Helen Aston
Helen Isobel Aston; Aston; Helen Isabel Aston; Helen I. Aston; H. I. Aston; H.I. Aston
* 26. März 1934 – 17. März 2020 †
botanist, ornithologist, botanical collector, editor
Australian botanist, botanical collector, ornithologist and editor (1934-2020)
Wissenschaft ermöglicht durch Exemplardaten
Rock, B. M., and B. H. Daru. 2021. Impediments to Understanding Seagrasses’ Response to Global Change. Frontiers in Marine Science 8. https://doi.org/10.3389/fmars.2021.608867
Uncertainties from sampling biases present challenges to ecologists and evolutionary biologists in understanding species sensitivity to anthropogenic climate change. Here, we synthesize possible impediments that can constrain research to assess present and future seagrass response from climate chang…
Shaw, E. C., R. Fowler, S. Ohadi, M. J. Bayly, R. A. Barrett, J. Tibbits, A. Strand, et al. 2020. Explaining the worldwide distributions of two highly mobile species: Cakile edentula and Cakile maritima. Journal of Biogeography 48: 603–615. https://doi.org/10.1111/jbi.14024
Aim: If we are able to determine the geographic origin of an invasion, as well as its known area of introduction, we can better appreciate the innate environmental tolerance of a species and the strength of selection for adaptation that colonizing populations have undergone. It also enables us to ma…
Brendel, M. R., F. M. Schurr, and C. S. Sheppard. 2020. Inter‐ and intraspecific selection in alien plants: How population growth, functional traits and climate responses change with residence time A. Ordonez [ed.],. Global Ecology and Biogeography 30: 429–442. https://doi.org/10.1111/geb.13228
Aim: When alien species are introduced to new ranges, climate or trait mismatches may initially constrain their population growth. However, inter‐ and intraspecific selection in the new environment should cause population growth rates to increase with residence time. Using a species‐for‐time approac…
Deanna, R., P. Wilf, and M. A. Gandolfo. 2020. New physaloid fruit‐fossil species from early Eocene South America. American Journal of Botany 107: 1749–1762. https://doi.org/10.1002/ajb2.1565
Premise: Solanaceae is a scientifically and economically important angiosperm family with a minimal fossil record and an intriguing early evolutionary history. Here, we report a newly discovered fossil lantern fruit with a suite of features characteristic of Physalideae within Solanaceae. The fossil…
Iqbal, I., A. Shabbir, K. Shabbir, M. Barkworth, F. Bareen, and S. Khan. 2020. Evolvulus nummularius (L.) L. (Convolvulaceae): a new alien plant record for Pakistan. BioInvasions Records 9: 702–711. https://doi.org/10.3391/bir.2020.9.4.04
Evolvulus nummularius (L.) L., a member of the Convolvulaceae, is native to Mexico and South America but nowadays grows around the world in many tropical and subtropical regions. Its presence in Pakistan, where it has become naturalized, is reported here for the first time. It was first discovered i…
Yi, S., C.-P. Jun, K. Jo, H. Lee, M.-S. Kim, S. D. Lee, X. Cao, and J. Lim. 2020. Asynchronous multi-decadal time-scale series of biotic and abiotic responses to precipitation during the last 1300 years. Scientific Reports 10. https://doi.org/10.1038/s41598-020-74994-x
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Cross, A. T., T. A. Krueger, P. M. Gonella, A. S. Robinson, and A. S. Fleischmann. 2020. Conservation of carnivorous plants in the age of extinction. Global Ecology and Conservation 24: e01272. https://doi.org/10.1016/j.gecco.2020.e01272
Carnivorous plants (CPs)—those possessing specific strategies to attract, capture and kill animal prey and obtain nutrition through the absorption of their biomass—are harbingers of anthropogenic degradation and destruction of ecosystems. CPs exhibit highly specialised and often very sensitive ecolo…
Brightly, W. H., S. E. Hartley, C. P. Osborne, K. J. Simpson, and C. A. E. Strömberg. 2020. High silicon concentrations in grasses are linked to environmental conditions and not associated with C 4 photosynthesis. Global Change Biology 26: 7128–7143. https://doi.org/10.1111/gcb.15343
The uptake and deposition of silicon (Si) as silica phytoliths is common among land plants and is associated with a variety of functions. Among these, herbivore defense has received significant attention, particularly with regards to grasses and grasslands. Grasses are well known for their high sili…
de Jesús Hernández-Hernández, M., J. A. Cruz, and C. Castañeda-Posadas. 2020. Paleoclimatic and vegetation reconstruction of the miocene southern Mexico using fossil flowers. Journal of South American Earth Sciences 104: 102827. https://doi.org/10.1016/j.jsames.2020.102827
Concern about the course of the current environmental problems has raised interest in investigating the different scenarios that have taken place in our planet throughout time. To that end, different methodologies have been employed in order to determine the different variables that compose the envi…
van Treuren, R., R. Hoekstra, R. Wehrens, and T. van Hintum. 2020. Effects of climate change on the distribution of crop wild relatives in the Netherlands in relation to conservation status and ecotope variation. Global Ecology and Conservation 23: e01054. https://doi.org/10.1016/j.gecco.2020.e01054
Crop wild relatives (CWR) are wild plant taxa that are genetically related to a cultivated species and are considered rich sources of useful traits for crop improvement. CWR are generally underrepresented in genebanks, while their survival in nature is not guaranteed. Inventories and risk analyses a…