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14 results for “flagship species”
FIGURE 5 in Importance of protection strategies in the conservation of the flagship species "dourado" Salminus brasiliensis (Characiformes: Bryconidae)
FIGURE 5 | ANCOVA interaction effects for the relationship between gonad weight (gw) and body weight (bw) for female (A) and male (D) Salminus brasiliensis. Mean gonadal index (GI) for female (B) and male (E) S. brasiliensis by river (HA – highly altered; MA – moderately altered; LA – less altered). GI for female (C) and male (F) S. brasiliensis over time. GI was measured as the relationship between ln(gw)/ln(bw^1.25) for females and ln(gw)/ln(bw^1.07) for males.
FIGURE 4 in Importance of protection strategies in the conservation of the flagship species "dourado" Salminus brasiliensis (Characiformes: Bryconidae)
FIGURE 4 | ANCOVA interaction effects for the relationship between body weight (bw) and body length (Ls) for female (A) and male (D) Salminus brasiliensis. Mean condition factor (K) for female (B) and male (E) S. brasiliensis by river (HA – highly altered; MA – moderately altered; LA – less altered). Condition factor (K) for female (C) and male (F) S. brasiliensis over time. K was measured as the relationship between ln(bw)/ln(Ls^3.13) for females and ln(bw)/ln(Ls^3.10) for males.
FIGURE 3 in Importance of protection strategies in the conservation of the flagship species "dourado" Salminus brasiliensis (Characiformes: Bryconidae)
FIGURE 3 | Cross-correlations between the temporal abundance series of the less altered (LA) and moderately altered (MA) rivers (LA:MA) and the LA and HA rivers (LA:HA). As sampling was conducted quarterly. A 0.25 lag is equal to three months. HA: Paraná River; MA: Baía River; LA: Ivinhema River). CCF = cross-correlation coefficient. After the prewhitening protocol correlations, <-0.27 and> 0.27 were considered significant (dashed line).
FIGURE 1 in Importance of protection strategies in the conservation of the flagship species "dourado" Salminus brasiliensis (Characiformes: Bryconidae)
FIGURE 1 | Protected areas and sampling stations in the upper Paraná River floodplain. Paraná River (highly altered – HA), Baía River (moderately altered – MA), and Ivinhema River (less altered – LA).
FIGURE 2 in Importance of protection strategies in the conservation of the flagship species "dourado" Salminus brasiliensis (Characiformes: Bryconidae)
FIGURE 2 | Salminus brasiliensis in three rivers of the upper Paraná floodplain. A. Temporal trend in abundance – dashed line indicates the year in which the Porto Primavera Dam began to operate; B. Relationship between water level and abundance (CPUE). The less altered (LA) river has a weaker relationship between water level and young-of-the-year abundance. HA – highly altered (Paraná River), MA – moderately altered (Baía River), and less altered – LA (Ivinhema River); C. Probability of occurrence of the species (All) and young-ofthe-year (YOY).
Data from: Conservation genetics of Australasian sailfin lizards: flagship species threatened by coastal development and insufficient protected area coverage
Despite rampant coastal development throughout Southeast Asia and the Pacific, studies of conservation genetics and ecology of vulnerable, coastal species are rare. Large bodied vertebrates with highly specialized habitat requirements may be at particular risk of extinction due to habitat degradation and fragmentation, especially if these habitats are naturally patchily distributed, marginal, or otherwise geographically limited, or associated in space with high human population densities or heavy anthropogenic disturbance. Particularly telling examples of these conservation challenges are large Australasian reptiles with obligate habitat requirements for lowland, coastal and mangrove forests. Plagued by habitat destruction due to high human densities along coastlines, sprawling rural development, and rapidly developing estuarine fisheries industry, coastal forest reptiles are experiencing rapid declines. And yet studies of population biology, genetics, and habitat requirements of species depending on these environments are few. We undertook the present study in order to take a multifaceted approach to understanding a poignant conservation problem. We identify significant evolutionary units for conservation in large-bodied Sailfin Lizards (genus Hydrosaurus), model suitable habitat in the Philippines from extensive occurrence data and evaluate the efficacy of the current protected area network, and identify the source of hydrosaurs in the illegal pet trade. We determine that the extent of the species' habitat coincident with protected areas is low. Our forensic evaluation of the illegal pet trade in the Philippines determines the existence of a natural population that is at risk of systematic exploitation by traders. Together, this integrative study characterizes a conservation urgency of particular significance: the genetically distinct Sailfin lizards of the Bicol faunal region, with suitable habitat virtually unprotected, and clear evidence of heavy exploitation for illegal trade. To the best of our knowledge, our study is the first conservation genetic study to evaluate the potential effectiveness of the protected landscape coverage in the Philippines, a Megadiverse nation and Biodiversity Hotspot.
FIGURE 3. Potential euglenophyte flagship species. A. Colacium epiphyticum. B. Trachelomonas hemisphaerica. C. Colacium minimum. D. Trachelomonas argentinensis. E. Trachelomonas magdaleniana. F. Phacus plicatus. G in African Trachelomonas saccasii found in a European mesotrophic pond (Czech Republic). Implication for euglenoid biogeography and recommendations for euglenoid flagship species
FIGURE 3. Potential euglenophyte flagship species. A. Colacium epiphyticum. B. Trachelomonas hemisphaerica. C. Colacium minimum. D. Trachelomonas argentinensis. E. Trachelomonas magdaleniana. F. Phacus plicatus. G. Lepocinclis crassicollis. Size ratio is not retained.
FIGURE 2 in African Trachelomonas saccasii found in a European mesotrophic pond (Czech Republic). Implication for euglenoid biogeography and recommendations for euglenoid flagship species
FIGURE 2. Visualization of Trachelomonas saccasii lorica using scanning electron microscopy. A. Lorica contain irregularly distributed pores. B. Detailed view of the lorica surface structure with several granules (indicated by arrows). C. Detailed view of the apical pore with a thickened edge (indicated by arrow).
FIGURE 1 in African Trachelomonas saccasii found in a European mesotrophic pond (Czech Republic). Implication for euglenoid biogeography and recommendations for euglenoid flagship species
FIGURE 1. Trachelomonas saccasii observed by light optical microscopy. A, B. General view of the lorica with thickening around the apical pore (marked with arrows) and several chloroplasts (some marked "Ch"). C. Lorica surface structure with irregularly distributed pores.
Data from: Conservation genetics of Australasian sailfin lizards: flagship species threatened by coastal development and insufficient protected area coverage
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Data from: Biodiversity gains from efficient use of private sponsorship for flagship species conservation
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Data from: The leafy seadragon, Phycodurus eques, a flagship species with low but structured genetic variability
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Supplementary Data: A synthesis of global vertebrate attractiveness reveals hotspots of untapped flagship species
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Do all roads lead to resistance? State road density is the main impediment to gene flow in a flagship species inhabiting a severely fragmented anthropogenic landscape
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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