Dispersal and Survival of Red-Shouldered Hawks Banded in Suburban Southern Ohio, 1996–20181

Dykstra, Cheryl R.; Hays, Jeffrey L.; Simon, Melinda M.; Wegman, Ann R.; Williams, Kelly A.; Dykstra, Laura R.

doi:10.3356/jrr-19-15

Cited by 11 publications

(27 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found two studies of natal dispersal in B. lineatus that reported the standard error of mean dispersal distance and sample size for a total of three populations (Bloom, Scott, Papp, Thomas, & Kidd, 2011;Dykstra et al, 2004); these yielded estimates of root-meansquare natal dispersal distances of 22.9, 112.4, and 185.6 km; we used the median in further analyses. For S. varia, Livezey (2009) analyzed some band recovery data consistent with a root-mean-square total dispersal distance of 69 km.…”

Section: Interspecific Comparisonsmentioning

confidence: 99%

Phylogeography and species limits in the red‐shouldered hawk (Buteo lineatus): Characterization of the Northern Florida Suture Zone in birds

Barrowclough

Groth

Mauck

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

The North American red‐shouldered hawk, Buteo lineatus, is comprised of two widely allopatric eastern and western populations with an additional well‐marked subspecies in the Florida peninsula. The two eastern populations meet in northern Florida, the location of a well‐known suture zone in many nonavian organisms. We sequenced the complete mitochondrial ND2 gene and two nuclear introns to investigate its genetic population structure and species status. No mitochondrial haplotypes were shared between the eastern and western populations, and genetic variance among 14 populations was 0.42; almost all of this (0.40) was distributed among the three regions. A clade of haplotypes very common in the Florida peninsula decreased in frequency elsewhere and, when modeled as a hybrid zone, had an estimated width of 1,158 km with a center near Ocala, FL. Ecological niche modeling suggests the western, eastern, and Florida peninsula populations were geographically isolated during the last glacial maximum. We consider these to represent three phylogenetic species. A coalescent analysis incorporating incomplete lineage sorting and gene tree uncertainty also suggested the divergence between the western and eastern populations is consistent with species‐level divergence. With the addition of this hawk, four avian species are now known to hybridize along the Gulf Coast of the United States in or near the Northern Florida Suture Zone. The widths of these avian zones vary substantially (176–1,158 km) and appear to reflect magnitude of gene flow, rather than extent of genetic differentiation. None of these birds was suggested as possible exemplars in the original description of the suture zone. Of the six species that were so identified, three have been surveyed to date, but none of those was found to be genetically differentiated.

show abstract

Section: Interspecific Comparisonsmentioning

confidence: 99%

Phylogeography and species limits in the red‐shouldered hawk (Buteo lineatus): Characterization of the Northern Florida Suture Zone in birds

Barrowclough

Groth

Mauck

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…In the course of an investigation of Red‐shouldered Hawk dispersal and survival (Dykstra et al . 2019), we searched for nests of this species in the urban and rural study areas of southern Ohio. Because Red‐shouldered Hawks in southern Ohio are resident year‐round (Dykstra et al .…”

Section: Methodsmentioning

confidence: 99%

“…Because Red‐shouldered Hawks in southern Ohio are resident year‐round (Dykstra et al . 2001, 2004) and begin courtship activities in mid‐February (with an average laying date of 22 March and an average hatching date of 23 April; Dykstra et al . 2004), we searched for nests between mid‐February and mid‐April, 1997–2016.…”

Section: Methodsmentioning

confidence: 99%

“…2001, 2004) and begin courtship activities in mid‐February (with an average laying date of 22 March and an average hatching date of 23 April; Dykstra et al . 2004), we searched for nests between mid‐February and mid‐April, 1997–2016. We used a variety of techniques to find nests, including searching where Hawks responded to call‐playbacks, searching historical nesting territories (J.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, teasing apart the effects of both weather and habitat on reproductive rates of raptors requires a long‐term dataset, as exists for Red‐shouldered Hawks Buteo lineatus nesting in southern Ohio, USA (Dykstra et al . 2019).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Habitat and weather conditions influence reproductive rates of suburban and rural Red‐shouldered HawksButeo lineatus

Dykstra¹,

Hays²,

Simon³

et al. 2020

Ibis

Self Cite

View full text Add to dashboard Cite

Both habitat and weather can strongly influence reproductive rates of birds. We measured reproductive rates of suburban and rural Red‐shouldered Hawks Buteo lineatus in southern Ohio, USA, from 1997 to 2016, and then tested how weather conditions and habitat in the areas surrounding the nest‐sites were related to two measures of reproductive rate. Reproductive rates of Red‐shouldered Hawks did not differ between the suburban and rural study areas, and were relatively stable from year to year. Suburban Red‐shouldered Hawks produced 2736 young in 1773 nesting attempts (i.e. nest with eggs) at 302 territories (1.54 young per nesting attempt), and rural‐nesting Hawks produced 996 young in 640 nesting attempts at 108 territories (1.56 young per nesting attempt). Annual nesting success averaged 58.9 ± 1.1% for suburban birds and 58.9 ± 2.1% for rural birds. Several factors influenced Red‐shouldered Hawk reproductive rates, measured as either the number of young per nesting attempt or the percentage of nesting attempts that were successful. Higher air temperatures during May (the nestling period) and increasing amounts of coniferous forest were associated with higher reproductive rates, whereas increasing April air temperatures and increasing amount of grassland cover had the opposite effect. Land cover variables associated with suburban landscapes, such as the amount of residential development, did not influence the number of young per nesting attempt or nesting success, suggesting that Red‐shouldered Hawks are welladapted to human‐dominated landscapes in southern Ohio. Our study also illustrates the value of long‐term datasets for improving our understanding of factors that affect raptors’ demographic parameters.

show abstract

‘Dead birds flying': can north American rehabilitated raptors released into the wild mitigate anthropogenic mortality?

Hagen,

Goodell,

Millsap

et al. 2024

Wildlife Biology

View full text Add to dashboard Cite

As the human footprint expands to meet societal energy needs, as do the impacts to wildlife. Raptors in particular are highly susceptible to anthropogenic caused mortality. Industry sectors are encouraged to offset these causes of mortality. Several options to mitigate these losses have been proposed, including raptor rehabilitation. However, its role as a conservation tool is untested. Currently no peer‐reviewed demographic analyses exist using post‐release data from rehabilitated raptors to evaluate its effectiveness at continental scales. Our objectives were to estimate annual survival of rehabilitated and wild raptors, and then use those estimates in demographic models to assess potential effects at individual and population levels. We hypothesized that rehabilitated raptors would survive similarly to their wild counterparts after an acclimation period, and that longer‐lived species (K‐selected) would benefit most from these releases. We used US Geological Survey Bird Banding Lab band‐recovery data (1974–2018) from 20 raptor species for modeling survival of rehabilitated individuals (n = 125 740) in comparison to wild birds (n = 1 913 352). Results from 17 species with adequate recovery data indicated that five species rehabilitated ≠ wild survival, two species had uncertain estimates, and 10 species rehabilitated ≈ wild survival by years two and three post‐release. We acquired admission (n = 69 707) and release (n = 25 740) data from 24 rehabilitation centers across the US (2012–2021). We integrated survival, fecundity and numbers of releases into demographic models. These models quantified the extent to which rehabilitated raptors may contribute to broader conservation efforts, especially in the context of individual take. All but two species, had measurable numbers of individuals added to the population regardless of the number of releases. The general pattern was for K‐selected species to yield larger benefits from rehabilitated supplementation to the population. These results provide evidence that rehabilitation may serve as mitigation tool to offset incidental take.

show abstract

Dispersal and Survival of Red-Shouldered Hawks Banded in Suburban Southern Ohio, 1996–20181

Cited by 11 publications

References 57 publications

Phylogeography and species limits in the red‐shouldered hawk (Buteo lineatus): Characterization of the Northern Florida Suture Zone in birds

Phylogeography and species limits in the red‐shouldered hawk (Buteo lineatus): Characterization of the Northern Florida Suture Zone in birds

Habitat and weather conditions influence reproductive rates of suburban and rural Red‐shouldered HawksButeo lineatus

‘Dead birds flying': can north American rehabilitated raptors released into the wild mitigate anthropogenic mortality?

Contact Info

Product

Resources

About