Download or read book The Role of Adult Resources in the Population Biology of Checkerspot Butterflies of the Genus Euphydryas written by Dennis D. Murphy and published by . This book was released on 1981 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of Research on the Lepidoptera written by and published by . This book was released on 1988 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Wings of Checkerspots written by Paul R. Ehrlich and published by Oxford University Press. This book was released on 2004-03-18 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hanski, a leading thinker in metapopulation ecology, studies checkerspot butterfly populations in Finland. Ehrlich, one of the leading ecologists and conservation biologist, investigates checkerspot butterfly populations in California. This book reports on and synthsizes the major long-term research of both workers' careers on the population biology of checkerspot butterflies.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1982 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Commencement written by Stanford University and published by . This book was released on 1978 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Butterflies and Climate Change written by Roger L. H. Dennis and published by . This book was released on 1993 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Reproductive Biology of the Checker spot Butterfly Euphydryas Editha written by Patricia Ann Labine and published by . This book was released on 1966 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preference and Performance in a Population of Checkerspot Butterflies with Known Diet History written by Nur Hasanah and published by . This book was released on 2010 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a relationship between maternal preference and offspring performance in a population of the butterfly Euphydryas editha that used two host plants, Pedicularis semibarbata and Collinsia torreyi from 1979 to 2001, but now no longer uses Collinsia. In the light of the known history of diet change in this butterfly population, it is not surprising that maternal oviposition preference was variable. Although the diet of the butterflies that evolved rapidly in the 1980s is no longer changing, I still discovered some females with a chemical preference for Collinsia. This seems to be a legacy of recent anthropogenic diet evolution. The evolution of host preference of females in Rabbit Meadow has not finished yet. Variation of offspring weight and survival were measured and showed a complex relationship with adult preference. Although quite a few adults strongly rejected Collinsia, their offspring grew well on this host, and there was no significant trend for the offspring of strongly Pedicularis-preferring butterflies to perform more poorly on Collinsia.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1981 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Environmental Variation in the Dynamics of an Insect plant Interaction written by Jessica Jane Hellmann and published by . This book was released on 2000 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index Biological sciences A E written by and published by . This book was released on 1984 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Differentiation in Euphydryas Butterflies written by John Frederick Baughman and published by . This book was released on 1990 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Science of Ecology written by Paul R. Ehrlich and published by Prentice Hall. This book was released on 1987 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Complex Effects of Nitrogen Pollution and Grazing on Nectar Resources of the Adult Bay Checkerspot Butterfly Euphydryas Editha Bayensis written by Nidhi Jain and published by . This book was released on 2015 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent anthropogenic increases in atmospheric nitrogen due to urbanization and combustion have had many adverse effects on natural systems, including loss of biodiversity, especially in sensitive habitats. One such region is the serpentine ecosystem of Coyote Ridge in San Jose, CA, the last refuge for recurring populations of the federally threatened Bay Checkerspot Butterfly (BCB) (Euphydryas editha bayensis). Increases in non-native grass cover and decreases in native forb cover (including cover of the BCB’s native larval host plants) have been attributed to the fertilizing effects of increased atmospheric nitrogen deposition. To counteract this effect, grazing has been implemented as a grassland management strategy. However, the effects of nitrogen enhancement and grazing, and the combined effects on shoulder-season nectar resources, have not been previously studied. This research aimed to fill this gap by utilizing a split block experimental setting at Coyote Ridge with four treatments, comprising of fertilized, unfertilized, grazed and ungrazed plots. According to the study results, nitrogen enhancement tended to reduce the abundance of nectar resources in both grazed and ungrazed plots. It also tended to reduce native vegetation in the grazed plots, while potentially increasing its prevalence in the ungrazed plots. These findings suggest that the effects of grazing and nitrogen on serpentine ecosystems are complex, highlighting the need to reduce nitrogen deposition.
Download or read book The Metapopulation Dynamics of the Bay Checkerspot Butterfly Euphydryas Editha Bayensis written by Susan Patricia Harrison and published by . This book was released on 1989 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Butterflies of British Columbia written by Jon Shepard and published by UBC Press. This book was released on 2011-11-01 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Butterflies are found everywhere in British Columbia. Written for butterfly watchers, butterfly gardeners, naturalists, and biologists, Butterflies of British Columbia will provide years of enjoyment for the butterfly enthusiast. The Butterflies of British Columbia � provides the most complete coverage of species and subspecies of any North American regional or continental butterfly book � covers 187 species and 264 subspecies of butterflies, as well as 9 additional hypothetical species � provides descriptions of identifying features, immature stages, larval foodplants, biology and life history, range and habitat, and conservation status for each species � describes 11 new subspecies � includes introductory chapters covering the history, zoogeography, conservation, morphology, ecology, and biology of butterflies in BC and adjacent areas � is lavishly illustrated with over 1,200 colour photographs and over 200 distribution maps � includes a glossary of butterfly terms and a bibliography of over 750 citations.
