Publications

@article{Schaaf2017,

title = {Black spot infection in juvenile steelhead trout increases with stream temperature in northern California},

author = {Cody J. Schaaf and Suzanne J. Kelson and Sébastien C. Nusslé and Stephanie M. Carlson},

doi = {10.1007/s10641-017-0599-9},

year  = {2017},

date = {2017-04-13},

journal = {Environmental Biology of Fishes},

volume = {100},

number = {6},

pages = {733-744},

abstract = {Climate change will increase water temperature in rivers and streams that provide critical habitat for imperiled species. Warmer water temperatures will influence the intensity and nature of biotic interactions, including parasitism. To better understand the factors influencing a neascus-type parasitic infection known as black spot disease, we examined the relationship between infection rate in juvenile steelhead trout (Oncorhynchus mykiss), abundance of another intermediate host (ramshorn snail, Planorbella trivolvis), and water temperature. We quantified infection patterns of trout at seven sites within the South Fork Eel River in northern California, visiting each site on three different occasions across the summer, and recording water temperature at each site. We also quantified infection patterns in trout captured from two tributaries to the South Fork Eel River. Overall, trout infection rates were highest in sites with the warmest temperatures. The abundance of ramshorn snails was positively related to both water temperature and black spot infection rates in juvenile trout. Both snail abundance and infection rates increased rapidly above a 23 °C daily maximum, suggesting a threshold effect at this temperature. We suggest that warmer temperatures are associated with environmental and biotic conditions that increase black spot disease prevalence in threatened steelhead trout. A comparison of our results with similar data collected from a more northern latitude suggests that salmonids in California may be warm-adapted in terms of their parasite susceptibility.},

keywords = {black spot disease, ecology, ERCZO, parasitism, steelhead trout, water temperature},

pubstate = {published},

tppubtype = {article}

}

@article{Emery2009,

title = {Combining DNA barcoding and morphological analysis to identify specialist floral parasites (Lepidoptera: Coleophoridae: Momphinae: Mompha)},

author = {VJ Emery and J-F Landry and CG Eckert},

url = {http://onlinelibrary.wiley.com/doi/10.1111/j.1755-0998.2009.02647.x/abstract},

doi = {10.1111/j.1755-0998.2009.02647.x},

isbn = {1755-0998},

year  = {2009},

date = {2009-05-01},

journal = {Molecular Ecology Resources},

volume = {9},

pages = {217-223},

abstract = {Close interactions between insects and plants have played a major role in the evolution of both these diverse groups of organisms. Studying these interactions, however, can be difficult because many insects, especially parasites, impinge most strongly on plants during larval stages when they are morphologically difficult to identify, and many belong to diverse groups for which most species remain undescribed. We used DNA barcoding to identify nondescript lepidopteran larvae that regularly parasitize flower buds of the coastal dune endemic Camissoniopsis cheiranthifolia (Onagraceae). We obtained cytochrome oxidase 1 mitochondrial DNA sequences from 201 parasite specimens from across the host geographical range. The Barcode of Life Database Identification System combined with Bayesian analysis grouped all 15 parasite haplotypes in a distinct, monophyletic clade within the genus Mompha (Lepidoptera: Coleophoridae: Momphinae), a group known to be host specialists on plants of the Onagraceae. Species identity and phylogenetic affinities within Mompha could not be confirmed because few barcode sequences exist from this diverse and poorly known group of moths. However, morphological analysis, including detailed dissection of genitalia for a subsample of 23 reared adults and comparison with known species of Mompha, also indicated that the larvae parasitizing C. cheiranthifolia constitute a distinct and undescribed species within this genus. Knowing that floral parasitism of C. cheiranthifolia involves a single, putatively host-specific microlepidopteran greatly facilitates formulating and testing hypotheses concerning how floral parasitism has promoted the evolution of striking floral diversity within this species. More generally, DNA barcoding combined with morphological analysis can greatly hasten identification of problematic specimens and enhance our understanding of the diversity, ecology and evolution of plant–insect interactions.},

keywords = {parasitism},

pubstate = {published},

tppubtype = {article}

}

@article{Perritt1986,

title = {Ectoparasitism on Lizard Populations in Mendocino County, California},

author = {D Perritt},

year  = {1986},

date = {1986-01-01},

urldate = {1986-01-01},

keywords = {Lizards, parasitism},

pubstate = {published},

tppubtype = {article}

}

@article{Phillips1975,

title = {A Study of the Population and Parasites of Blacktail (Odocoileus hemionus columbianus) on the NCCRP},

author = {M Phillips},

year  = {1975},

date = {1975-01-01},

urldate = {1975-01-01},

keywords = {Angelo Coast Range Reserve, parasitism, populations},

pubstate = {published},

tppubtype = {article}

}