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190 results for “Carrion”
Fig. 8 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 8. The "meeting of the waters" at Manaus where the dark Rio Negro meets the tan Rio Solimões (Amazon). The waters of the two rivers run side by side for several kilometers after their meeting without mixing because they differ in density, temperature, and speed. Photograph by BCR, August 1977.
Figs. 9–10 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 9–10. Weather data at Reserva Ducke from September 1977 to October 1978. 9) Weekly (line) and monthly
Figs. 2–3. Study area. 2 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 2–3. Study area. 2) Reserva Ducke (arrow) in 1984 surrounded by rainforest. Image courtesy of the Land Processes Distributed Active Archive Center (LP DAAC), USGS/EROS, Sioux Falls, SD; 3) Reserva Ducke 28 years later, shown as a remnant square patch of forest on the northeast edge of the city of Manaus in an otherwise cutover landscape. Image ã 2012 Google, Imagery ã2012 NASA, TerraMetrics.
Figs. 11–13. Trap design. 11 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 11–13. Trap design. 11) Pitfall trap components: PVC pipe in the ground, collecting bottle with bait vial attached just inside of opening, soil cover, rain cover; 12) Collecting bottle placed inside of PVC pipe so that the lip of the bottle is flush with the surface of the ground; 13) Soil cover placed over lip of collecting bottle.
Fig. 1 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 1. South America. Arrow points to location of Reserva Ducke, just to the north of the confluence of the Rio Negro and Rio Solimões in Amazonas, Brazil.
Ant body size mediates functional performance and species interactions in carrion decomposer communities
<p>Growing concern over rapid species declines and extinctions has led to considerable interest in the role of biodiversity for maintaining ecological processes. However, the loss of particular species has more pronounced effects on ecosystem services than others, highlighting the importance of key functional species traits and their relationships to ecosystem functioning. Human induced disturbances, such as species invasions, land use changes or abiotic changes, appear to disproportionally impact larger species rather than smaller ones. The loss of large-bodied species in the community diminishes key ecosystem services like seed dispersal, pest control, pollination and decomposition.</p> <p>Here we use carrion, a nutrient-rich ephemeral resource, to test the hypotheses that ants positively affect decomposition rates and that their role in the necrophilous community – as predator or decomposer – is mediated by body size. We further investigate the relative contribution of maggots vs. ants to biomass decomposition.</p> <p>Our results show that ants contributed positively to the decomposition process. Moreover, decomposition was shaped by an intricate interplay between competition and predation among the guild of decomposer insects. As predicted, larger ants show a double action in increasing decomposition rate and predating on maggots, while small ants are rather inefficient decomposers and did not act as predators on other decomposer species.</p> <p>Our study shows that differentiating key taxonomic groups in function of their body size is key to untangle the diversity and directions of the various roles they play within complex ecological processes.</p>
Complete mitochondrial genome of the forensically important carrion beetle, Necrodes nigricornis (Coleoptera: Silphidae)
<p>To enrich the genomic data pools of the family Silphidae for subsequent mitogenome-based large-scale phylogenetic study and development of a diverse type of molecular marker (e.g., species identification by restriction fragment length polymorphism and loop-mediated isothermal amplification), which have considerable forensic importance, we sequenced the complete mitogenome of the <em>N. nigricornis</em> for the first time. This sequence was analyzed for mitogenome characteristics, along with a brief comparison to other familial species, and used for phylogenetic analysis within the family Silphidae.</p>
Recovering predators link aquatic and terrestrial ecosystems: River otters subsidize coyotes with carrion (Video 1)
<p>This dataset includes a high-quality version of Video 1 from <em>Recovering predators link aquatic and terrestrial ecosystems: River otters subsidize coyotes with carrion</em> (<a href="https://doi.org/10.1002/ece3.11444" target="_blank" rel="noopener">https://doi.org/10.1002/ece3.11444</a>).</p>
FIGURE 1 in Rove beetles collected with carrion traps (Coleoptera: Staphylinidae) in Quercus forest of Cerro de García, Jalisco and Quercus, Quercus-pine, and pine forests in other jurisdictions of Mexico
FIGURE 1. Richness of rove beetles collected with carrion traps in Quercus, Quercus-pine and pine forests in Mexico.
FIGURES 41–42 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 41–42. Distribution of (41) Phosphuga atrata atrata and (42) Silpha obscura obscura in Turkey.
FIGURES 13–16 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 13–16. Habitus in dorsal view of (13) Phosphuga atrata atrata, (14) Silpha obscura obscura, (15) S. obscura orientalis and (16) S. olivieri (scales: 5 mm).
FIGURES 21–24 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 21–24. Habitus in dorsal view of (21) Oiceoptoma thoracicum, (22) Nicrophorus sepultor, (23) N. vespillo and (24) N. vespilloides (scales: 5 mm).
FIGURES 5–8 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 5–8. Habitus in dorsal view of (5) Nicrophorus investigator, (6) N. nigricornis, (7) N. vestigator and (8) Ablattaria arenaria (scales: 5 mm).
FIGURES 9–12 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 9–12. Habitus in dorsal view of (9) Ablattaria laevigata, (10) Aclypea undata, (11) Dendroxena quadrimaculata and (12) Necrodes littoralis (scales: 5 mm).
FIGURES 1–4 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 1–4. Habitus in dorsal view of (1) Nicrophorus antennatus, (2) N. germanicus, (3) N. humator and (4) N. interruptus (scales: 10 mm).
FIGURES 17–20 in The large carrion beetles (Coleoptera: Silphidae) of Turkey: a review with a new species record
FIGURES 17–20. Habitus in dorsal view of (17) Silpha tristis, (18) Thanatophilus rugosus, (19) T. sinuatus and (20) T. terminatus (scales: 5 mm).
FIGURE 5. Marcelonemobius mutum n in Orthoptera (Ensifera & Caelifera) collected using carrion traps in a Quercus forest in Jalisco, Mexico, with description of a new genus and a new species (Trigonidiidae: Nemobiinae)
FIGURE 5. Marcelonemobius mutum n. sp. (female). A. Habitus lateral and dorsal. B. Head, pronotum, mesonotum and metanotum in dorsal view. C–D. Terminalia in lateral and ventral view respectively.
FIGURE 3 in Orthoptera (Ensifera & Caelifera) collected using carrion traps in a Quercus forest in Jalisco, Mexico, with description of a new genus and a new species (Trigonidiidae: Nemobiinae)
FIGURE 3. Morphospecies collected in carrion tramps. A. Anargyrtes sp. B. Pristoceuthophilus sp. C. Stenopelmatus sp. 1. D. Stenopelmatus sp. 2. E. Anurogryllus forcipatus. F. Hoplosphyrum aztecum. G. Sphenarium borrei. H. Pedies sp. I. Philocleon nigrovittatus.
Data from: Great spotted cuckoo nestlings have no antipredatory effect on magpie or carrion crow host nests in southern Spain
Host defences against cuckoo parasitism and cuckoo trickeries to overcome them are a classic example of antagonistic coevolution. Recently it has been reported that this relationship may turn to be mutualistic in the case of the carrion crow (Corvus corone) and its brood parasite, the great spotted cuckoo (Clamator glandarius), given that experimentally and naturally parasitized nests were depredated at a lower rate than non-parasitized nests. This result was interpreted as a consequence of the antipredatory properties of a fetid cloacal secretion produced by cuckoo nestlings, which presumably deters predators from parasitized host nests. This potential defensive mechanism would therefore explain the detected higher fledgling success of parasitized nests during breeding seasons with high predation risk. Here, in a different study population, we explored the expected benefits in terms of reduced nest predation in naturally and experimentally parasitized nests of two different host species, carrion crows and magpies (Pica pica). During the incubation phase non-parasitized nests were depredated more frequently than parasitized nests. However, during the nestling phase, parasitized nests were not depredated at a lower rate than non-parasitized nests, neither in magpie nor in carrion crow nests, and experimental translocation of great spotted cuckoo hatchlings did not reveal causal effects between parasitism state and predation rate of host nests. Therefore, our results do not fit expectations and, thus, do not support the fascinating possibility that great spotted cuckoo nestlings could have an antipredatory effect for host nestlings, at least in our study area. We also discuss different possibilities that may conciliate these with previous results, but also several alternative explanations, including the lack of generalizability of the previously documented mutualistic association.
Data from: Top carnivore decline has cascading effects on scavengers and carrion persistence
Top carnivores have suffered widespread global declines, with well-documented effects on mesopredators and herbivores. We know less about how carnivores affect ecosystems through scavenging. Tasmania's top carnivore, the Tasmanian devil (Sarcophilus harrisii), has suffered severe disease-induced population declines, providing a natural experiment on the role of scavenging in structuring communities. Using remote cameras and experimentally-placed carcasses, we show that mesopredators consume more carrion in areas where devils have declined. Carcass consumption by the two native mesopredators was best predicted by exploitation competition for carrion, whereas consumption by the invasive mesopredator, the feral cat (Felis catus), was better predicted by the landscape-level abundance of devils, suggesting a relaxed landscape of fear where devils are suppressed. Reduced discovery of carcasses by devils was balanced by increased discovery by mesopredators. Nonetheless, carcasses persisted ~2.6-fold longer where devils have declined, highlighting their importance for rapid carrion removal. The major beneficiary of increased carrion availability was the forest raven (Corvus tasmanicus). Population trends of ravens increased 2.2-fold from 1998-2017, the period of devil decline, but this increase occurred Tasmania-wide, making the cause unclear. This case study provides a little-studied potential mechanism for mesopredator release, with broad relevance to the vast areas of the world that have suffered carnivore declines.
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Allen Brain Atlas
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