Animal Citizenship in Gene Drive Ethics

An Evaluative Application of Donaldson and Kymlicka’s Citizenship Framework to Human Intervention and Management of Non-Humans in Gene Drive Engineering


Introduction

Increasing interest in methods of conserving non-human animals has emerged in light of the ever-growing Red List of Endangered Species. The Red List appraises each species on a series of standards in its scientific approach, ranging from population decrease within ten years to decreases in the size of their (local) population area (Hogeback 2023). This appraisal determines a statistical prediction of whether the species will become extinct within the next 20 years. As a result, the utilisation of genetic engineering techniques has gained significant attention due to their potential to address the challenges of conservation by tackling issues raising the number of predictions.

As the Red List expands, new and innovative methods of genetic modification are explored by scientists, policymakers and ethicists. One of these methods is gene drive engineering. Characterised by their ability to alter the genetic makeup of species through biological inheritance, gene drives present a particularly interesting approach to conservation. While traditional methods of conservation rely on natural selection to spread desired genetic traits, gene drive mechanisms bias the inheritance process, ensuring that certain traits are passed onto offspring. Therefore, by targeting certain genetic traits, such as disease susceptibility and reproduction capability, gene drives offer the potential to significantly change conservation practices.

However, the use of gene drive technology raises various ethical considerations that must be addressed carefully. Many of these considerations stem from a debate in animal rights theory on whether humans should intervene in the livelihoods of non-human species. In the case of gene drive engineering, this debate is especially relevant since the method affects the species directly, as opposed to the traditional conservation efforts that affect their surrounding environments. The method raises the question of whether non-human animals should be left alone or if humans owe them moral obligations to help actively keep more species off the Red List.

It is also worthwhile to consider to which animal species, if any, humans owe moral obligations. This is especially the case for positive obligations, whereby humans actively intervene in efforts to help other species. Although traditional animal rights perspectives may advocate for preventing human intervention in wild animals’ livelihoods (Gamborg, Palmer, and Sandoe 2012), this approach can be considered unhelpful in gene drive discussions insofar as it provides no criteria constituting what makes an animal “wild”. Many species choose to live in close proximity to humans, benefitting from human communities while holding a status distinct from wild and domesticated animals. Since the obligations humans owe to them may differ, it is essential to explore a framework addressing the concerns that arise from the human management of non-humans.

Furthermore, core political dimensions are at play in the ethical considerations of gene drive engineering. In investigating the relationship between climate and animal ethics, human interference and obligations to others, Donaldson and Kymlicka’s citizenship framework should be consulted. As influential authors in animal rights fields, they offer a reconceptualisation of citizenship theory that includes the role of non-human animals in political communities. Their citizenship framework can be applied to the case of human interference via gene drives, resulting in a reflection on its usefulness in navigating the method’s complexities given the urgency of the Red List’s expansion.

This paper aims to examine the ethical dimensions of the prospective conservation method, focussing on insights from ethics, ecology and conservation biology. The examination will demonstrate these complex dimensions in terms of human interference and obligations to other species. It will first provide an overview of gene drive modification, analysing its capabilities and prospects. Following the analysis, the paper will explore the consequences gene drives can have on the target species alongside the ecosystems and communities in which they live. Next, Donaldson and Kymlicka’s extension of animal rights via citizenship theory will be consulted, reflecting on the moral obligations owed to different groups of non-human animals. Their conceptualisation of animal citizenship will then be used as a lens through which the themes of intercommunity interaction, agency and responsibility can be applied to gene drive inquiry. This exploration will lead to the conclusion that Donaldson and Kymlicka’s framework provides a nuanced approach to intervention that is useful in navigating gene drive ethics insofar as humans have different, complex responsibilities to different kinds of animals.

Exploring Gene Drives and Their Ethical Dimensions

Due to the rapid expansion of the Red List of Endangered Species, biologists and ethicists alike have begun to consider modifying the gene sequences of species in order to conserve or increase endangered populations. A particularly intriguing variation of this research concerns gene drives, defined as “systems of biased inheritance in which the ability of a genetic element to pass from a parent to its offspring through sexual reproduction is enhanced” (National Academies of Science, Engineering, and Medicine 2016, 15). Therefore, gene drive technology aims to spread a desired trait throughout a species’ population through reproduction, ranging from decreased disease susceptibility to the decreased reproduction of invasive species.

The attractiveness of gene drives is found in their ability to offer new strategies for conservation when other methods are ineffective. For instance, a study conducted by Antoni Margalida outlines the use of supplementary feeding strategies in rearing bearded vulture chicks, a Red List species, in the Spanish Pyrenees. Despite his research demonstrating a widespread use of supplementary food provisions in the conservation of scavenger species (Margalida 2010, 673), the strategy was ineffective in increasing the success of rearing the chicks. Margalida concludes his research paper by considering the application of other conservation strategies whereby humans intervene in the procuring of necessary resources for the bearded vultures’ wellbeing. Nevertheless, the proposed functions of gene drive engineering could be beneficial in efforts to optimise the chicks’ survival. Since the technology promises to be “effective in reaching the entirety” of a target-specific population (Sandler 2019, 223), gene drives are considered a potentially groundbreaking conservation method.

Furthermore, a feature unique to gene drive engineering is the use of modification technology (such as CRISPR) to actively copy a fabricated mutation from one individual’s chromosome to its partner chromosome (Caplan et al. 2015, 1422). This process means that almost all of a parent’s offspring will inherit the same mutation (desired trait). In contrast, other forms of genetic modification modify only one chromosome (Esvelt and Gemmell 2017, 3), resulting in a 50:50 chance of inheritance. Over generations, this continuous inheritance would significantly alter the population of a species, also impacting other species that rely on it for sustenance.

Gene drives entail the biased inheritance of a selected genetic trait, meaning that its likelihood of passing from a parent to its offspring is optimal. In order to better understand the methods that could benefit the conservation of Red List species like the bearded vulture, an exploration of research conducted by The National Academies of Science, Engineering, and Medicine will prove useful. In a collaborative publication, researchers from the association explain that gene drives offer two key population control methods. The first of these methods is called population replacement, which refers to the “spread of a genetic element through a population that causes a population’s genotype to change” (The National Academies of Science, Engineering, and Medicine 2016, 16). Consequently, a species is “replaced” because its genetic makeup changes as new generations carry the desired mutation. This method could be applied to projects like the conservation of bearded vultures in the Spanish Pyrenees by optimising chicks’ digestive systems in attempts to decrease the (hatchling) mortality rate.

On the other hand, the second method is called population suppression, referring to the “spread of a genetic element that causes the number of individuals in a population to decrease” (The National Academies of Science, Engineering, and Medicine 2016, 16). With this method, the biased trait inherited by a parent’s offspring may be maleness, for instance, resulting in decreased overall fertility of a population. Population suppression aims to decrease the population of invasive species in an effort to conserve local biodiversity. Therefore, the application of gene drive engineering to endangered and invasive species is a crucial development that proposes to effectively target an entire local population of a species.

Nonetheless, a series of ethical questions arise in discussions surrounding the use of gene drive engineering. For decades, animal rights theorists have debated whether “wildlife policy” (Gamborg, Palmer, and Sandoe 2012), guidelines for human interference in non-human livelihoods, should leave non-domesticated animals alone. In particular, many traditional animal rights perspectives have argued that humans have no right or duty to manage non-domesticated animals. In this view, animals have shared capacities with humans, such as the ability to feel pain or self-sustain, implying their ownership of moral rights. Hence, they maintain that animals possess the (moral) right to live without human meddling, as seen in confinement, culling, and other forms of management.

However, in debates concerning the extent of human interference in non-human livelihoods, “respect for nature” perspectives have also emerged (Gamborg, Palmer and Sandoe 2012). This view often advocates for human interference insofar as it protects the integrity of an ecosystem. It also maintains that species’ moral significance depends on “how far they promote or threaten the key environmental values at stake” (Gamborg, Palmer and Sandoe 2012). Thus, while traditional animal rights theorists argue that humans should not interfere with non-domesticated animals, other perspectives maintain that a species may be protected or culled depending on how it alters the perceived value of its ecosystem. Since the new gene drive technology places a focus on target species themselves instead of conditions affecting the species, it is important to consider the potential consequences of interacting with non-human communities.

In their research report, Caplan et al. claim that manipulating non-human species’ genes could have detrimental effects, “not all of which concern only humans, but also other species and the environment” (Caplan et al. 2015, 1421). Consequently, the human interference and management of (non-domesticated) species have crucial implications for the ecosystems in which they live. Alongside the target species, gene drives have the potential to disrupt the livelihoods of many others due to the impact of population suppression on food webs, for instance. The research report also demonstrates that several academic centres and private biotechnology labs have started to investigate the reduction of some insect species’ lifespans and reproduction in efforts to prevent the spread of diseases they may carry to humans (Caplan et al. 2015, 1422). While humans may consider these insects pests, one must also consider the consequences of reducing their populations for species that rely on them as food sources. Therefore, although this approach to gene editing appears useful at first glance, one must consider its impact on communities other than humans.

Another concern raised by these researchers regards oversight of the modification and release of genetically edited organisms. Specifically, they draw on the necessity of effectively monitoring organisms edited by gene drive technology. Claiming that the current framework for international regulations fails to “foster public trust in the safety” of the technology (Caplan et al. 2015, 1422), they are sceptical about the management of genetically modified organisms in the wild. Their concern further highlights the stakes of the debate on whether humans should interfere with non-human livelihoods, especially when the capabilities and usefulness of human management are questionable.

Therefore, developments in gene drive research bring forth a host of ethical discussions surrounding human intervention and management of other species. Notably, one must question whether humans have responsibilities to maintain in their interactions with non-human communities, and if so, which framework could be applied in this case. While traditional animal rights theorists have long debated the extent of human involvement with non-domesticated species, gene drives entail the direct management of the target species instead of their surrounding environments. Due to this development, a more nuanced conceptual framework is needed.

Donaldson and Kymlicka’s Citizenship Framework and Its Relevance to Gene Drives

Sue Donaldson and Will Kymlicka’s Zoopolis (2011) is considered a widely influential contemporary work in the domain of animal rights theory. Considering the intersection of moral obligations and the various ways non-human animals relate to human societies, they offer a political approach to animal ethics. In doing so, they reflect on “relationships of cooperation, of collective self-government and of histories of interaction and injustice” (Donaldson and Kymlicka 2015). Their ideas are relevant to ethical discussions surrounding gene drives due to the complexity of interspecies relations at play. Nonetheless, before one can apply Donaldson and Kymlicka’s work to the ethical dilemmas of gene drive engineering, a broadened understanding of the connection between citizenship theory and animal ethics in their work is necessary.

An important point of analysis concerns Donaldson and Kymlicka’s conceptualisation of citizenship. In Zoopolis (2011), they begin their discussion of animal rights and citizenship theory by distinguishing between universal (human) rights and citizenship rights. The former, universal rights, do not depend on an individual’s relationship to a particular political community (Donaldson and Kymlicka 2011, 52). Consider an example of passengers disembarking from a plane to illustrate this concept. When the passengers leave the plane, everyone has certain foundational rights, such as the right not to be enslaved and the right not to be killed.

Nonetheless, some passengers, such as tourists, are temporary visitors to the country. These passengers do not have an “unqualified right to enter the country” insofar as they may have needed permission to enter, and they may not have permission to settle permanently (Donaldson and Kymlicka 2011, 51). Similarly, the destination country is not obligated to adapt their political institutions to accommodate the temporary visitors. On the other hand, citizenship rights are dependent on an individual’s relationship to a particular political community. Citizens are the passengers who disembark the aircraft with the unqualified right to enter and reside in the destination country. In this sense, once they enter, citizens are “full and equal members of the political community” (Donaldson and Kymlicka 2011, 51). This means that their concerns and opinions play an equal part in determining what is considered to be the public good. Thus, one always has universal rights regardless of their location and relationship to a particular political community. Nonetheless, one only has citizenship rights when they are situated within a political community in which they are a member.

However, Donaldson and Kymlicka’s extension of animal rights via citizenship theory emphasises that the analogy of passengers disembarking the plane is an oversimplification of reality. While it paints a clear picture of what is meant by “universal rights” and “citizenship rights”, the authors imply that the rigid categories of citizen and non-citizen do not reflect reality. In a later publication, they expand on this notion, claiming that there are “various ‘in-between’ categories of people who are more than mere visitors but not (or not yet) citizens” (2015). For instance, immigrants may receive residence permits for long-term stays in a country. In this case, they have a different political standing from temporary visitors despite not having citizenship. Yet, they also have a different political standing from citizens. Nonetheless, despite categorisations of citizens, non-citizens, and those in between, an underlying principle within Donaldson and Kymlicka’s Zoopolis is that “universal human rights under-determines one’s legal rights and political status” (2015).

Donaldson and Kymlicka apply their understanding of citizens, non-citizens, and those in between to animal rights. Like humans, they suggest that the moral standing of non-human animals under-determines the rights humans owe to them. Nevertheless, they maintain that the rights owed to animals “will vary with the types of relationships they have with human communities” (2015). Aiming to demonstrate that a framework of citizenship theory can be applied to animal rights, Donaldson and Kymlicka propose three descriptions of animals that will prove useful in distinguishing the characteristics of a citizen. The first description concerns animals who are fellow citizens of a (human) political community. The two authors explain that these animals have the right to reside in and return to the shared political community while also having the right to the inclusion of their interests in determining the public good (2011, 53). Animals that are fellow citizens tend to be domesticated animals due to the intimacy and proximity of their relations with humans.

Next, Donaldson and Kymlicka describe animals who are citizens of their own separate communities, situated in their own bounded territories that are not shared with humans. In regard to these animals, the main obligation humans have towards them is “to comply with fair terms of intercommunity interaction” (Donaldson and Kymlicka 2011, 58), meaning that humans should not intervene in the framework of their community. Therefore, Donaldson and Kymlicka maintain that animals that are members of their own separate communities are generally considered wild animals, vulnerable to “human invasion and colonization” (Nurse and Ryland 2013, 203).

Lastly, the third description concerns animals that are residents of the human political community without being full citizens. Donaldson and Kymlicka claim that the main obligation humans have towards them is “to respect their rights as side-constraints on how we pursue our public good” (2011, 53). These animals may be described as “liminal opportunist animals” (Nurse and Ryland 2013, 203) due to their choice to move in or out of areas of human habitation. Thus, Donaldson and Kymlicka provide three descriptions of animals that function as the basis on which non-humans can be included in the political framework of citizenship theory.

Moreover, a significant feature considered to be a characteristic of citizenship in the theory is political agency. Donaldson and Kymlicka claim that if they “accepted that animals are incapable of domestic political agency, it would not follow that citizenship theory is irrelevant to thinking about their rights” (2011, 53). In this sense, political agency is not a criterion of citizenship; it is one of several features. However, they maintain that animals can be capable of political agency, reconceptualising the term as a “cluster of values” (2011, 53) such as autonomy, trust, authenticity and self-determination. In this regard, acknowledging someone’s citizenship means respecting these values.

Donaldson and Kymlicka also endorse animal or human citizenship through a “‘dependent’, ‘assisted’ or ‘interdependent’ agency” (2011, 60). This form of agency offers an inclusive perspective on the values it entails. One may reflect on moments in which everybody is, at some point, in need of assisted agency. For example, young children need assisted agency to help them understand new phenomena and express their frustrations. This form of agency can range from the explanation of political debates to the expression of trust seen in puppy training classes. Consequently, Donaldson and Kymlicka argue that a notion of citizenship should uphold the value of agency while also acknowledging that “capacities for agency expand and contract over time” (2011, 60). Hence, agency is not a rigid criterion of citizenship. Instead, it unravels through one’s interactions with others.

Overall, Donaldson and Kymlicka’s application of citizenship theory to political animal rights provides an interesting foundation for exploring the ethical dimensions of gene drive engineering. Notably, their argumentation can serve as a framework for understanding the status of individuals in relation to a political community. In the context of gene drive engineering, the manipulation of non-human animals raises questions about the rights and ethical considerations owed to them. An especially relevant reflection includes Donaldson and Kymlicka’s three descriptions of animals: fellow citizens of a political community, citizens of their own separate communities, and those who may be residents of a political community without full citizenship. A fruitful discussion of this conceptualisation in the ethics of gene drive engineering can consider potential differences in obligations towards animals based on which of the three descriptions fits them best.

Similarly, Donaldson and Kymlicka’s emphasis on the role of political agency is also relevant to ethical discussions about gene drives. Since they acknowledge that an animal may require a form of assisted agency, one may consider applying it to genetic modifications in cases such as reducing disease susceptibility. Alongside this, an evaluation of the ethical concerns surrounding gene drive engineering may consider the modification’s impact on an animal’s autonomy, trust, self-determination, etc. Since these are some of the values that constitute political agency, a discussion of how it may influence human intervention is relevant.

Applying Donaldson and Kymlicka’s Citizenship Framework to Human Intervention via Gene Drives

When applying Donaldson and Kymlicka’s citizenship framework to human intervention via gene drives, it is useful to consider the ethical implications of directly managing each of the three animal categories. Since they maintain that wild non-citizens, (non-human) citizens, and liminal residents without citizenship are owed different moral obligations, the degree of intervention permitted may differ. Therefore, their framework can help unravel whether managing non-humans in gene drive modification is too intrusive and, if not, when it may be an ethically viable option.

Donaldson and Kymlicka suggest that wild animals neither want nor need an active relationship with humans, especially not the direct management of their livelihoods. As a result, they advocate for wild animal sovereignty, which means that wild animals are free of human management insofar as they meet their own social and sustenance needs. Nonetheless, the authors provide a more nuanced view than the traditional animal rights approaches arguing that humans should leave wild animals alone entirely. At the same time, their view is more considerate of animals’ universal rights than the “respect for nature” perspectives that endorse the management of non-humans based on their own ideas of an ecosystem’s worth (Gamborg, Palmer, and Sandoe 2012). Notably, the authors claim that the question one should ask is: “what are the appropriate sorts of relations between human and wild animal communities?” (Donaldson and Kymlicka 2011, 166). In this sense, they do not believe that there should not be any relationships between humans and wild animals at all. Yet, they also do not support an active relationship that manages and may ultimately affect their capabilities to self-sustain. Thus, Donaldson and Kymlicka provide an approach to human intervention that considers the intricacy of the balance between meddling and conservation.

Additionally, they claim that although humans should be careful in justifying interference with non-human communities, “this does not mean that all conservation interventions are illegitimate” (Donaldson and Kymlicka 2011, 180). Consequently, their framework aspires to provide a conceptual lens through which humans recognise that they have no right to dominate animal territories while acknowledging that they may react to urgent circumstances, such as a species’ addition to the Red List. Therefore, one could apply this notion to gene drive modification by considering it a potential last resort. The nature of gene drives is more intrusive than other conservation methods as it affects the target animals directly. Despite this intrusiveness, the framework may be compatible with using population replacement gene drive modification in dire wild animal cases whereby other conservation strategies are either unsuccessful or do not achieve results fast enough. One could argue this is the case in Margalida’s study of rearing bearded vulture chicks (2010).

Furthermore, within Donaldson and Kymlicka’s framework, domesticated animals are the only non-humans considered fellow citizens to humans. Although they reflect on how domestication has been historically exploitative (2011, 88), domesticated animals have formed co-dependent interspecies relationships with humans that are compatible with co-citizenship. Their domestication has caused them to adapt to human society, which “closes off their alternatives” (Nurse and Ryland 2013, 203). Thus, in Donaldson and Kymlicka’s framework, their preferences should be considered in the determination of the public good. While non-human animals cannot vote in elections, for instance, their active presence in a community suggests that they have a moral status that deserves equal consideration to all other (human) citizens. As citizenship entails active participation in a political community, domesticated animals have responsibilities to humans, too, such as the responsibility (to be trained) not to bite them. This notion reflects the equal standing of domestic animals in a community.

Therefore, following the conceptualisation of domesticated animals as citizens in (human) political communities, one must question whether gene drives could permissibly be used to optimise the genetic makeup of a fellow citizen. As Donaldson and Kymlicka argue that not all conservation methods are illegitimate, the same line of argumentation could be applied to one’s fellow citizens, regardless of species. Donaldson and Kymlicka hold that “new models of ‘dependent agency’ or ‘supported decision-making’” are required (2011, 59) when considering an animal’s best interests in topics like gene drive engineering. They refute outdated models such as paternalistic guardianship whereby a human will make decisions about an animal such as their pet. Instead, they advocate for updated models that seek ways of “eliciting a person’s sense of their subjective good, often through ‘embodied’ rather than verbal communication” (2011, 59).

Similarly, human citizens also require assisted or dependent agency, such as when suffering from illness. In these situations, loved ones often make decisions on behalf of an individual, upholding Donaldson and Kymlicka’s values of agency, such as trust, which unravel in their relationships. A similar circumstance may occur for domesticated animals, such as genetically modifying dogs carrying the canine parvovirus – a genetic virus “quickly spread among dog populations all over the world with high morbidity” (Li et al. 2017). In this case, the nature of dogs’ subjective good within a political community is discovered through learning their temperaments in unravelling interspecies relations with them. Assisted agency could be applied, meaning that a human may choose to use population replacement gene drives, removing the parvovirus carrier gene to ensure the health of generations of dogs with whom they work and interact.

However, while animal citizens of (human) political communities have responsibilities towards humans and vice versa, animals in their own external communities also have relationships with each other. Donaldson and Kymlicka argue that humans must “comply with fair terms of intercommunity interaction” (2011, 58). This principle should apply to both wild and liminal non-citizens, even when humans may not fully understand their intricate relationships with each other. Thus, one may argue that gene drives can potentially disrupt the frameworks of non-human communities, regardless of how their internal relations manifest. This is especially the case in population suppression gene drives since the decision to decrease a species’ local population threatens the target and all other species with which it interacts. In a risk assessment of gene drive engineering, research from the International Risk Governance Center demonstrates that the (re)introduction of a modified species can impact the health of other animal and plant species (Kuzma 2023, 55). Consequently, human interference in non-human livelihoods via gene drives does not comply with the intercommunity interaction terms established by Donaldson and Kymlicka. This is because the terms suggest that humans have no right to alter the structures and relationships between beings in communities where they are not members.

The dilemma gene drives face in the terms of fair intercommunity interaction is also echoed in the research report of Caplan et al. (2015). Suppose humans are permitted to intervene in non-human communities using gene drives. In that case, their management capabilities must be adequate to avoid disrupting the constitution of ecosystems, at least to some extent. Nonetheless, the report demonstrates that many national and international regulations are insufficient in addressing the impact of genetically modifying organisms on other species within their ecosystems (Caplan et al. 2015, 1422). Consequently, one may argue that human regulatory bodies must strive to improve the effectiveness of their management before the application of gene drives to any non-citizen animals becomes compatible with Donaldson and Kymlicka’s citizenship framework. This conclusion is important because although the potential application of gene drives to domesticated animals may uphold mutual agency in cases such as canine parvovirus, almost all Red List species are non-domesticated (Hogeback 2023). Thus, their citizenship framework is useful because its applications can help identify additional work needed to ensure humans do not overstep the boundaries of fair intercommunity interaction in conservation.

Meanwhile, discussions surrounding human intervention in liminal non-citizen livelihoods may be considered even more complex. Liminal animals hold a political status in between that of citizens and non-citizens since they depend on human communities to some extent, e.g., for food sources, but do not actively interact with humans. Consequently, this limited degree of dependence means humans must “respect their rights as side-constraints on how we pursue our public good” (Donaldson and Kymlicka 2011, 53). In considering the extent of intervention via gene drives, it is difficult to determine whether humans may modify liminal animals to optimise their health, as one may allow in the case of domesticated animals, or to treat gene drives as a potential last resort, as argued in the case of Red Listed wild animals. In addressing this dilemma, one may consult a response to other liminal animal dilemmas like predation, as seen in a journal article by Andrée-Anne Cormier and Mauro Rossi (2016).

In their discussion of liminal animals, Cormier and Rossi demonstrate some assumptions made by Donaldson and Kymlicka in their framework. The first relevant to human intervention via gene drives is that liminal animals choose to avoid humans. The second assumption is that they would prefer the risks posed by other species and their environments to restrictions of liberty (Cormier and Rossi 2016, 731). In response to these assumptions, Cormier and Rossi claim that liminal animals’ aversion to human intervention loses moral weight when their fundamental, universal rights are at stake (2016, 732). As Donaldson and Kymlicka intend to include animals in the human citizenship framework, they should be treated in the same way as humans. In particular, Donaldson and Kymlicka liken liminal species to human denizens (Donaldson and Kymlicka 2011; Cormier and Rossi 2016) – long-term residents settled within a state’s borders while not possessing citizenship. Yet, even for human denizen groups that opt out of political membership, the state may intervene in managing threats to their safety and livelihoods. In this sense, like wild animals, one may consider using gene drives as a last resort in conserving endangered liminal species.

However, Cormier and Rossi’s article discusses predation, which entails a host of dilemmas concerning the risks some species pose to others. As a result, they identify the incompatibility of Donaldson and Kymlicka’s framework with interventions to prevent one non-human animal from harming another due to the notion that liminal (and wild) animals are capable of navigating observable risks in their own communities. This incompatibility is arguably reflected in applying their framework to population suppression gene drives since they include the reduction of populations considered invasive and posing risks to other species, human or otherwise. Nevertheless, it does not mean the citizenship framework is also incompatible with population replacement gene drives.

As seen in their potential to optimise domesticated animal citizens’ health and to aid the conservation of non-citizen Red List species as a last resort, population replacement gene drives appear to fit into Donaldson and Kymlicka’s framework. Since the method tackles often unobservable and genetic risks to animals that may not be instinctively detected in the way pigeons may evade cats, it is not plausible to rule out population replacement alongside population suppression. Thus, although the potential applications of population replacement should differ between citizens and non-citizens, Donaldson and Kymlicka offer a nuanced framework that helps navigate a discussion on the degrees of human intervention for animals with different political statuses in light of the expanding Red List and other risks to non-human health.

Conclusion

In conclusion, Donaldson and Kymlicka’s citizenship framework, applied to the ethical dimensions of human intervention via gene drive engineering, offers valuable insights into the intricate relationships between humans and animals. In analysing their framework, this paper explores the moral obligations owed to different categories of non-human animals and the ways in which these apply to the potential use of gene drives.

Within Zoopolis (2011), the authors distinguish three categories of animals: fellow citizens, wild animal citizens of separate sovereign communities, and liminal residents. By analysing the rights and responsibilities associated with each category, one can develop a nuanced understanding of the extent to which human intervention via gene drives may be ethically permissible. While (population replacement) gene drives may be considered respectful of these rights when optimising domesticated animals’ health or as a last resort for conserving Red List species, the framework suggests that interventions should be carefully weighed against the autonomy of non-human animals.

Furthermore, it is important to consider the concept of political agency within Donaldson and Kymlicka’s framework and its relevance to gene drive ethics. By acknowledging that animals possess political agency, although different from human agency, one must recognise the importance of respecting their interests and subjective good in decision-making processes. This perspective demonstrates the need for inclusive models of decision-making that allow a reflection on the livelihoods of non-human animals affected by gene drive interventions that move beyond domination and paternal guardianship.

Nonetheless, further complexities must be explored when applying this framework to gene drive technology, particularly concerning fair intercommunity interaction and the potential disruption of non-human communities. While gene drives offer conservation methods that can affect entire populations, they also pose significant risks to ecosystem integrity and the liberty of non-human species. Donaldson and Kymlicka’s framework is useful in discussing these complexities because it acknowledges that there is no singular, fixed answer to questions surrounding human intervention. Therefore, the extent of this intervention must differ for different groups of animals, following the various degrees to which they interact with human communities.

Meanwhile, the type of intervention is important, too. Gene drives may be considered more intrusive than other conservation strategies, as they affect the target species rather than its surrounding environment. Consequently, the citizenship framework is incompatible with population suppression gene drives. For Donaldson and Kymlicka, one must respect that (wild and liminal) animals are capable of navigating observable risks in their own communities. Alternatively, population replacement gene drives appear to be compatible with Donaldson and Kymlicka’s approach, given their potential to optimise domesticated animal citizens’ health and to aid the conservation of non-citizen Red List species as a last resort. Nonetheless, this compatibility requires that a more effective regulatory framework is developed to avoid as much disruption to ecosystems as possible.

Overall, Donaldson and Kymlicka’s citizenship framework provides a useful conceptual lens for navigating the ethical complexities of human intervention with non-human species in gene drive engineering. By emphasising the importance of respecting the rights owed in various political communities, the framework encourages a nuanced approach in light of the expanding Red List and other risks to non-human health.


Bibliography

Caplan, Arthur L, Brendan Parent, Michael Shen, and Carolyn Plunkett. 2015. “No time to waste – the ethical challenges created by CRISPR.” EMBO reports 16, no. 11 (2015): 1421-1426. https://doi.org/10.15252/embr.201541337.

Cormier, Andrée-Anne, and Mauro Rossi. 2016. “The Problem of Predation in Zoopolis”. Journal of Applied Philosophy 35, no. 4 (2016): 718-736. https://doi.org/10.1111/japp.12250.

Donaldson, Sue, and Will Kymlicka. 2011. Zoopolis. Oxford: Oxford University Press.

Donaldson, Sue, and Will Kymlicka. 2015. “From Polis to Zoopolis: A Political Theory of Animal Rights.” In Ethics in Canada: Ethical, Social and Political Perspectives, edited by Karen Wendling. Oxford: Oxford University Press.

Esvelt, Kevin M., and Neil J. Gemmell. 2017. “Conservation demands safe gene drive.” PLoS Biology 15, no. 11 (November): e2003850. https://doi.org/10.1371/journal.pbio.2003850.

Gamborg, Christian, Claire Palmer, and Peter Sandoe. 2012. “Ethics of Wildlife Management and Conservation: What Should We Try to Protect?” Nature Education Knowledge 3, no. 10 (2012). https://www.nature.com/scitable/knowledge/library/ethics-of-wildlife-management-and-conservation-what-80060473/.

Hogeback, Jonathan. 2023. “What Makes a Species Endangered?” Encyclopedia Britannica, June 1, 2023. https://www.britannica.com/story/what-makes-a-species-endangered.

Kuzma, Jennifer. 2023. “Gene drives: Environmental impacts, sustainability, and governance.” In Ensuring the environmental sustainability of emerging technologies – 2, edited by M. V. Florin, 53-71. Lausanne: EFPL. https://doi.org/10.5075/epfl-irgc-298445.

Li, Gairu, Senlin Ji, Xiaofeng Zhai, Yuxiang Zhang, Jie Liu, Mengyan Zhu, Jiyong Zhou, and Shuo Su. 2017. “Evolutionary and genetic analysis of the VP2 gene of canine parvovirus.” BMC Genomics 18, no. 534 (2017): PMCID: PMC5512735. https://doi.org/10.1186/s12864-017-3935-8.

Margalida, Antoni. 2010. “Supplementary feeding during the chick-rearing period is ineffective in increasing the breeding success in the bearded vulture (Gypaetus barbatus).” European Journal of Wildlife Research 56 (2010): 673-678. https://doi.org/10.1007/s10344-010-0366-0.

Nurse, Angus, and Diane Ryland. 2013. “Review: A Question of Citizenship.” Journal of Animal Ethics 3, no. 2 (Fall): 201-207. https://www.jstor.org/stable/10.5406/janimalethics.3.2.0201.

Sandler, Ronald. 2019. “Should We Engineer Species in Order to Save Them?” Environmental Ethics 41, no. 3 (Fall): 221-236. https://doi.org/10.5840/enviroethics201941323.

The National Academies of Science, Engineering, and Medicine. 2016. Gene Drives on the Horizon: Advancing Science, Navigating Uncertainty, and Aligning Research with Public Values. Washington, DC: The National Academies Press. https://doi.org/10.17226/23405.