Reproductive Biology of a Grassland Songbird Community in Northcentral Montana

Jones, Stephanie L.; Dieni, J. Scott; Gouse, Paula J.

doi:10.1676/08-171.1

Cited by 34 publications

(35 citation statements)

References 31 publications

(40 reference statements)

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“…Nest survival and survivorship for pipits and Vesper Sparrows were similar to observations in southeastern alberta (ludlow et al 2014), southern Saskatchewan (Davis 2003;McMaster et al 2005), north-central North Dakota (Grant et al 2005), and north-central Montana (Jones et al 2010), and our findings suggest that pipit reproductive success is negatively affected by proximity to the Row. however, given that we have data for only 1 year and nest success can fluctuate among years (Davis 2003;Jones et al 2010), our nest success results should be interpreted with caution.…”

Section: Nest Successsupporting

confidence: 89%

Nesting Behaviour and Reproductive Success of Sprague’s Pipit (Anthus spragueii) and Vesper Sparrow (Pooecetes gramineus) during Pipeline Construction

Sutter¹,

Davis²,

Skiffington³

et al. 2016

Can Field Nat

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industrial activity occurs in the breeding habitat of several species at risk, including the federally threatened Sprague's Pipit (Anthus spragueii). to evaluate whether oil pipeline construction reduces the productivity of this species, we examined (a) noise levels in relation to distance from the pipeline right-of-way (Row), (b) the extent to which noise and song frequencies overlapped, (c) the distribution of Sprague's Pipit nests relative to the Row, and (d) Sprague's Pipit reproductive success during exposure to pipeline construction and clean-up activity. we also examined the songs, nest locations, and reproductive success of the Vesper Sparrow (Pooecetes gramineus) for comparison. Study plots (400 × 400 m, n = 30) were established in grassland adjacent to the pipeline Row or 600 m away from the Row in similar habitat. Mean maximum noise levels during pipeline activity included frequencies that overlapped the song range of both species and were louder than the recommended 49 dB threshold up to 250 m from the Row. Sprague's Pipit nests were evenly distributed across close and distant plots, whereas Vesper Sparrow nests were more abundant within 50 m of the Row. Sprague's Pipit daily nest survival rate and the number of young surviving to day 8 both increased with increasing distance from the Row; and Vesper Sparrow daily nest survival decreased slightly with exposure to pipeline activities. our findings validate the restricted activity period and indicate that the recommended setback distance of 350 m is a reasonable guideline for pipeline projects.

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Section: Nest Successsupporting

confidence: 89%

Nesting Behaviour and Reproductive Success of Sprague’s Pipit (Anthus spragueii) and Vesper Sparrow (Pooecetes gramineus) during Pipeline Construction

Sutter¹,

Davis²,

Skiffington³

et al. 2016

Can Field Nat

View full text Add to dashboard Cite

show abstract

“…On the other hand, negative relationship between brood size and time of season suggests that females generally reduce brood size as a response to less favourable feeding conditions later in season. These patterns were found also in other passerines (e.g., Goodenough et al 2009;Jones et al 2010). Therefore, reduced clutch sizes seem to be more effective strategies how to avoid starvation compared to relatively discrete manipulations with brood sex ratio.…”

Section: Discussionsupporting

confidence: 55%

“…In accordance with the aforementioned studies we predicted that monogamous and primary females will have a higher proportion of sons in their broods than secondary females and that overproduction of sons in nests of monogamous and primary females will correlate with female body condition. Finally, as there is known direct relationship between offspring sex ratio, clutch size and timing of breeding in many species (i. e. Dyrcz & Cichoń 2009;Goodenough et al 2009;Jones et al 2010), and secondary females usually start breeding later than monogamous and primary females in polygynous species Griggio et al 2003), we also predicted seasonal variations in clutch size and proportion of sons per brood in the great reed warbler.…”

Section: Introductionmentioning

confidence: 84%

Hatchling sex ratio and female mating status in the great reed warbler,Acrocephalus arundinaceus(Aves, Passeriformes): further evidence for offspring sex ratio manipulation

Trnka

2012

Italian Journal of Zoology

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Offspring sex in birds is maternally determined, thus females are expected to vary brood sex ratio adaptively in response to various environmental and/or genetic conditions preferring one sex to the other sex. However, recent studies provide controversial evidence showing mixed support for adaptive sex manipulation theory. One problem may lie in the fact that only sex ratios at fledging have been used in many of these studies, ignoring post-hatching sex-biased mortality. To validate these results, some authors call for replication of previous researches. Here we examined hatchling sex ratio variation in relation to female mating status in a local population of facultatively polygynous great reed warblers Acrocephalus arundinaceus in Central Europe. In agreement with results of previous works, we found that monogamous and primary females had a higher proportion of sons in their broods than secondary females. These results provide further evidence that great reed warbler females manipulate the sex ratio of their offspring in response to their social status.

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“…This could be related to differences in vegetation structure and/or site quality (perhaps as a function of weather) or less likely, variation in population density. Although somewhat taxonomically distinct, the species studied here occupy generally similar ecological niches with regards to foraging substrates, as well as nest-site characteristics and breeding phenology (Dieni and Jones 2003;Jones et al 2010). Clearly these annual factors could have been causing the notable increase in mean territory size between 2007 and 2008 documented here.…”

Section: Discussionmentioning

confidence: 73%

“…Territory measurements were taken well after the spring arrival of each species (Jones et al 2010), eliminating the effect of increasing population pressure on territory size due to more arrivals. All three of these species were found to have single frequency peaks in clutch initiation dates during 1997-2007, suggesting a tendency here towards single broods per season (Jones et al 2010). Therefore, territories defended in July should primarily represent the later stages of breeding and this is what would be expect ed in Type A territorial defense.…”

Section: Discussionmentioning

confidence: 99%

Territory Size in Mixed-grass Prairie Songbirds

Jones

2011

Can Field Nat

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I estimated breeding territory size in mixed-grass prairie songbirds, and explored how it varied among bird species, time-of-season, and year. The study was conducted at Bowdoin National Wildlife Refuge in north-central Montana during 2007-2009. Across all species, months and years, mean breeding territory size was estimated at 0.43 ha (SE = 0.03, n = 129). Estimates were nearly identical across study species: Sprague's Pipits (Anthus spragueii), Grasshopper (Ammodramus savannarum), and Baird's (A. bairdii) sparrows. There was no significant variation in territory size across months, suggesting little to no dependence on nest phase. In contrast, I found significant variation in territory size among years (P = 0.034), that did not interact meaningfully with species (R2 = 0.02, P = 0.603). This suggests that factors that vary annually appear to be affecting all bird species in a similar manner, which could be related to differences in vegetation structure and/or site quality (perhaps as a function of weather) or less likely, variation in population density.

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Reproductive Biology of a Grassland Songbird Community in Northcentral Montana

Cited by 34 publications

References 31 publications

Nesting Behaviour and Reproductive Success of Sprague’s Pipit (<i>Anthus spragueii</i>) and Vesper Sparrow (<i>Pooecetes gramineus</i>) during Pipeline Construction

Nesting Behaviour and Reproductive Success of Sprague’s Pipit (<i>Anthus spragueii</i>) and Vesper Sparrow (<i>Pooecetes gramineus</i>) during Pipeline Construction

Hatchling sex ratio and female mating status in the great reed warbler,Acrocephalus arundinaceus(Aves, Passeriformes): further evidence for offspring sex ratio manipulation

Territory Size in Mixed-grass Prairie Songbirds

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