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Vercellino RB, Hernández F, Presotto A. The role of intraspecific crop-weed hybridization in the evolution of weediness and invasiveness: Cultivated and weedy radish (Raphanus sativus) as a case study. Am J Bot 2023; 110:e16217. [PMID: 37659092 DOI: 10.1002/ajb2.16217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 09/04/2023]
Abstract
PREMISE The phenotype of hybrids between a crop and its wild or weed counterpart is usually intermediate and maladapted compared to that of their parents; however, hybridization has sometimes been associated with increased fitness, potentially leading to enhanced weediness and invasiveness. Since the ecological context and maternal genetic effects may affect hybrid fitness, they could influence the evolutionary outcomes of hybridization. Here, we evaluated the performance of first-generation crop-weed hybrids of Raphanus sativus and their parents in two contrasting ecological conditions. METHODS Using experimental hybridization and outdoor common garden experiments, we assessed differences in time to flowering, survival to maturity, plant biomass, and reproductive components between bidirectional crop-weed hybrids and their parents in agrestal (wheat cultivation, fertilization, weeding) and ruderal (human-disturbed, uncultivated area) conditions over 2 years. RESULTS Crop, weeds, and bidirectional hybrids overlapped at least partially during the flowering period, indicating a high probability of gene flow. Hybrids survived to maturity at rates at least as successful as their parents and had higher plant biomass and fecundity, which resulted in higher fitness compared to their parents in both environments, without any differences associated with the direction of the hybridization. CONCLUSIONS Intraspecific crop-weed hybridization, regardless of the cross direction, has the potential to promote weediness in weedy R. sativus in agrestal and ruderal environments, increasing the chances for introgression of crop alleles into weed populations. This is the first report of intraspecific crop-weed hybridization in R. sativus.
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Affiliation(s)
- Román B Vercellino
- Departamento de Agronomía, CERZOS, Universidad Nacional del Sur (UNS)-CONICET, San Andrés 800, Bahía Blanca, 8000, Argentina
| | - Fernando Hernández
- Departamento de Agronomía, CERZOS, Universidad Nacional del Sur (UNS)-CONICET, San Andrés 800, Bahía Blanca, 8000, Argentina
- Department of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alejandro Presotto
- Departamento de Agronomía, CERZOS, Universidad Nacional del Sur (UNS)-CONICET, San Andrés 800, Bahía Blanca, 8000, Argentina
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Hayward MW, Callen A, Allen BL, Ballard G, Broekhuis F, Bugir C, Clarke RH, Clulow J, Clulow S, Daltry JC, Davies-Mostert HT, Fleming PJS, Griffin AS, Howell LG, Kerley GIH, Klop-Toker K, Legge S, Major T, Meyer N, Montgomery RA, Moseby K, Parker DM, Périquet S, Read J, Scanlon RJ, Seeto R, Shuttleworth C, Somers MJ, Tamessar CT, Tuft K, Upton R, Valenzuela-Molina M, Wayne A, Witt RR, Wüster W. Deconstructing compassionate conservation. Conserv Biol 2019; 33:760-768. [PMID: 31206825 DOI: 10.1111/cobi.13366] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 05/19/2019] [Indexed: 06/09/2023]
Abstract
Compassionate conservation focuses on 4 tenets: first, do no harm; individuals matter; inclusivity of individual animals; and peaceful coexistence between humans and animals. Recently, compassionate conservation has been promoted as an alternative to conventional conservation philosophy. We believe examples presented by compassionate conservationists are deliberately or arbitrarily chosen to focus on mammals; inherently not compassionate; and offer ineffective conservation solutions. Compassionate conservation arbitrarily focuses on charismatic species, notably large predators and megaherbivores. The philosophy is not compassionate when it leaves invasive predators in the environment to cause harm to vastly more individuals of native species or uses the fear of harm by apex predators to terrorize mesopredators. Hindering the control of exotic species (megafauna, predators) in situ will not improve the conservation condition of the majority of biodiversity. The positions taken by so-called compassionate conservationists on particular species and on conservation actions could be extended to hinder other forms of conservation, including translocations, conservation fencing, and fertility control. Animal welfare is incredibly important to conservation, but ironically compassionate conservation does not offer the best welfare outcomes to animals and is often ineffective in achieving conservation goals. Consequently, compassionate conservation may threaten public and governmental support for conservation because of the limited understanding of conservation problems by the general public.
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Affiliation(s)
- Matt W Hayward
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
- Centre for African Conservation Ecology, Nelson Mandela University, University Way, Summerstrand, Port Elizabeth, 6019, South Africa
- Mammal Research Institute, University of Pretoria, Lynwood Road, Hatfield 0028, Pretoria, South Africa
| | - Alex Callen
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Benjamin L Allen
- Institute for Life Sciences and the Environment, University of Southern Queensland, West Street, Toowoomba, QLD, 4350, Australia
| | - Guy Ballard
- School of Environmental and Rural Science, University of New England, Northern Ring Road, Armidale, NSW, 2351, Australia
- Vertebrate Pest Research Unit, Department of Primary Industries, New South Wales Government, Orange, NSW, 2800, Australia
| | - Femke Broekhuis
- WildCRU, Department of Zoology, University of Oxford, Tubney House, Abington Road, Oxford, OX135QL, U.K
| | - Cassandra Bugir
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Rohan H Clarke
- School of Biological Sciences, Monash University, Wellington Road, Clayton, VIC, 3168, Australia
| | - John Clulow
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Simon Clulow
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
- Department of Biological Sciences, Macquarie University, Balclava Road, Sydney, NSWs, 2019, Australia
| | - Jennifer C Daltry
- Fauna & Flora International, The David Attenborough Building, Pembroke Street, Cambridge, CB23QZ, U.K
| | - Harriet T Davies-Mostert
- Mammal Research Institute, University of Pretoria, Lynwood Road, Hatfield 0028, Pretoria, South Africa
- Endangered Wildlife Trust, Pinelands Office Park, Building K2, Ardeer Road, Modderfontein 1609, Johannesburg, South Africa
| | - Peter J S Fleming
- School of Environmental and Rural Science, University of New England, Northern Ring Road, Armidale, NSW, 2351, Australia
- Vertebrate Pest Research Unit, Department of Primary Industries, New South Wales Government, Orange, NSW, 2800, Australia
| | - Andrea S Griffin
- School of Psychology, University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
| | - Lachlan G Howell
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Graham I H Kerley
- Centre for African Conservation Ecology, Nelson Mandela University, University Way, Summerstrand, Port Elizabeth, 6019, South Africa
| | - Kaya Klop-Toker
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Sarah Legge
- Centre for Biodiversity Conservation Science, University of Queensland, University Drive, Saint Lucia, QLD, 4072, Australia
- Fenner School of Environment and Society, The Australian National University, Linnaeus Way, Acton, Canberra, ACT, 2601, Australia
| | - Tom Major
- College of Natural Sciences, Bangor University, College Road, Gwynedd, LL572DG, U.K
| | - Ninon Meyer
- Fondation Yaguara Panama, Ciudad del Saber, calle Luis Bonilla, Panama City, 0843-03081, Panama
| | - Robert A Montgomery
- Department of Fisheries and Wildlife, Michigan State University, 220 Trowbridge Road, East Lansing, MI, 48824, U.S.A
| | - Katherine Moseby
- School of Biological, Earth and Environmental Sciences, The University of New South Wales, ANZAC Parade, Sydney, NSW, 2052, Australia
- Arid Recovery, Roxby Downs, SA, 5725, Australia
| | - Daniel M Parker
- Wildlife and Reserve Management Research Group, Department of Zoology and Entomology, Rhodes University, Drosty Road, Grahamstown, 6139, South Africa
- School of Biology and Environmental Sciences, University of Mpumalanga, D725 Roads, Mbombela, 1200, South Africa
| | | | - John Read
- Department of Earth and Environmental Sciences, University of Adelaide, Kintore Avenue, Adelaide, SA, 5005, Australia
| | - Robert J Scanlon
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Rebecca Seeto
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Craig Shuttleworth
- College of Natural Sciences, Bangor University, College Road, Gwynedd, LL572DG, U.K
| | - Michael J Somers
- Mammal Research Institute, University of Pretoria, Lynwood Road, Hatfield 0028, Pretoria, South Africa
- Centre for Invasion Biology, University of Pretoria, Lynwood Road, Hatfield 0028, Pretoria, South Africa
| | - Cottrell T Tamessar
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | | | - Rose Upton
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Marcia Valenzuela-Molina
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita, C.P. 23096, La Paz, B.C.S., México
| | - Adrian Wayne
- Department of Biodiversity, Conservation and Attractions, Brain Street, Manjimup, WA, 6258, Australia
| | - Ryan R Witt
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Wolfgang Wüster
- College of Natural Sciences, Bangor University, College Road, Gwynedd, LL572DG, U.K
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Hock K, Wolff NH, Beeden R, Hoey J, Condie SA, Anthony KRN, Possingham HP, Mumby PJ. Controlling range expansion in habitat networks by adaptively targeting source populations. Conserv Biol 2016; 30:856-66. [PMID: 26633077 DOI: 10.1111/cobi.12665] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 08/24/2015] [Accepted: 11/29/2015] [Indexed: 05/14/2023]
Abstract
Controlling the spread of invasive species, pests, and pathogens is often logistically limited to interventions that target specific locations at specific periods. However, in complex, highly connected systems, such as marine environments connected by ocean currents, populations spread dynamically in both space and time via transient connectivity links. This results in nondeterministic future distributions of species in which local populations emerge dynamically and concurrently over a large area. The challenge, therefore, is to choose intervention locations that will maximize the effectiveness of the control efforts. We propose a novel method to manage dynamic species invasions and outbreaks that identifies the intervention locations most likely to curtail population expansion by selectively targeting local populations most likely to expand their future range. Critically, at any point during the development of the invasion or outbreak, the method identifies the local intervention that maximizes the long-term benefit across the ecosystem by restricting species' potential to spread. In so doing, the method adaptively selects the intervention targets under dynamically changing circumstances. To illustrate the effectiveness of the method we applied it to controlling the spread of crown-of-thorns starfish (Acanthaster sp.) outbreaks across Australia's Great Barrier Reef. Application of our method resulted in an 18-fold relative improvement in management outcomes compared with a random targeting of reefs in putative starfish control scenarios. Although we focused on applying the method to reducing the spread of an unwanted species, it can also be used to facilitate the spread of desirable species through connectivity networks. For example, the method could be used to select those fragments of habitat most likely to rebuild a population if they were sufficiently well protected.
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Affiliation(s)
- Karlo Hock
- Marine Spatial Ecology Lab, School of Biological Sciences, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
- ARC Centre of Excellence for Coral Reef Studies, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
- Australian Institute of Marine Science, 1526 Cape Cleveland Road, Townsville, QLD, 4810, Australia
| | - Nicholas H Wolff
- Marine Spatial Ecology Lab, School of Biological Sciences, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
- ARC Centre of Excellence for Coral Reef Studies, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
| | - Roger Beeden
- Great Barrier Reef Marine Park Authority, 2-68 Flinders Street, Townsville, QLD, 4810, Australia
| | - Jessica Hoey
- Great Barrier Reef Marine Park Authority, 2-68 Flinders Street, Townsville, QLD, 4810, Australia
| | - Scott A Condie
- CSIRO Oceans & Atmosphere, 3-4 Castray Esplanade, Hobart, TAS, 7004, Australia
| | - Kenneth R N Anthony
- Australian Institute of Marine Science, 1526 Cape Cleveland Road, Townsville, QLD, 4810, Australia
| | - Hugh P Possingham
- ARC Centre of Excellence for Environmental Decisions, the NERP Environmental Decisions Hub, Centre for Biodiversity & Conservation Science, School of Biological Sciences, Goddard Building, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Peter J Mumby
- Marine Spatial Ecology Lab, School of Biological Sciences, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
- ARC Centre of Excellence for Coral Reef Studies, Goddard Building, The University of Queensland, Brisbane St Lucia, QLD, 4072, Australia
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Medlock JM, Hansford KM, Versteirt V, Cull B, Kampen H, Fontenille D, Hendrickx G, Zeller H, Van Bortel W, Schaffner F. An entomological review of invasive mosquitoes in Europe. Bull Entomol Res 2015; 105:637-63. [PMID: 25804287 DOI: 10.1017/s0007485315000103] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Among the invasive mosquitoes registered all over the world, Aedes species are particularly frequent and important. As several of them are potential vectors of disease, they present significant health concerns for 21st century Europe. Five species have established in mainland Europe, with two (Aedes albopictus and Aedes japonicus) becoming widespread and two (Ae. albopictus and Aedes aegypti) implicated in disease transmission to humans in Europe. The routes of importation and spread are often enigmatic, the ability to adapt to local environments and climates are rapid, and the biting nuisance and vector potential are both an ecomonic and public health concern. Europeans are used to cases of dengue and chikungunya in travellers returning from the tropics, but the threat to health and tourism in mainland Europe is substantive. Coupled to that are the emerging issues in the European overseas territorities and this paper is the first to consider the impacts in the remoter outposts of Europe. If entomologists and public health authorities are to address the spread of these mosquitoes and mitigate their health risks they must first be prepared to share information to better understand their biology and ecology, and share data on their distribution and control successes. This paper focusses in greater detail on the entomological and ecological aspects of these mosquitoes to assist with the risk assessment process, bringing together a large amount of information gathered through the ECDC VBORNET project.
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Affiliation(s)
- J M Medlock
- Medical Entomology Group,MRA/BS,Emergency Response Department,Public Health England,Porton Down,Salisbury,UK
| | - K M Hansford
- Medical Entomology Group,MRA/BS,Emergency Response Department,Public Health England,Porton Down,Salisbury,UK
| | - V Versteirt
- Avia-GIS,Risschotlei 33,2980 Zoersel,Belgium
| | - B Cull
- Medical Entomology Group,MRA/BS,Emergency Response Department,Public Health England,Porton Down,Salisbury,UK
| | - H Kampen
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health,Südufer 10,17493 Greifswald - Insel Riems,Germany
| | - D Fontenille
- Centre National d'Expertise sur les Vecteurs (CNEV), Institut de recherche pour le développement (IRD), UMR MIVEGEC,BP 64501,34394 Montpellier,France
| | - G Hendrickx
- Avia-GIS,Risschotlei 33,2980 Zoersel,Belgium
| | - H Zeller
- Emerging and Vector-borne Diseases, European Centre for Disease Prevention and Control,Tomtebodavägen 11A,17183 Stockholm,Sweden
| | - W Van Bortel
- Emerging and Vector-borne Diseases, European Centre for Disease Prevention and Control,Tomtebodavägen 11A,17183 Stockholm,Sweden
| | - F Schaffner
- Avia-GIS,Risschotlei 33,2980 Zoersel,Belgium
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