About: Coenonympha tullia is a research topic. Over the lifetime, 28 publications have been published within this topic receiving 661 citations. The topic is also known as: Large heath.
TL;DR: In this article, the authors investigated whether local-scale resources (host and nectar plants, canopy cover) or landscape context, measured at two scales, better explained the densities of four butterfly species, including Coenonympha tullia, Celastrina ladon, Cupido amyntula, and Vanessa cardui.
Abstract: Understanding butterfly response to landscape context can inform conservation management and planning. We tested whether local-scale resources (host and nectar plants, canopy cover) or landscape context, measured at two scales, better explained the densities of four butterfly species. The density of Coenonympha tullia, which has host plants strongly associated with grassland habitats, was positively correlated with the amount of grassland in 0.5- and 1-km radius landscapes and only occurred in forests when they bordered grasslands. For the other species, Celastrina ladon, Cupido amyntula, and Vanessa cardui, local-scale resources better explained butterfly densities, emphasizing the importance of local habitat quality for butterflies. These three species also used host plants that were distributed more heterogeneously within and among habitat types. Our findings demonstrate the importance of host plant spatial distributions when determining the scale at which butterfly density relates to resources, and we recommend that both these distributions and landscape context be evaluated when developing butterfly monitoring programs, managing for species of concern, or modeling potential habitat.
TL;DR: The structure of 21 populations of the Coenonympha tullia group from no more than 20 populations from around the world have been studied.
Abstract: Decisions regarding species status of taxa showing geographic replacement are explicit hypotheses about population structure. The structure of 21 populations of the Coenonympha tullia group from no...
TL;DR: In this study, virgin females of the shorter-lived C. tullia seemed to be in greater urgency to mate and courtships more often resulted in copulation than in C. pamphilus.
TL;DR: The concordance of life history with genetic and morphological variation suggests that differences between unIVoltine and bivoltine populations are maintained by selection.
Abstract: Range expansion by the North American butterfly species Coenonympha tullia is associated with dramatic changes in life history and in genetic and morphological variation. Eight of ten independent, variable loci exhibit step-clines in allele frequency; step-clines also occur in four wing pattern characters. Populations from the old part of the range are univoltine, and have significantly less genetic and morphological variation than populations from the recently colonized ranger, which arc bivoltine. The concordance of life history with genetic and morphological variation suggests that differences between univoltine and bivoltine populations are maintained by selection. Increased electrophoretic variation in the recently colonized range may have arisen by selection on rare variants within the old part of the range.
TL;DR: Because microhabitats have a large effect on the survival rate of young larvae, use of microhab itats in salt marshes as habitat-quality indices is repaired in critical-habitat assessment and reintroduction efforts.
Abstract: Maritime ringlet butterflies (Coenonympha tullia nipisiquit McDunnough) are rare, endangered salt marsh butterflies with larvae that survive periodic tidal submergence. Only six disjunct populations are known to exist. First-instar larvae were released and monitored in seven microhabitats within a salt marsh in Bathurst, New Brunswick, Canada. From resighting data, microhabitat-specific daily death rates were estimated with maximum likelihood. The survival of the larvae released in groups was compared by calculating minimum number of larvae known to be alive (MNKA). Death rates were low in microhabitats with the larval host plant, salt meadow cordgrass (Spartina patens (Aiton) Muhl.) and the major nectar source, sea lavender (Limonium carolinianum (Walter) Britton), a habi- tat with a moderate frequency of flooding. Because microhabitats have a large effect on the survival rate of young larvae, use of microhabitat profiles in salt marshes as habitat-quality indices is recom- mended in critical-habitat assessment and reintroduction efforts.