Trends in ecology & evolution最新文献

Coastal ecosystems face salinization and rising temperatures. In coastal ectotherms, salinity and temperature affect metabolism, tolerance, infections, growth, behavior, and survival. Overall, the combined effects of salinity and temperature on species distribution, community structure, invasive species, and ecosystem functioning need to be fully assessed to understand impacts from these stressors.

Water provisioning is common in arid and semi-arid African ecosystems, but its effects on carnivore communities are not understood. Recently, Morin et al. documented the unexpectedly contrasting space-use patterns of dominant and subordinate carnivores around water sources, with dominant carnivores facilitating subordinate carnivores.

Biodiversity and nature assessments such as the US National Nature Assessment assess the state of biodiversity and the contributions of nature to humans.. Using three species relevant to public health, the economy, and ecosystem services, we illustrate here how socioeconomics relate to biodiversity data availability. Inequities in biodiversity records could risk inaccurate ecological assessments and hamper equitable policies.

Hotspots - sites with high temperatures - are expected to favor heat-tolerant organisms. Lachs et al. tested this assumption with Palau corals. Surprisingly, heat-tolerant individuals originated in both hotspots and cool refugia, with energy reserves giving a tolerance boost. Protecting ecological networks across environmental gradients can maintain high thermal trait diversity.

Group-living animals sleep together, yet most research treats sleep as an individual process. Here, we argue that social interactions during the sleep period contribute in important, but largely overlooked, ways to animal groups' social dynamics, while patterns of social interaction and the structure of social connections within animal groups play important, but poorly understood, roles in shaping sleep behavior. Leveraging field-appropriate methods, such as direct and video-based observation, and increasingly common on-animal motion sensors (e.g., accelerometers), behavioral indicators can be tracked to measure sleep in multiple individuals in a group of animals simultaneously. Sleep proximity networks and sleep timing networks can then be used to investigate the collective dynamics of sleep in wild group-living animals.

The rapid diversification of terminology associated with invasion ecology is a known barrier to effective communication and management. These challenges are magnified by the addition of terms and concepts related to climate-induced range-shifting taxa and/or changes to impacts. Further, institutional policies and terminologies for invasive species introduce new ambiguities when considering climate change. To alleviate communication and application challenges, we introduce a conceptual framework that organizes climate-related invasion terms, revealing ambiguities and gaps. Additionally, we illustrate how these ambiguities can affect management with four case studies and consider situations where resolution can improve policy and management outcomes. The framework can help users avoid inconsistent use of terminology, and prioritize when to address management and policy consequences related to associated terminological ambiguity.

Biodiversity is declining at alarming rates, with some negative impacts caused by activities that are necessary for meeting basic human needs and others which should be avoided to prevent ecological collapse. Avoidance of biodiversity impacts is costly; these costs must be distributed fairly. Principles of fair allocation - which are grounded in longstanding theories of justice and are mathematically operationalizable - are rarely used in biodiversity decision-making but can help to deliver procedural and distributive justice alongside biodiversity outcomes. We show how incorporating rules of fair allocation into biodiversity decision-making could advance policy formulation towards a safe and just future. Such rules provide a means to operationalize equity and create space for cooperatively and constructively negotiating avoidance liabilities within biodiversity impact mitigation.

Understanding ecosystem responses to global change have long challenged scientists due to notoriously complex properties arising from the interplay between biological and environmental factors. We propose the concept of ecosystem synchrony - that is, similarity in the temporal fluctuations of an ecosystem function between multiple ecosystems - to overcome this challenge. Ecosystem synchrony can manifest due to spatially correlated environmental fluctuations (Moran effect), exchange of energy, nutrients, and organic matter and similarity in biotic characteristics across ecosystems. By taking advantage of long-term surveys, remote sensing and the increased use of high-frequency sensors to assess ecosystem functions, ecosystem synchrony can foster our understanding of the coordinated ecosystem responses at unexplored spatiotemporal scales, identify emerging portfolio effects among ecosystems, and deliver signals of ecosystem perturbations.

Stoichiometric homeostasis is the ability of life to maintain inner chemical constancy despite changes in the environment and resources. Organisms can be stoichiometrically homeostatic to different degrees. This variation can be substantial even within species, but is ignored in most studies of ecological stoichiometry. Recent studies suggest that resource limitations are an important selective pressure behind homeostasis, but are contradictory in direction, likely owing to differences in nutrient storage strategies. Understanding the selective pressures underlying stoichiometric homeostasis, and its potential for rapid evolution, are key to predicting eco-evolutionary dynamics. This calls for the development of an evolutionary theory of stoichiometric homeostasis that incorporates rapid evolution, as well as for empirical studies to test the underlying mechanisms.

Bullying during the peer review process is an overlooked form of academic bullying. Measures to limit its negative impact are insufficient, necessitating new initiatives to protect individuals and the integrity of science. If unaddressed, peer review bullying will undermine diversity, equity, and inclusion, particularly harming early-career researchers and minorities.