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55 results for “Blackwater”
Figs. 32–34. Trap efficiency. 32 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 32–34. Trap efficiency. 32) Quantity. Light-colored bars represent realized number of scarabaeoids taken in each trap expressed as a mean percentage for the bait type and preservative compared to the expected catch (= the mean percentage of all traps with that bait type and preservative (100%)). Dark-colored bars represent realized number of scarabaeoids taken in each trap expressed as a mean percentage for bait type only compared to the expected catch (the mean percentage of all traps with that bait type (100%)) if all variables between traps were equal. Nearly all of the traps performed well with the exceptions of traps 3 and 15 (dung) and 19 and 20 (carrion); 33) Species richness. Light-colored bars represent realized number of scarabaeoid species taken in each trap expressed as a mean percentage for the bait type and preservative compared to the expected catch. Dark-colored bars represent realized number of species taken in each trap expressed as a mean percentage for bait type only compared to the expected catch if all variables between traps were equal. Nearly all of the traps performed equally well; 34) Richness of only the "common" scarabaeoid species. Light-colored bars represent realized number of "common species" (those in excess of 0.005% of the total number of individuals) taken in each trap expressed as a mean percentage for the bait type and preservative compared to the expected catch. Dark-colored bars represent realized number of "common species" taken in each trap expressed as a mean percentage for only the bait type compared to the expected catch if all variables between traps were equal. Nearly all of the traps performed equally well in capturing the "common species".
Figs. 47–52. Reserva Ducke dung beetles. 47 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 47–52. Reserva Ducke dung beetles. 47) Dichotomius boreus. Photograph by Trond Larsen; 48) Dichotomius mamillatus. Photograph by Trond Larsen; 49) Uroxys pygmaeus. Photograph by Trond Larsen; 50) Coprophanaeus lancifer. Photograph by Trond Larsen; 51) Oxysternon conspicillatum. Photograph by Doug Emlen and Mark Rowland; 52) Phanaeus chalcomelas. Photograph by Trond Larsen. All images used by permission.
Figs. 30–31 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 30–31. Increase by week in number of scarabaeoid species collected in 30) dung- and 31) carrion-baited pitfall traps with chloral hydrate (red line) or picric acid (blue line) solutions.
Figs. 28–29 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 28–29. Species accumulation curves for scarabaeoids in dung- (blue line) and carrion-baited (red line) pitfall traps at Reserva Ducke from September 1977 to October 1978. 28) Increase by week in number of species collected. The last new species to enter a dung trap was in week 48, and the last new species to enter a carrion trap was week 53; 29) Percentage increase by week in number of species collected. At week 16 (27 December), less than 80% of the species ultimately collected had been taken.
Figs. 26–27 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 26–27. Number of scarabaeoid species collected per week at Reserva Ducke from September 1977 to October 1978 in 26) dung-baited and 27) carrion-baited pitfall traps with chloral hydrate (red line) or picric acid (blue line) solutions.
Figs. 22–23 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 22–23. Number of scarabaeoid species collected in dung- and carrion-baited traps at Reserva Ducke from September 1977 to October 1978. 22) Total number of scarabaeoid species per week in all traps; 23) Mean number of species in all traps per month (red line) and mean monthly precipitation (blue line).
Fig. 21 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 21. Number of individuals per week in carrion-baited traps containing chloral hydrate (red line) or picric acid
Fig. 19 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 19. Number of scarabaeoids per week in ten traps baited with dung (blue line) and ten traps baited with carrion
Fig. 18 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 18. Total number of scarabaeoids in all traps by week (solid red line), mean number of individuals per trap by month (bars), and mean monthly precipitation (dashed blue line) at Reserva Ducke from September 1977 to October 1978.
Fig. 20 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 20. Number of individuals per week in dung-baited traps containing chloral hydrate (red line) or picric acid
Figs. 24–25 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 24–25. Weekly scarabaeoid species captures in dung- (blue line) and carrion-baited (red line) pitfall traps at Reserva Ducke from September 1977 to October 1978. 24) Percentage of all taxa collected per week. Note that only in weeks 30 and 31 (4 and 11 April) were slightly more than 50% of the species taken; 25) Number of species per week.
Fig. 17 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 17. Diagram of the trap layout along existing trails at Reserva Ducke, Brazil. Traps are 50 m apart.
Fig. 16 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Fig. 16. Special box designed to carry bait vials. The hinged cover kept the vials from falling out as well as for personal protection from exploding caps. Photograph by BCR, August 1978.
Figs. 14–15. Trap design. 14 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 14–15. Trap design. 14) Completed trap with rain cover in position; 15) Close-up showing attachment of bait vial inside lip of collecting bottle.
Figs. 4–7. Study area. 4 in The Dung- and Carrion-Feeding Scarabs (Coleoptera: Scarabaeoidea) of an Amazonian Blackwater Rainforest: Results of a Continuous, 56-Week, Baited-PitfallTrap Study
Figs. 4–7. Study area. 4) Entry road into Reserva Ducke, September 1978. Photograph by BCR; 5) Forest trail (slope) at Reserva Ducke with author near summit of hill, March 1978. Photograph by N. D. Penny; 6) Forest trail (no slope) at Reserva Ducke, August 1978. Photograph by BCR; 7) Forest at Reserva Ducke showing palm understory, August 1978. Photograph by BCR.
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.
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