https://fletcherhalliday.com/diversity-equity-and-inclusion/2022-01-18T18:49:56+00:00weekly0.6https://fletcherhalliday.com/publications/2022-01-18T18:48:12+00:00weekly0.6https://fletcherhalliday.com/research/https://fletcherhalliday.com/wp-content/uploads/2020/11/calanda-e1605802195682.jpgCalandaThe Calanda in Graubünden, CH. Image credit: Mikko Jalohttps://fletcherhalliday.com/wp-content/uploads/2020/11/disease-triangle-3.jpgDisease triangle 3https://fletcherhalliday.com/wp-content/uploads/2020/11/disease-triangle-2.jpgDisease triangle 2https://fletcherhalliday.com/wp-content/uploads/2020/11/disease-triangle-1-e1605801771908.jpgDisease triangle 1The “disease triangle” suggests that a combination of host, parasite, and environmental factors will influence whether disease is observed in a given location. I conceptualize the disease triangle as consisting of three overlapping or interacting factors. How global change influences disease risk might therefore depend on how these factors overlap.https://fletcherhalliday.com/wp-content/uploads/2018/11/conceptual-figure-v2-e1542735486498.jpgConceptual figure v2Interactions among parasites are determined by large-scale spatial and temporal processes like parasite phenology, and small-scale processes like the host immune response to infection. These interactions, which occur within host plants, can alter parasite epidemics, which occur across host populations.2021-11-04T22:22:35+00:00weekly0.6https://fletcherhalliday.com/2019/06/04/priority-effects/https://fletcherhalliday.com/wp-content/uploads/2019/05/plot_with_inset_no_annotation.jpgplot_with_inset_no_annotationFig 3. Priority effects were more commonly observed when late-arriving parasites were host specialists, supporting hypothesis two. Among specialists, more closely related parasites tended to experience more competition. Black circles are model estimated means, error bars are 95% confidence intervals; colored points are estimates from each individual pairwise combination of studies, with size corresponding to the number of samples per host individual. Blue indicates significant facilitation, red indicates significant antagonism, and grey indicates insufficient evidence for significant priority effect. The inset shows the model estimated probability of a priority effect on the y-axis as a function of host specificity.https://fletcherhalliday.com/wp-content/uploads/2019/05/hypothesis_1_3_short.jpghypothesis_1_3_shortFig 2. Priority effects were somewhat more commonly observed among parasites of the same type, infection site, or transmission mode (p0.05 when unweighted), lending some support to hypothesis one. In contrast with hypothesis one, priority effects were no more commonly observed when early arriving species had greater or smaller impacts on their hosts, though weighted regression indicates that moderately viulent parasites may exhibit fewer priority effects than low- or highly virulent parasites.https://fletcherhalliday.com/wp-content/uploads/2019/05/eeid-poster-27-may-2019-2-e1559030909841.jpgEEID poster 27 May 2019https://fletcherhalliday.com/wp-content/uploads/2019/05/eeid-poster-27-may-2019-1.jpgEEID poster 27 May 2019https://fletcherhalliday.com/wp-content/uploads/2019/05/eeid-poster-27-may-2019.jpgEEID poster 27 May 20192019-06-06T20:00:57+00:00monthlyhttps://fletcherhalliday.com/contact-3/2018-10-18T15:40:02+00:00weekly0.6https://fletcherhalliday.com/contact/https://fletcherhalliday.com/wp-content/uploads/2018/10/person-smartphone-office-table.jpegPlaceholder Image2018-10-18T15:38:28+00:00weekly0.6https://fletcherhalliday.com/contact-2/2018-10-18T15:36:01+00:00weekly0.6https://fletcherhalliday.com/home/2018-10-18T13:09:04+00:00weekly0.6https://fletcherhalliday.com/blog/2018-10-18T12:45:00+00:00weekly0.6https://fletcherhalliday.com/contact-me/2017-06-30T20:18:14+00:00weekly0.6https://fletcherhalliday.com/blog-posts/2017-06-29T17:33:43+00:00weekly0.6https://fletcherhalliday.com/cv/2017-06-29T15:29:48+00:00weekly0.6https://fletcherhalliday.com/2016/05/20/even-deleting-the-chestnut-blight-wont-necessarily-bring-the-chestnut-tree-back/2016-10-04T18:34:04+00:00monthlyhttps://fletcherhalliday.com/sample-page/2015-08-21T19:29:14+00:00weekly0.6https://fletcherhalliday.com/2015/02/12/advice-to-prospective-graduate-students/2015-02-27T20:43:01+00:00monthlyhttps://fletcherhalliday.com/2015/01/28/an-homage-to-the-writing-style-of-dr-peter-adler-or-how-to-write-good-science-well/2015-02-12T19:31:41+00:00monthlyhttps://fletcherhalliday.com/2014/07/22/updates-from-the-field-the-most-abundant-species-that-we-know-nothing-about/2014-08-06T04:15:51+00:00monthlyhttps://fletcherhalliday.com/2014/03/11/diverse-introspectives-with-tony-ives/2014-09-05T14:05:18+00:00monthlyhttps://fletcherhalliday.com/2013/10/30/biodiversity-challenge-biodiversity-hidden-in-plain-view/2013-10-30T11:00:44+00:00monthlyhttps://fletcherhalliday.com/2013/10/23/biodiversity-challenge/2013-10-23T23:26:05+00:00monthlyhttps://fletcherhalliday.com/2013/08/19/following-int13-on-twitter-updated/2013-08-19T19:26:32+00:00monthlyhttps://fletcherhalliday.com/2013/07/16/parasite-biodiversity-a-missing-dimension/2013-07-17T13:31:32+00:00monthlyhttps://fletcherhalliday.com/2013/05/28/on-making-biodiversity-research/2013-06-08T15:14:11+00:00monthlyhttps://fletcherhalliday.com/2013/04/16/tradeoffs-correlated-traits-and-functional-diversity/2013-04-16T19:44:49+00:00monthlyhttps://fletcherhalliday.com/2013/02/26/a-synthesis-of-prevailing-theories-on-mechanisms-that-drive-the-relationship-between-host-diversity-and-disease-risk/2013-03-04T17:21:54+00:00monthlyhttps://fletcherhalliday.com/2013/02/07/why-students-should-read-blogs/2013-05-28T03:35:50+00:00monthlyhttps://fletcherhalliday.com/2013/02/02/ecology-simplified/2013-02-12T18:59:52+00:00monthlyhttps://fletcherhalliday.com/2013/01/30/is-blogging-effective-at-communicating-biodiversity-research/2013-02-09T06:54:43+00:00monthlyhttps://fletcherhalliday.comdaily1.02022-01-18T18:49:56+00:00