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164 results for “Species coexistence”
Figure 3 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 3 Spaniomolgusglobus sp. n., female. a Habitus lateral b Urosome dorsal c Antenna d Antennule e Maxillule f Maxilla g Mandible h Maxilliped. Scale bars: 300 µm (a); 100 µm (b); 50 µm (c–h).
Figure 2 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 2 Stylophorapistillata, coral skeletons and corallite structures (SEM). a, b Specimen SA13-12 c, d Morphotype subseriata, specimen SA13-25 e, f Morphotype danae SA13-31 g, h Morphotype mordax, specimen SA13-61. Scale bars: 20 mm (a, c, e, g); 0.5 mm (b, d, f, h).
Figure 1 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 1 a–c Sampling localities and study area in the Red Sea (Saudi Arabia). The red circles indicate sampling localities of the indicated samples of Stylophorapistillata (see Table 1).
Figure 5 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 5 Spaniomolgusdentatus sp. n., female. a Habitus dorsal b Urosome dorsal (Leg 6 arrowed) c Antenna d Maxilliped e Leg 4. Scale bars: 300 µm (a); 100 µm (b); 50 µm (c–e).
Figure 7 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 7 Spaniomolgusacutus sp. n., female. a Habitus dorsal b Urosome dorsal c Antenna d Maxilliped e Leg 4 f Genital area. Scale bars: 300 µm (a); 100 µm (b); 50 µm (c–f).
Figure 8 from: Conradi M, Bandera E, Mudrova SV, Ivanenko VN (2018) Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophora pistillata (Scleractinia). ZooKeys 791: 71-95. https://doi.org/10.3897/zookeys.791.28775
Figure 8 Spaniomolgusstylophorus sp. n., female. a Habitus dorsal b Urosome dorsal c Antenna d Maxilliped e Leg 4. Scale bars: 300 µm (a); 100 µm (b); 50 µm(c–e).
Data from: Reproductive interference hampers species coexistence despite conspecific sperm precedence
<p>Negative interspecific mating interactions, known as reproductive interference, can hamper species coexistence in a local patch and promote niche partitioning or geographical segregation of closely related species. Conspecific sperm precedence (CSP), which occurs when females that have mated with both conspecific and heterospecific males preferentially use conspecific sperm for fertilization, might contribute to species coexistence by mitigating the costs of interspecific mating and hybridization. We discussed whether two species exhibiting CSP can coexist in a local environment in the presence of reproductive interference. First, using a behaviourally explicit mathematical model, we demonstrated that two species characterized by negative mating interactions are unlikely to coexist because the costs of reproductive interference, such as loss of mating opportunity with conspecific partners, are inevitably incurred when individuals of both species are present. Second, we experimentally examined differences in mating activity and preference in two <i>Harmonia</i> ladybird species known to exhibit CSP. According to the developed mathematical model of reproductive interference, these behavioural differences should lead to local extinction of <i>H. yedoensis</i> because of reproductive interference by <i>H. axyridis</i>. This prediction is consistent with field observations that <i>H. axyridis</i> uses various food sources and habitats whereas <i>H. yedoensis</i> is confined to a less preferred prey item and a pine tree habitat. Finally, by a comparative approach, we showed that niche partitioning or parapatric distribution, but not sympatric coexistence in the same habitat, is maintained between species with CSP belonging to a wide range of taxa, including vertebrates and invertebrates living in aquatic or terrestrial environments. Taken together, we suggest that reproductive interference can destabilize local coexistence even in closely related species that exhibit CSP.</p>
Interplay of above- and belowground resource limitations: a competition-facilitation shift maintains species coexistence
<p>Forest ecosystems are commonly characterised by a hierarchy of resources. During a disturbance of a forest community, increased light availability in the understorey can support competitive interactions at the expense of facilitation. This may overwhelm the role of belowground resource heterogeneity in maintaining species coexistence and so result in biotic homogenisation of a site. We re-surveyed species composition while estimating interspecific interactions along a microtopographic (moisture) gradient of a temperate swamp forest after increasing the availability of light into the undergrowth. We measured temporal changes in species diversity, compositional dissimilarity measures and functional traits, while belowground resource heterogeneity remained unchanged over time. To explain observed changes in terms of prevailing interspecific interactions, we evaluated temporal changes in the competition-facilitation balance. The productivity of understorey vegetation increased strongly over the five years of the study. This was accompanied by an increase in species diversity and the maintenance of compositional dissimilarity. The relative importance of competitive and facilitative interactions along the microtopographic gradient did not change over time. Rather than an overall biotic homogenisation of a site, we observed a spread of resource acquisitive species within the resource-rich sites and of stress-tolerant species within the resource-limited sites. We have shown that the temporary increase in productivity did not mitigate the effects of belowground resource heterogeneity on plant species turnover, which is likely maintained by contrasting interspecific interactions prevalent in different parts of the resource gradient. This suggests contrasting community assembly processes maintain diversity and productivity even in a local community.</p>
Species differences in phenology shape coexistence
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Data from: Environmental variability counteracts priority effects to facilitate species coexistence: evidence from nectar microbes
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Data from: Variation in species light acquisition traits under fluctuating light regimes: implications for non‐equilibrium coexistence
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Data from: Predator co-evolution and prey trait variability determine species coexistence
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Data from: Effects of light and topography on regeneration and coexistence of evergreen and deciduous tree species in a Chinese subtropical forest
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Data from: Coevolution of competing Callosobruchus species does not stabilize coexistence
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Data from: Grazing decreases N partitioning among coexisting plant species
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Morphological traits influence food choice by coexisting New World warbler (Parulidae) species
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Interplay of above- and belowground resource limitations: a competition-facilitation shift maintains species coexistence
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Seed dispersal by wind decreases when plants are water-stressed, potentially counteracting species coexistence and niche evolution
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Data from: Energetic constraints on species coexistence in birds
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Data from: Reproductive interference hampers species coexistence despite conspecific sperm precedence
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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