Journal: Evolutionary Ecology

Abbreviation

Evol Ecol

Publisher

Springer

Journal Volumes

ISSN

0269-7653
1573-8477

Description

Filters

2003 - 200932010 - 202011
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Publications 1 - 10 of 14
  • The impact of infection on host competition and its relationship to parasite persistence in a Daphnia microparasite system
    Item type: Journal Article
    Refardt, Dominik; Ebert, Dieter (2012)
    Evolutionary Ecology
  • Herbivory and inbreeding affect growth, reproduction, and resistance in the rhizomatous offshoots of Solanum carolinense (Solanaceae)
    Item type: Journal Article
    Nihranz, Chad T.; Kolstrom, Rebecca L.; Kariyat, Rupesh R.; et al. (2019)
    Evolutionary Ecology
    Resource sharing within clonal plant networks can occur via the translocation of water, nutrients, and photoassimilates through rhizomes and stolons. Similar mechanisms may mediate the sharing of information (e.g., about herbivory or other environmental stressors) among ramets via molecular or biochemical signals. The storage of such information in belowground structures could facilitate the transmission of appropriate phenotypic responses across growing seasons in perennial species. However, few previous studies have explored the potential transfer of ecologically relevant information within such networks. This study addresses the effects of foliar herbivory and belowground overwintering on the growth and flowering, physical defenses, and herbivore resistance in the clonally spreading species Solanum carolinense L. (Solanaceae). We used rhizomes from inbred and outbred plants that were repeatedly exposed to feeding damage by Manduca sexta L. (Sphingidae) caterpillars and rhizomes from undamaged control plants. These rhizomes were either planted immediately or exposed to overwintering conditions and allowed to produce new ramets (rhizomatous offshoots). We then assessed offshoot emergence, flowering, physical defense traits, and herbivore performance. Relative to controls, offshoots of herbivore-damaged plants exhibited greater spine and trichome densities, and reduced performance of M. sexta larvae. However, they also emerged and flowered significantly later, and produced fewer flowers than offshoots of undamaged plants. Inbreeding also negatively affected offshoot emergence, flowering, trichome production, and herbivore resistance. These effects of parental herbivory were more pronounced in outbred offshoots, indicating that inbreeding may compromise the trans-seasonal induction of plant defenses. Finally, exposure to overwintering conditions increased trichome production and reduced caterpillar performance on offshoots. Together, these results show that induced defenses can be transmitted through rhizomes and affect offshoot growth, flowering, defensive traits, and herbivore resistance. They also document fitness-related costs associated with defense induction in offshoots and suggest that the transfer of defenses across seasons can be compromised by inbreeding.
  • Cost of resistance and tolerance under competition
    Item type: Journal Article
    Siemens, David H.; Lischke, Heike; Maggiulli, Nicole; et al. (2003)
    Evolutionary Ecology
  • CpG-creating mutations are costly in many human viruses
    Item type: Journal Article
    Caudill, Victoria R.; Regoes, Roland; et al. (2020)
    Evolutionary Ecology
    Mutations can occur throughout the virus genome and may be beneficial, neutral or deleterious. We are interested in mutations that yield a C next to a G, producing CpG sites. CpG sites are rare in eukaryotic and viral genomes. For the eukaryotes, it is thought that CpG sites are rare because they are prone to mutation when methylated. In viruses, we know less about why CpG sites are rare. A previous study in HIV suggested that CpG-creating transition mutations are more costly than similar non-CpG-creating mutations. To determine if this is the case in other viruses, we analyzed the allele frequencies of CpG-creating and non-CpG-creating mutations across various strains, subtypes, and genes of viruses using existing data obtained from Genbank, HIV Databases, and Virus Pathogen Resource. Our results suggest that CpG sites are indeed costly for most viruses. By understanding the cost of CpG sites, we can obtain further insights into the evolution and adaptation of viruses.
  • Comparing single- vs. mixed-genotype infections of Mycosphaerella graminicola on wheat
    Item type: Journal Article
    Schürch, Stéphanie; Roy, Bitty A. (2004)
    Evolutionary Ecology
  • Detection of refuge from enemies through phenological mismatching in multitrophic interactions requires season-wide estimation of host abundance
    Item type: Journal Article
    Kerstes, Niels A.G.; Jong, Peter W. de (2011)
    Evolutionary Ecology
  • An outlier locus relevant in habitat-mediated selection in an alpine plant across independent regional replicates
    Item type: Journal Article
    Buehler, Dominique; Poncet, Bénédicte; Holderegger, Rolf; et al. (2013)
    Evolutionary Ecology
  • Wild yellow dung fly females may not select sperm based on dung pat microclimate but could nevertheless benefit from polyandry
    Item type: Journal Article
    Demont, Marco; Martin, Oliver Y.; Bussiere, Luc F. (2012)
    Evolutionary Ecology
  • Elevated temperature changes female costs and benefits of reproduction
    Item type: Journal Article
    Grazer, Vera M.; Martin, Oliver Y. (2012)
    Evolutionary Ecology
  • Innate versus adaptive immunity in sticklebacks: evidence for trade-offs from a selection experiment
    Item type: Journal Article
    Wegner, K. Mathias; Kalbe, Martin; Reusch, Thorsten B.H. (2007)
    Evolutionary Ecology
Publications 1 - 10 of 14