Managing hybridization beyond the natural‐anthropogenic dichotomy

Donfrancesco, Valerio; Luque‐Lora, Rogelio

doi:10.1111/cobi.13816

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…While others believed that nativeness should not matter and rather the focus should be on measuring aspects such as ecological impacts. Similarly, some experts particularly valued conserving natural traits in wild populations, while others were more critical of natural versus anthropogenic distinctions when addressing hybridization (cf., Donfrancesco & Luque‐Lora, 2022). These discussions inform broader ongoing debates on how nonnative species (Cassini, 2020; Shackleton et al, 2022), hybridization (Donfrancesco & Luque‐Lora, 2022), and ecosystems (Rohwer & Marris, 2021) should be managed.…”

Section: Discussionmentioning

confidence: 99%

Understanding conflict among experts working on controversial species: A case study on the Australian dingo

Donfrancesco

Allen

Appleby

et al. 2023

Conservat Sci and Prac

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Expert elicitation can be valuable for informing decision‐makers on conservation and wildlife management issues. To date, studies eliciting expert opinions have primarily focused on identifying and building consensus on key issues. Nonetheless, there are drawbacks of a strict focus on consensus, and it is important to understand and emphasize dissent, too. This study adopts a dissensus‐based Delphi to understand conflict among dingo experts. Twenty‐eight experts participated in three rounds of investigation. We highlight disagreement on most of the issues explored. In particular, we find that disagreement is underpinned by what we call “conflict over values” and “conflict over evidence.” We also note the broader role played by distrust in influencing such conflicts. Understanding and recognizing the different elements shaping disagreement is critical for informing and improving decision‐making and can also enable critique of dominant paradigms in current practices. We encourage greater reflexivity and open deliberation on these aspects and hope our study will inform similar investigations in other contexts.

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Section: Discussionmentioning

confidence: 99%

Understanding conflict among experts working on controversial species: A case study on the Australian dingo

Donfrancesco

Allen

Appleby

et al. 2023

Conservat Sci and Prac

Self Cite

View full text Add to dashboard Cite

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“…Earlier viewpoints interpreted the biological basis of hybridity as a barometer, i.e., occurring within a natural versus anthropogenic context (Allendorf et al, 2001). This approach, while germane for its time, is now inadequate as viewed from a more contemporary and anthropogenic perspective, which seeks to avoid value-loaded terms such as ‘naturalness’ as a guiding principle for hybrid management (Donfrancesco and Luque-Lora, 2021). In fact, anthropogenic hybridization is now viewed as having positive conservation considerations (Chan et al, 2019; Ottenburghs, 2021), and has already been utilized as a managerial strategy (Zecherle et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Relictual Hybridization and Biogeography of Massasauga Rattlesnakes (Sistrurusspp.)

Martin

Douglas

Chafin

et al. 2022

Preprint

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Climate change inevitably leaves behind a genetic footprint within phylogeographic legacies of affected species, as individuals are driven to either disperse to track suitable conditions or adapt in situ. One potential consequence is the possibility of hybridization among species, as both geographic ranges and adaptive landscapes shift. The admixture resulting from these newly formed 'contact zones' has various outcomes, to include the creation of new lineages. Interpreting these within the context of historic climate change provides clues necessary to predict biotic responses (and thus evolutionary trajectories) as a function of contemporary shifts. Herein, we dissect historic contact zones for Massasaugas (Viperidae; Sistrurus spp.) within two distinct North American regions (southwestern United States and Central Great Plains) using ddRAD sequencing. We identified fine-scale but previously unrecognized population structure within the southwestern contact zone, where we detected contemporary intergradation between Prairie and Desert massasaugas (S. tergeminus tergeminus, and S. t. edwardsii, respectively), with primary divergence indicated by demographic model selection. Within the Central Great Plains, we found evidence for historic secondary contact via Quaternary climatic cycles, subsequently followed by range expansion at the suture zone separating S. tergeminus and S. catenatus. Extant Missouri populations represent ancestral/relictual vestiges of this earlier hybridization, isolated between the eastern terminus of S. t. tergeminus and the western edge of S. catenatus. Our results illustrate how abrupt climate change has driven ancestral hybridization, cryptic diversity, and range dynamism within Sistrurus.

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Managing hybridization beyond the natural‐anthropogenic dichotomy

Cited by 2 publications

References 22 publications

Understanding conflict among experts working on controversial species: A case study on the Australian dingo

Understanding conflict among experts working on controversial species: A case study on the Australian dingo

Relictual Hybridization and Biogeography of Massasauga Rattlesnakes (Sistrurusspp.)

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