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Existing studies demonstrate that threat perceptions matter for immigration attitudes. However, while these perceptions are potentially sensitive to information about immigrants' impacts, questions remain about whether inserting such information into public debates changes attitudes and policy preferences—especially on polarizing issues like immigration. Moreover, few studies have considered messages featuring the type of nonphotorealistic visual elements that increasingly appear in media. Using a survey experiment fielded in the United Kingdom, we examined whether evidence about European Union immigrants' modestly positive economic impacts on the United Kingdom—presented either as text, with visualizations, or as an animated film—changed immigration attitudes and policy preferences. Although visual elements did not have an effect over and above text, all the informational treatments moved attitudes and preferences in positive directions, even among Leave voters. Our study brings together research on immigration public opinion and visual media and has implications for policymaking and journalism practice. [ABSTRACT FROM AUTHOR]

How do governments visually communicate policies, and what does this reveal about actors' political objectives? Governments strategically narrate their priorities, yet few studies examine this process through visual modes. We contribute to theoretical and empirical understanding in policy studies by focusing on the UK government's COVID-19 response through its daily press briefings during the first wave of 2020. Combining quantitative changepoint and content analysis with qualitative discourse analysis, we examine all 79 sets of slides when briefings occurred. We identify a reactive phase focused on communicating knowledge about the pandemic in a boundedly rational manner, and a proactive phase that created new policy-based narratives of the pandemic. Besides contributing to emerging pandemic-related policy scholarship, we argue that conceiving these visualizations as visual narrative assemblages is relevant more broadly because it shifts attention to the interaction and interdependence of multiple visualizations as they enable policymakers to perform their authority to govern. [ABSTRACT FROM AUTHOR]

The COVID-19 pandemic and interventions addressing it raise important questions about human mobility that have geopolitical implications. This forum uses mobility and immobility during the pandemic as lenses onto the ways that routinised state power reacts to acute uncertainties, as well as how these reactions impact politics and societies. Specifically, we propose the concept of "shock mobility" as migratory routines radically reconfigured: emergency flights from epicentres, mass repatriations, lockdowns, quarantines. Patterns of shock mobility and immobility are not new categories of movement, but rather are significant alterations to the timing, duration, intensity, and relations among existing movements. Many of these alterations have been induced by governments' reactions to the pandemic in both migrant-sending and receiving contexts, which can be especially consequential for migrants in and from the Global South. Our interventions explore these processes by highlighting experiences of Afghans and Kurds along Iran's borders, Western Africans in Europe, Filipino workers, irregular Bangladeshis in Qatar, Central Americans travelling northwards via Mexico, and rural-urban migrants in India. In total, we argue that tracing shocks' dynamics in a comparative manner provides an analytical means for assessing the long-term implications of the pandemic, building theories about how and why any particular post-crisis world emerges as it does, and paving the way for future empirical work. [ABSTRACT FROM AUTHOR]

Prey seldom rely on a single type of antipredator defence, often using multiple defences to avoid predation. In many cases, selection in different contexts may favour the evolution of multiple defences in a prey. However, a prey may use multiple defences to protect itself during a single predator encounter. Such "defence portfolios" that defend prey against a single instance of predation are distributed across and within successive stages of the predation sequence (encounter, detection, identification, approach (attack), subjugation and consumption). We contend that at present, our understanding of defence portfolio evolution is incomplete, and seen from the fragmentary perspective of specific sensory systems (e.g., visual) or specific types of defences (especially aposematism). In this review, we aim to build a comprehensive framework for conceptualizing the evolution of multiple prey defences, beginning with hypotheses for the evolution of multiple defences in general, and defence portfolios in particular. We then examine idealized models of resource trade‐offs and functional interactions between traits, along with evidence supporting them. We find that defence portfolios are constrained by resource allocation to other aspects of life history, as well as functional incompatibilities between different defences. We also find that selection is likely to favour combinations of defences that have synergistic effects on predator behaviour and prey survival. Next, we examine specific aspects of prey ecology, genetics and development, and predator cognition that modify the predictions of current hypotheses or introduce competing hypotheses. We outline schema for gathering data on the distribution of prey defences across species and geography, determining how multiple defences are produced, and testing the proximate mechanisms by which multiple prey defences impact predator behaviour. Adopting these approaches will strengthen our understanding of multiple defensive strategies. [ABSTRACT FROM AUTHOR]

What visual features characterize online migration data visualizations, and what do they suggest for the politics of representing migration and informing public attitudes? Audiences increasingly encounter quantitative information through visualization, especially in digital environments. Yet visualizations have political dimensions that manifest themselves through "conventions," or shared symbols and practices conveying meaning. Using content analysis, I identify patterns of representation in a sample of 277 migration data visualizations scraped from Google Images. I find evidence of several conventions including appeals to objectivity and traceability as well as perspectives and units of analysis centered on states—particularly higher income migrant destinations. Then, by locating my analysis within the growing field of digital migration studies, I argue these conventions potentially shape public attitudes and understandings about migrants, and contribute to broader migration politics involving categorization and quantification that have relevance both on- and off-line. [ABSTRACT FROM AUTHOR]

Deimatic behaviours, also referred to as startle behaviours, are used against predators and rivals. Although many are spectacular, their proximate and ultimate causes remain unclear. In this review we aim to synthesise what is known about deimatic behaviour and identify knowledge gaps. We propose a working hypothesis for deimatic behaviour, and discuss the available evidence for the evolution, ontogeny, causation, and survival value of deimatic behaviour using Tinbergen's Four Questions as a framework. Our overarching aim is to direct future research by suggesting ways to address the most pressing questions in this field. [ABSTRACT FROM AUTHOR]

Researchers studying international organizations have access to growing and varied archives due to digitization efforts. While developments in computational methods confer efficiency gains for examining these materials at scale, they raise concerns about their validity when applied to interpretive tasks in historical settings. In response, we present a general and flexible workflow that uses simple computational techniques from linguistics to enhance archival researchers' interpretive skills and sensitivity to historical contexts. These techniques also identify patterns that can serve as evidence of causal mechanisms when embedded within strong research designs and theoretical expectations. Then, we demonstrate our mixed-method approach by applying it to a dataset of International Labour Organization's (ILO) annual reports spanning ninety-three years. Examining the ILO's engagement with refugees as described in these documents, we identify key moments during which refugees have been particularly salient for this organization, and the emergence of new issues on its high-level policy agenda. [ABSTRACT FROM AUTHOR]

Universities increasingly facilitate as well as study social change alongside decision‐makers and users. This is partly in response to demands for civic engagement and demonstrable public impact. While existing scholarship has critically examined these collaborations' impacts, less work addresses either how they develop or what benefits they confer to participants—especially those operating at local scales. By examining two university‐initiated networks comprising 28 cities in 12 European countries working on immigrant integration issues, we show how two‐way knowledge exchange among researchers and municipal policymakers can foster peer learning and co‐productive dynamics. We argue that these exchanges socialize cities into more cohesive groups with shared goals and agendas, particularly in low‐salience policy areas, as integration can be in some national contexts. Moreover, universities and university‐affiliated researchers play unique roles in facilitating this process. Our results have theoretical implications for multi‐level and networked governance and offer practical guidance for designing knowledge exchange initiatives. [ABSTRACT FROM AUTHOR]

• We examine the multidimensional character of migration policy preferences, and whether humanitarian values matter for these preferences. • We conducted a pre-registered conjoint experiment in Colombia in 2021 (N = 2,508), a major host of forced migrants globally. • Colombians favor fewer restrictions on Venezuelans' right to work, healthcare access, family reunification, or location within Colombia. • There is support for placing some restrictions on the number of Venezuelans entering the country and the length of their residence in Colombia. • Respondents holding stronger humanitarian preferences favor fewer restrictions in domains addressing core needs of health, family, and work. What migration policies do people in receiving countries prefer, and to what extent do humanitarian concerns matter for these preferences? Despite sustained scholarly attention to migration attitudes in high-income countries, much less work examines public policy preferences—particularly in low- and middle-income countries that receive most forced migrants globally. While legislators can propose and implement migration policies involving multiple domains that differ in restrictiveness, their choices partly rely on public support that may vary depending on the policy area at stake. This makes understanding preferences for realistic migration policies in a multidimensional manner theoretically and empirically important. In response, we conducted a pre-registered conjoint experiment (N = 2,508) fielded in Colombia, the country that has received the largest share of Venezuelan emigrants who themselves currently comprise one of the world's largest migratory flows. Colombians prefer more open policy options that place either some or no restrictions on Venezuelan migrants' labor market access, ability to bring family members, access to public healthcare, or freedom to choose where they live within Colombia. However, there is support for restrictions on the overall number of Venezuelans allowed to settle in the country, as well as the length of time that Venezuelans are allowed to stay in Colombia. Moreover, respondents holding higher levels of humanitarianism prefer less restrictive policies towards Venezuelans relative to those holding stronger economic and material values—particularly in domains addressing core needs of health, family reunification, and employment. Our study contributes novel and timely evidence of multidimensional migration policy preferences from a highly-impacted case, while also showing how altruistic values relating to humanitarianism selectively matter for these preferences. [ABSTRACT FROM AUTHOR]

For example, individuals use their body coloration to avoid detection and recognition, startle predators, signal unpalatability, and divert predator attacks ([4]). [3] review provides a novel and refreshing perspective on the conflicting selection pressures that shape animal coloration, and the multifunctional strategies that have evolved as a result. Thus, the categorization of defensive coloration strategies provides a unique opportunity to re-examine the link between coloration and behavioral defense in the context of function(s) and mechanism(s). [Extracted from the article]

• Drag reduction through solar warming is much less likely for swimmers than fliers. • Water more readily absorbs solar radiation. • Warm surfaces cool more quickly in water. • Swimming near the water's surface is energetically costly. [ABSTRACT FROM AUTHOR]

Comparative biologists are often interested in inferring covariation between multiple biological traits sampled across numerous related taxa. To properly study these relationships, we must control for the shared evolutionary history of the taxa to avoid spurious inference. An additional challenge arises as obtaining a full suite of measurements becomes increasingly difficult with increasing taxa. This generally necessitates data imputation or integration, and existing control techniques typically scale poorly as the number of taxa increases. We propose an inference technique that integrates out missing measurements analytically and scales linearly with the number of taxa by using a post-order traversal algorithm under a multivariate Brownian diffusion (MBD) model to characterize trait evolution. We further exploit this technique to extend the MBD model to account for sampling error or nonheritable residual variance. We test these methods to examine mammalian life history traits, prokaryotic genomic and phenotypic traits, and HIV infection traits. We find computational efficiency increases that top two orders-of-magnitude over current best practices. While we focus on the utility of this algorithm in phylogenetic comparative methods, our approach generalizes to solve long-standing challenges in computing the likelihood for matrix-normal and multivariate normal distributions with missing data at scale. for this article are available online. [ABSTRACT FROM AUTHOR]

Here, we investigate the camouflage consequences of animal orientation behaviour. Shadows can be a conspicuous cue to the presence of prey. For bilaterally symmetrical animals, light field modelling indicates that camouflage will be improved when an animal orients its longitudinal axis directly towards or away from the sun, because the appearance of shadows is minimized. We test this prediction with a field predation experiment, in which wild birds hunt for artificial camouflaged prey oriented with the longitudinal axis either parallel or perpendicular to the sun. We find that prey oriented parallel to the sun are 3.93 times more likely to survive than prey oriented perpendicular to the sun. This result demonstrates the strong orientation dependence of camouflage. Given the dramatic difference in survival of prey with different orientations, we suggest that camouflage should be investigated as an important determinant of the positional behaviour of animals. [ABSTRACT FROM AUTHOR]

Sticky traps are one of the most important tools for monitoring and mass trapping of insect pests. Their effectiveness depends on attracting and capturing target pests efficiently. Trap colour strongly affects capture rates, but currently a principled approach to identifying optimal trap colour for a given pest and growing context is lacking. Here we propose that modelling pest colour vision enables identification of trap colours that optimise pest capture rates. We test this novel approach to trap design in field trials on Western flower thrips (WFT) Frankiniella occidentalis, an economically damaging pest of agriculture and horticulture worldwide. Prior studies have reported that WFT prefer blue and yellow sticky traps, aligning with recent evidence that WFT have trichromatic colour vision with peak sensitivities in the UV, blue and green portion of the visual spectrum and a blue-green colour opponent mechanism. Therefore, we hypothesised that a shade of blue that maximally stimulates the blue photoreceptor whilst minimally stimulating the green photoreceptor would improve sticky trap capture rates, while a shade of blue that decreased the opponent response would reduce capture rates. In three field experiments, we found strong support for this hypothesis: the optimised blue colour captured 1.3–2.6 times more WFT than current commercial trap colours. Our results also demonstrated that visual modelling can identify optimally contrasting colours for two-colour traps that further improve capture rates. This study provides a novel and principled approach to the design of visual traps that could be extended to other pest management contexts. [ABSTRACT FROM AUTHOR]

Understanding the role of traits in dispersal is necessary to improve our knowledge of historical biogeography, community assembly processes and predictions of species' future movements. Here we aimed to determine the relationship between three traits (coastal distribution, body size, position on the fast/slow life history continuum) and past dispersal probability on an evolutionary timescale in chameleons (Chamaeleonidae). Using species' distribution data we identified the nine most important biogeographic regions for all included chameleons (181/217 species). We compiled life history trait data and used phylogenetic factor analysis to infer independent body size and fast/slow life history trait axes. Finally, we tested whether traits and trait combinations related to biogeographic dispersal success in the past, using trait‐dependent biogeographic models. All three traits were associated with past biogeographical movements. Lineages having coastal distributions and those with large bodies had higher dispersal probabilities. Interestingly, chameleons with either a very fast or very slow life history were more successful dispersers than species with an intermediate strategy. Together, the three traits – coastal, large‐bodied and extreme life history – form a dispersal syndrome. Traits have played an important role in the biogeographic history of chameleons. While only fast traits have been linked to present‐day invasion success in reptiles, both extremes of the life history spectrum were likely advantageous for dispersal and establishment during past biogeographic movements. Fast‐living species may be less susceptible to stochastic extinction in the first phases of a colonization (due to rapid population growth), and slow‐living species may be less vulnerable to environmental stochasticity (due to low demographic variability). Our results call for broader analyses testing the general influence of life history strategy in biogeographic dispersal success, which would help explain species distribution patterns on Earth. [ABSTRACT FROM AUTHOR]