Locally-managed marine areas: multiple objectives and diverse strategies

2014 ◽  
Vol 20 (2) ◽  
pp. 165 ◽  
Author(s):  
Stacy D Jupiter ◽  
Philippa J Cohen ◽  
Rebecca Weeks ◽  
Alifereti Tawake ◽  
Hugh Govan

Community-based management and co-management are mainstream approaches to marine conservation and sustainable resource management. In the tropical Pacific, these approaches have proliferated through locally-managed marine areas (LMMAs). LMMAs have garnered support because of their adaptability to different contexts and focus on locally identified objectives, negotiated and implemented by stakeholders. While LMMA managers may be knowledgeable about their specific sites, broader understanding of objectives, management actions and outcomes of local management efforts remain limited. We interviewed 50 practitioners from the tropical Pacific and identified eight overarching objectives for LMMA establishment and implementation: (1) enhancing long-term sustainability of resource use; (2) increasing shortterm harvesting efficiency; (3) restoring biodiversity and ecosystems; (4) maintaining or restoring breeding biomass of fish or invertebrates; (5) enhancing the economy and livelihoods; (6) reinforcing customs; (7) asserting access and tenure rights; and (8) empowering communities. We reviewed outcomes for single or multiple objectives from published studies of LMMAs and go on to highlight synergies and trade-offs among objectives. The management actions or ʻtoolsʼ implemented for particular objectives broadly included: permanent closures; periodically-harvested closures; restrictions on gear, access or species; livelihood diversification strategies; and participatory and engagement processes. Although LMMAs are numerous and proliferating, we found relatively few cases in the tropical Pacific that adequately described how objectives and management tools were negotiated, reported the tools implemented, or empirically tested outcomes and seldom within a regional context. This paper provides some direction for addressing these research gaps.

2019 ◽  
Vol 124 (4) ◽  
pp. 2626-2640 ◽  
Author(s):  
Yang Li ◽  
Quanliang Chen ◽  
Xiaoran Liu ◽  
Jianping Li ◽  
Nan Xing ◽  
...  

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 188
Author(s):  
Bradley S. Higbee ◽  
Charles S. Burks

Damage from Amyelois transitella, a key pest of almonds in California, is managed by destruction of overwintering hosts, timely harvest, and insecticides. Mating disruption has been an increasingly frequent addition to these management tools. Efficacy of mating disruption for control of navel orangeworm damage has been demonstrated in experiments that included control plots not treated with either mating disruption or insecticide. However, the navel orangeworm flies much farther than many orchard pests, so large plots of an expensive crop are required for such research. A large almond orchard was subdivided into replicate blocks of 96 to 224 ha and used to compare harvest damage from navel orangeworm in almonds treated with both mating disruption and insecticide, or with either alone. Regression of navel orangeworm damage in researcher-collected harvest samples from the interior and center of management blocks on damage in huller samples found good correlation for both and supported previous assumptions that huller samples underreport navel orangeworm damage. Blocks treated with both mating disruption and insecticide had lower damage than those treated with either alone in 9 of the 10 years examined. Use of insecticide had a stronger impact than doubling the dispenser rate from 2.5 to 5 per ha, and long-term comparisons of relative navel orangeworm damage to earlier- and later-harvested varieties revealed greater variation than previously demonstrated. These findings are an economically important confirmation of trade-offs in economic management of this critical pest. Additional monitoring tools and research tactics will be necessary to fulfill the potential of mating disruption to reduce insecticide use for navel orangeworm.


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9236
Author(s):  
Ruleo Camacho ◽  
Sophia Steele ◽  
Shanna Challenger ◽  
Mark Archibald

The nation of Antigua and Barbuda has experienced major degradation of its coral reef ecosystems over the past 40+ years. The primary drivers of this degradation are multiple and are highly linked to anthropogenic influences, including over-exploitation and poor management of marine resources. The effectiveness of management actions in marine protected areas (MPAs) has often been hampered by a lack of data to inform management recommendations. This was emphasized by The Nature Conservancy’s (TNC) Coral Reef Report Card which highlighted not only the lack of data collection in Antigua and Barbuda and other Caribbean nations, but also illustrated how spatially dispersed available datasets are. The government of Antigua and Barbuda recognized the need for a marine data collection program to better inform the designation and management of MPAs as a tool to improve the health of the marine ecosystems. The Atlantic Gulf Rapid Reef Assessment (AGRRA) protocol has been identified as a means to address planning and management for marine areas. Three AGRRA surveys have been conducted in the years following the TNC 2016 report, in previously established managed areas: North East Marine Management Area (NEMMA) in 2017 and Nelson Dockyard National Park (NDNP) in 2019 as well as areas outlined for future management (Redonda in 2018). Our surveys were conducted to provide updated datasets to inform management for the aforementioned areas. While the results of these surveys mirror the underlying poor coral reef-health conditions, which have been shown to exist within the Caribbean region, they also highlight intra-site variation that exists within each survey location. This knowledge can be crucial in guiding management decisions in these marine areas, through zoning and other management prescriptions. Additionally, the marine surveys conducted around Redonda established useful marine baselines to aid in monitoring the island’s recovery following removal of terrestrial invasive species. This article provides an overview of data collected using the AGRRA methodology in marine zones across Antigua and Barbuda which have current or future management prescriptions and provides recommendations to demonstrate the data’s future utilization for marine conservation and management.


F1000Research ◽  
2015 ◽  
Vol 3 ◽  
pp. 91 ◽  
Author(s):  
Rebecca Weeks ◽  
Robert L. Pressey ◽  
Joanne R. Wilson ◽  
Maurice Knight ◽  
Vera Horigue ◽  
...  

Systematic conservation planning increasingly underpins the conservation and management of marine and coastal ecosystems worldwide. Amongst other benefits, conservation planning provides transparency in decision-making, efficiency in the use of limited resources, the ability to minimise conflict between diverse objectives, and to guide strategic expansion of local actions to maximise their cumulative impact. The Coral Triangle has long been recognised as a global marine conservation priority, and has been the subject of huge investment in conservation during the last five years through the Coral Triangle Initiative on Coral Reefs, Fisheries and Food Security. Yet conservation planning has had relatively little influence in this region. To explore why this is the case, we identify and discuss 10 challenges that must be resolved if conservation planning is to effectively inform management actions in the Coral Triangle. These are: making conservation planning accessible; integrating with other planning processes; building local capacity for conservation planning; institutionalising conservation planning within governments; integrating plans across governance levels; planning across governance boundaries; planning for multiple tools and objectives; understanding limitations of data; developing better measures of progress and effectiveness; and making a long term commitment. Most important is a conceptual shift from conservation planning undertaken as a project, to planning undertaken as a process, with dedicated financial and human resources committed to long-term engagement.


2021 ◽  
Author(s):  
Yong Sun Kim ◽  
Minho Kwon ◽  
Eui-Seok Chung ◽  
Sang-Wook Yeh ◽  
Jin-Yong Jeong ◽  
...  

Abstract Through statistical estimations on reconstructed datasets for the period 1982−2020 after removing a long-term trend, we observed that there was a drastic regime shift in the early summer’s connection between the YECS and the tropical Pacific in the early 2000s. The summer YECS SSTs had seemed to be modulated by local oceanic and atmospheric processes along with their marginal coupling to the tropical Pacific during the pre-2003 period before the regime shift. In contrast, an interhemispheric YECS−tropical southeastern Pacific (SEP) coupling appeared after the regime shift. This teleconnection was at least partially attributed to a reduced El Niño signature in the tropical Pacific, which favors the emergence of the South Pacific meridional mode (SPMM) independently from ENSO signals. Precipitation anomalies in the western tropical Pacific act as an atmospheric bridge to mediate the air-sea interacted variability associated with the SPMM into the North Pacific. The susceptibility of the YECS to atmospheric forcing may highlight the role of SST over the YECS as a potential indicator of basin-scale climate changes.


2014 ◽  
Vol 27 (7) ◽  
pp. 2545-2561 ◽  
Author(s):  
De-Zheng Sun ◽  
Tao Zhang ◽  
Yan Sun ◽  
Yongqiang Yu

Abstract To better understand the causes of climate change in the tropical Pacific on the decadal and longer time scales, the rectification effect of ENSO events is delineated by contrasting the time-mean state of two forced ocean GCM experiments. In one of them, the long-term mean surface wind stress of 1950–2011 is applied, while in the other, the surface wind stress used is the long-term mean surface wind stress of 1950–2011 plus the interannual monthly anomalies over the period. Thus, the long-term means of the surface wind stress in the two runs are identical. The two experiments also use the same relaxation boundary conditions, that is, the SST is restored to the same prescribed values. The two runs, however, are found to yield significantly different mean climate for the tropical Pacific. The mean state of the run with interannual fluctuations in the surface winds is found to have a cooler warm pool, warmer thermocline water, and warmer eastern surface Pacific than the run without interannual fluctuations in the surface winds. The warming of the eastern Pacific has a pattern that resembles the observed decadal warming. In particular, the pattern features an off-equator maximum as the observed decadal warming. The spatial pattern of the time-mean upper-ocean temperature differences between the two experiments is shown to resemble that of the differences in the nonlinear dynamic heating, underscoring the role of the nonlinear ocean dynamics in the rectification. The study strengthens the suggestion that rectification of ENSO can be a viable mechanism for climate change of decadal and longer time scales.


Science ◽  
1991 ◽  
Vol 254 (5039) ◽  
pp. 1771-1773 ◽  
Author(s):  
K. S. GAGE ◽  
J. R. MCAFEE ◽  
D. A. CARTER ◽  
W. L. ECKLUND ◽  
A. C. RIDDLE ◽  
...  

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