Invasive honeysuckle eradication reduces tick-borne disease risk by altering host dynamics

Allan, Brian F.; Dutra, Humberto P.; Goessling, Lisa S.; Barnett, Kirk; Chase, Jonathan M.; Marquis, Robert J.; Pang, Genevieve; Storch, Gregory A.; Thach, Robert E.; Orrock, John L.

doi:10.1073/pnas.1008362107

Cited by 136 publications

(112 citation statements)

References 41 publications

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“…Certainly there is no doubt that nonnative species can greatly affect ecosystems services, both negatively (e.g. bush honeysuckle, Lonicera spp., increasing human Lyme disease risks, Allan et al 2010) and positively (e.g., pollination services by nonnative European honeybees, Apis melifera, Potts et al 2010). Although there has been an effort to frame nonnative species impacts in terms of ecosystem services (Vilà et al 2010), perhaps invasion biologists should be more explicit about how nonnative species impacts fit into the MEA framework.…”

Section: Future?mentioning

confidence: 99%

Missing the bandwagon: Nonnative species impacts still concern managers

Kuebbing¹,

Simberloff²

2015

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Recent critics of invasion biology advocate reduced efforts against nonnative species, arguing that attempts to manage invasions are often costly and futile and that managers are indiscriminately managing species regardless of their impact. Whether this criticism has affected ground-level operations is unknown. A survey of land stewards of a major conservation NGO reveals that this plea has not been heeded; in fact, managers report that they would increase nonnative species management if more resources were available. While respondents overwhelmingly listed nonnative, invasive species as their highest priority for management, we found little evidence supporting the criticism that practitioners focus on nonnative species with minimal ecological impact. Additionally, we found that more conservation practitioners reported managing problematic "weedy" native species over nonnative species that are not invasive. Our results indicate that these managers are selective rather than profligate, targeting species that are having a demonstrable impact or are likely to do so. They feel hamstrung by resource shortages despite their rigorous target selection. Why the increasing literature calling for changed treatment of nonnatives has not led to changed operations is uncertain. Possible reasons are that the critics are not prescriptive or unified about management prioritization, or that these managers simply reject the proposed new paradigm.

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Section: Future?mentioning

confidence: 99%

Missing the bandwagon: Nonnative species impacts still concern managers

Kuebbing¹,

Simberloff²

2015

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“…Assessing the relative strength of these filters is a fundamental step in determining mechanisms that govern the distribution of a parasite across hosts. Understanding factors that modulate host range is important because changes in these factors alter transmission dynamics [3][4][5] and introduce novel parasites to naive hosts, sometimes with devastating consequences [6].…”

Section: Introductionmentioning

confidence: 99%

Host compatibility rather than vector–host-encounter rate determines the host range of avian Plasmodium parasites

2013

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Blood-feeding arthropod vectors are responsible for transmitting many parasites between vertebrate hosts. While arthropod vectors often feed on limited subsets of potential host species, little is known about the extent to which this influences the distribution of vector-borne parasites in some systems. Here, we test the hypothesis that different vector species structure parasitehost relationships by restricting access of certain parasites to a subset of available hosts. Specifically, we investigate how the feeding patterns of Culex mosquito vectors relate to distributions of avian malaria parasites among hosts in suburban Chicago, IL, USA. We show that Plasmodium lineages, defined by cytochrome b haplotypes, are heterogeneously distributed across avian hosts. However, the feeding patterns of the dominant vectors (Culex restuans and Culex pipiens) are similar across these hosts, and do not explain the distributions of Plasmodium parasites. Phylogenetic similarity of avian hosts predicts similarity in their Plasmodium parasites. This effect was driven primarily by the general association of Plasmodium parasites with particular host superfamilies. Our results suggest that a mosquito-imposed encounter rate does not limit the distribution of avian Plasmodium parasites across hosts. This implies that compatibility between parasites and their avian hosts structure Plasmodium host range.

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“…Honeysuckle was first introduced to North America from Asia in the 1800s as an ornamental plant and since then has become a dominant plant in many forest and shrubland systems, particularly in the eastern US (Hutchison and Vankat 1997). Numerous studies have documented the negative consequences of honeysuckle to native plants (Gould andGorchov 2000, Collier et al 2002), animals (Schmidt & Whelan 1999, Watling et al 2011), ecosystem processes (Ehrenfeld et al 2001, Ehrenfeld 2003, ecological services such as pollination (McKinney & Goodell 2010), and even human health (Allan et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Does removal of invasives restore ecological networks? An experimental approach

2015

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Anthropogenic disturbance can alter the structure of ecological networks in ways that have population consequences. For example, bird-plant networks in forests surrounded by urban land were more likely to be dominated by strong interactions (i.e., less even in strength) than networks in rural landscapes, and these asymmetric interactions depressed avian nest survival. Based on this prior research, we hypothesized that invasion of urban habitats by exotic plants was the underlying mechanism driving changes in network structure. We tested this hypothesis using an in situ experiment where exotic Amur honeysuckle (Lonicera maackii) was removed from replicated 2-ha forest plots and compared bird-plant networks among urban removal forests, honeysuckle-dominated, urban control forests, and rural forests with little honeysuckle. From 2005-2011, we surveyed densities of understory-nesting birds and nest predators, recorded information about nest location, and monitored nest survival. For each year and site network, we calculated evenness of interaction strengths. Despite post-removal vegetation resembling that in rural forests, removal of exotic honeysuckle did not restore network structure. Evenness of interactions between birds and plants was greatest in rural forests and least in urban control plots. Nest survival increased with evenness across all sites, but the relationship was strongest within urban removal plots, which had the lowest overall nest survival rates. Even though invasion by honeysuckle was a plausible driver of urban-associated network shifts, the experimental removal suggested that factors other than invasion were responsible for network changes or that our system experienced hysteresis or time lags. Our study suggests that restoration of ecological networks may be more challenging than anticipated. AbstractAnthropogenic disturbance can alter the structure of ecological networks in ways that have population consequences. For example, bird-plant networks in forests surrounded by urban land were more likely to be dominated by strong interactions (i.e., less even in strength) than networks in rural landscapes, and these asymmetric interactions depressed avian nest survival.Based on this prior research, we hypothesized that invasion of urban habitats by exotic plants was the underlying mechanism driving changes in network structure. We tested this hypothesis using an in situ experiment where exotic Amur honeysuckle (Lonicera maackii) was removed from replicated 2-ha forest plots and compared bird-plant networks among urban removal forests, honeysuckle-dominated, urban control forests, and rural forests with little honeysuckle. Nest survival increased with evenness across all sites, but the relationship was strongest within urban removal plots, which had the lowest overall nest survival rates. Even though invasion by honeysuckle was a plausible driver of urban-associated network shifts, the experimental removal suggested that factors other than invasion were responsible for network changes or th...

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Invasive honeysuckle eradication reduces tick-borne disease risk by altering host dynamics

Cited by 136 publications

References 41 publications

Missing the bandwagon: Nonnative species impacts still concern managers

Missing the bandwagon: Nonnative species impacts still concern managers

Host compatibility rather than vector–host-encounter rate determines the host range of avian Plasmodium parasites

Does removal of invasives restore ecological networks? An experimental approach

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