00756nas a2200205   4500008004100000245013700041210006900178300001100247490000800258100002200266700002100288700001600309700002400325700002300349700002100372700002300393700002300416700002100439856009000460       2022                        eng d00aPredation, parasitism, and drought counteract the benefits of patch-burn grazing for the reproductive success of grassland songbirds0 aPredation parasitism and drought counteract the benefits of patc  a1–220 v1241 aVerheijen, B.H.F.1 aErickson, Amy, N1 aBoyle, W.A.1 aLeveritte, Kiana, S1 aSojka, Jennifer, L1 aSpahr, Lauren, A1 aWilliams, Emily, J1 aWinnicki, Sarah, K1 aSandercock, B.K.  uhttps://academic.oup.com/condor/advance-article/doi/10.1093/ornithapp/duab066/650648202824nas a2200253   4500008004100000245008800041210006900129260001600198300000600214490000700220520209500227653002202322653001402344653001302358653002002371653002202391653001902413100002202432700001602454700001802470700001702488700002102505856004402526       2019                        eng d00aEffects of patch-burn grazing on breeding density and territory size of Dickcissels0 aEffects of patchburn grazing on breeding density and territory s  cJan-01-2019  a70 v143 a<p>Ongoing habitat loss and intensification of management of remaining grasslands have led to large population declines of grassland songbirds in North America. As an alternative to intensive and homogeneous use of rangelands, patch-burn grazing creates heterogeneity in vegetative structure across the landscape by restoring the historical interaction of fire and grazing by large ungulates. Patch-burn grazing can increase diversity and abundance of grassland songbirds, but effects on local breeding density and territory size remain unknown, despite both being important in regulating population dynamics of species. Understanding patterns of density and territory size across the landscape is especially important for species experiencing steep declines in breeding habitat, such as grassland songbirds. During a two-year field study, we tested how densities and territory sizes of Dickcissels (Spiza americana), a common grassland songbird, varied among treatment units that were managed with patch-burn grazing or annual burning with or without grazing at a tallgrass prairie site in northeastern Kansas. We found that local densities of male Dickcissels did not differ among management regimes. However, within the patch-burn grazing treatment, densities were highest in the patch that was burned the previous year and lowest in the most recently burned patch. Furthermore, densities of male Dickcissels were lower in 2013 than in 2014, especially in burned and grazed units that had little vegetative structure and nest cover after the drought conditions of the previous two years. Territory size was not affected by rangeland management, while local densities of Dickcissels only explained ~10% of the variation in territory size. Our results show that patch-burn grazing does not negatively impact densities of breeding Dickcissels compared to annual burning and grazing. Moreover, Dickcissel populations might benefit from patch-burn grazing if males preferentially settle in unburned patches with high forb cover, especially during or directly following drought conditions.</p>10adistance sampling10agrassland10asongbird10aSpiza americana10atallgrass prairie10aterritoriality1 aVerheijen, B.H.F.1 aClipp, H.L.1 aBartolo, A.J.1 aJensen, W.E.1 aSandercock, B.K.  uhttp://www.ace-eco.org/vol14/iss1/art7/00471nas a2200121   4500008004100000245009800041210006900139260004400208490002100252100002200273700001500295856003900310       2017                        eng d00aDemographic responses of grassland songbirds to rangeland management in the tallgrass prairie0 aDemographic responses of grassland songbirds to rangeland manage  aManhattan, KS.bKansas State University0 vPhD Dissertation1 aVerheijen, B.H.F.1 aBaer, S.G.  uhttp://hdl.handle.net/2097/35800  02493nas a2200217   4500008004100000245008900041210006900130300001200199490000800211520184400219653003102063653001902094653001802113653001302131653002202144653001102166100002202177700001802199700002102217856003702238       2017                        eng d00aHabitat guild drives variation in apparent survival of landbirds in the Great Plains0 aHabitat guild drives variation in apparent survival of landbirds  a259-2700 v1293 a<p>Many species of songbirds in the United States have shown widespread declines in population numbers during the last five decades. To understand ongoing declines and plan for conservation, researchers need reliable estimates of adult survival and site fidelity. However, variation in adult survival and site fidelity within and among species is substantial and could have consequences for management. Estimates of adult survival are lacking for many bird species and ecoregions, including the Great Plains. In this field study, we used Cormack-Jolly-Seber mark-recapture models to analyze encounter histories of 17 species of birds captured with a 13-year systematic mist-netting effort in northeast Kansas. We estimated annual rates of apparent adult survival (/) and corrected for the probability of capture (p), and tested for effects of sex and breeding habitat guild. We present the first estimates of apparent survival for six species of songbirds, and the first estimates from the Great Plains for 13 species. Apparent survival tended to be higher for males than for females, and we found a sex effect on the probability of capture for one species. Unexpectedly, grassland- and shrubland-breeding species had higher estimates of apparent survival than forest-breeding species. Our results did not support the prevailing viewpoint that birds breeding in dynamic landscapes, such as frequently burned grasslands, should show lower apparent survival than species that breed in woody habitats. We demonstrate that habitat plays an important role in the survival and site fidelity of songbirds, and that regional differences in habitat structure could drive variation in demography. Understanding the drivers of true survival and site fidelity of songbirds will allow region-specific management for species of conservation concern.</p>10aCormack-Jolly-Seber models10ahabitat guilds10asite fidelity10asongbird10atallgrass prairie10awoodpe1 aVerheijen, B.H.F.1 aRintoul, D.A.1 aSandercock, B.K.  uhttps://doi.org/10.1676/16-017.1