The role of long‐distance seed dispersal in the local population dynamics of an invasive plant species

Pergl, Jan; Müllerová, Jana; Perglová, Irena; Herben, Tomáš; Pyšek, Petr

doi:10.1111/j.1472-4642.2011.00771.x

Cited by 48 publications

(51 citation statements)

References 71 publications

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“…Natal grass seeds are light; a gram contains from 1,311 to 1,417 (21) . The small weight of the seed and its plumose characteristics are attributes for an efficient and fast dispersion (39,40,41) .…”

Section: Seed Productionmentioning

confidence: 99%

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Biología del pasto rosado Melinis repens (Willd.) e implicaciones para su aprovechamiento o control

Melgoza‐Castillo¹,

Valladares²,

González³

et al. 2015

RMCP

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RESUMEN El pasto rosado (Melinis repens) es una especie introducida de África que invade diversos ecosistemas. EnMéxico se encuentra en todos los Estados, y en Chihuahua es la especie dominante en extensas áreas de pastizales. Las invasiones reducen la calidad y cantidad de los productos y servicios del ecosistema. No se sabe exactamente cuándo llegó al continente americano. Dependiendo de las condiciones climáticas puede comportarse como anual o perenne de vida corta. Produce abundante semilla durante años con precipitaciones por debajo de lo normal comparados con años lluviosos. La germinación de la semilla puede ser en presencia de luz o sin ella, la máxima germinación es entre 20 a 35 ºC; a -0.2 MPa se inhibe la germinación y el fuego no la afecta. ABSTRACTNatal grass (Melinis repens) is an introduced specie from Africa that is invading different ecosystems. In Mexico, it is present all over the country and dominates large areas of grasslands. Plant invasion reduces quality and quantity of ecosystem goods and services. The knowledge of the biology of invasive species is a key factor when a management and control plan will be established. It is unknown when this specie arrived to America. Depending on climatic conditions this grass may behave as annual or perennial. Seed production is larger in years with precipitation below normal than in wet years. Germination takes place with or without light, optimum temperature is from 20 to 35 ºC; at -0.2 MPa germination is inhibited, and fire does not affect seed germination. When moisture is not limited and during the early development, root:shoot ratios ranges from 1.13 to 1.90 and relative growth rate from 0.0034 to 0.15 mg g-1 d-1 ; also, biomass is reduced when natal grass grows on native soil compared to sterilized soil. Although it is considered as poor forage, the main use is as pasture. Other uses reported include ornamental, medicinal, and fito-remediation. Fire favors its growth, and no control method is known. So far, grazing of natal grass is the most viable management. Additionally, when planning a control campaign it is important to reduce the movement of this specie as part of human activities.

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Section: Seed Productionmentioning

confidence: 99%

“…Las semillas de rosado son livianas; un gramo contiene de 1,311 a 1,417 (21) . El peso de la semilla y su característica plumosa le confieren atributos para una eficiente y rápida dispersión (39,40,41) .…”

Section: Producción De Semillaunclassified

Biología del pasto rosado Melinis repens (Willd.) e implicaciones para su aprovechamiento o control

Melgoza‐Castillo¹,

Valladares²,

González³

et al. 2015

RMCP

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“…In its native range, P. mahaleb was shown to disperse seeds at considerable distances, reaching over 900 m, but local seed movements dominate, similarly to P. serotina (García et al 2007). The role of long distance dispersal is one of the focal points in studies on biological invasions, emphasizing the great invasive potential of frugivorous species (Von Der Lippe and Kowarik 2007; Vanhellemont et al 2010;Pergl et al 2011;Amodeo and Zalba 2013). Gosper et al (2005) showed that the structure of the landscape, i.e.…”

Section: Colonization In Agricultural Landscape Vs Forest Complexmentioning

confidence: 99%

Spatial genetic structure and clonality of Prunus serotina Ehrh. during invasive spread into Scots pine forests

Dering¹,

Sękiewicz²,

Iszkuło³

et al. 2018

Silva Fenn.

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(2018). Spatial genetic structure and clonal structure of Prunus serotina during invasive spread. Silva Fennica vol. 52 no. 3 article id 9987. 21 p. https://doi.org/10.14214/sf.9987 Highlights• The spread of Prunus serotina in invaded forests is facilitated by high propagule pressure.• The seed shadow overlap prevents strong spatial genetic structure.• During colonization of isolated site, a strong spatial genetic structure is produced due to founder effect.• Overall clonality in P. serotina was low but may efficiently support seedling bank thus contributing to species invasiveness. AbstractPrunus serotina Ehrh. (black cherry) is one of the most important invaders in the European forests, but existing studies have given limited insight into demo-genetic factors underpinning the process of species invasion. Fine-scale genetic structure (FSGS) may deliver important knowledge on genetics of invasion contributing to efficient management of the alien species. Using eight microsatellites we investigated FSGS, clonal structure and relatedness in four black cherry populations which represented different stages of the invasive spread into Scots pine forests. Three populations were in a continuous forest complex and represented the colonization (Z_1) and established stages (Z_2 and Z_3). To investigate how colonization ability of the species is modified by landscape features, we analyzed an isolated population at colonization stage located in limited forest patch located in an agricultural landscape (R). Populations from continuous forest showed low yet significant positive FSGS with Sp = 0.0068 in Z_1, 0.0054 in Z_2, and 0.0066 in Z_3, while in R spatial structure was the strongest (0.0145). Considerable relatedness noted in population R suggests a dominance of within-population mating and recruitments, low immigration rate and limited seed dispersal, all of which led to the observed strong FSGS. Also, we presume that a founder effect likely involved during colonization of isolated forest patch R led to strong FSGS. In contrary, the seed shadow overlap in the populations from continuous forest prevented strong FSGS and facilitated colonization. Despite of low level of clonality, we argue that it may efficiently support black cherry seedling bank contributing to species invasiveness.

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“…The long-distance component can be as simple as global dispersal that is independent of distance (Pergl et al, 2011;Hester and Cacho, 2012). More advanced approaches use mechanistic simulation algorithms for the long-distance dispersal.…”

mentioning

confidence: 99%

“…However, we still scored Cluster F as being of medium suitability for investigating the effectiveness of phytosanitary measures because the flexibility to include multiple dispersal mechanisms means there should be potential to model dispersal through trade. For example, Epanchin-Niell et al (2012) present a model in which new populations enter from outside the modelled domain randomly in both space and time, which bears strong similarity to the models using global dispersal for long-distance spread (Pergl et al, 2011;Hester and Cacho, 2012).…”

mentioning

confidence: 99%

Inventory and review of quantitative models for spread of plant pests for use in pest risk assessment for the EU territory

Chapman

White

Hooftman

et al. 2015

EFSA Supporting Publications

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This report considers the prospects for increasing the use of quantitative models for plant pest spread and dispersal in EFSA Plant Health risk assessments. The agreed major aims were to provide an overview of current modelling approaches and their strengths and weaknesses for risk assessment, and to develop and test a system for risk assessors to select appropriate models for application. First, we conducted an extensive literature review, based on protocols developed for systematic reviews. The review located 468 models for plant pest spread and dispersal and these were entered into a searchable and secure Electronic Model Inventory database. A cluster analysis on how these models were formulated allowed us to identify eight distinct major modelling strategies that were differentiated by the types of pests they were used for and the ways in which they were parameterised and analysed. These strategies varied in their strengths and weaknesses, meaning that no single approach was the most useful for all elements of risk assessment. Therefore we developed a Decision Support Scheme (DSS) to guide model selection. The DSS identifies the most appropriate strategies by weighing up the goals of risk assessment and constraints imposed by lack of data or expertise. Searching and filtering the Electronic Model Inventory then allows the assessor to locate specific models within those strategies that can be applied. This DSS was tested in seven case studies covering a range of risk assessment scenarios, pest types and dispersal mechanisms. These demonstrate the effectiveness of the DSS for selecting models that can be applied to contribute to EFSA Plant Health risk assessments. Therefore, quantitative spread and dispersal modelling has potential to improve current risk assessment protocols and contribute to reducing the serious impacts of plant pests in Europe.© NERC Centre for Ecology and Hydrology, 2015 KEY WORDSPlant pest, disease, invasion, dispersal, spread, model, simulation DISCLAIMERThe present document has been produced and adopted by the bodies identified above as author(s). In accordance with Article 36 of Regulation (EC) No 178/2002, this task has been carried out exclusively by the author(s) in the context of a grant agreement between the European Food Safety Authority and the author(s). The present document is published complying with the transparency principle to which the Authority is subject. It cannot be considered as an output adopted by the Authority. The European Food Safety Authority reserves its rights, view and position as regards the issues addressed and the conclusions reached in the present document, without prejudice to the rights of the authors. Inventory and review of quantitative models for spread of plant pests for use in pest risk assessment for the EU territory EFSA supporting publication 2015:EN-795The present document has been produced and adopted by the bodies identified above as author(s). In accordance with Article 36 of Regulation (EC) No 178/2002, this task has been carri...

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The role of long‐distance seed dispersal in the local population dynamics of an invasive plant species

Cited by 48 publications

References 71 publications

Biología del pasto rosado Melinis repens (Willd.) e implicaciones para su aprovechamiento o control

Biología del pasto rosado Melinis repens (Willd.) e implicaciones para su aprovechamiento o control

Spatial genetic structure and clonality of Prunus serotina Ehrh. during invasive spread into Scots pine forests

Inventory and review of quantitative models for spread of plant pests for use in pest risk assessment for the EU territory

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