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94 results for “Conservation strategies”
Sacred groves of Central India: Diversity status, carbon storage and conservation strategies
<p>Sacred groves (SGs) play an important role in the conservation of local biodiversity and provide numerous ecosystem services worldwide. We studied how the ecological status of Central Indian SGs contributes to regional tree diversity and carbon (C) storage. We inventoried the trees in fifty-nine SGs of Madhya Pradesh and recorded a total of 109 tree species (90 genera, 40 families). The most species-rich families were Fabaceae, Combretaceae, Malvaceae and Moraceae. The tree density ranged from 75 to 925 individuals ha<sup>-1</sup> (mean: 398 ± 32 individuals ha<sup>-1</sup>), while the basal area varied from 2.5 to 69.2 m<sup>2</sup> ha<sup>-1</sup> (mean: 24.2 ± 1.9 m<sup>2</sup> ha<sup>-1</sup>). The total C stock {tree C + soil organic C (SOC; 0-30 cm)} ranged from 44.7 to 455.4 Mg C ha<sup>-1</sup> (mean: 153.8 ± 9.6 Mg C ha<sup>-1</sup>) across the SGs. The studied SGs represented 74.7% of the total tree diversity and contained 33.1% higher total C stock than the forests of the state. Tree C stock was significantly positively correlated with tree basal area (<em>r<sub>57</sub></em> = 0.965,<em> P</em> < 0.0001), distance from the nearest village (<em>r<sub>57</sub></em> = 0.432, <em>P</em> < 0.001) and number of years of existence (<em>r<sub>57</sub></em> = 0.615, <em>P</em> < 0.0001). The present study highlighted the crucial role of the studied SGs in sustaining regional biodiversity and storing significant amounts of C in biomass and soil. Continued conservation efforts and contained anthropogenic interferences are necessary in order to maintain the current role of these SGs as biodiversity and carbon reservoirs of Central India.</p>
Landscape conservation as a strategy for recovering biodiversity: lessons from a long-term program of pasture restoration in the southern Atlantic Forest
<p class="MsoNoSpacing"><span>Although ecological restoration has entered the global agenda to reverse different anthropogenic disturbances, we still know little about how this solution interacts with other conservation strategies, to avoid the progressive loss of species and ecosystem services. </span></p> <p class="MsoNoSpacing"><span>Here we evaluate one of the pioneering restoration programs in the southern Brazilian Atlantic Forest, where the combination of conservation and restoration efforts have been carried out for 20 years. Specifically, we tested how landscape characteristics, restoration strategies <span class="msoDel"> </span>and environmental characteristics affect the results of the restoration of pastures. </span></p> <p class="MsoNoSpacing"><span>We established 65 circular plots (total 4.0 ha) along restoration areas (3-10 years) and sampled trees and shrubs composing the canopy (DBH <u>></u> 5cm) and understory (DBH< 5cm, height > 1.3m). We analyzed the landscape metrics (proportion of old-growth forests in 200 m, 500m and 1000m buffers around each plot; and area and distance of the nearest-neighboring old-growth forests). We explored the multiple effects of landscape, restoration strategy (reforestation, natural regeneration) and environmental variables (soil, pasture grass types) on the species composition and multiple diversity metrics of restoration areas. </span></p> <p class="MsoNoSpacing"><span>The species composition was very similar among restoration ages and restoration strategies. We found positive and strong effects of old-growth forest (200 m buffer) proportion on the species richness and Shannon diversity (canopy and understory), aboveground biomass (canopy) and functional diversity (understory) of restoration areas. The restoration strategies affected forest structure, and, in general, the reforestation strategy increased aboveground biomass, Shannon, functional and phylogenetic diversities (in canopy), and percentage of endemic species and biomass (understory), when compared to natural regeneration. </span></p> <p class="MsoNoSpacing"><span>The 20 year-experience in the southern Atlantic Forest showed that programs focused on landscape conservation associated with a mixture of restoration strategies (i.e. natural regeneration in larger areas and active restoration in more disturbed sites)<span class="msoDel"> </span>, can be an efficient strategy to ensure biodiversity and ecosystem services in tropical landscapes.</span></p> <p><span>Synthesis and applications</span><span>: To manage degraded tropical lands and achieve global targets for biodiversity and ecosystem services, it is necessary to first ensure the conservation of natural remnants and then use multiple restoration strategies in less resilient areas.</span></p>
Highly conserved thermal performance strategies may limit adaptive potential in corals
<p>Increasing seawater temperatures are expected to have profound consequences for reef-building corals' physiology. Understanding how demography changes in response to chronic exposure to warming will help forecast how coral communities will respond to climate change. Here, we measure growth rates of coral fragments of four common species, while exposing them to temperatures ranging from 19 to 31˚C for one month to calibrate their thermal-performance curves (TPCs). Our results show that, while there are contrasting differences between species, the shape of the TPCs was remarkably consistent among individuals of the same species. The low variation in thermal sensitivity within species may imply a reduced capacity for rapid adaptive responses to future changes in thermal regimes. Additionally, interspecific differences in thermal responses show a negative relationship between maximum growth and thermal optima, contradicting expectations derived from the classic "warmer-is-better" hypothesis. Among species, there was a trade-off between current and future growth, whereby most species perform well under current thermal regimes but are susceptible to future increases in temperature. Increases in water temperature with climate change are likely to reduce growth rates, further hampering future coral reef recovery rates and potentially altering community composition.</p>
Supplementary data and material, Global strategy for the conservation and use of eggplants.
<p>Supplementary data and material from</p> <p>Solberg, S., van Zonneveld, M., Rakha, M. T. , Taher, D. I. , Prohens, J., Jarret, R. van Dooijeweert, W., and Peter Giovannini. 2022. Global strategy for the conservation and use of eggplants. Global Crop Diversity Trust. Bonn, Germany.</p>
Monocots and eudicots have more conservative flower water use strategies than basal angiosperms
<p>Water balance is crucial for the growth and flowering of plants. However, the mechanisms by which flowers maintain water balance are poorly understood across different angiosperm branches. Here, we investigated 30 floral hydraulic and economics traits in 24 species from ANA grade, magnoliids, monocots, and eudicots. We found that basal angiosperms had richer petal stomatal density, higher pedicel hydraulic diameter, and flower mass per area, but lower pedicel vessel wall reinforcement, and epidermal cell thickness, compared to monocots and eudicots. This indicates that basal angiosperms maintain water balance with high water supply and consumption, while monocots and eudicots maintain water balance more conservatively. We also observed significant trade-offs and coordination among different floral traits. Specifically, pedicel theoretical hydraulic conductivity was positively correlated with petal stomatal density, flower water potential at turgor loss point, and maximum vessel diameter, but was negatively correlated with flower construction cost, vessel density, and pedicel vessel wall reinforcement. Floral traits associated with reproduction, such as floral longevity and size, were strongly linked with its physiological and anatomical traits. Our results systematically reveal the variation in flower economics and hydraulic traits from different angiosperm branches, deepening the understanding of flower water use strategies among these plant taxa.</p>
A Randomized Controlled Trial of a Conservative Fluid Balance Strategy for Patients With Sepsis and Cardiopulmonary Dysfunction (BALANCE Study)
ClinicalTrials.gov study NCT02159079. IPD Sharing: Not stated. Countries: 1. Publications: 1.
A Phase II Trial Evaluating an Organ-conserving Strategy by Radiochemotherapy for Muscle-infiltrative Bladder Cancer
ClinicalTrials.gov study NCT01495676. IPD Sharing: NO. Countries: 1. Publications: 26.
Highly conserved thermal performance strategies may limit adaptive potential in corals
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Climate warming could free cold-adapted trees from C-conservative allocation strategy of storage over growth
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Data from: What shapes the genetic diversity of the <em>Alnus cordata</em> species across its Italian native range? informing conservation strategies
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Sacred groves of Central India: Diversity status, carbon storage and conservation strategies
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Landscape conservation as a strategy for recovering biodiversity: lessons from a long-term program of pasture restoration in the southern Atlantic Forest
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The umbrella value of caribou management strategies for biodiversity conservation in boreal forests under global change
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Monocots and eudicots have more conservative flower water use strategies than basal angiosperms
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Cross-seasonal effects in the American Woodcock: conditions prior to fall migration relate to migration strategy and its implications for conservation
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Data from: Balancing genetic uniqueness and genetic variation in determining conservation and translocation strategies: a comprehensive case study of threatened dwarf galaxias, Galaxiella pusilla (Mack) (Pisces: Galaxiidae)
Genetic markers are widely used to define and manage populations of threatened species based on the notion that populations with unique lineages of mtDNA and well-differentiated nuclear marker frequencies should be treated separately. However a danger of this approach is that genetic uniqueness might be emphasized at the cost of genetic diversity, which is essential for adaptation and is potentially boosted by mixing geographically separate populations. Here we re-explore the issue of defining management units, focussing on a detailed study of Galaxiella pusilla, a small freshwater fish of national conservation significance in Australia. Using a combination of microsatellite and mitochondrial markers, 51 populations across the species range were surveyed for genetic structure and diversity. We found an inverse relationship between genetic differentiation and genetic diversity, highlighting a long-term risk of deliberate isolation of G. pusilla populations based on protection of unique lineages. Instead we adopt a method for identifying genetic management units that takes into consideration both uniqueness and genetic variation. This produced a management framework to guide future translocation and re-introduction efforts for G. pusilla which contrasted to the framework based on a more traditional approach that may overlook important genetic variation in populations.
Data from: Conservation under uncertainty: optimal network protection strategies for worst-case disturbance events
1. Conservation goals are ideally set after a thorough understanding of potential threats; however, predicting future spatial patterns of threats, such as disturbance, remains challenging. Here, we develop a novel extension of network fortification-interdiction models (NFIM) that deals with uncertainty in future spatial patterns of disturbance by optimally selecting sites that will best mitigate a worst-case scenario for a given magnitude of disturbance. 2. This approach uses information on between-patch movement probabilities and patch-specific survival, which can be estimated from mark-recapture data, to optimize life expectancy. Optimization occurs in three interrelated stages: protection, followed by disturbance, and then assessment. 3. We applied the modeling approach to two mark-recapture data sets: Roseate terns Sterna dougallii in the northeastern United States and the Everglade snail kite Rostrhamus sociabilis plumbeus in Florida. We contrasted the results to a more conventional approach of protecting sites that maximize connectivity (by minimizing the distances among protected sites) and a bi-objective model that maximizes connectivity and the number of individuals under protection. 4. Protecting sites that best mitigate future worst-case disturbance scenarios consistently resulted in higher predicted life expectancies than protecting patches that minimize dispersal distance. Predicted life expectancy was similar between NFIM and the biobjective model for the small roseate tern network, yet, the NFIM predicted higher life expectancy than any of the scenarios in the bi-objective model in the snail kite network. 5. Synthesis and applications. This application of interdiction models prescribed a combination of patches for protection that results in the least possible decrease in life expectancy. Our analyses of the snail kite and roseate tern networks suggest that managing to protect these prescribed patches by the network fortification interdiction model (i.e. protecting against the worst-case disturbance scenario) is more beneficial than managing patches that minimize dispersal distance or maximize the number of individuals under protection if the conservation goal is to ensure the long term persistence of a species.
Data from: Study on the foraging behaviour of the European nightjar Caprimulgus europaeus reveals the need for a change in conservation strategy in Belgium
Effective nature conservation requires coherent actions based on the best available evidence concerning protected species. Recent studies have suggested that European nightjars Caprimulgus europaeus forage outside their recognized breeding habitats, yet, for Flanders (northern Belgium) information on nightjar foraging behaviour and key foraging habitats is lacking. To assess whether the foraging ecology of nightjars in Flanders is similar to that observed in other parts of Europe, we studied the crepuscular behaviour of this species in Bosland (northeastern Flanders) during a five-year radio telemetry study. Tracking of 48 individuals within a coniferous forest was standardized and home ranges were calculated using a kernel density estimator (fixed kernel). Habitat use was investigated by comparing kernel placement to available habitat. Average maximal foraging distance was 2603 ± 1094 m and home ranges extended up to 691 ha. We identified the key foraging habitats to be extensively-cultivated grasslands and recreational areas, areas that were previously assumed unsuitable for Belgian nightjars. Our results indicate the importance of foraging sites outside the breeding territory, confirming the findings of previous studies performed elsewhere in Europe. Incorporating our findings into future conservation plans could, therefore, lead to improved efficiency of EU conservation measures, designed for the protection of this bird species in Flanders.
Data from: Evaluating conservation and fisheries management strategies by linking spatial prioritisation software and ecosystem and fisheries modelling tools
1. Well-designed marine protected area (MPA) networks can deliver a range of ecological, economic and social benefits, and so a great deal of research has focused on developing spatial conservation prioritization tools to help identify important areas. 2. However, whilst these software tools are designed to identify MPA networks that both represent biodiversity and minimize impacts on stakeholders, they do not consider complex ecological processes. Thus, it is difficult to determine the impacts that proposed MPAs could have on marine ecosystem health, fisheries and fisheries sustainability. 3. Using the eastern English Channel as a case study, this paper explores an approach to address these issues by identifying a series of MPA networks using the Marxan and Marxan with Zones conservation planning software and linking them with a spatially explicit ecosystem model developed in Ecopath with Ecosim. We then use these to investigate potential trade-offs associated with adopting different MPA management strategies. 4. Limited-take MPAs, which restrict the use of some fishing gears, could have positive benefits for conservation and fisheries in the eastern English Channel, even though they generally receive far less attention in research on MPA network design. 5. Our findings, however, also clearly indicate that no-take MPAs should form an integral component of proposed MPA networks in the eastern English Channel, as they not only result in substantial increases in ecosystem biomass, fisheries catches and the biomass of commercially valuable target species, but are fundamental to maintaining the sustainability of the fisheries. 6. Synthesis and applications. Using the existing software tools Marxan with Zones and Ecopath with Ecosim in combination provides a powerful policy-screening approach. This could help inform marine spatial planning by identifying potential conflicts and by designing new regulations that better balance conservation objectives and stakeholder interests. In addition, it highlights that appropriate combinations of no-take and limited-take marine protected areas might be the most effective when making trade-offs between long-term ecological benefits and short-term political acceptability.
Fig. 3 in Towards Target 1 of the Global Strategy for Plant Conservation: A working list of all known plant species - Progress and prospects
Fig. 3. Proportions of listed and unlisted species in the different distribution patterns. Numbers of listed species derived from online working lists; estimates of species numbers in families without working lists estimated from Stevens (2006).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.