Abstract:
:The natural, prehuman abundance of most large predators is unknown because of the lack of historical data and a limited understanding of the natural factors that control their populations. Determining the supportable predator biomass at a given location (that is, the predator carrying capacity) would help managers to optimize protection and would provide site-specific recovery goals. We assess the relationship between predatory reef fish biomass and several anthropogenic and environmental variables at 39 reefs across the Caribbean to (i) estimate their roles determining local predator biomass and (ii) determine site-specific recovery potential if fishing was eliminated. We show that predatory reef fish biomass tends to be higher in marine reserves but is strongly negatively related to human activities, especially coastal development. However, human activities and natural factors, including reef complexity and prey abundance, explain more than 50% of the spatial variation in predator biomass. Comparing site-specific predator carrying capacities to field observations, we infer that current predatory reef fish biomass is 60 to 90% lower than the potential supportable biomass in most sites, even within most marine reserves. We also found that the scope for recovery varies among reefs by at least an order of magnitude. This suggests that we could underestimate unfished biomass at sites that provide ideal conditions for predators or greatly overestimate that of seemingly predator-depleted sites that may have never supported large predator populations because of suboptimal environmental conditions.
journal_name
Sci Advjournal_title
Science advancesauthors
Valdivia A,Cox CE,Bruno JFdoi
10.1126/sciadv.1601303subject
Has Abstractpub_date
2017-03-01 00:00:00pages
e1601303issue
3issn
2375-2548pii
1601303journal_volume
3pub_type
杂志文章相关文献
Science Advances文献大全abstract::In graphene superlattices, bulk topological currents can lead to long-range charge-neutral flow and nonlocal resistance near Dirac points. A ballistic version of these phenomena has never been explored. We report transport properties of ballistic graphene superlattices. This allows us to study and exploit giant nonloc...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaq0194
更新日期:2018-05-18 00:00:00
abstract::The response to programmed cell death protein-1 (PD-1)/programmed death ligand-1 (PD-L1) blockade in cancer immunotherapy is limited because of multiple immune evasion mechanisms. Here, a previously unknown strategy is proposed to synergize the nuclear factor κB (NF-κB) inhibition and PD-1 blockade for antitumor immun...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aay7785
更新日期:2020-02-05 00:00:00
abstract::Six percent of Americans, including 3 million high schoolers, use e-cigarettes, which contain potentially toxic substances, volatile organic compounds, and metals. We present the first human study on the effects of e-cigarette exposure in the oral cavity. By interrogating both immunoinflammatory responses and microbia...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaz0108
更新日期:2020-05-27 00:00:00
abstract::Hybrid organic-inorganic halide perovskites have shown remarkable optoelectronic properties, exhibiting an impressive tolerance to defects believed to originate from correlated motion of charge carriers and the polar lattice forming large polarons. Few experimental techniques are capable of directly probing these corr...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw5558
更新日期:2019-05-31 00:00:00
abstract::Fluid catalytic cracking (FCC) particles account for 40 to 45% of worldwide gasoline production. The hierarchical complex particle pore structure allows access of long-chain feedstock molecules into active catalyst domains where they are cracked into smaller, more valuable hydrocarbon products (for example, gasoline)....
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1400199
更新日期:2015-04-03 00:00:00
abstract::RNA interference (RNAi) technology can specifically silence the expression of a target gene and has emerged as a promising therapeutic method to treat cancer. In the present study, we showed that natural halloysite nanotube (HNT)-assisted delivery of an active small interfering RNA (siRNA) targeting receptor-interacti...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw6499
更新日期:2019-09-25 00:00:00
abstract::Laser technology has developed and accelerated photo-induced nonequilibrium physics, from both the scientific and engineering viewpoints. Floquet engineering, i.e., controlling material properties and functionalities by time-periodic drives, is at the forefront of quantum physics of light-matter interaction. However, ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abb4019
更新日期:2020-07-03 00:00:00
abstract::User-interactive electronic skin is capable of spatially mapping touch via electric readout and providing visual output as a human-readable response. However, the high power consumption, complex structure, and high cost of user-interactive electronic skin are notable obstacles for practical application. Here, we repor...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba4294
更新日期:2020-07-08 00:00:00
abstract::Wächtershäuser's proposal of the autotrophic origin of life theory and subsequent laboratory demonstrations of relevant organic reactions have opened a new gate for the exploration of the origin of life. However, this scenario remains controversial because, at present, it requires a high pressure of CO as a source of ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aao7265
更新日期:2018-04-04 00:00:00
abstract::We investigate the emergence of global alignment in colonies of dividing rod-shaped cells under confinement. Using molecular dynamics simulations and continuous modeling, we demonstrate that geometrical anisotropies in the confining environment give rise to an imbalance in the normal stresses, which, in turn, drives a...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abc8685
更新日期:2021-01-22 00:00:00
abstract::Nucleosynthetic isotope variability among solar system objects provides insights into the accretion history of terrestrial planets. We report on the nucleosynthetic Fe isotope composition (μ54Fe) of various meteorites and show that the only material matching the terrestrial composition is CI (Ivuna-type) carbonaceous ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aay7604
更新日期:2020-02-12 00:00:00
abstract::Capabilities for assembly of three-dimensional (3D) micro/nanostructures in advanced materials have important implications across a broad range of application areas, reaching nearly every class of microsystem technology. Approaches that rely on the controlled, compressive buckling of 2D precursors are promising becaus...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601014
更新日期:2016-09-23 00:00:00
abstract::Microbial communities are self-controlled by repertoires of lethal agents, the antibiotics. In their turn, these antibiotics are regulated by bioscavengers that are selected in the course of evolution. Kinase-mediated phosphorylation represents one of the general strategies for the emergence of antibiotic resistance. ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaz9861
更新日期:2020-06-24 00:00:00
abstract::Fundamental understanding of the charge transport physics of hybrid lead halide perovskite semiconductors is important for advancing their use in high-performance optoelectronics. We use field-effect transistors (FETs) to probe the charge transport mechanism in thin films of methylammonium lead iodide (MAPbI3). We sho...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601935
更新日期:2017-01-27 00:00:00
abstract::Glucose-responsive insulin delivery systems with robust responsiveness that has been validated in animal models, especially in large animal models, remain elusive. Here, we exploit a new strategy to form a micro-sized complex between a charge-switchable polymer with a glucose-sensing moiety and insulin driven by elect...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw4357
更新日期:2019-07-10 00:00:00
abstract::Solar-thermal desalination (STD) is a potentially low-cost, sustainable approach for providing high-quality fresh water in the absence of water and energy infrastructures. Despite recent efforts to advance STD by improving heat-absorbing materials and system designs, the best strategies for maximizing STD performance ...
journal_title:Science advances
pub_type: 杂志文章,评审
doi:10.1126/sciadv.aax0763
更新日期:2019-07-26 00:00:00
abstract::Dendritic cells (DCs) are adept at cross-presentation and initiation of antigen-specific immunity. Clinically, however, DCs produced by in vitro differentiation of monocytes in the presence of exogenous cytokines have been met with limited success. We hypothesized that DCs produced in a physiological manner may be mor...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaz1580
更新日期:2020-03-11 00:00:00
abstract::About 40% of patients with non-small cell lung cancer (NSCLC) have stage IV cancer at the time of diagnosis. The only viable treatment options for metastatic disease are systemic chemotherapy and immunotherapy. Nonetheless, chemoresistance remains a major cause of chemotherapy failure. New immunotherapeutic modalities...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba5542
更新日期:2020-06-17 00:00:00
abstract::Fluid commonly flows in response to an external pressure gradient. However, when a tunnel-containing hydrogel is immersed in water, spontaneous flow occurs through the tunnel without any pressure gradient. We confirmed this flow in a wide range of plant- and animal-derived hydrogels. The flow appears to be driven by a...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba0941
更新日期:2020-05-08 00:00:00
abstract::Biodiversity loss is a social and ecological emergency, and calls have been made for the global expansion of protected areas (PAs) to tackle this crisis. It is unclear, however, where best to locate new PAs to protect biodiversity cost-effectively. To answer this question, we conducted a spatial meta-analysis by overl...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abc3436
更新日期:2020-09-09 00:00:00
abstract::Injection-induced earthquakes pose a serious seismic hazard but also offer an opportunity to gain insight into earthquake physics. Currently used models relating the maximum magnitude of injection-induced earthquakes to injection parameters do not incorporate rupture physics. We develop theoretical estimates, validate...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aap7528
更新日期:2017-12-20 00:00:00
abstract::Meta-regressions of around 1000 cases published over the period 1997-2018 suggest that the direction of the relationship between land area and agricultural performance strongly depends on the performance indicator selected. Net value and efficiency indicators show that larger farms tend to be more performant than smal...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abb8235
更新日期:2020-10-09 00:00:00
abstract::Bones adapt to mechanical forces according to strict principles predicting straight shape. Most bones are, however, paradoxically curved. To solve this paradox, we used computed tomography-based, four-dimensional imaging methods and computational analysis to monitor acute and chronic whole-bone shape adaptation and re...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aax8301
更新日期:2020-03-06 00:00:00
abstract::Coordinatively unsaturated (CUS) iron sites are highly active in catalytic oxidation reactions; however, maintaining the CUS structure of iron during heterogeneous catalytic reactions is a great challenge. Here, we report a strategy to stabilize single-atom CUS iron sites by embedding highly dispersed FeN4 centers in ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1500462
更新日期:2015-12-04 00:00:00
abstract::Understanding how surfaces direct nucleation is a complex problem that limits our ability to predict and control crystal formation. We here address this challenge using high-speed imaging to identify and quantify the sites at which ice nucleates in water droplets on the two natural cleavage faces of macroscopic feldsp...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aav4316
更新日期:2019-02-01 00:00:00
abstract::Organophosphate-based pesticides inhibit acetylcholinesterase (AChE), which plays a pivotal role in neuromuscular function. While spraying in the field, farmworkers get exposed to pesticides through the dermal route. Internalized pesticide inhibits AChE, which leads to neurotoxicity, cardiotoxicity, cognitive dysfunct...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aau1780
更新日期:2018-10-17 00:00:00
abstract::We describe an approach to print composite polymers in high-resolution three-dimensional (3D) architectures that can be rapidly transformed to a new permanent configuration directly by heating. The permanent shape of a component results from the programmed time evolution of the printed shape upon heating via the desig...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1602890
更新日期:2017-04-12 00:00:00
abstract::This study introduces new methods of screening for and tuning chiral space and in so doing identifies a promising set of chiral ligands for asymmetric synthesis. The carbafructopyranosyl-1,2-diamine(s) and salens constructed therefrom are particularly compelling. It is shown that by removing the native anomeric effect...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1500066
更新日期:2015-07-01 00:00:00
abstract::Posthemorrhagic hydrocephalus (PHH) in premature infants is a common neurological disorder treated with invasive neurosurgical interventions. Patients with PHH lack effective therapeutic interventions and suffer chronic comorbidities. Here, we report a murine lysophosphatidic acid (LPA)-induced postnatal PHH model tha...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aax2011
更新日期:2019-10-09 00:00:00
abstract::The urea channel of Helicobacterpylori (HpUreI) is an ideal drug target for preventing gastric cancer but incomplete understanding of its gating mechanism has hampered development of inhibitors for the eradication of H. pylori. Here, we present the cryo-EM structures of HpUreI in closed and open conformations, both at...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aav8423
更新日期:2019-03-20 00:00:00