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Full-Text Articles in Ecology and Evolutionary Biology

Anecdotes Can Be Evidence Too, Heather Browning Jan 2017

Anecdotes Can Be Evidence Too, Heather Browning

Animal Sentience

Birch’s criterion for the precautionary principle imposes a high evidential standard that many cases will fail to meet. Reliable, relevant anecdotal evidence suggestive of animal sentience should also to fall within the scope of the precautionary principle. This would minimize potential suffering (as happened in the case cephalopods) while further evidence is gathered.


Animal Pain And The Social Role Of Science, Leslie Irvine Jan 2017

Animal Pain And The Social Role Of Science, Leslie Irvine

Animal Sentience

Assuming that all animals are sentient would mean ending their use in most scientific research. This does not necessarily imply an unscientific or anti-scientific stance. Examining the social role of science reveals its considerable investment in preserving the status quo, including the continued use of animal subjects. From this perspective, the use of animal subjects is a custom that science could move beyond, rather than a methodological requirement that it must defend.


Fishes Are Gaining Academic Respect, Jonathan Balcombe Jan 2017

Fishes Are Gaining Academic Respect, Jonathan Balcombe

Animal Sentience

I respond to five commentaries on my 2016 book What a Fish Knows. The commentaries express more harmony than dissent about my interpretation of fishes as cognitive, aware individuals deserving better treatment by humankind.


A Risk Assessment And Phylogenetic Approach, Culum Brown Jan 2017

A Risk Assessment And Phylogenetic Approach, Culum Brown

Animal Sentience

The precautionary principal is often invoked when talking about the evidence of sentience in animals, largely because we can never be certain what any animal is thinking or feeling. Birch (2017) offers a preliminary framework for the use of the precautionary principal for animal sentience combining an epistemic rule with a decision rule. I extend this framework by adding an evolutionary phylogentic approach which spreads the burden of proof across broad taxonomic groups and a risk assessment component which magnifies the likely impact by the number of animals involved.


Fear And Loathing On The Landscape: What Can Foraging Theory Tell Us About Vigilance And Fear?, Burt P. Kotler, Joel S. Brown Jan 2017

Fear And Loathing On The Landscape: What Can Foraging Theory Tell Us About Vigilance And Fear?, Burt P. Kotler, Joel S. Brown

Animal Sentience

We discuss fear and vigilance from the perspective of foraging theory. Rather than focusing on proximate indicators of fear, we suggest that fear is an adaptation for assigning a cost to activities that incur a risk of injury or death. We use theory to provide definitions for fear and vigilance and then use that theory to compare them. We agree that there are limits to the reliability of vigilance as an indicator of fear, but we arrive at this conclusion differently.


Operationalizing Fear Through Understanding Vigilance, Ralph Adolphs Jan 2017

Operationalizing Fear Through Understanding Vigilance, Ralph Adolphs

Animal Sentience

Beauchamp’s target article raises important questions about the features that often accompany fear. How reliable an indicator of fear is vigilance? Is it constitutive, cause, or consequence of fear? These questions force us towards a clearer definition of “fear.”


Raising The Moral Consciousness Of Science, Bernard Rollin Jan 2017

Raising The Moral Consciousness Of Science, Bernard Rollin

Animal Sentience

Precaution on behalf of sentient animals should not be tempered by the questionable principle of the amorality of science.


The “Precautionary Principle” – A Work In Progress, Shelley Adamo Jan 2017

The “Precautionary Principle” – A Work In Progress, Shelley Adamo

Animal Sentience

The target article by Birch illustrates the practical difficulties with the “Animal Sentience Precautionary Principle” (ASPP) while presenting potential solutions. However, the ASPP will be difficult to use without guidelines detailing how evidence of sentience should be assessed. Moreover, extrapolating conclusions found for a single species to all species within an Order is problematic. Finally, I recommend that Birch demonstrate his ASPP framework using a controversial test case to help show how it could be used in real-world situations.


What If All Animals Are Sentient?, Arthur S. Reber Jan 2017

What If All Animals Are Sentient?, Arthur S. Reber

Animal Sentience

Birch develops a useful framework for determining when the Animal Sentience Precautionary Principle (ASPP) should be invoked. He rightly notes that there is a lack of agreement among social scientists, ethicists, and legislators even about whether the precautionary principle is useful, let alone when and how it should be implemented. His proposal is to establish a kind of cognitive threshold, and only when an animal shows a sufficient level of sentience would the ASPP be appropriate. From the point of view of the Cellular Basis of Consciousness model (Reber, 2016), all animals are sentient. If correct, the problems Birch identifies …


The Precautionary Principle: A Cautionary Note, Robert C. Jones Jan 2017

The Precautionary Principle: A Cautionary Note, Robert C. Jones

Animal Sentience

The precautionary principle regarding animal sentience is often used in decision-making about human actions that may cause harm to nonhuman animals. Birch (2017) develops an account of the precautionary principle requiring two pragmatic rules for its implementation. I support Birch's proposal but offer a cautionary note about relying on precautionary principles if one's ultimate goal is to emancipate animals from human domination.


Scientific Uncertainty And The Animal Sentience Precautionary Principle, Michael L. Woodruff Jan 2017

Scientific Uncertainty And The Animal Sentience Precautionary Principle, Michael L. Woodruff

Animal Sentience

Jonathan Birch offers the animal sentience precautionary principle (ASPP) as a framework for assigning sentience to animals. In doing this, he defines a BAR which when crossed will lead to action (ACT) and implementation of the ASPP. His effort to create a clear empirical basis for implementation of the precautionary principle in the area of animal welfare regulation is important. I argue, however, that his BAR is so low that the evidence supporting ACT is in danger of being overwhelmed by the problems of induction and the underdetermination of theory by evidence. If this happens, policy makers might well disregard …


Will The Precautionary Principle Broaden Acceptance Of Animal Sentience?, Simon Leadbeater Jan 2017

Will The Precautionary Principle Broaden Acceptance Of Animal Sentience?, Simon Leadbeater

Animal Sentience

Birch uses existing practice to develop a formal Animal Sentience Precautionary Principle (ASPP), which he hopes will become more widely adopted and improve animal welfare outcomes. Birch considers the assumption that all animals are sentient to be extreme. Despite its merits, Birch’s ASPP remains human-centred.


Assessing Negative And Positive Evidence For Animal Pain, Robert W. Elwood Jan 2017

Assessing Negative And Positive Evidence For Animal Pain, Robert W. Elwood

Animal Sentience

Jonathan Birch suggests that we should take one well-conducted study that produces results consistent with the idea of pain as being sufficient to invoke the animal sentience precautionary principle. Here, I consider how to balance negative and positive results from such studies using examples from my own work. I also consider which criteria of pain might provide strong inference about pain and which may prove to be weaker.


Dogs Consciously Experience Emotions: The Question Is, Which?, Ralph Adolphs Jan 2017

Dogs Consciously Experience Emotions: The Question Is, Which?, Ralph Adolphs

Animal Sentience

I discuss three themes related to Kujala’s target article. First, the wealth of emerging data on cognitive studies in dogs will surely show that dogs have a very rich repertoire of cognitive processes, for most of which we find homologues in humans. Second, understanding the internal states that mediate social behaviors, such as emotions, requires us to consider both a dog’s behaviors with other dogs, and the emergence of new behavioral patterns in interaction with humans. Third, all of this will certainly narrow the range of justifications for denying that dogs have subjective experiences of emotions.


Do We Understand What It Means For Dogs To Experience Emotion?, Lasana T. Harris Jan 2017

Do We Understand What It Means For Dogs To Experience Emotion?, Lasana T. Harris

Animal Sentience

Psychologists who study humans struggle to agree on a definition of emotion, falling primarily into two camps. Though recent neuroscience advances are beginning to settle this ancient debate, it cannot solve the private-language problem at the heart of inferences about social cognition. This suggests that when we consider the emotional experiences of other species like canines, biological and physiological homologs do not provide enough evidence of emotional experiences similar to those of humans. Secondary complex emotional experiences are even more difficult to attribute to non-humans since such experiences rely, by definition, on social cognition. Given the contextual differences between human-human …


Direct Perception Of Animal Mind, Paul Morris Jan 2017

Direct Perception Of Animal Mind, Paul Morris

Animal Sentience

Kujala’s (2017) target article is ostensibly focused on how everyday folk (fail to) make sense of canine emotions. However, the theories outlined in the article apply to making sense of all aspects of the mentality of both human and non-human animals. The target article neglects the fundamental arguments surrounding the problem of other minds. I explore the relevant arguments and briefly review approaches suggesting that our everyday-life sense that both human and non-human animals are thinking, feeling, emotional beings has a secure epistemological basis.


Animal And Human Emotion: Concepts And Methodologies, Cátia Correia Caeiro Jan 2017

Animal And Human Emotion: Concepts And Methodologies, Cátia Correia Caeiro

Animal Sentience

The human-dog relationship is particularly interesting for the study of emotions. The underlying concepts need to be made explicit and methods need to be adapted to the characteristics of the species studied as well as the shortcomings of the human experimenter’s perception.


Canine Emotions And The Bond Between Humans And Dogs, Robert G. Franklin Jr. Jan 2017

Canine Emotions And The Bond Between Humans And Dogs, Robert G. Franklin Jr.

Animal Sentience

I explore how the findings reviewed by Kujala (2017) influence our understanding of the human-dog bond. The special social cognitive abilities of dogs may be unique among animal species, probably influenced by the circumstances surrounding canine domestication. The bond has influenced animal welfare policies, giving dogs a privileged place among animals. To determine what protections other species should have in a rational animal welfare policy, more research is needed on whether other species have similar social cognitive abilities.


The Development And Expression Of Canine Emotion, Allison L. Martin Jan 2017

The Development And Expression Of Canine Emotion, Allison L. Martin

Animal Sentience

In her review of canine emotions, Kujala (2017) discusses how humans often attribute emotions such as fear, love, and jealousy to their canine companions. This attribution is often dismissed as anthropomorphism, suggesting that only humans can possess these emotions. I argue that emotions are not something we possess but features of certain behavioral patterns. Both human and canine emotions arise through evolution and conditioning; examining their development and expression may lead to new insights about both canine and human behavior.


Communicating Canine And Human Emotions, Juliane Bräuer, Karine Silva, Stefan R. Schweinberger Jan 2017

Communicating Canine And Human Emotions, Juliane Bräuer, Karine Silva, Stefan R. Schweinberger

Animal Sentience

Kujala (2017) reviews a topic of major relevance for the understanding of the special dog-human relationship: canine emotions (as seen through human social cognition). This commentary draws attention to the communication of emotions within such a particular social context. It highlights challenges that need to be tackled to further advance research on emotional communication, and it calls for new avenues of research. Efforts to disentangle emotional processes from cognitive functioning might be necessary to better comprehend how they contribute, alone and/or in combination, to the communication of emotions. Also, new research methods need to be developed to account for the …


Empathy In Dogs: With A Little Help From A Friend – A Mixed Blessing, Sabrina Karl, Ludwig Huber Jan 2017

Empathy In Dogs: With A Little Help From A Friend – A Mixed Blessing, Sabrina Karl, Ludwig Huber

Animal Sentience

Kujala (2017) presents an extensive overview of existing research on canine emotions in comparison to those of other non-human animals and humans. This commentary provides some additional research results on the intensively debated field of empathy in dogs. We focus on recent advances in the understanding of a fundamental building block of empathy — emotional contagion — and on dogs’ remarkable sensitivity for human emotions, including the skills of assistance dogs.



Beyond The Provable?, Márta Gácsi Jan 2017

Beyond The Provable?, Márta Gácsi

Animal Sentience

Reading Kujala’s (2017) target article, I wondered whether we really need to approach the issue of animals’ emotions the traditional way, asking whether animals have emotions that are identical, similar or precursors to those of humans. As an ethologist, I prefer to examine psychological phenomena from an evolutionary perspective, focusing on Tinbergen’s (1963) four questions (Bateson & Laland 2013).


Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti Jan 2017

Positive Emotions And Quality Of Life In Dogs, Patrizia Piotti

Animal Sentience

Positive affect is fundamental to ensuring good animal welfare. Discrete and dimensional theories of emotion have recently been used to explore the relation between cognition and affect and to develop cognitive measures of positive affect. Human quality-of-life assessment focuses on positive affect, which is difficult to measure objectively in dogs. Expanding on Kujala’s (2017) discussion of positive emotions and cognitive measures of affect, I suggest how these are relevant to assessing canine quality of life.


Methodological Suggestions For Inferring Fear From Vigilance, Julie A. Teichroeb Jan 2017

Methodological Suggestions For Inferring Fear From Vigilance, Julie A. Teichroeb

Animal Sentience

I suggest some methods for data-collection and analysis that may help researchers infer fear from vigilance.


Nagel-Ing Worries About Fish Sentience, Hugh Lafollette Jan 2017

Nagel-Ing Worries About Fish Sentience, Hugh Lafollette

Animal Sentience

Woodruff (2017) argues that teleosts’ more sophisticated behaviors make sense only if they are sentient. Moreover, their neuroanatomy, although different from mammalian, is sufficiently complex to support sentience. I answer some potential objections to Woodruff’s argument, and try to trace its moral significance. In so doing, I briefly address Birch’s (2017) target article as well.


Of Cortex And Consciousness: “Phenomenal,” “Access,” Or Otherwise, Scott A. Husband Jan 2017

Of Cortex And Consciousness: “Phenomenal,” “Access,” Or Otherwise, Scott A. Husband

Animal Sentience

From the perspective of a comparative neuroanatomist studying the avian pallium, Woodruff’s (2017) claims about the behavioral and electrophysiological evidence for teleost sentience blur the lines between phenomenal and access consciousness (Block, 1995). I discuss the bias that complex cognition can only arise in the cortical layering typical of the mammalian pallium and conclude that Woodruff makes a good case that the tecto-pallial connections in teleosts are sufficiently complex to support something like sentience.


Learning, Memory, Cognition, And The Question Of Sentience In Fish, Robert Gerlai Jan 2017

Learning, Memory, Cognition, And The Question Of Sentience In Fish, Robert Gerlai

Animal Sentience

Evolutionarily conserved features have been demonstrated at many levels of biological organization across a variety of species. Evolutionary conservation may apply to complex behavioral phenomena too. It is thus not inconceivable that a form of sentience does exist even in the lowest order vertebrate taxon, the teleosts. How similar it is to human sentience in its level of complexity or in its multidimensional features is a difficult question, especially from an experimental standpoint, given that even the definition of human sentience is debated. Woodruff attempts a Turing-like test of fish sentience, and lists numerous neuroanatomic, neurophysiological and behavioral similarities between …


Mental Representations Are Not Necessary For Fish Consciousness, Luis H. Favela Jan 2017

Mental Representations Are Not Necessary For Fish Consciousness, Luis H. Favela

Animal Sentience

Woodruff (2017) argues that teleost fishes are capable of phenomenal consciousness. Central to his argument is the assumption that phenomenal consciousness is representational in nature. I think the commitment to a representational theory of consciousness undermines Woodruff’s case for teleost phenomenal consciousness. The reason is that organisms do not need to perceive the world indirectly via mental images/representations in order to have phenomenological experiences. My argument is based on considerations of ecological psychology and comparative ethology.


Animal Models, Agendas And Sentience, Thomas Creson Jan 2017

Animal Models, Agendas And Sentience, Thomas Creson

Animal Sentience

Woodruff’s target article on teleost consciousness is a well-organized logical argument for considering the fish as a sentient being. This becomes more important for animal ethical discussion as the fish becomes a more important and legitimate animal model for investigating animal states and traits associated with higher levels of behavior such as learning and memory.


The Emotional Brain Of Fish, Sonia Rey Planellas Jan 2017

The Emotional Brain Of Fish, Sonia Rey Planellas

Animal Sentience

Woodruff (2017) analyzes structural homologies and functional equivalences between the brains of mammals and fish to understand where sentience and social cognition might reside in teleosts. He compares neuroanatomical, neurophysiological and behavioural correlates. I discuss current advances in the study of fish cognitive abilities and emotions, and advocate an evolutionary approach to the underlying basis of sentience in teleosts.