Environmental Biology of Fishes, Год журнала: 2021, Номер 104(5), С. 569 - 579
Опубликована: Май 1, 2021
Язык: Английский
Ecosphere, Год журнала: 2022, Номер 13(2)
Опубликована: Фев. 1, 2022
Abstract Habitat fragmentation of submerged aquatic vegetation (SAV) transforms the spatial pattern seascapes by changing both total area and configuration habitat patches. The ecological effects SAV are most often assessed using metrics biological community composition (e.g., species assemblage changes). We know considerably less about seascape structure on processes such as food web function energy flow. Here, we assess difference in trophic niche Pinfish ( Lagodon rhomboides , a generalist omnivore) across gradient from continuous to highly fragmented Biscayne Bay (Miami, Florida, USA). influenced freshwater management practices that alter distribution fish abundance, diversity, assemblage. combined maps with stable isotope hypervolume analyses determine how size overlap varied changes seascape. observed similar resource use seascape, but increased more seascapes, suggesting diversification roles flow pathways. collected habitats had smaller higher levels. Both response manifested threshold depended distinct characteristics (amount vs. configuration) environmental conditions. Our results suggest has implications could affect cascading consequences for stability ecosystem functioning.
Язык: Английский
Процитировано
14
Journal of Ecology, Год журнала: 2020, Номер 109(9), С. 3211 - 3223
Опубликована: Ноя. 9, 2020
Abstract Stress gradients influence many ecosystem processes and properties, including recovery from resistance to disturbance. While recent analytical approaches have advanced multivariate metrics of resilience that allow quantification conceptual models identification thresholds state change, these are not often translated landscape scales. Using natural restored salt marshes in Louisiana, USA, we quantified plant community along flooding stress gradients. n ‐dimensional hypervolumes biomass structure were simulated using field data collected disturbance‐recovery experiments. The relationships between then mapped at community‐ landscape‐relevant scales by scaling with airborne‐derived across the region. Greater pre‐disturbance abiotic decreased live below‐ground, but above‐ground, biomass, ultimately led lower post‐disturbance total recovery, rates communities. Vegetated plots flooded >52% time transitioned an alternative, unvegetated after Mapping revealed differences spatial patterns resilience—highlighting low, interior marsh edges as especially vulnerable combination chronic acute At scale, approximately half area (48%) is change pulse disturbances. Synthesis . Ultimately, quantify ball‐and‐cup model for a its alternative state, mudflat. We find increasing due climate diminishes resilience, interaction common episodic disturbances necessary reveal transitions states thresholds. Quantifying mapping where may exist this fashion improves ecologists' ability investigate mechanisms gradient control on emergent properties while providing spatially explicit resources managing ecosystems according their projected resilience.
Язык: Английский
Процитировано
20
Hydrobiologia, Год журнала: 2024, Номер 851(11), С. 2609 - 2626
Опубликована: Фев. 16, 2024
Язык: Английский
Процитировано
2
Ecological Engineering, Год журнала: 2021, Номер 166, С. 106239 - 106239
Опубликована: Апрель 15, 2021
Язык: Английский
Процитировано
12
Ecological Indicators, Год журнала: 2022, Номер 143, С. 109385 - 109385
Опубликована: Сен. 8, 2022
A combination of ecological and socio-economic outcome indicators is essential for understanding assessing the effectiveness remediation restoration degraded ecosystems revitalizing communities that could benefit from these ecosystem management activities. In this paper, we propose develop a conceptual approach to characterize suitability incorporates attributes support structural diversity functionality, stakeholder values perceptions, benefits derived goods services. structured literature review was used identify existing frameworks inform foundation characterizing suitability. The structure primarily builds social in International Principles Standards Practice Ecological Restoration (Gann et al., 2019). We provide example estuaries. This based on habitat food web characterizations with provisioning services desired prioritize evaluate effectiveness. foundational work sets stage developing composite measure holistic presented complements information regarding evaluations. Characterizing novel way incorporate communicate potential outcomes managers stakeholders.
Язык: Английский
Процитировано
9
Frontiers in Marine Science, Год журнала: 2022, Номер 9
Опубликована: Май 11, 2022
The comparison of trophic structure and energy flow between natural artificial reefs is imperative to evaluate whether these man-made structures work similarly comparable reefs. Here, characterize the potential difference in functioning two types reef ecosystems, models (Ecopath) at an adjacent on coast north Yellow Sea, China, were established. Both Ecopath divided into 18 functional groups from primary producers (algae phytoplankton) detritus predatory species (e.g., Sebastes schlegelii ). Model outputs showed that ecosystem scale was smaller (total system throughput (TPP) = 6,455.47 t·km −2 ·year −1 ) relative its counterpart (TPP 9,490.48 At both types, a large proportion occurred levels I II, most production utilized through pathway. This result implies bottom-up control for cases. However, systems behaving reasonable manner, as mean transfer efficiencies similar Lindeman efficiency (10%). maturity not inferior value total production/total respiration (TPP/TR). Moreover, connectance index (CI) omnivory (SOI) slightly higher well other coastal with parallel latitudes, suggesting current has formed complicated interspecies relations high-level stability. updates our knowledge about evolvement established provides baseline efficient management zones further investigations.
Язык: Английский
Процитировано
8
Estuaries and Coasts, Год журнала: 2020, Номер 44(6), С. 1671 - 1680
Опубликована: Окт. 26, 2020
Язык: Английский
Процитировано
11
ICES Journal of Marine Science, Год журнала: 2022, Номер 79(6), С. 1831 - 1842
Опубликована: Июнь 20, 2022
Abstract Macrophyte foundation species provide both habitat structure and primary production, loss of these habitats can alter interactions lead to changes in energy flow food webs. Extensive seagrass meadows Florida Bay have recently experienced a widespread due Thalassia testudinum mass mortality event 2015 associated with prolonged hypersalinity bottom-water anoxia. Using stable isotope analysis paired Bayesian mixing models, we investigated the basal resource use seven seagrass-associated consumers across areas affected by die-off. Three years after die-off, did not differ for collected inside outside die-off areas. Instead, showed seasonal patterns most important wet season (58%), while epiphytes were dry (44%). Additionally, intraspecific spatial variability was lower compared season. We unable detect legacy effect major disturbance on common Bay.
Язык: Английский
Процитировано
7
PeerJ, Год журнала: 2023, Номер 11, С. e15422 - e15422
Опубликована: Июнь 6, 2023
Mangroves are coastal wetlands with high biodiversity and productivity, great interaction environments. In the face of worldwide mangrove loss, restoration projects attempt to recover ecosystem composition functioning over time. Our objective was examine compare food webs in areas different times a reference Términos Lagoon, Mexico. We estimated trophic structure, identified carbon resources that maintain aquatic consumers through analysis stable isotopes, compared niche restored mangroves mangrove. analyzed environmental variables, contributions during three seasons: rainy, dry, “nortes”. Environmental changes structure changed response regional seasons. Bayesian mixing models indicated varied seasonally as primary productivity developed at Lagoon. As expected, assimilation C 3 plants highest, (“nortes” season) secondary resource (dry rainy seasons). The depended mainly on allochthonous (seagrass, epiphytes, phytoplankton). these highlighted importance connectivity input sources from nearby Trophic showed area longer time more similar mangrove, which is evidence efficacy process, well function
Язык: Английский
Процитировано
4
Restoration Ecology, Год журнала: 2024, Номер 32(3)
Опубликована: Янв. 7, 2024
Restoration projects are increasingly widespread and many promote habitat succession the diversity abundance of faunal communities. These positive effects on biodiversity may extend to enhancing ecological functioning resilience previously degraded ecosystems, but this is rarely quantified. This study surveyed a 200‐ha restoring coastal wetland three control wetlands in Maroochy River, eastern Australia compare restoration consumption carrion biodiversity, abundance, functional functionally important fish crustaceans. Carrion by crustaceans was measured every 6 months from spring 2017 until 2021 for nine events using combination baited cameras scavenging assays. We found improved rates diversity, scavenger species. Despite scavengers consumption, two species, longfin eels ( Anguilla reinhardtii ) mud crabs Scylla serrata ), most predictors rates. The spatial distribution concentrated areas with high saltmarsh extent, moderate mangrove salinity, which also resembled both crabs. show that can key functions increases likely be characterized low redundancy greater complementarity. Therefore, maintaining or increasing species should become objective future projects.
Язык: Английский
Процитировано
1