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Martelo J, Gkenas C, Ribeiro D, Alves MJ, Ribeiro F, Cucherousset J, Gago J, Magalhães MF. Local environment and fragmentation by drought and damming shape different components of native and non-native fish beta diversity across pool refuges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172517. [PMID: 38641092 DOI: 10.1016/j.scitotenv.2024.172517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
Pool refuges are critical for maintaining stream fish diversity in increasingly intermittent streams. Yet, the patterns and drivers of beta diversity of native and non-native fish in pool refuges remain poorly known. Focusing on Mediterranean streams, we decomposed beta diversity of native and non-native fish into richness difference (RichDiff) and species replacement (Repl), and local (LCBD, LCBDRichDiff and LCBDRepl) and species (SCBD) contributions. We assessed the influence of environmental and spatial factors associated with drought and damming fragmentations on beta diversity components and LCBDs, and of local species richness and occupancy on LCBDs and SCBD, respectively. Overall, non-native species showed a more limited occupancy of pool refuges than native fish. RichDiff dominated beta diversity, though it was influenced by drought and damming fragmentations for native fish and local environment for non-native fish. Repl for native fish was slightly influenced by local environment, but for non-native fish was largely driven by drought and damming, albeit with a contribution of local environment as well. LCBD and LCBDRichDiff increased in pools in low order streams for native fish and at low elevations for non-native fish, and with high or low species richness. SCBD was higher for native species with intermediated pool occupancy, but for non-native species with low occupancy. Our results suggest that stream fragmentation may drive native species loss and non-native species replacement in pool refuges, and that environmental filtering may shape non-native species loss. Pools in lower order streams harbouring unique species-rich or species-poor assemblages should be prioritize for conservation and restoration, respectively, and pools at low elevation with unique non-native assemblages should deserve control efforts. We encourage the partitioning of beta diversity and individual analysis of native and non-native fish in intermittent streams, which may be key in stressing the importance of pool refuges in safeguarding native fish diversity.
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Affiliation(s)
- Joana Martelo
- cE3c- Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal; MARE, Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
| | - Christos Gkenas
- MARE, Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Diogo Ribeiro
- MARE, Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - M Judite Alves
- cE3c- Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal; Museum of Natural History and Sciences, University of Lisbon, Lisbon, Portugal
| | - Filipe Ribeiro
- MARE, Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Julien Cucherousset
- Laboratoire EDB (UMR 5174), CNRS, University Toulouse III, Paul Sabatier, France
| | - João Gago
- MARE, Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Faculty of Sciences, University of Lisbon, Lisbon, Portugal; Escola Superior Agrária de Santarém, Instituto Politécnico de Santarém, Santarém, Portugal; CERNAS, Research Centre for Natural Resources, Environment and Society, Portugal
| | - M Filomena Magalhães
- cE3c- Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
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Bennett SK, Lambert AM, Carey SP, Braman CA. Evaluating pole cutting survival and growth for riparian forest restoration during invasion by polyphagous shot hole borer. Restor Ecol 2022. [DOI: 10.1111/rec.13578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shelley K. Bennett
- Smithsonian Environmental Research Center 647 Contees Wharf Road, Edgewater MD 21037 U.S.A
| | - Adam M. Lambert
- Marine Science Institute University of California Santa Barbara CA 93106‐6150 U.S.A
- Cheadle Center for Biodiversity and Ecological Restoration University of California Santa Barbara CA 93106‐9615 U.S.A
| | - Sean P. Carey
- Marine Science Institute University of California Santa Barbara CA 93106‐6150 U.S.A
| | - Charles A. Braman
- Marine Science Institute University of California Santa Barbara CA 93106‐6150 U.S.A
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Lombardo L, Farolfi C, Tombesi S, Novelli E, Capri E. Development of a sustainability technical guide for the Italian olive oil supply chain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 820:153332. [PMID: 35074385 DOI: 10.1016/j.scitotenv.2022.153332] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Italian olive growing must aim at the transition to economically and environmentally sustainable management systems, linked to premium quality production and to a recognized and remunerated context of biodiversity conservation in compliance with the provisions of the European Union New Green Deal and United Nations Agenda 2030. To assist and facilitate companies in this step, a sustainability technical guide for the Italian olive oil supply chain has been developed, with reference to the four pillars of sustainability. The guide, consisting of 42 requirements, was submitted to 18 olive farms from 8 different Italian regions participating in this pilot study, to assess their level of total sustainability and to receive feedbacks throughout the drafting process. Taken as a whole, the companies have proved to be virtuous in meeting the requirements provided, with percentages of compliance ranging from 86 to 96% according to pillar and from 70 to 100% according to company and showed a remarkable spirit of collaboration and involvement in the construction of the guide. In this regard, the text is aimed to represent a participatory standard for Italian institutions and for other olive countries.
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Affiliation(s)
- Luca Lombardo
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Camilla Farolfi
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Sergio Tombesi
- Department of Agronomy, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Elisa Novelli
- Oleificio Zucchi, Via Acquaviva, 12, 26100 Cremona, Italy
| | - Ettore Capri
- European Observatory on Sustainable Agriculture (OPERA), Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
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Peacock MM, Gustin MS, Kirchoff VS, Robinson ML, Hekkala E, Pizzarro-Barraza C, Loux T. Native fishes in the Truckee River: Are in-stream structures and patterns of population genetic structure related? THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:221-236. [PMID: 27135585 DOI: 10.1016/j.scitotenv.2016.04.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 06/05/2023]
Abstract
In-stream structures are recognized as significant impediments to movement for freshwater fishes. Apex predators such as salmonids have been the focus of much research on the impacts of such barriers to population dynamics and population viability however much less research has focused on native fishes, where in-stream structures may have a greater impact on long term population viability of these smaller, less mobile species. Patterns of genetic structure on a riverscape can provide information on which structures represent real barriers to movement for fish species and under what specific flow conditions. Here we characterize the impact of 41 dam and diversion structures on movement dynamics under varying flow conditions for a suite of six native fishes found in the Truckee River of California and Nevada. Microsatellite loci were used to estimate total allelic diversity, effective population size and assess genetic population structure. Although there is spatial overlap among species within the river there are clear differences in species distributions within the watershed. Observed population genetic structure was associated with in-stream structures, but only under low flow conditions. High total discharge in 2006 allowed fish to move over potential barriers resulting in no observed population genetic structure for any species in 2007. The efficacy of in-stream structures to impede movement and isolate fish emerged only after multiple years of low flow conditions. Our results suggest that restricted movement of fish species, as a result of in-stream barriers, can be mitigated by flow management. However, as flow dynamics are likely to be altered under global climate change, fragmentation due to barriers could isolate stream fishes into small subpopulations susceptible to both demographic losses and losses of genetic variation.
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Affiliation(s)
- Mary M Peacock
- Department of Biology, University of Nevada-Reno, Reno, NV 89557, USA; Ecology, Evolution, and Conservation Biology Graduate Program, University of Nevada-Reno, Reno, NV 89557, USA.
| | - Mae S Gustin
- Department of Natural Resources and Environmental Science, University of Nevada-Reno, Reno, NV 89557, USA
| | | | - Morgan L Robinson
- Department of Biology, University of Nevada-Reno, Reno, NV 89557, USA; Ecology, Evolution, and Conservation Biology Graduate Program, University of Nevada-Reno, Reno, NV 89557, USA
| | - Evon Hekkala
- Department of Biological Sciences, Fordham University, New York, NY 10458, USA
| | - Claudia Pizzarro-Barraza
- Department of Natural Resources and Environmental Science, University of Nevada-Reno, Reno, NV 89557, USA
| | - Tim Loux
- United States Fish and Wildlife Service, Lahontan National Fish Hatchery Complex, 710 Highway 395, Gardnerville, NV 89410, USA
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Fish functional traits correlated with environmental variables in a temperate biodiversity hotspot. PLoS One 2014; 9:e93237. [PMID: 24676053 PMCID: PMC3968117 DOI: 10.1371/journal.pone.0093237] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 03/01/2014] [Indexed: 11/30/2022] Open
Abstract
The global biodiversity crisis has invigorated the search for generalized patterns in most disciplines within the natural sciences. Studies based on organismal functional traits attempt to broaden implications of results by identifying the response of functional traits, instead of taxonomic units, to environmental variables. Determining the functional trait responses enables more direct comparisons with, or predictions for, communities of different taxonomic composition. The North American freshwater fish fauna is both diverse and increasingly imperiled through human mediated disturbances, including climate change. The Tennessee River, USA, contains one of the most diverse assemblages of freshwater fish in North America and has more imperiled species than other rivers, but there has been no trait-based study of community structure in the system. We identified 211 localities in the upper Tennessee River that were sampled by the Tennessee Valley Authority between 2009 and 2011 and compiled fish functional traits for the observed species and environmental variables for each locality. Using fourth corner analysis, we identified significant correlations between many fish functional traits and environmental variables. Functional traits associated with an opportunistic life history strategy were correlated with localities subject to greater land use disturbance and less flow regulation, while functional traits associated with a periodic life history strategy were correlated with localities subject to regular disturbance and regulated flow. These are patterns observed at the continental scale, highlighting the generalizability of trait-based methods. Contrary to studies that found no community structure differences when considering riparian buffer zones, we found that fish functional traits were correlated with different environmental variables between analyses with buffer zones vs. entire catchment area land cover proportions. Using existing databases and fourth corner analysis, our results support the broad application potential for trait-based methods and indicate trait-based methods can detect environmental filtering by riparian zone land cover.
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