Future Survival Research Articles

Pengaruh Partisipasi Penyusunan Anggaran terhadap Motivasi Kerja Manajerial

For managers, budgeting is a very important issue that affects the future survival of the organization. Given that key stakeholders are often involved in budget preparation, this preparation process raises questions regarding the relationship between participation in budget preparation and management motivation and performance. This article explains that when subordinates are involved in management, they are more likely to accept budget goals and therefore more motivated to participate in budget planning. Another aspect is that participation in budget preparation has a positive impact on budget adequacy. If the budget is decided unilaterally, the opposite will be true. This involvement motivates subordinates to be more proactive in achieving budget goals. From another perspective, subordinate participation in budgeting means that planning results are more realistic because subordinates have more accurate information about local conditions than superiors.

Between restriction and protection: the experience, problems, and improvement path of judicial recognition of personal bankruptcy exempt property in China

Personal bankruptcy exempt property refers to the property retained to ensure future survival and development to safeguard the basic life, career development, and other rights and interests of the debtor and dependents. It is a strong solution to the problems of the right to survival and development of the honest but unfortunate debtor, among other things. This thesis handles the Personal Bankruptcy Regulations of Shenzhen, the personal bankruptcy judicial documents, and judicial cases issued by the courts as samples and comprehensively analyzes the problems in the judicial practice of exempting property from personal bankruptcy in China. It innovatively proposes that the scope of recognition of exempted property adopts “inflation as the main approach” and sets up exceptions to protect the interests of creditors and debtors through the principle of “balance of interests”; Construct a recognition standard that “only specifies the types of property” and sets regional limits, protecting and limiting the rights of debtors under the principle of moderate protection; Implement the construction model of exemption property that combines “enumeration” and “generalization”, and under the guidance of the “flexibility principle”, establish a scope of exemption property that is in line with China’s national conditions. This study provides a new sample for international comparative research on the system of personal bankruptcy exempt property. It gives a new direction for exploring the judicial recognition of personal bankruptcy exempt property in China.

Conditional survival of younger patients with mantle cell lymphoma: Results from a randomized phase III trial of the European MCL Network.

During a fatal disease, patients often request updated information on their prognosis. After patients have already survived a certain time, conditional survival captures their future survival probability. We investigated conditional overall and failure-free survival in 473 younger mantle cell lymphoma (MCL) patients from a randomized phase III trial comparing immunochemotherapies R-CHOP and alternating R-CHOP/R-DHAP before autologous transplantation. Using conditional Kaplan-Meier method and Cox regression, we estimated subsequent survival of patients who had survived 1-8 years, considering MIPI, Ki-67, and treatment failure status. Starting at a lower level, R-CHOP patients only showed increasing subsequent survival as they survived longer (5-year conditional survival: 72% and 81% after surviving 1 and 7 years), while R-CHOP/R-DHAP patients had stable future survival over time (77% and 78%). The prognostic value of MIPI diminished after 3 years in R-CHOP patients but remained unchanged after R-CHOP/R-DHAP. Patients with treatment failure had markedly inferior survival compared with those in ongoing remission, regardless of the time survived. The longer patients remained in remission, the longer they would stay free of treatment failures. Our results enable personalized counselling for younger MCL patients by offering dynamic prognosis and underscore the importance of highly effective first-line treatment to improve survival.

Does Exposure to Summer Season at Different Stages of Intrauterine Development and Maternal Parity Affect Health and First-Lactation Milk Production of Female Offspring of Holstein Cows?

A suboptimal intrauterine environment during gestation may result in the programming of long-lasting structural and physiological alterations in the developing fetus, leading to health and production complications in adulthood. This observational study aimed to identify the impact of exposure to the summer season at different trimesters of gestation, dam parity, and their interaction on the postpartum disease incidence, first-lactation milk production, and herd lifespan of the offspring (F1 generation). Using a dataset collected from two commercial herds, the female offspring were categorized into three groups based on the trimester their dams experienced summer season during pregnancy: (1) first trimester (n = 2345), (2) second trimester (n = 3513), and (3) final trimester (n = 4988). The estimated 305-day milk production was lower in daughters (as a first-lactation cow) born to dams exposed to summer season during the first vs. third trimester. Summer season exposure during the first vs. third trimester resulted in the offspring that were less likely to remain in the herd (hazard ratio = 0.90; 95% CI = 0.84-0.95). Daughters of parous vs. nulliparous dams were more likely to experience dystocia and metritis but less likely to experience retained placenta. The risk of culling was higher in daughters of parous vs. nulliparous dams. Our preliminary findings suggest that the first trimester is a critical determinant of the female progeny's future productive performance and survivability. Dam parity was also identified as an influential factor affecting offspring health, as dystocia and metritis were more prevalent, and the culling risk was greater in daughters born to parous dams.

Variation in Lipid Peroxidation in the Ejaculates of Wild Banded Mongooses (Mungos mungo): A Test of the Oxidative Shielding Hypothesis.

Reproductive activity is costly in terms of future reproduction and survival. Oxidative stress has been identified as a likely mechanism underlying this cost of reproduction. However, empirical studies have yielded the paradoxical observation that breeders often sustain lower levels of oxidative damage than non-breeders. The oxidative shielding hypothesis attempts to explain such data, and posits that breeders pre-emptively reduce levels of oxidative damage in order to protect their germ cells, and any resultant offspring, from harm caused by exposure to oxidative damage. While there is some empirical evidence of oxidative shielding in females, there have been no explicit tests of this hypothesis in males, despite evidence of the oxidative costs to the male reproductive effort and the vulnerability of sperm cells to oxidative damage. In this study, we assess lipid oxidative damage (malondialdehyde, MDA) in the ejaculates of reproducing and non-reproducing wild banded mongooses. We found that, among breeding males, ejaculate MDA levels were lower during mate competition compared to 2 months later, when individuals were not mating, which is consistent with the oxidative shielding hypothesis, and similar to findings in females. However, ejaculate MDA levels did not differ significantly between breeding and non-breeding individuals at the time of mating, contrary to expectation. The finding that ejaculate MDA was not higher in non-breeders may reflect individual differences in quality and hence oxidative stress. In particular, breeders were significantly older than non-breeders, which may obscure differences in oxidative damage due to reproductive investment. Further research is needed to establish the causal relationship between reproductive investment and oxidative damage in ejaculates, and the consequences for offspring development in banded mongooses and other species.

From awareness to action: Understanding the relationship between circular economy and favourable evaluation towards sustainable development

AbstractThis study examines the effects of heightened awareness of circular economy (CE) principles on individuals' evaluations of sustainable development within Brazil's resource‐rich yet environmentally challenged context. Employing social learning theory (SLT) as our theoretical framework, we investigate how increased knowledge of CE influences individuals' cognitive perceptions, enhancing their understanding and favourable assessment of sustainable practices. Data were collected through a nationwide survey of the general public, incorporating five CE dimensions: waste management, rational use of resources, technical cycle, sustainable products/packaging and dematerialization/collaborative consumption. Our results reveal that a deeper awareness of CE significantly improves individuals' positive evaluations concerning the environment, future generations' survival, socio‐economic development and engagement between people and institutions in sustainable practices. These positive evaluations are indicative of a shift in perception that precedes and may catalyse sustainable behaviours, suggesting that cognitive engagement is a critical precursor to actionable change. The study confirms that SLT effectively elucidates the bidirectional and complex interaction between cognition and evaluation within environmental contexts, thereby enriching the understanding of how sustainable practices can be adopted and promoted. The implications of our research are profound, suggesting that educational and policy interventions aimed at increasing CE knowledge could substantially impact sustainable development outcomes.

Developmental plasticity of the cardiovascular system in oviparous vertebrates: effects of chronic hypoxia and interactive stressors in the context of climate change.

Animals at early life stages are generally more sensitive to environmental stress than adults. This is especially true of oviparous vertebrates that develop in variable environments with little or no parental care. These organisms regularly experience environmental fluctuations as part of their natural development, but climate change is increasing the frequency and intensity of these events. The developmental plasticity of oviparous vertebrates will therefore play a critical role in determining their future fitness and survival. In this Review, we discuss and compare the phenotypic consequences of chronic developmental hypoxia on the cardiovascular system of oviparous vertebrates. In particular, we focus on species-specific responses, critical windows, thresholds for responses and the interactive effects of other stressors, such as temperature and hypercapnia. Although important progress has been made, our Review identifies knowledge gaps that need to be addressed if we are to fully understand the impact of climate change on the developmental plasticity of the oviparous vertebrate cardiovascular system.

Chromosomal inversions harbour excess mutational load in the coral, Acropora kenti, on the Great Barrier Reef.

The future survival of coral reefs in the Anthropocene depends on the capacity of corals to adapt as oceans warm and extreme weather events become more frequent. Targeted interventions designed to assist evolutionary processes in corals require a comprehensive understanding of the distribution and structure of standing variation, however, efforts to map genomic variation in corals have so far focussed almost exclusively on SNPs, overlooking structural variants that have been shown to drive adaptive processes in other taxa. Here, we show that the reef-building coral, Acropora kenti, harbours at least five large, highly polymorphic structural variants, all of which exhibit signatures of strongly suppressed recombination in heterokaryotypes, a feature commonly associated with chromosomal inversions. Based on their high minor allele frequency, uniform distribution across habitats and elevated genetic load, we propose that these inversions in A. kenti are likely to be under balancing selection. An excess of SNPs with high impact on protein-coding genes within these loci elevates their importance both as potential targets for adaptive selection and as contributors to genetic decline if coral populations become fragmented or inbred in future.

Introduction to the Special Issue

Seeking critical and sound examination, analysis, and evaluation of complex ideas and theories of established past directions in the interdisciplinary fields of diaspora, postcolonial, and culture studies, this collection aims to chart intellectually meaningful pathways for future planetary survival and thriving, while throwing needed light on intricacies and nuances of established research and existing systems. Pondering the problems but also pursuing the possibilities of “diaspora connections” is a necessary and urgent endeavor today. While academics, activists, and cultural practitioners are creating numerous portals out of the human-conflict epidemic, and some see in the metaphoric and real “disease” the very artifacts and materials for hope of transformative power, the collection is driven by the realization, articulation, and intention of seeking inclusive paradigms and building enduring diaspora connections. In this spirit, I invited research papers that address, illuminate, analyze, and/or critique specific manifestations, dynamisms, or stagnancies of “diaspora connections,” as well as explore its multiple understandings and contexts. Whether focusing on recognized or emerging contours of diaspora communities shaped by and beyond concepts of race, ethnicity, colonization, and developmental logics, researched works on alignments and disjunctions, as well as new formations along postcolonial ecologies and narratives of culture, social formations and experiences were encouraged.

A dynamic state variable model suggests a stronger effect of age than individual energetic state on reproductive allocation in burying beetles

Evolutionary fitness is determined by how an organism allocates energy, or other limited resources, to reproduction during its lifetime. For iteroparous organisms, two alternative patterns of lifetime reproductive allocation are terminal investment and reproductive restraint. Terminal investment maximizes an individual’s current reproductive output by allocating all available resources to current reproduction at the cost of future reproduction. In contrast, the reproductive restraint strategy allocates the individual’s resources toward future survival and reproductive events. We used dynamic state variable modeling to investigate the conditions under which the burying beetle, Nicrophorus orbicollis, would balance between reproductive restraint and terminal investment over their lifetime. Our model provides a formal extension, specific to burying beetle biology, of the dynamic terminal investment threshold conceptual model. For young females, we show that delayed reproduction and reproductive restraint are the optimal tactic for all individuals except for those in the highest condition. However, as age increases, terminal investment becomes the optimal tactic over an increasingly broader range of individual conditions. Surprisingly, manipulation of a variety of factors, such as survival rate, resource availability, and metabolic costs, causes only minor changes in the general pattern observed. We suggest that in burying beetles, and other similar organisms, age plays a dominant role in determining the pattern of reproductive allocation over a lifetime. Individual energetic condition is important in changing the boundaries between alternative reproductive strategies, but it does not change the overall pattern of dominance of delayed reproduction or reproductive restraint at early ages and dominance of terminal investment with increasing age.

STRUGGLING METAL CRAFTS PRACTICE IN DARJEELING AND KALIMPONG DISTRICT OF WEST BENGAL

In the scenario of emerging Indian economy, Crafts-this unorganized sector become very important owing to its large number of employment generation potentiality and significant contribution towards export business. In the scenario of Darjeeling and Kalimpong district, this Sub Himalayan region is the home of many metal crafts artisans who are struggling because of gradual increasing pressure of modern machine-made products which decoy and changing metal crafts ecology are made this exquisite master pieces vulnerable. Metal crafts artisans were the main source to fulfill the demand of rural economy in these two districts but now the product is rarely present in the market. Changing consumer interest, low cost machine made and foreign products, lack of innovation towards new design trends, lack of awareness of market and support this heritage practice standing at its critical end. This study delves into metal crafts artisans called themselves Vishwakarma in Darjeeling and Kalimpong district, their present condition, crafts products, production procedure, scope of survival and farther development through the qualitative study using survey questioner and interview of artisans and other stakeholders. Findings from the data of 114 respondents from artist/producer, Retailers, Important Officials persons are exhibited, the identified issues and development areas toward future growth and survival of this crafts such as, upgradation of tools and technology, intervention initiatives and supports, welfare and marketing support, entrepreneurship and branding have been discussed. Data were collected from Darjeeling Palbazar Block, Jorbanglo Sukhia Block, Kurseong Block, Kalingpong 1.

Multimodal Machine Learning for Prognosis and Survival Prediction in Renal Cell Carcinoma Patients: A Two-Stage Framework with Model Fusion and Interpretability Analysis

Current medical limitations in predicting cancer survival status and time necessitate advancements beyond traditional methods and physical indicators. This research introduces a novel two-stage prognostic framework for renal cell carcinoma, addressing the inadequacies of existing diagnostic approaches. In the first stage, the framework accurately predicts the survival status (alive or deceased) with metrics Accuracy, Precision, Recall, and F1 score to evaluate the effects of the classification results, while the second stage focuses on forecasting the future survival time of deceased patients with Root Mean Square Error and Mean Absolute Error to evaluate the regression results. Leveraging popular machine learning models, such as Adaptive Boosting, Extra Trees, Gradient Boosting, Random Forest, and Extreme Gradient Boosting, along with fusion models like Voting, Stacking, and Blending, our approach significantly improves prognostic accuracy as shown in our experiments. The novelty of our research lies in the integration of a logistic regression meta-model for interpreting the blending model’s predictions, enhancing transparency. By the SHapley Additive exPlanations’ interpretability, we provide insights into variable contributions, aiding understanding at both global and local levels. Through modal segmentation and multimodal fusion applied to raw data from the Surveillance, Epidemiology, and End Results program, we enhance the precision of renal cell carcinoma prognosis. Our proposed model provides an interpretable analysis of model predictions, highlighting key variables influencing classification and regression decisions in the two-stage renal cell carcinoma prognosis framework. By addressing the black-box problem inherent in machine learning, our proposed model helps healthcare practitioners with a more reliable and transparent basis for applying machine learning in cancer prognostication.

An Assessment of the Climate Change Impacts on the Distribution of the Glacial Relict Woodpecker Three-Toed Woodpecker Picoides tridactylus.

The Three-Toed Woodpecker Picoides tridactylus is a rare and endangered woodpecker on the Balkan Peninsula. Despite being widely distributed in Northern Europe, its distribution on the Balkan Peninsula is limited to high-altitude forest habitats, where it represents a glacial relict. Assessing the climate change impacts on its distribution can be crucial for improving the conservation and future survival of this specialist species on the Balkan Peninsula. We used species distribution modelling (SDM) to identify its potential distribution in the past (last interglacial and last glacial maximum), present, and future (2050 and 2070). Our results indicate that this species had the greatest distribution during the last glacial maximum, after which its distribution contracted to areas where suitable environment persisted (high altitudes). The largest territory of the Balkan Peninsula has an unsuitable environment for the species to inhabit, while highly suitable habitats have the smallest share in the total area of suitable habitats. All future models show a decrease in the area of suitable habitats compared with the current period, indicating that global warming has a negative effect on the distribution of the species. We recommend that conservation activities must be of greater extent to ensure the species' survival in the Balkans.

What does not kill you makes you stronger? Effects of paternal age at conception on fathers and sons.

Advancing male age is often hypothesized to reduce both male fertility and offspring quality due to reproductive senescence. However, the effects of advancing male age on reproductive output and offspring quality are not always deleterious. For example, older fathers might buffer the effects of reproductive senescence by terminally investing in reproduction. Similarly, males that survive to reproduce at an old age might carry alleles that confer high viability (viability selection), which are then inherited by offspring, or might have high reproductive potential (selective disappearance). Differentiating these mechanisms requires an integrated experimental study of paternal survival and reproductive performance, as well as offspring quality, which is currently lacking. Using a cross-sectional study in Drosophila melanogaster, we test the effects of paternal age at conception (PAC) on paternal survival and reproductive success, and on the lifespans of sons. We discover that mating at an old age is linked with decreased future male survival, suggesting that mating-induced mortality is possibly due to old fathers being frail. We find no evidence for terminal investment and show that reproductive senescence in fathers does not onset until their late-adult life. Additionally, we find that as a father's lifespan increases, his probability of siring offspring increases for older PAC treatments only. Lastly, we show that sons born to older fathers live longer than those born to younger fathers due to viability selection. Collectively, our results suggest that advancing paternal age is not necessarily associated with deleterious effects for offspring and may even lead to older fathers producing longer-lived offspring.

Corporate sustainability and biodiversity reporting: A proactive business strategy to mitigate litigation and reputational risks

AbstractBiodiversity is important to human's future survival and global sustainability. One way to achieve corporate sustainability is for firms to report its impacts on biodiversity. However, fear of litigation arising from reporting potentially deters corporations to disclose such information. Motivated by the importance of biodiversity and mixed evidence of shareholder litigation rights as a corporate governance tool, we explore whether the universal demand laws (UDLs) have any effect on corporate biodiversity reporting in the United States. Supporting our short‐termism, risk aversion and agency hypotheses, we find that an exogenous decline in the threat of derivative litigation, reducing a chance for shareholders to file a lawsuit against top management and intensifying agency costs, economically and significantly decreases a corporate's biodiversity reporting by 87%. When the disciplining effect of shareholder litigation drops, the self‐interest manager may want to live a quiet life and disclose less information of biodiversity impact. A proactive business strategy to mitigate litigation and reputational risks is to voluntarily disclose more biodiversity‐related information. Regulators around the world should also promote rigorous reporting requirements to reverse biodiversity loss and save our humanity.

Predicting Lung Cancer Survival to the Future: Population-Based Cancer Survival Modeling Study.

Lung cancer remains the leading cause of cancer-related mortality globally, with late diagnoses often resulting in poor prognosis. In response, the Lung Ambition Alliance aims to double the 5-year survival rate by 2025. Using the Taiwan Cancer Registry, this study uses the survivorship-period-cohort model to assess the feasibility of achieving this goal by predicting future survival rates of patients with lung cancer in Taiwan. This retrospective study analyzed data from 205,104 patients with lung cancer registered between 1997 and 2018. Survival rates were calculated using the survivorship-period-cohort model, focusing on 1-year interval survival rates and extrapolating to predict 5-year outcomes for diagnoses up to 2020, as viewed from 2025. Model validation involved comparing predicted rates with actual data using symmetric mean absolute percentage error. The study identified notable improvements in survival rates beginning in 2004, with the predicted 5-year survival rate for 2020 reaching 38.7%, marking a considerable increase from the most recent available data of 23.8% for patients diagnosed in 2013. Subgroup analysis revealed varied survival improvements across different demographics and histological types. Predictions based on current trends indicate that achieving the Lung Ambition Alliance's goal could be within reach. The analysis demonstrates notable improvements in lung cancer survival rates in Taiwan, driven by the adoption of low-dose computed tomography screening, alongside advances in diagnostic technologies and treatment strategies. While the ambitious target set by the Lung Ambition Alliance appears achievable, ongoing advancements in medical technology and health policies will be crucial. The study underscores the potential impact of continued enhancements in lung cancer management and the importance of strategic health interventions to further improve survival outcomes.

Adapt, Survive and Evolve: Changing Environment in Two Post-Apocalyptic Novels The Stand and Earth Abides

The following research which is grounded on natural selection uses text analysis to find out the significance of survival in the post-apocalyptic narration mainly with reference to Stephen King's The Stand. The intertextuality of this work with Earth Abides is also pointed out. The saga of survival in the post-apocalyptic period, Darwin’s concept of survival of the fittest and the human ability for adaptation are elucidated in the article. The survival stories teach us how to reconstruct the fallen society, providing an insight into how the affected people handle the situation (Leon C Megginson). It is not the strongest or the most intelligent who will survive but those who can best manage change. The pandemic narratives can serve as an important area in the classic to contemporary literature in throwing light on future survival issues, teaching how to overcome the precarious situations. It can be reiterated that the post-apocalyptic narratives speak volumes about the above-mentioned significant areas. Ipso facto, the popularity of Pandemic literature should make humanity sure-footed in prevailing over the pandemic threats, and assuring new life and hope.

Modeling Population Growth under Climate Stressors Using Age-Structured Matrix Models.

Climate resilience, a focus of many recent studies, has been examined from ecological, physiological, and evolutionary perspectives. However, sampling biases toward adults, males, and certain species have made establishing the link between environmental change and population-level change problematic. Here, we used data from four laboratory studies, in which we administered pre- and postnatal stressors, such as suboptimal incubation temperature, heat stress, and food restriction, to zebra finches. We then quantified hatching success, posthatch survival, and reproductive success, to parameterize age-structured population dynamics models with the goal of estimating the effect of the stressors on relative population growth rates. Using the same model structure, we tested the hypothesis that early life stages influence population growth rate more than later life stages. Our models suggested that stressful events during embryonic development, such as suboptimal incubation temperatures and reduced gas exchange for the embryos, have a greater total impact on population growth than posthatch stressors, such as heat stress and food restriction. However, among life history traits, differences in hatching success and sex ratio of offspring in response to stressors changed population growth rates more than differences in any other demographic rate estimates. These results suggest that when predicting population resilience against climate change, it is critical to account for effects of climate change on all life stages, including early stages of life, and to incorporate individuals' physiology and stress tolerance that likely influence future stress responses, reproduction, and survival.

Forecasting Inequalities in Survival to Retirement Age by Socioeconomic Status in Denmark and Sweden

In Denmark and Sweden, statutory retirement age is indexed to life expectancy to account for mortality improvements in their populations. However, mortality improvements have not been uniform across different sub-populations. Notably, in both countries, individuals of lower socioeconomic status (SES) have experienced slower mortality improvements. As a result, a uniform rise in the statutory retirement age could disproportionally affect these low-SES groups and may unintentionally lead to a reverse redistribution effect, shifting benefits from short-lived low-SES individuals to long-lived high-SES individuals. The aim of this study is twofold: to quantify and contextualise mortality inequalities by SES in Denmark and Sweden, and to assess how indexing retirement age will affect future survival to retirement age by SES in these countries. We used Danish and Swedish registry data (1988–2019), to aggregate individuals aged 50 + based on their demographic characteristics and SES. We computed period life tables by year, sex, and SES to estimate the difference in survival across different SES groups. We then forecast mortality across SES groups to assess how indexing retirement age will affect survival inequalities to retirement age, using two forecasting models—the Mode model and the Li-Lee model. Mortality inequalities are comparable in Denmark and Sweden, even though the latter generally has higher survival. We also find that indexing retirement age to life expectancy will have two main consequences: it will reduce the probability of reaching retirement for all SES groups, particularly those of low SES, and time spent in retirement will be reduced, particularly for those of high SES.

Scope and adaptive value of modulating aggression over breeding stages in a competitive female bird

Abstract In seasonally breeding animals, the costs and benefits of territorial aggression should vary over time; however, little work thus far has directly examined the scope and adaptive value of individual-level plasticity in aggression across breeding stages. We explore these issues using the tree swallow (Tachycineta bicolor), a single-brooded bird species in which females compete for limited nesting sites. We measured aggressiveness in nearly 100 females within 3 different stages: (1) shortly after territory-establishment, (2) during incubation, and (3) while caring for young chicks. Based on the timing, direction, and magnitude of behavioral changes between stages, we used k-means clustering to categorize each female’s behavior into a “plasticity type.” We then tested whether plasticity type and stage-specific aggression varied with key performance metrics. About 40% of females decreased aggressiveness across consecutive breeding stages to some degree, consistent with population-level patterns. 33% of females exhibited comparatively little plasticity, with moderate to low levels of aggression in all stages. Finally, 27% of females displayed steep decreases and then increases in aggression between stages; females exhibiting this pattern had significantly lower body mass while parenting, they tended to hatch fewer eggs, and they had the lowest observed overwinter survival rates. Other patterns of among-stage changes in aggressiveness were not associated with performance. These results reveal substantial among-individual variation in behavioral plasticity, which may reflect diverse solutions to trade-offs between current reproduction and future survival.