Need for routine tracking of biological invasions

Pergl, Jan; Pyšek, Petr; Essl, Franz; Jeschke, Jonathan M.; Courchamp, Franck; Geist, Juergen; Hejda, Martin; Kowarik, Ingo; Mill, Aileen C.; Musseau, Camille; Pipek, Pavel; Saul, Wolf‐Christian; Schmalensee, Menja von; Strayer, David L.

doi:10.1111/cobi.13445

Cited by 42 publications

(32 citation statements)

References 26 publications

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“…Examples include the selection of species with particular traits for re-introductions to suitable urban habitats and priority setting in managing populations of target species in different urban settings. Generally, our study illustrates the usefulness of allocating limited conservation resources to population monitoring, more so considering the recent claim on the importance of long-term monitoring in anthropogenic systems (Haase et al, 2018;Pergl et al, 2019).…”

Section: Practical Implicationsmentioning

confidence: 58%

Plant traits, biotopes and urbanization dynamics explain the survival of endangered urban plant populations

Planchuelo

Kowarik

Lippe

2020

Journal of Applied Ecology

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Section: Practical Implicationsmentioning

confidence: 58%

Plant traits, biotopes and urbanization dynamics explain the survival of endangered urban plant populations

Planchuelo

Kowarik

Lippe

2020

Journal of Applied Ecology

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“…The monitoring programme described here enables routine reporting (sensu Pergl et al 2020) of ungulate occupancy and relative abundance on New Zealand's public conservation land. The data reported in Tables 3 and 4 provide a baseline estimate of occupancy and relative abundance for introduced ungulates on New Zealand's PCL.…”

Section: Limitations Of This Monitoring Programmementioning

confidence: 99%

Occupancy and relative abundances of introduced ungulates on New Zealand’s public conservation land 2012–2018

Moloney¹,

Forsyth²,

Ramsey³

et al. 2021

NZJE

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Introduced ungulates are an important management issue on New Zealand's public conservation land (PCL). Ungulates are harvested by recreational and commercial hunters, with some government-funded culling. A robust monitoring system is needed to reliably report trends in occupancy and abundance, and to evaluate management effectiveness. We first describe the design and implementation of a monitoring programme enabling ungulate occupancy and relative abundances to be estimated on New Zealand's PCL. Monitoring sites are located at the vertices of an 8-km grid superimposed over PCL on North, South and Stewart/Rakiura islands (i.e. a spatially representative sampling network). At each site, intact ungulate pellets are counted on four transects radiating from a 400 m 2 vegetation plot, with each 150 m transect containing 30 1-m radius plots. We next report an analysis of the first such data collected at 1346 sites during 2012-2018. Nationally, ungulate occupancy and abundance were higher at woody than at non-woody sites, and overall were higher in the North Island than in the South Island. Occupancy odds increased by 34% and 21% per annum in the North Island and South Island, respectively. Abundance (conditional on sites being occupied) increased 11% annually in the North Island, but did not change in the South Island. These increases in occupancy and abundance indicate that ungulate populations are recovering from the lows of the 1980s, likely due to reduction in both commercial harvesting and government-funded control. The data from the monitoring reported here establish a baseline against which future estimates of ungulate occupancy-abundance, and the effectiveness of management activities, can be assessed. Five-yearly remeasurements at the sites, coupled with more comprehensive recording of information on government control and commercial/recreational harvesting activities, should enable the drivers of future changes in ungulate occupancy and abundance to be better understood.

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“…Recent publications highlight the importance of welldesigned monitoring and reporting procedures for IAS that facilitate comparisons over space and time (e.g. Latombe et al 2017;Wilson et al 2018;Pergl et al 2020). Standardised long-term monitoring of IAS and their management in WHS and other PAs would help to realise the vision of robust monitoring of biological invasions globally (Latombe et al 2017) to guide adaptive management, aid with policy development, and improve the understanding of invasion dynamics.…”

Section: Discussionmentioning

confidence: 99%

Biological invasions in World Heritage Sites: current status and a proposed monitoring and reporting framework

et al. 2020

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UNESCO World Heritage Sites (WHS) are areas of outstanding universal value and conservation importance. They are, however, threatened by a variety of global change drivers, including biological invasions. We assessed the current status of biological invasions and their management in 241 natural and mixed WHS globally by reviewing documents collated by UNESCO and IUCN. We found that reports on the status of biological invasions in WHS were often irregular or inconsistent. Therefore, while some reports were very informative, they were hard to compare because no systematic method of reporting was followed. Our review revealed that almost 300 different invasive alien species (IAS) were considered as a threat to just over half of all WHS. Information on IAS management undertaken in WHS was available for fewer than half of the sites that listed IAS as a threat. There is clearly a need for an improved monitoring and reporting system for biological invasions in WHS and likely the same for other protected areas globally. To address this issue, we developed a new framework to guide monitoring and reporting of IAS in protected areas building on globally accepted standards for IAS assessments, and tested it on seven WHS. The framework requires the collation of information and reporting on pathways, alien species presence, impacts, and management, the estimation of future threats and management needs, assessments of knowledge and gaps, and, using all of this information allows for an overall threat score to be assigned to the protected area. This new framework should help to improve monitoring of IAS in protected areas moving forward.

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Need for routine tracking of biological invasions

Cited by 42 publications

References 26 publications

Plant traits, biotopes and urbanization dynamics explain the survival of endangered urban plant populations

Plant traits, biotopes and urbanization dynamics explain the survival of endangered urban plant populations

Occupancy and relative abundances of introduced ungulates on New Zealand’s public conservation land 2012–2018

Biological invasions in World Heritage Sites: current status and a proposed monitoring and reporting framework

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