@article{sivakoff_morris_aschehoug_hudgens_haddad_2016, title={Habitat restoration alters adult butterfly morphology and potential fecundity through effects on host plant quality}, volume={7}, ISSN={["2150-8925"]}, DOI={10.1002/ecs2.1522}, abstractNote={AbstractConservation strategies for threatened species frequently include habitat restoration, but the success of such recovery efforts has been mixed. When the target is an insect herbivore, restoration efforts have traditionally attempted to increase the abundance of its host plant, but these actions' impact on host plant quality has largely been ignored. Here, we test the impact of two forms of habitat restoration, tree removal and stream damming, on the physical and chemical properties of a wetland sedge and on the adult traits of its larval consumer, a wetland butterfly. Tree removal altered plant physical and chemical traits in a manner largely consistent with reduced host plant quality. Females emerging from these plots had fewer mature oocytes in their ovaries upon emergence, suggesting that tree removal has a negative effect on butterfly potential fecundity. Stream damming did not affect plant traits but forewing length increased more steeply with body mass for females from these plots, indicating that small females from dammed plots have a relatively higher wing loading ratio that likely increases the energetic cost of flight. This idea was supported by results from our subsequent capture–mark–recapture study, where both female and male butterflies were less likely to emigrate from dammed plots. Male dispersal was also affected by restoration, but individual body mass rather than wing allometry mediated this effect. Our results highlight the need to consider restoration's impact on host plant quality, in addition to other aspects of habitat quality, when undertaking habitat restoration for threatened herbivores.}, number={11}, journal={ECOSPHERE}, author={Sivakoff, Frances S. and Morris, William F. and Aschehoug, Erik T. and Hudgens, Brian R. and Haddad, Nick M.}, year={2016}, month={Nov} } @misc{swaddle_francis_barber_cooper_kyba_dominoni_shannon_aschehoug_goodwin_kawahara_et al._2015, title={A framework to assess evolutionary responses to anthropogenic light and sound}, volume={30}, number={9}, journal={Trends in Ecology & Evolution}, author={Swaddle, J. P. and Francis, C. D. and Barber, J. R. and Cooper, C. B. and Kyba, C. C. M. and Dominoni, D. M. and Shannon, G. and Aschehoug, E. and Goodwin, S. E. and Kawahara, A. Y. and et al.}, year={2015}, pages={550–560} } @article{aschehoug_callaway_2015, title={Diversity increases indirect interactions, attenuates the intensity of competition, and promotes coexistence}, volume={186}, number={4}, journal={American Naturalist}, author={Aschehoug, E. T. and Callaway, R. M.}, year={2015}, pages={452–459} } @article{aschehoug_sivakoff_cayton_morris_haddad_2015, title={Habitat restoration affects immature stages of a wetland butterfly through indirect effects on predation}, volume={96}, ISSN={["1939-9170"]}, DOI={10.1890/14-2403.1}, abstractNote={Habitat loss worldwide has led to the widespread use of restoration practices for the recovery of imperiled species. However, recovery success may be hampered by focusing on plant communities, rather than the complex suite of direct and indirect interactions among trophic levels that occur in natural systems. Through a factorial field experiment, we tested the effects of wetland restoration on egg and juvenile survival of a locally rare butterfly, Satyrodes appalachia, via tree removal and damming. Tree removal more than tripled S. appalachia host plant abundance, but neither restoration action directly affected S. appalachia egg and juvenile survival. Instead, we found strong indirect effects of habitat manipulation on S. appalachia egg and juvenile survival that were mediated through predation. The interaction of tree removal and damming significantly decreased predation of S. appalachia eggs relative to each treatment alone. Damming alone had a significant positive indirect effect on the survival of S. appalachia juveniles, likely because increases in standing water reduced predator access. Our results emphasize the need for experiments that evaluate the demographic responses of imperiled species to habitat restoration prior to management action and quantify potential indirect effects mediated through higher trophic levels.}, number={7}, journal={ECOLOGY}, author={Aschehoug, Erik T. and Sivakoff, F. S. and Cayton, H. L. and Morris, W. F. and Haddad, N. M.}, year={2015}, month={Jul}, pages={1761–1767} } @misc{cavieres_brooker_butterfield_cook_kikvidze_lortie_michalet_pugnaire_schob_xiao_et al._2014, title={Facilitative plant interactions and climate simultaneously drive alpine plant diversity}, volume={17}, number={2}, journal={Ecology Letters}, author={Cavieres, L. A. and Brooker, R. W. and Butterfield, B. J. and Cook, B. J. and Kikvidze, Z. and Lortie, C. J. and Michalet, R. and Pugnaire, F. I. and Schob, C. and Xiao, S. and et al.}, year={2014}, pages={193–202} } @article{aschehoug_callaway_newcombe_tharayil_chen_2014, title={Fungal endophyte increases the allelopathic effects of an invasive forb}, volume={175}, number={1}, journal={Oecologia}, author={Aschehoug, E. T. and Callaway, R. M. and Newcombe, G. and Tharayil, N. and Chen, S. Y.}, year={2014}, pages={285–291} } @article{aschehoug_callaway_2014, title={Morphological variability in tree root architecture indirectly affects coexistence among competitors in the understory}, volume={95}, number={7}, journal={Ecology}, author={Aschehoug, E. T. and Callaway, R. M.}, year={2014}, pages={1731–1736} } @article{aschehoug_metlen_callaway_newcombe_2012, title={Fungal endophytes directly increase the competitive effects of an invasive forb}, volume={93}, number={1}, journal={Ecology (Brooklyn, New York, N.Y.)}, author={Aschehoug, E. T. and Metlen, K. L. and Callaway, R. M. and Newcombe, G.}, year={2012}, pages={3–8} } @article{xiao_callaway_newcombe_aschehoug_2012, title={Models of experimental competitive intensities predict home and away differences in invasive impact and the effects of an endophytic mutualist}, volume={180}, number={6}, journal={American Naturalist}, author={Xiao, S. and Callaway, R. M. and Newcombe, G. and Aschehoug, E. T.}, year={2012}, pages={707–718} }