three interacting species, a butterfly, Anthocharis cardamines, and its two host plants, Cardamine pratensis and Alliaria petiolata. All three species overlap in the time window over which mean temperatures best predict variation in phenology, and we find little evidence that a day length requirement causes the sensitive time window to be delayed as latitude increases. The focal species all show pronounced temperature-mediated phenological plasticity of similar magnitude. While we find no evidence for local adaptation in the flowering times of the plants, geographic variation in the phenology of the butterfly is consistent with countergradient local adaptation. The butterfly's phenology appears to be better predicted by temperature than it is by the flowering times of either host plant, and we find no evidence that coevolution has generated geographic variation in adaptive phenological plasticity.
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| 3. |
- Raviglione, Mario C., et al.
(författare)
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New information on Trichophiala devylderi Aurivillius, 1879. Full description of both sexes, genetic study and lectotype designation (Lepidoptera, Eupterotidae)
- 2022
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Ingår i: Revue suisse de zoologie. - : Museum d’Histoire naturelle of Geneva. - 0035-418X. ; 129:1, s. 283-296
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Tidskriftsartikel (refereegranskat)abstract
- Described from Namibia, Trichophiala devylderi Aurivillius, 1879 is a species for which, apart from the original description of female “types”, little is known. Building upon recent observations in the field, investigations in variousmuseums that preserve specimens, and a review of the literature, we describe for the first time the habitat, the knowndistribution, the morphology of both sexes including the presence of two phenotypes, and the genitalia of both male andfemale. We also provide genetic information from several specimens that reveal little variation in the standard animalDNA barcode. Finally, we designate a lectotype among the three specimens preserved at the Naturhistoriska Riksmuseet,Stockholm, Sweden
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