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2020

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Scaling And Ecological Relationships In The Visual Ecology Of Sharks, Brianna Hall Jan 2020

Scaling And Ecological Relationships In The Visual Ecology Of Sharks, Brianna Hall

College of Graduate Studies: Theses & Dissertations

Adaptations of visual systems, such as acuity, sensitivity, and eye size can be used to infer the relative importance of vision to an organism. The high metabolic cost of visual system development and maintenance suggests that large relative eye size (as it relates to body length) may have a significant ecological or evolutionary role. Elasmobranchs are morphologically diverse and inhabit a wide range of marine and freshwater niches. As energetic and ecological demands shift over time, several species occupy different predatory niches across their lifetime, yielding a large array of visual habitats. Additionally, eye size changes with body length allometrically, …

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Preserving Nature For The Benefit Of All Sentient Individuals, Eze Paez Jan 2020

Preserving Nature For The Benefit Of All Sentient Individuals, Eze Paez

Animal Sentience

I agree with Treves et al.’s proposal for a preservation ethics based on the principle that nonhuman well-being is a matter of justice and compassion. In this commentary, I advance two objections. First, only sentient beings, rather than all life, belong in the moral community. Second, given that nature is probably harmful overall for sentient individuals, preserving it for the benefit of future human and nonhuman generations requires us to modify it as far as practicable.

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Selling Just Preservation, Scott W. Danielson, Andrew J. Vonasch Jan 2020

Selling Just Preservation, Scott W. Danielson, Andrew J. Vonasch

Animal Sentience

Treves et al. argue for better representation of voiceless groups in current policy decisions. We agree with the argument but believe it will be challenging to convince enough people of its importance to change policy — especially those political groups who are not predisposed to agreeing with these kinds of arguments. We draw on the social psychology literature to recommend three principles for increasing the persuasiveness of the argument to the public: pre-suasion, framing, and tailoring for the audience. We apply these principles to make concrete recommendations for framing the argument to persuade the American political right.

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Comparative Cognition And Nonhuman Individuality, Catia Correia Caeiro Jan 2020

Comparative Cognition And Nonhuman Individuality, Catia Correia Caeiro

Animal Sentience

Commentators Washington (2019) and Tiffin (2019) point out that the individual vs. collective dichotomy is much more complex than what is considered in the target article. This commentary will focus on why individuals are more important than collectives. Species differences in cognition and emotional processes and individuals’ feelings and experiences need to be taken into account.

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Group Stereotypes: Human And Nonhuman, Verónica Sevillano Jan 2020

Group Stereotypes: Human And Nonhuman, Verónica Sevillano

Animal Sentience

Treves et al.’s target article emphasizes the importance of including nonhuman animals in the scope of conservation frameworks, countering an anthropocentric orientation in conservation biology. In support, I discuss how stereotypes of other animal species may bias our behavior toward them.

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Game Theory And Artificial Intelligence In Just Preservation, David L. Dowe, Nader Chmait Jan 2020

Game Theory And Artificial Intelligence In Just Preservation, David L. Dowe, Nader Chmait

Animal Sentience

We humans can show presumption, arrogance and many dubious traits. By virtue of being land-dwelling, dexterous, relatively intelligent, and having good communication hardware and (good) fortune, we have for recent millennia largely had dominion of our planet. Yet humans often do not treat themselves (let alone other species) particularly well. Treves et al.’s idea of a multispecies justice system — not “prioritizing humans” but “finding practical ways to work within human systems” — invites consideration.

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Just Preservation, Trusteeship And Multispecies Justice, Francisco J. Santiago-Ávila, Adrian Treves, William Lynn Jan 2020

Just Preservation, Trusteeship And Multispecies Justice, Francisco J. Santiago-Ávila, Adrian Treves, William Lynn

Animal Sentience

We are grateful to all the commentators who engaged with our target article. Some commentators have offered important insights into our proposed design and methods for legally intervening on behalf of futurity. Others have focused on theoretical considerations central to our proposal for multispecies justice and trusteeship. All have inspired modifications and further elaboration of our initial proposal. In this Response, we engage with the commentaries, integrating their suggestions, striving for convergence and complementarity, but also discussing points of divergence with our proposed framework where necessary. There is substantial overlap in the points of view of the three co-authors, but …

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How To Engage Public Support To Protect Overlooked Species, Scarlett R. Howard, Adrian G. Dyer Jan 2020

How To Engage Public Support To Protect Overlooked Species, Scarlett R. Howard, Adrian G. Dyer

Animal Sentience

Treves et al. (2019) propose a non-anthropocentric approach to conservation biology for the ‘just preservation’ of non-humans. Some of our current ways of ranking conservation efforts based on benefits to humans are indeed critically flawed, but we doubt that a completely non-anthropocentric approach is possible at this time. We propose a way to generate public support for those non-human species that may otherwise be overlooked in policy-making and conservation efforts.

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Rewilding Or Reviewing: Conservation And The Elephant-Based Tourism Industry, Ingrid Suter Jan 2020

Rewilding Or Reviewing: Conservation And The Elephant-Based Tourism Industry, Ingrid Suter

Animal Sentience

Baker & Winkler (2020) provide a detailed examination of elephants in captivity, from an historical perspective to modern-day concerns. Concerns include the poor level of mahout skills and subsequent captive elephant welfare issues in the Thai elephant tourism industry. Rewilding is proposed as a method of rehabilitation and a way to include mahouts in the conservation process. This commentary argues that the tourism industry is making positive changes and mahout skills can be utilised successfully without the arduous task of rewilding. Animal rights groups and the transfer of misinformation surrounding captive elephant welfare are also examined, as these typically fail …

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Anthropology And Conservation, Nicolas Lainé Jan 2020

Anthropology And Conservation, Nicolas Lainé

Animal Sentience

Baker & Winkler make a welcome contribution to elephant conservation in Thailand in advocating a role for joint human/elephant labor and local expertise in rewilding. Their argument would benefit, however, if it drew more upon the local ethnographic evidence. Ethnocentric notions such as “welfare” and “wellbeing” may not fit into the local perception of pachyderms.

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Animal Welfare Science And “A Life Worth Living” For Wild And Captive Elephants, Lindsay R. Mehrkam, Otto Fad Jan 2020

Animal Welfare Science And “A Life Worth Living” For Wild And Captive Elephants, Lindsay R. Mehrkam, Otto Fad

Animal Sentience

Baker & Winkler (2020) propose restoring elephants to a state of “wildness” and a “life worth living” by reintroducing captive elephants to the hands of indigenous mahout cultures and practices. To evaluate this proposal, we must define operationally a number of critical concepts in a species-centric, individualistic way, avoiding human-centric opinions and romanticized notions of the wild. Animal welfare science can help create greater synergy between ex-situ zoological institutions and in-situ elephant conservation, and welfare efforts that respect and value the cultures of both species.

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Philosophy, Ecology And Elephant Equality, Rebekah Humphreys Jan 2020

Philosophy, Ecology And Elephant Equality, Rebekah Humphreys

Animal Sentience

The considerable conservation research on environmental problems and climate change tends to focus on species “biodiversity” rather than individuals. Individuals of the same species get categorized as “wild” or “captive”, with the latter often omitted from conservationists’ concerns. But wild and captive animals, although they may require different treatment, have comparable interests as individuals. Equity requires taking this into account in conservation efforts.

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Rethinking Rewilding Through Multispecies Justice, Danielle Celermajer Jan 2020

Rethinking Rewilding Through Multispecies Justice, Danielle Celermajer

Animal Sentience

Baker & Winkler’s argument that some humans, especially some Indigenous peoples, neither conceive of themselves as ontologically distinct from nature, nor do they organize their lives as such, is an important one. However, one needs to understand how colonialism and global capitalism have drawn Indigenous peoples and animals into new political economies. The new situation and the constrained opportunities available may have introduced a range of injustices or forms of violence that did not previously exist. This commentary proposes how a multispecies justice lens might assist in evaluating the most just arrangement for all parties, human and non-human.

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A “Halfway House” For Improving Captive Welfare, Phyllis C. Lee, W. Keith Lindsay Jan 2020

A “Halfway House” For Improving Captive Welfare, Phyllis C. Lee, W. Keith Lindsay

Animal Sentience

It is certainly time to aim for higher quality management strategies for Thailand’s captive elephants, and to engage with sustainable livelihoods for traditional mahouts. Baker & Winkler’s proposal to rewild Thai elephants by placing them under the guardianship of Karen mahouts is recognized as not “wild” since it remains a form of management requiring elephants to live under the control of human caregivers. We applaud the positive welfare aims of this proposal; however, we caution that few of the long-term consequences for elephants or habitats can be known, and further considerations of elephant population dynamics and forest ecosystems are required …

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Compassionate Conservation And Elephant Personhood, Arian D. Wallach, Sujeewa Jasinghe, Sudarshani Fernando, Jessica Bell Rizzolo Jan 2020

Compassionate Conservation And Elephant Personhood, Arian D. Wallach, Sujeewa Jasinghe, Sudarshani Fernando, Jessica Bell Rizzolo

Animal Sentience

Baker and Winkler (2020) advocate a rehabilitation program that would end the oppression of elephants — not by severing human-elephant relations, but by enabling human-bonded elephants to live a full life. We consider this program within a compassionate conservation framework, which recognises all sentient beings as persons. From this vantage point, we gaze further into the future to ask what direction just human-elephant relations could take: What could emerge from a human-elephant relation once elephants are no longer enslaved and requiring rescue? We envisage a future — beyond captivity and rewilding — of elephant sovereignty.

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Rewilding And Domestication: Clarifying Terminology, Catia Correia-Caeiro Jan 2020

Rewilding And Domestication: Clarifying Terminology, Catia Correia-Caeiro

Animal Sentience

Baker & Winkler (B&W) describe the state of Asian elephant conservation, raising unique issues, and proposing a direction based on rewilding. The long history and socio-biology of elephants and humans has some parallels with the domestication of dogs (and other species). However, markers of domestication seem absent from elephants. The proper use of terms such as “wild” and “domestic” is crucial in defining the best conservation strategies, and, more important, in attending to the welfare needs of individuals, which can differ between wild and domestic animals. B&W’s target article represents an important starting point for discussion around elephant conservation, but …

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Future Of Thailand's Captive Elephants, Antoinette Van De Water, Michelle Henley, Lucy Bates, Rob Slotow Jan 2020

Future Of Thailand's Captive Elephants, Antoinette Van De Water, Michelle Henley, Lucy Bates, Rob Slotow

Animal Sentience

Removal from natural habitat and commodification as private property compromise elephants’ broader societal value. Although we support Baker & Winkler’s (2020) plea for a new community-based rewilding conservation model focused on mahout culture, we recommend an expanded co-management approach to complement and enhance the regional elephant conservation strategy with additional local community stakeholders and the potential to extend across international borders into suitable elephant habitat. Holistic co-management approaches improve human wellbeing and social cohesion, as well as elephant wellbeing, thereby better securing long-term survival of Asian elephants, environmental justice, and overall sustainability.

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Rewilding And Mixed-Community Collaboration In Conservation, Liv Baker Jan 2020

Rewilding And Mixed-Community Collaboration In Conservation, Liv Baker

Animal Sentience

Rewilding is a psychological and sociocultural event for nonhuman animals that goes beyond the traditional framework of ecology. Elephants need to be seen as political agents in a collaboration. Our commentators shed light on the hierarchical assumptions and politics involved. Mixed-community collaboration can create dynamic and sustainable conservation interventions that are crucial to reconceptualizing the human-elephant relationship beyond the concept of labor. The profound effects of the Covid-19 pandemic have laid bare the fundamental vulnerabilities of the elephant tourism industry. Moreover, how well an elephant has been buffered by the fallout of the pandemic is dependent on the specific relations …

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Development Of A Novel Highly-Sensitive Brucellosis Sensor Based On Surface Plasmon Resonance Spectroscopy, Amal Kasry, Ihab Adly, Asharf Sayour, Hossam Sayour Jan 2020

Development Of A Novel Highly-Sensitive Brucellosis Sensor Based On Surface Plasmon Resonance Spectroscopy, Amal Kasry, Ihab Adly, Asharf Sayour, Hossam Sayour

Nanotechnology Research Centre

Brucellosis is considered a significant health threat, it is an infectious disease caused by the bacteria Brucella, which can spread from animals to humans causing severe diseases. Through this project, we aim to develop a very highly sensitive biosensor to detect Brucella early before spreading. This sensor is based on surface plasmon resonance (SPR) technique, which is used to analyze kinetics of interaction between biomolecules. It can detect down to picomolar concentrations of some proteins.

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Can Human Neurological Tests Of Consciousness Be Applied To Octopus?, Benedetta Cecconi, Jitka Annen, Steven Laureys Jan 2020

Can Human Neurological Tests Of Consciousness Be Applied To Octopus?, Benedetta Cecconi, Jitka Annen, Steven Laureys

Animal Sentience

If the anatomy, physiology and behaviour of a species differ substantially from our own, can we infer that the species is unconscious? In the daily clinical care of patients with disorders of consciousness we face many similar challenges: our current approach with these patients - a combination of behavioural and brain imaging-based assessments - might also be a viable route to investigating octopus consciousness.

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Exploring Eight-Armed Intelligence Through Film, Tierney M. Thys Jan 2020

Exploring Eight-Armed Intelligence Through Film, Tierney M. Thys

Animal Sentience

Mather (2019) provides a rich overview of the elements underlying octopus cognition and behavioral flexibility. Recently, two remarkable natural history films, My Octopus Teacher and The Octopus in My House have explored intimate human-octopus relationships with a wild (Octopus vulgaris) and a captive octopus (Octopus cyanea) respectively. Both films show rare behaviors that offer observations to test new hypotheses as well as a novel perspective on our own human relationships and place within the natural world. An interview with filmmaker Craig Foster from My Octopus Teacher reveals the profound and transformative power of forming a trusting …

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Minds Without Spines: Evolutionarily Inclusive Animal Ethics, Irina Mikhalevich, Russell Powell Jan 2020

Minds Without Spines: Evolutionarily Inclusive Animal Ethics, Irina Mikhalevich, Russell Powell

Animal Sentience

Invertebrate animals are frequently lumped into a single category and denied welfare protections despite their considerable cognitive, behavioral, and evolutionary diversity. Some ethical and policy inroads have been made for cephalopod molluscs and crustaceans, but the vast majority of arthropods, including the insects, remain excluded from moral consideration. We argue that this exclusion is unwarranted given the existing evidence. Anachronistic readings of evolution, which view invertebrates as lower in the scala naturae, continue to influence public policy and common morality. The assumption that small brains are unlikely to support cognition or sentience likewise persists, despite growing evidence that arthropods …

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Problems With Basing Insect Ethics On Individuals’ Welfare, Susana Monsó, Antonio J. Osuna-Mascaró Jan 2020

Problems With Basing Insect Ethics On Individuals’ Welfare, Susana Monsó, Antonio J. Osuna-Mascaró

Animal Sentience

In their target article, Mikhalevich & Powell (M&P) argue that we should extend moral protection to arthropods. In this commentary, we show that there are some unforeseen obstacles to applying the sort of individualistic welfare-based ethics that M&P have in mind to certain arthropods, namely, insects. These obstacles have to do with the fact that there are often many more individuals involved in our dealings with insects than our ethical theories anticipate, and also with the fact that, in some sense, some insects count as more than an individual and, in another sense, they sometimes count as less than an …

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Intuition And The Invertebrate Dogma, Jonathan Balcombe Jan 2020

Intuition And The Invertebrate Dogma, Jonathan Balcombe

Animal Sentience

Just as intuition, fueled by hubris, led us to exclude insects from moral consideration, so intuition can lead to the opposite conclusion. Observed insect behavior, combined with scientific support for insect consciousness summarized in Mikhalevich & Powell’s target article, and bolstered by the Precautionary Principle, all militate against completely denying moral status to insects.

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Virtue Ethics And The Likelihood Of Invertebrate Suffering, Jeffrey A. Lockwood Jan 2020

Virtue Ethics And The Likelihood Of Invertebrate Suffering, Jeffrey A. Lockwood

Animal Sentience

Mikhalevich & Powell (2020) review evidence that invertebrates have the capacity to suffer. If they do, then, according to utilitarians (those advocating “the greatest good for the greatest number”) and deontologists (those advocating rights and corresponding duties), research practices and funding policies should be required to protect invertebrates. But if the evidence is mistaken, then, according to utilitarians and deontologists, our constraints would be unjustified and even morally suspect. Virtue ethicists, in contrast, endorse acting rationally in an effort to cultivate the virtues — even if the basis for our action is mistaken. Virtue ethics seems more compelling than the …

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Sentience In Evolutionary Context, Jon Mallatt, Todd E. Feinberg Jan 2020

Sentience In Evolutionary Context, Jon Mallatt, Todd E. Feinberg

Animal Sentience

We appreciate the goals of Mikhalevich & Powell (M&P) and largely agree with their conclusions but we differ on some of their definitions and terms. Affects (emotional feelings) should be part of sentience. Although the evidence presented for insect sentience is strong, we list some of the counterevidence that should be considered. Our own research supports M&P’s choice of arthropods, cephalopods, and vertebrates as the only sentient organisms with moral status.

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Lessons From Miniature Brains: Cognition Cheap, Memory Expensive (Sentience Linked To Active Movement?), Giorgio Vallortigara Jan 2020

Lessons From Miniature Brains: Cognition Cheap, Memory Expensive (Sentience Linked To Active Movement?), Giorgio Vallortigara

Animal Sentience

Studies on invertebrate minds suggest that the neural machinery for basic cognition is cheap, and that bigger brains are probably associated with greater memory storage rather than more advanced cognition. Sentience may be linked to feedforward mechanisms (Reafferenzprinzip) that allow organisms with active movement to distinguish active and passive sensing. Invertebrates may offer special opportunities for testing these hypotheses.

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Insect Sentience And The Rise Of A New Inclusive Ethics, David Baracchi, Luigi Baciadonna Jan 2020

Insect Sentience And The Rise Of A New Inclusive Ethics, David Baracchi, Luigi Baciadonna

Animal Sentience

Welfare protections for vertebrates are grounded in the belief that vertebrates are sentient and capable of feeling whereas invertebrates are not. We agree with Mikhalevich & Powell that the exclusion of small-brained invertebrates from bioethics is not warranted by the current state of the scientific evidence. The choice to promote protection for certain invertebrates should be based on the Animal Sentience Precautionary Principle (ASPP). This principle should not prevent us from conducting experimental research with non-human animals to advance knowledge. However, we believe that it is important to outline practical guidelines to manage the wellbeing of invertebrates, while accumulating further …

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Sentience In All Organisms With Centralized Nervous Systems, Lori Marino Jan 2020

Sentience In All Organisms With Centralized Nervous Systems, Lori Marino

Animal Sentience

Mikhalevich & Powell (2020) argue for considering the welfare of invertebrates, especially insects, by asking whether invertebrates have the cognitive and neural characteristics necessary for sentience. This approach assumes that human neural and cognitive complexity is the basis of sentience. But insight might also be gained by turning this approach on its head and examining the notion that sentience may be a fundamental biological property, appearing very early in the evolution of life in all organisms with centralized nervous systems.

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Ethical Considerations For Invertebrates, Scarlett R. Howard, Matthew R.E. Symonds Jan 2020

Ethical Considerations For Invertebrates, Scarlett R. Howard, Matthew R.E. Symonds

Animal Sentience

Mikhalevich & Powell (2020) have built on the discussion about which species deserve inclusion in animal ethics and welfare considerations. Here, we raise questions concerning the assessment criteria. We ask how to assess different species for their ability to fulfill the criteria, which criteria are most important, how we quantify them (absolute or on a continuum), and how non-animals such as fungi and plants fit into this paradigm.

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