Effects of Amur honeysuckle invasion and removal on white‐footed mice

Shields, Joshua M.; Jenkins, Michael A.; Zollner, Patrick A.; Saunders, Michael R.

doi:10.1002/jwmg.730

Cited by 13 publications

(17 citation statements)

References 62 publications

(76 reference statements)

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“…Focusing on areas dominated by honeysuckle may reveal stronger, more predictable patterns of habitat use within this preferred habitat type (Shields et al 2014). Another question that arises along with consideration of habitat used by these mice is arboreal movement.…”

Section: Discussionmentioning

confidence: 99%

“…White-footed mice are known to persist in areas invaded by Amur honeysuckle, sometimes being the only small mammal still present (Mattos and Orrock 2010;Dutra et al 2011;Rose et al 2014;Shields et al 2014). What factors determine P. leucopus microhabitat selection under the canopy depends on what habitat elements still persist.…”

Section: Small Mammals and White-footed Micementioning

confidence: 99%

“…What factors determine P. leucopus microhabitat selection under the canopy depends on what habitat elements still persist. Shields et al (2014) found leaf litter to be an important determinant of white-footed mouse abundance, but no studies have looked at honeysuckle and P. leucopus in urban areas. A standard habitat component that is highly selected for by white-footed mice is coarse woody debris (CWD), which provides both cover and food options (Fauteux et al, 2012;Kellner and Swihart 2014), and would be expected to still be relevant.…”

Section: Small Mammals and White-footed Micementioning

confidence: 99%

“…This rodent also persists in areas invaded by Amur honeysuckle, and is sometimes the only small mammal still present in such areas (Mattos and Orrock 2010;Dutra et al 2011;Rose et al 2014;Shields et al 2014). White-footed mice prefer habitats with dense canopy cover (Edalgo et al 2009), large quantities of woody debris (Drickamer 1990), and relatively little vegetative cover (Barnum et al 1992), preferences that we would expect to carry over into honeysuckle patches.…”

Section: Introductionmentioning

confidence: 95%

“…In non-urban areas invaded by Amur honeysuckle, Peromyscus leucopus is often the most populous small mammal by a large margin (Mattos and Orrock 2010;Dutra et al 2011;Rose et al 2014;Shields et al 2014). White-footed mice seem to preferentially favor Amur honeysuckle shrub cover for foraging (Mattos and Orrock 2010;Dutra et al 2011).…”

Section: Leucopus) Habitat Selection In An Urban Forest Introductionmentioning

confidence: 99%

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Impact of urban factors and invasive species on white-footed mouse (Peromyscus leucopus) habitat use and foraging behavior in an urban forest park.

Persons

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Persons, William, "Impact of urban factors and invasive species on white-footed mouse (Peromyscus leucopus) habitat use and foraging behavior in an urban forest park." (2015). Urban ecosystems demonstrate high levels of anthropogenic land-use change, modification of abiotic inputs, and altered disturbance regimes; these changes directly alter habitats. These changes result in reduced native biodiversity, creating available niches often filled by invasive species. Urban parks often serve as reserves for native species less suited to survival in urban areas, helping to preserve native biodiversity through mitigation of anthropogenic effects. Understanding what changes affect these urban parks, how the vegetative community responds, and how species (small mammals in particular) modify their behaviors to persist in these areas will increase our ability to manage urban areas for maximum biodiversity.This research project took place in Twin Parks, a forested bottomland urban park.The vegetative community, habitat structure, human presence, and the small mammal community were assessed at multiple scales. Giving-Up Density was also assessed.Chapter 1 assesses the habitat at a macro scale, determining what elements of the vegetative community, vertical structure, and environment contribute to patterns of white-footed mouse (Peromyscus leucopus) capture. Chapter 2 assesses habitat selection viii at a microhabitat scale, examining how P. leucopus uses the specific invasive Amur honeysuckle (Lonicera maackii). Chapter 3 examines P. leucopus anti-predator responses in relation to coarse woody debris (CWD) and honeysuckle canopy cover using GivingUp-Density trials.White-footed mice select for areas of greater canopy cover at the macro scale.White-footed mice selected for areas with more CWD at the micro-scale, while also potentially avoiding higher invasive species richness. White-footed mice preferentially foraged under the honeysuckle canopy in response to changes in temperature and humidity. This study suggests that the interaction between P. leucopus and ground layer invasive species is complex, and that the effect of moonlight may be diminished in this urban park.ix

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Section: Discussionmentioning

confidence: 99%

Section: Small Mammals and White-footed Micementioning

confidence: 99%

Section: Small Mammals and White-footed Micementioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Leucopus) Habitat Selection In An Urban Forest Introductionmentioning

confidence: 99%

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Impact of urban factors and invasive species on white-footed mouse (Peromyscus leucopus) habitat use and foraging behavior in an urban forest park.

Persons

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When perception reflects reality: Non‐native grass invasion alters small mammal risk landscapes and survival

Ceradini

Chalfoun

2017

Ecology and Evolution

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Modification of habitat structure due to invasive plants can alter the risk landscape for wildlife by, for example, changing the quality or availability of refuge habitat. Whether perceived risk corresponds with actual fitness outcomes, however, remains an important open question. We simultaneously measured how habitat changes due to a common invasive grass (cheatgrass, Bromus tectorum) affected the perceived risk, habitat selection, and apparent survival of a small mammal, enabling us to assess how well perceived risk influenced important behaviors and reflected actual risk. We measured perceived risk by nocturnal rodents using a giving‐up density foraging experiment with paired shrub (safe) and open (risky) foraging trays in cheatgrass and native habitats. We also evaluated microhabitat selection across a cheatgrass gradient as an additional assay of perceived risk and behavioral responses for deer mice (Peromyscus maniculatus) at two spatial scales of habitat availability. Finally, we used mark‐recapture analysis to quantify deer mouse apparent survival across a cheatgrass gradient while accounting for detection probability and other habitat features. In the foraging experiment, shrubs were more important as protective cover in cheatgrass‐dominated habitats, suggesting that cheatgrass increased perceived predation risk. Additionally, deer mice avoided cheatgrass and selected shrubs, and marginally avoided native grass, at two spatial scales. Deer mouse apparent survival varied with a cheatgrass–shrub interaction, corresponding with our foraging experiment results, and providing a rare example of a native plant mediating the effects of an invasive plant on wildlife. By synthesizing the results of three individual lines of evidence (foraging behavior, habitat selection, and apparent survival), we provide a rare example of linkage between behavioral responses of animals indicative of perceived predation risk and actual fitness outcomes. Moreover, our results suggest that exotic grass invasions can influence wildlife populations by altering risk landscapes and survival.

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Removal pattern mitigates negative, short‐term effects of stepwise Russian olive eradication on breeding birds

et al. 2019

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Invasive species can have disastrous ecological consequences, and management is often required to control these invasions and mitigate the damage. Yet in many systems, biological invaders can serve critical ecological roles, particularly where they have been long‐established or effectively replaced functionally similar native species. In such cases, eradicating invasions can have unintended consequences on other components of the ecosystem, and potential control measures must be viewed within an ecosystem‐wide context to ensure they do not cause more harm than good. On the lower Snake River in eastern Washington, invasive Russian olive (Elaeagnus angustifolia) comprises 90% of the woody riparian vegetation in some areas. In this study, we experimentally removed half of the Russian olive from 0.5‐ha plots using three configuration patterns that varied in the amount of interspersion of remaining vegetation (n = 9 replicates) to evaluate the short‐term impact of a stepwise restoration strategy on breeding bird communities. We monitored plots for 5 yr and found that Russian olive removal on low interspersion treatments negatively affected occupancy rates for 50 of 52 species (96%) and significantly reduced richness by up to 2.41 (95% credible interval [CI] = 0.73, 4.14) species relative to control plots. These effects dampened with increasing interspersion, and occupancy rates of only 41 (79%) species decreased on high interspersion treatments, leading to non‐significant richness reductions of only 0.99 (95% CI = −0.70, 2.75) species. Given the dominance of Russian olive in this region, removing it eliminates critical habitat for birds that require woody structure for nesting and foraging. Thus, we caution managers to consider the potential short‐term negative impacts to the local fauna when planning invasive control efforts. However, we found that several riparian‐dependent species known to breed in the region were noticeably absent from our study plots, and short‐term losses in avian habitat may be tolerable where restoration of native vegetation supports greater diversity in the long term. In such restoration efforts, managers may be able to mitigate the negative effects of invasive shrub control by maintaining high interspersion among unmanipulated vegetation while waiting for native vegetation to re‐establish.

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Effects of Amur honeysuckle invasion and removal on white‐footed mice

Cited by 13 publications

References 62 publications

Impact of urban factors and invasive species on white-footed mouse (Peromyscus leucopus) habitat use and foraging behavior in an urban forest park.

Impact of urban factors and invasive species on white-footed mouse (Peromyscus leucopus) habitat use and foraging behavior in an urban forest park.

When perception reflects reality: Non‐native grass invasion alters small mammal risk landscapes and survival

Removal pattern mitigates negative, short‐term effects of stepwise Russian olive eradication on breeding birds

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