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PubMed Journals Articles About "Seagrass Biodiversity Both Goal Means Restoration" RSS

20:26 EDT 17th June 2018 | BioPortfolio

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Showing "Seagrass biodiversity both goal means restoration" PubMed Articles 1–25 of 5,900+

Clonal diversity and genetic structure of Enhalus acoroides populations along Hainan Island, China.

Seagrasses are monocotyledons that grow in intertidal and subtidal zones. Seagrass beds are among ecosystems with the highest ecosystem service value. However, seagrass beds are rapidly decline due to anthropogenic disturbances and global climate change. Enhalus acoroides, a monoecious perennial species, is the largest seagrass in stature. It distributes in tropical regions, with Hainan Island as its northern limits. Clonal diversity and genetic structure of E. acoroides populations in Hainan Island were st...


A functional-structural model of ephemeral seagrass growth influenced by environment.

Ephemeral seagrasses that respond rapidly to environmental changes are important marine habitats. However, they are under threat due to human activity and are logistically difficult and expensive to study. This study aimed to develop a new functional-structural environmentally dependent model of ephemeral seagrass, able to integrate our understanding of ephemeral seagrass growth dynamics and assess options for potential management interventions, such as seagrass transplantation.

Seagrass on the brink: Decline of threatened seagrass Posidonia australis continues following protection.

Seagrasses are in decline globally due to sustained pressure from coastal development, water quality declines and the ongoing threat from climate change. The result of this decline has been a change in coastal productivity, a reduction in critical fisheries habitat and increased erosion. Attempts to slow this decline have included legislative protection of habitat and direct restoration efforts. Monitoring the success of these approaches requires tracking changes in the abundance of seagrasses, but such mon...


Indonesia's globally significant seagrass meadows are under widespread threat.

Indonesia's marine ecosystems form a fundamental part of the world's natural heritage, representing a global maxima of marine biodiversity and supporting the world's second largest production of seafood. Seagrasses are a key part of that support. In the absence of empirical data we present evidence from expert opinions as to the state of Indonesia's seagrass ecosystems, their support for ecosystem services, with a focus on fisheries, and the damaging activities that threaten their existence. We further draw...

Influence of surface flattening on biodiversity of terrestrial arthropods during early stages of brown coal spoil heap restoration.

Heterogeneity of environmental conditions is the crucial factor supporting biodiversity in various habitats, including post-mining sites. The effects of micro-topographic heterogeneity on biodiversity and conservation potential of arthropod communities in post-industrial habitats had not been studied before now. At one of the largest European brown coal spoil heaps, we sampled eight groups of terrestrial arthropods with different life strategies (moths, spiders, ground beetles, ants, orthopteroids, centiped...

Predicting the cumulative effect of multiple disturbances on seagrass connectivity.

The rate of exchange, or connectivity, among populations effects their ability to recover after disturbance events. However, there is limited information on the extent to which populations are connected or how multiple disturbances affect connectivity, especially in coastal and marine ecosystems. We used network analysis and the outputs of a biophysical model to measure potential functional connectivity and predict the impact of multiple disturbances on seagrasses in the central Great Barrier Reef World Her...

Spectrum of concepts associated with the term "biodiversity": a case study in a biodiversity hotspot in South America.

In most conservation programs that include public participation, the word "biodiversity" is used. However, many variables influence the public understanding of the term and determine what biodiversity means to local stakeholders. Those representations of the concept must be addressed and included in conservation actions. We asked 47 local stakeholders in a biosphere reserve (BR) located in a biodiversity hotspot in South America, for whom the conservation of biodiversity is not the main focus of interest, t...

Accounting for no net loss: A critical assessment of biodiversity offsetting metrics and methods.

Biodiversity offset strategies are based on the explicit calculation of both losses and gains necessary to establish ecological equivalence between impact and offset areas. Given the importance of quantifying biodiversity values, various accounting methods and metrics are continuously being developed and tested for this purpose. Considering the wide array of alternatives, selecting an appropriate one for a specific project can be not only challenging, but also crucial; accounting methods can strongly influe...

Outcomes from 10 years of biodiversity offsetting.

We quantified net changes to the area and quality of native vegetation after the introduction of biodiversity offsetting in New South Wales, Australia-a policy intended to "prevent broad-scale clearing of native vegetation unless it improves or maintains environmental values." Over 10 years, a total of 21,928ha of native vegetation was approved for clearing under this policy and 83,459ha was established as biodiversity offsets. We estimated that no net loss in the area of native vegetation under this policy...

Community-based native seed production for restoration in Brazil - the role of science and policy.

Large-scale restoration programs in the tropics require large volumes of high quality, genetically diverse and locally adapted seeds from large number of species. However, scarcity of native seeds is a critical restriction to achieve restoration targets. In this paper, we analyze three successful community-based networks that supply native seeds and seedlings for Brazilian Amazon and Cerrado restoration projects. In addition, we propose directions to promote local participation, legal, technical and commerc...

Do non-native species contribute to biodiversity?

The Convention on Biological Diversity (CBD) emphasises the role of biodiversity in delivering benefits essential for all people and, as a result, seeks to safeguard all life-forms. The indices that are used to measure progress towards international conservation and sustainability goals, however, focus solely on the 'native' component of biodiversity. A subset of non-native species can cause undesirable economic, social, or biological effects. But non-native species also contribute to regional biodiversity ...

Increased sediment loads cause non-linear decreases in seagrass suitable habitat extent.

Land-based activities, including deforestation, agriculture, and urbanisation, cause increased erosion, reduced inland and coastal water quality, and subsequent loss or degradation of downstream coastal marine ecosystems. Quantitative approaches to link sediment loads from catchments to metrics of downstream marine ecosystem state are required to calculate the cost effectiveness of taking conservation actions on land to benefits accrued in the ocean. Here we quantify the relationship between sediment loads ...

Seagrass collapse due to synergistic stressors is not anticipated by phenological changes.

Seagrasses are globally declining and often their loss is due to synergies among stressors. We investigated the interactive effects of eutrophication and burial on the Mediterranean seagrass, Posidonia oceanica. A field experiment was conducted to estimate whether shoot survival depends on the interactive effects of three levels of intensity of both stressors and to identify early changes in plants (i.e., morphological, physiological and biochemical, and expression of stress-related genes) that may serve to...

Restoration of Sinus Rhythm in Patients With Persistent Atrial Fibrillation and Obesity: New Possibilities of Pharmacological Cardioversion.

We present in this article 2 cases of successful pharmacological restoration of sinus rhythm by a new class III antiarrhythmic drug refralon in patients with obesity and persistent atrial fibrillation. In both cases, the effective use of refralon was preceded by repeated ineffective attempts of electrical cardioversion. In the article we discuss the role of obesity as the factor leading to a substantial increase of transthoracic electrical resistance, and thus significantly reducing the probability of sinus...

Hidden species diversity in Sylvirana nigrovittata (Amphibia: Ranidae) highlights the importance of taxonomic revisions in biodiversity conservation.

Accurately delimiting species and their geographic ranges is imperative for conservation, especially in areas experiencing rapid habitat loss. Southeast Asia currently has one of the highest rates of deforestation in the world, is home to multiple biodiversity hotspots, and the majority of its countries have developing economies with limited resources for biodiversity conservation. Thus, accurately delimiting species and their ranges is particularly important in this region. We examined genetic and morpholo...

Biodiversity Impact Assessment (BIA+) - methodological framework for screening biodiversity.

For the past twenty years the life cycle assessment (LCA) community has sought to integrate impacts on biodiversity into the LCA framework. However, existing impact assessment methods still fail to do so comprehensively, as they only quantify few impacts related to specific species and specific regions. This paper proposes a methodological framework that will allow LCA practitioners to assess currently missing impacts on biodiversity on a global scale.

Impacts on the seagrass, Zostera nigricaulis, from the herbicide Fusilade Forte® used in the management of Spartina anglica infestations.

The herbicide Fusilade Forte® (FF) is widely applied in agricultural weed management and in the management of the invasive saltmarsh grass, Spartina anglica (ricegrass or cordgrass). FF (active ingredient fluazifop-P acid, FPA) is selective for poaceous grasses. Its primary mode of action is inhibition of the acetyl coenzyme-A carboxylase (ACCase) specific to this taxonomic group, and its secondary mode is by promotion of oxidative stress. FF is applied to S. anglica infestations in the intertidal zone, in...

Quantifying medical student clinical experiences via an ICD Code Logging App.

The logging of ICD Diagnostic, Procedure and Drug codes is one means of tracking the experience of medical students' clinical rotations. The goal is to create a web-based computer and mobile application to track the progress of trainees, monitor the effectiveness of their training locations and be a means of sampling public health status.

The Seagrass Holobiont and Its Microbiome.

Seagrass meadows are ecologically and economically important components of many coastal areas worldwide. Ecosystem services provided by seagrasses include reducing the number of microbial pathogens in the water, providing food, shelter and nurseries for many species, and decreasing the impact of waves on the shorelines. A global assessment reported that 29% of the known areal extent of seagrasses has disappeared since seagrass areas were initially recorded in 1879. Several factors such as direct and indirec...

Management and time preferences for lakes restoration in Brazil.

As in many developing countries, the eutrophication of lakes has become one of the most severe environmental problems in Brazil. We implemented a choice experiment to investigate local preferences for the restoration of five lakes in the city of Campos dos Goytacazes, Brazil. This study focuses on two attributes of the proposed environmental project: 1) the delay in reaching the targeted level of water quality and 2) the institution that would manage the lakes restoration project. Choice responses are analy...

Appropriate application of information from biodiversity databases is critical when investigating species distributions and diversity: a comment on Dallas et al. ().

Using data from biodiversity informatics resources, Dallas et al. (Ecol. Lett., 20, 2017, 1526-1533) suggested limited relationships between climate and local abundance among several taxonomic groups. Investigation of a subset of these data suggests that their results may be misleading due to inappropriate application of the biodiversity data.

Tape seagrass (Enhalus acoroides) as a bioindicator of trace metal contamination in Merambong shoal, Johor Strait, Malaysia.

Revealing the potential of seagrass as a bioindicator for metal pollution is important for assessing marine ecosystem health. Trace metal (111Cd, 63Cu, 60Ni, 208Pb, 66Zn) concentrations in the various parts (root, rhizome, and blade) of tape seagrass (Enhalus acoroides) collected from Merambong shoal of Sungai Pulai estuary, Johor Strait, Malaysia were acid-extracted using a microwave digester and analysed via inductively coupled plasma-mass spectrometry (ICP-MS). The ranges of trace metal concentrations (i...

River Continuity Restoration and Diadromous Fishes: Much More than an Ecological Issue.

Ecosystem fragmentation is a serious threat to biodiversity and one of the main challenges in ecosystem restoration. River continuity restoration (RCR) has often targeted diadromous fishes, a group of species supporting strong cultural and economic values and especially sensitive to river fragmentation. Yet it has frequently produced mixed results and diadromous fishes remain at very low levels of abundance. Against this background, this paper presents the main challenges for defining, evaluating and achiev...

Long-term Outcomes Associated with Triple-Goal Achievement in Patients with Type 2 Diabetes Mellitus (T2DM).

This study was designed to compare the risk of long-term health outcomes, including microvascular, macrovascular complications and mortality, across 4 cohorts: triple-goal, dual-goal, single-goal, and no-goal achievers.

Aquaculture expansion in Brazilian freshwaters against the Aichi Biodiversity Targets.

The Convention on Biological Diversity proposed the Aichi Biodiversity Targets to improve conservation policies and to balance economic development, social welfare, and the maintenance of biodiversity/ecosystem services. Brazil is a signatory of the Aichi Biodiversity Targets and is the most diverse country in terms of freshwater fish, but its national policies have supported the development of unsustainable commercial and ornamental aquaculture, which has led to serious disturbances to inland ecosystems an...


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