Influence of<i>Lonicera maackii</i>Invasion on Leaf Litter Decomposition and Macroinvertebrate Communities in an Urban Stream

Fargen, Catherine; Emery, Sarah M.; Carreiro, Margaret M.

doi:10.3375/043.035.0303

Cited by 19 publications

(5 citation statements)

References 64 publications

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“…However, we found that lower banks were also associated with an increase in non-native species, which are likely to become more prominent in the future given their high abundance in smaller size classes. A shift in species composition to more non-native trees could impact not only habitat value and food webs, but also nutrient cycling in streams and riparian soils (Fargen, Emery, & Carreiro, 2015;Martínez, Larrañaga, Pérez, Basaguren, & Pozo, 2013;Mitchell, Lockaby, & Brantley, 2011;Swan, Healey, & Richardson, 2008). Direct management, although a resource-intensive approach, may be effective at reducing the prevalence of non-native species.…”

Section: Future Riparian Communities and Management Considerationsmentioning

confidence: 99%

Testing urban drivers of riparian woody vegetation composition in a precipitation‐limited system

Solins

Cadenasso

2019

Journal of Ecology

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In precipitation‐limited regions, where water availability is a key driver of vegetation patterns, altered hydrology in urban areas may have a particularly strong effect on riparian plant communities. Urban water inputs can create perennial flows in formerly intermittent streams, potentially providing a water subsidy to riparian plants during dry seasons. However, during rainy seasons, increased storm flow magnitudes in urban areas can cause stream channel incision and associated lowered water tables. Channel incision may reduce riparian soil moisture throughout the year and limit the effect of dry‐season stream flow. We investigated whether channel incision and dry‐season stream flow were related to the composition of riparian vegetation communities along small streams in Sacramento, California, United States, and whether these two factors interacted. Sacramento has a Mediterranean climate with a long summer dry season. We sampled the riparian woody plant community along 66 stream reaches that created a gradient of channel incision severity across sites with and without dry‐season flow. The riparian vegetation community was more strongly related to channel incision than dry‐season flow. The two factors did interact in relation to the overall community composition based on multivariate analyses, but we did not detect interactions in univariate generalized linear mixed models predicting specific components of the woody vegetation community, with the exception of large native oak trees. We found that wetland‐associated species and non‐native species both became less prevalent with increasing channel incision. Conversely, native upland oak trees became more prevalent with increasing incision, although large oak trees only showed this pattern along flowing streams. Wetland‐associated seedlings were almost exclusively found along flowing streams. Synthesis. Our findings suggest that channel incision is a key driver of riparian woody vegetation composition. Although the effects of dry‐season flow were less pronounced, urban water subsidies may be essential for the establishment of wetland‐associated trees along historically intermittent streams. Varied hydrological conditions in precipitation‐limited cities are associated with divergent assemblages of woody species in riparian zones.

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Section: Future Riparian Communities and Management Considerationsmentioning

confidence: 99%

Testing urban drivers of riparian woody vegetation composition in a precipitation‐limited system

Solins

Cadenasso

2019

Journal of Ecology

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“…Invasive plant species are widespread, impact the dynamics of the ecosystems they invade (Roy et al., 2023; Vitousek et al., 1997) and are the second leading threat to biodiversity next to habitat loss (Wilcove et al., 1998). Invasive plants have a plethora of direct and indirect impacts that alter ecosystem functioning (Fargen et al., 2015; Hopfensperger et al., 2017), community interactions (Dutra et al., 2011; Schmidt & Whelan, 1999), community structure and species composition (Christopher & Cameron, 2012; Hartman & McCarthy, 2008). Depending on the success of the invader, local biodiversity can be reduced to a near monoculture (Olson & Whitson, 2002), underscoring the importance of effective control strategies.…”

Section: Introductionmentioning

confidence: 99%

Basal bark herbicide treatment of Lonicera maackii (Amur honeysuckle) is effective regardless of application timing, with limited nontarget effects on native plant diversity

Hogan,

Baker,

Bach

et al. 2024

Ecol Sol and Evidence

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Managers tasked with controlling invasive species require effective methods that are quick and easy to use without inflicting extensive nontarget damage, while also being compatible with other scheduled management responsibilities. Lonicera maackii (Amur honeysuckle) is a non‐native shrub that has invaded eastern and midwestern North American deciduous forests, altering ecosystem function and reducing biodiversity. This study explores prescribed fire and seasonal basal applications of triclopyr ester as control methods and examines the extent of nontarget damage. We used paired‐split plots to implement basal bark treatments in different seasons within burned and unburned units, and we tracked individual L. maackii to determine mortality and hyperlocal impacts of management. Basal bark treatments killed 98.4% of L. maackii across seasonal timings. Nontarget plant cover declined similarly for all herbicide application seasons, but there were some signs of recovery within 4 years, and the early‐ and late spring treatments were less affected overall. Species richness showed biologically small but statistically different declines across treatment times. Prescribed fire did not impact L. maackii mortality or interact with herbicide efficacy. Basal bark applications of triclopyr are an effective means of L. maackii control regardless of application timing, which allows managers to implement it at their convenience to avoid interfering with other management tasks that have time constraints.

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“…We believe that it is the allochthonous organic substances entering ecosystems through fallen leaves that are responsible for the new biochemical impact on neighboring species, especially grass-layer species. Leaf litter is one of the most important sources of the nutrients and energy that support food chains in oligotrophic systems [ 12 , 13 ] and can also serve as an important source of the nutrients that cause siltation processes along banks of water bodies and streams in the littoral zone of large bodies of water [ 14 , 15 ]. An influence of ground litter on the mineralization of nutrients was noticed in many other articles [ 16 , 17 ], indicating that species richness and/or the composition of ground litter are important for processes for decomposition and the functioning of ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Leaf Extracts of Invasive Woody Species Demonstrate Allelopathic Effects on the Growth of a Lawn Grass Mixture

Shelepova,

Tkacheva,

Ivanovskii

et al. 2023

Plants

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Biochemical composition was studied in the leaf litter of alien woody species included in the 100 most aggressive invasive species of Europe: Ailanthus altissima, Quercus rubra, Acer negundo, Robinia pseudoacacia, and Elaeagnus angustifolia. Using GC-MS, we detected 187 metabolites in the leaf litter, which are phenolic acids and their derivatives, carbohydrates and their derivatives, polyphenolic compounds, cyclic esters, glycosides, and amino acids and their derivatives. Species-specific metabolites were identified for each species. The main allelochemicals in the leaf litter extract of Q. rubra are determined mainly by the relative abundance of phenolic and fatty acids and their esters, whereas those in the leaf litter extract of R. pseudoacacia are determined by carbohydrates and their derivatives and ester of fatty acid, and those in the leaf litter extract of A. altissima are determined by glycosides. Profiles of macro- and microelements were characterized. It was found that aqueous extracts of leaf litter from all the invasive woody plants under study have a negative effect on the seed germination and initial growth of Vicia cracca and Avena strigosa used for the reclamation of disturbed urban and industrial lands. At the same time, V. cracca is potentially more sensitive.

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Influence ofLonicera maackiiInvasion on Leaf Litter Decomposition and Macroinvertebrate Communities in an Urban Stream

Cited by 19 publications

References 64 publications

Testing urban drivers of riparian woody vegetation composition in a precipitation‐limited system

Testing urban drivers of riparian woody vegetation composition in a precipitation‐limited system

Basal bark herbicide treatment of Lonicera maackii (Amur honeysuckle) is effective regardless of application timing, with limited nontarget effects on native plant diversity

Leaf Extracts of Invasive Woody Species Demonstrate Allelopathic Effects on the Growth of a Lawn Grass Mixture

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