Characterization of the thermal tolerances of forest ants of New England
... ‘‘c’’ consisted of four species: three Myrmicinae species and a single Formicinae species that shared a thermal tolerance of 38°C. Group ‘‘d’’ consisted of the Formicinae species Lasius nearcticus, which had a thermal tolerance of 36°C, with no variation among individuals. Due to observed difference ...
... ‘‘c’’ consisted of four species: three Myrmicinae species and a single Formicinae species that shared a thermal tolerance of 38°C. Group ‘‘d’’ consisted of the Formicinae species Lasius nearcticus, which had a thermal tolerance of 36°C, with no variation among individuals. Due to observed difference ...
Patterns of ant species richness along elevational gradients in an
... We sampled ants with pitfall traps constructed from 120 mL plastic cups (6 cm diameter) embedded so that the lip of the cup was flush with the soil surface. Cups were partially filled with a 50 : 50 mixture of propylene glycol and water. After 48 h we retrieved the traps. The contents of the traps w ...
... We sampled ants with pitfall traps constructed from 120 mL plastic cups (6 cm diameter) embedded so that the lip of the cup was flush with the soil surface. Cups were partially filled with a 50 : 50 mixture of propylene glycol and water. After 48 h we retrieved the traps. The contents of the traps w ...
The scope of the problem - Assets
... colony survival. For the plant this means that one of its seeds is lost. However, seeds found by ants may subsequently be lost by them and germinate in the vicinity of an ants’ nest where herbivore pressure might be reduced and nutrient supply enhanced. The critical question is what proportion of se ...
... colony survival. For the plant this means that one of its seeds is lost. However, seeds found by ants may subsequently be lost by them and germinate in the vicinity of an ants’ nest where herbivore pressure might be reduced and nutrient supply enhanced. The critical question is what proportion of se ...
Effects of neighboring organisms on the growth of three intertidal
... acrylic sheet the same size as the panel. This was laid over the panel to fix the exact positions of the colonies during observations. Panels were put in a tray containing seawater while the colonies were traced under a stereomicroscope. The panels were observed 5 times during the study at about 2 w ...
... acrylic sheet the same size as the panel. This was laid over the panel to fix the exact positions of the colonies during observations. Panels were put in a tray containing seawater while the colonies were traced under a stereomicroscope. The panels were observed 5 times during the study at about 2 w ...
Complex interactions on fig trees: ants capturing parasitic wasps as
... observation of a large sample of figs for each tree, while in the third species, a small tree, figs are on branches generally situated at eye-level. In addition to their respective pollinators, these fig species have two other kinds of associates: parasitic wasps (one common species per fig species) ...
... observation of a large sample of figs for each tree, while in the third species, a small tree, figs are on branches generally situated at eye-level. In addition to their respective pollinators, these fig species have two other kinds of associates: parasitic wasps (one common species per fig species) ...
density-mediated, context-dependent consumer–resource
... (EFN) plants are often mutualistic, as EFN resources attract and reward ants which protect plants from herbivory. Yet, ants also commonly exploit floral resources, leading to antagonistic consumer–resource interactions by disrupting pollination and plant reproduction. EFN resources associated with m ...
... (EFN) plants are often mutualistic, as EFN resources attract and reward ants which protect plants from herbivory. Yet, ants also commonly exploit floral resources, leading to antagonistic consumer–resource interactions by disrupting pollination and plant reproduction. EFN resources associated with m ...
A newly discovered method of reproduction in
... the colony (Fig. 2b). All polyps eventually disappear from the subterminal region (Fig. 2c) and the coenenchyme is resorbed in a transverse band until the daughter colony is connected to the parent colony only by the hair-like axial core (Fig. 2d). At this stage no living tissue connects the parent ...
... the colony (Fig. 2b). All polyps eventually disappear from the subterminal region (Fig. 2c) and the coenenchyme is resorbed in a transverse band until the daughter colony is connected to the parent colony only by the hair-like axial core (Fig. 2d). At this stage no living tissue connects the parent ...
Energy, Density, and Constraints to Species Richness: Ant
... was inspected piece by piece for nests (ant colonies of !100 workers often nest in hollow twigs, acorns, and between leaves; Wilson 1959; Herbers 1986; Byrne 1994; Kaspari 1996). Litter was inspected over a white sample tray to catch and to locate stray ants. Litter nests were bagged for later proce ...
... was inspected piece by piece for nests (ant colonies of !100 workers often nest in hollow twigs, acorns, and between leaves; Wilson 1959; Herbers 1986; Byrne 1994; Kaspari 1996). Litter was inspected over a white sample tray to catch and to locate stray ants. Litter nests were bagged for later proce ...
Ornitología Colombiana 13 - Asociación Colombiana de Ornitología
... The high rate of nest predation in tropical birds results in strong selection pressure. The Rufous-naped Wren (Campylorhynchus rufinucha) nests in Bullhorn trees (Acacia) in the Mesoamerican dry forest. It has been proposed that bullhorns and their aggressive ants (Pseudomyrmex spp.) help to prevent ...
... The high rate of nest predation in tropical birds results in strong selection pressure. The Rufous-naped Wren (Campylorhynchus rufinucha) nests in Bullhorn trees (Acacia) in the Mesoamerican dry forest. It has been proposed that bullhorns and their aggressive ants (Pseudomyrmex spp.) help to prevent ...
Tradeoffs, competition, and coexistence in eastern deciduous forest
... To determine the relative ability of each species to discover food resources, we positioned six baits in a circle (a discovery array) with a diameter of approximately 60 cm and baits spaced 30 cm from one another. Bait cards were not considered independent; rather, each array served as an experiment ...
... To determine the relative ability of each species to discover food resources, we positioned six baits in a circle (a discovery array) with a diameter of approximately 60 cm and baits spaced 30 cm from one another. Bait cards were not considered independent; rather, each array served as an experiment ...
Ant-mediated seed dispersal does not facilitate niche expansion
... Giladi (2004) translocated Hexastylis arifolia, an evergreen woodland myrmecochore native to the south-eastern United States, from upland deciduous forests into floodplain habitats where it was otherwise absent. The transplant populations exhibited per capita growth rates (survival, growth, reproduct ...
... Giladi (2004) translocated Hexastylis arifolia, an evergreen woodland myrmecochore native to the south-eastern United States, from upland deciduous forests into floodplain habitats where it was otherwise absent. The transplant populations exhibited per capita growth rates (survival, growth, reproduct ...
Specializations of birds that attend army ant raids
... bird flocks. Ecological factors such as latitude and elevation (e.g., different Holdridge life zones) influence the array of bird species that attend raids at a given site (Zimmer and Isler, 2003; Brumfield et al., 2007; O’Donnell et al., 2010). With enough observation effort, long lists of bird specie ...
... bird flocks. Ecological factors such as latitude and elevation (e.g., different Holdridge life zones) influence the array of bird species that attend raids at a given site (Zimmer and Isler, 2003; Brumfield et al., 2007; O’Donnell et al., 2010). With enough observation effort, long lists of bird specie ...
Get PDF - Asian Myrmecology
... Proximity to tree trunks did not affect ant diversity in the plot because data analysis showed no differences in species number of ants between the area close to tree trunks and the area 2.5 m from tree trunks in both seasons (dry season: t-test, t14 = -1.89, P = 0.07, wet season: t-test, t14 = 0.44 ...
... Proximity to tree trunks did not affect ant diversity in the plot because data analysis showed no differences in species number of ants between the area close to tree trunks and the area 2.5 m from tree trunks in both seasons (dry season: t-test, t14 = -1.89, P = 0.07, wet season: t-test, t14 = 0.44 ...
(Pilosa, Myrmecophagidae) REGARDING THE TERMITE DEFENSE
... those with only a chemical defense mechanism and a soft nest (Nasutitermes). Termite individuals have low nutritional value, except for the reproductive caste, which are few in number in termite nests during much of the year (REDFORD; DOREA, 1984). But, the soldiers of Cornitermes have more fat than ...
... those with only a chemical defense mechanism and a soft nest (Nasutitermes). Termite individuals have low nutritional value, except for the reproductive caste, which are few in number in termite nests during much of the year (REDFORD; DOREA, 1984). But, the soldiers of Cornitermes have more fat than ...
Interactions between extrafloral nectaries, aphids and ants: are there
... rather short period for the study of aphid colony growth. Ac. pisum colonies on ant-attended plants, however, generally disappeared within that period. Therefore, we stopped the experiment at that time because we wanted to study different effects of the presence of EFN on the two aphid species, rath ...
... rather short period for the study of aphid colony growth. Ac. pisum colonies on ant-attended plants, however, generally disappeared within that period. Therefore, we stopped the experiment at that time because we wanted to study different effects of the presence of EFN on the two aphid species, rath ...
Monomorium kugleri n. sp., a new fossil ant species (Hymenoptera
... high, with widely-rounded dorsum. Postpetiole lower than petiole, subglobular. Middle and hind tibiae with one simple spur. Body completely smooth, without rugosity, only posterolateral part of postpetiole coarsely punctated. Integument does not seem shiny, possibly with dense microsculpture but the ...
... high, with widely-rounded dorsum. Postpetiole lower than petiole, subglobular. Middle and hind tibiae with one simple spur. Body completely smooth, without rugosity, only posterolateral part of postpetiole coarsely punctated. Integument does not seem shiny, possibly with dense microsculpture but the ...
Assessing ecological specialization of an ant–seed dispersal
... moved the diaspores beyond of the vertical projection of the reproductive stalk on the ground (range 25–90 cm). (2) In situ elaiosome consumers are ants that behave predominantly as elaiosome predators (i.e., when the percentage of in situ elaiosome consumption was 75% of its total interaction reco ...
... moved the diaspores beyond of the vertical projection of the reproductive stalk on the ground (range 25–90 cm). (2) In situ elaiosome consumers are ants that behave predominantly as elaiosome predators (i.e., when the percentage of in situ elaiosome consumption was 75% of its total interaction reco ...
Frequent fuel-reduction burning: the role of logs and associated leaf
... invertebrate fauna. The aim of this study was to determine whether ants were using unburned leaf litter microhabitats associated with logs as a refuge after fire. The study was carried out in Bulls Ground State Forest, New South Wales, Australia, where experimentally burned and unburned sites had pr ...
... invertebrate fauna. The aim of this study was to determine whether ants were using unburned leaf litter microhabitats associated with logs as a refuge after fire. The study was carried out in Bulls Ground State Forest, New South Wales, Australia, where experimentally burned and unburned sites had pr ...
Using Historical and Experimental Data to Reveal
... activity and density because a change in either activity or density will affect the rate at which ants fall into the traps [34]. Despite this drawback, pitfall traps are commonly used in studies such as ours because they are easy to standardize and have little impact on soil, litter, or ant populati ...
... activity and density because a change in either activity or density will affect the rate at which ants fall into the traps [34]. Despite this drawback, pitfall traps are commonly used in studies such as ours because they are easy to standardize and have little impact on soil, litter, or ant populati ...
Indirect effects of phorid ¯y parasitoids on the mechanisms of
... between ®re ant and phorid ¯y species, a series of observational and experimental baiting trials were conducted. Resource retrieval rates were measured as the decrease in biomass of baits due to foraging ants. The baits used were Oscar Mayer Wieners (pork and turkey), which were sliced into 3.0 g s ...
... between ®re ant and phorid ¯y species, a series of observational and experimental baiting trials were conducted. Resource retrieval rates were measured as the decrease in biomass of baits due to foraging ants. The baits used were Oscar Mayer Wieners (pork and turkey), which were sliced into 3.0 g s ...
Disturbance, colonial fragmentation, and size
... single polyps or groups of connected polyps located ...
... single polyps or groups of connected polyps located ...
Respiration, worker body size, tempo and activity in
... movement, high activity, alertness, carbohydrate-based chemical defences and aggressiveness, again suggesting a positive relationship between tempo, respiration and resource use. Inactivity is the rule for the average ant worker, which is not moving 70–75% of the time (Hölldobler & Wilson, 1990). Ac ...
... movement, high activity, alertness, carbohydrate-based chemical defences and aggressiveness, again suggesting a positive relationship between tempo, respiration and resource use. Inactivity is the rule for the average ant worker, which is not moving 70–75% of the time (Hölldobler & Wilson, 1990). Ac ...
Influence of driver ant swarm raids on earthworm prey densities in
... sampled nine 50 9 50 cm2 plots for earthworms: the first three about 100 cm ahead of the swarm (original earthworm density), the second three plots about 100 cm behind the swarm front (the positions of these plots were at first only indicated with small flags; sampling was carried out only after all ...
... sampled nine 50 9 50 cm2 plots for earthworms: the first three about 100 cm ahead of the swarm (original earthworm density), the second three plots about 100 cm behind the swarm front (the positions of these plots were at first only indicated with small flags; sampling was carried out only after all ...
Tree heterogeneity, resource availability, and larger scale processes
... species interactions (Chase 1996; Perfecto & Vandermeer 1996). Similarly, variation in habitat conditions will affect species distribution and interactions (Levins ...
... species interactions (Chase 1996; Perfecto & Vandermeer 1996). Similarly, variation in habitat conditions will affect species distribution and interactions (Levins ...
Odontoponera denticulata
... study by Kalshoven (1981) might be O. denticulata, since their morphological characters resemble those of O. denticulata. According to Bolton (1994) only one species in the genus Odontoponera is recognized and this view is widely accepted. Seiki Yamane (personal communication, October 11, 2005), how ...
... study by Kalshoven (1981) might be O. denticulata, since their morphological characters resemble those of O. denticulata. According to Bolton (1994) only one species in the genus Odontoponera is recognized and this view is widely accepted. Seiki Yamane (personal communication, October 11, 2005), how ...
Green-head ant
The green-head ant (Rhytidoponera metallica), often simply referred to as the green ant, or sometimes the green-headed ant or in Queensland, the metallic pony ant, is a metallic-green coloured ant, generally 5–7 millimetres (0.20–0.28 in) in length, that can be found throughout Australia, particularly in urban and suburban areas. It is often confused - verbally, not visually - with the weaver ant of northern Queensland, Australia, where it is also referred to as the green ant.Green-head queens are semi-claustral, and forage for food themselves during the early stages of a colony. Queens are difficult to distinguish from workers, they generally have the same build, but are slightly larger with a more pronounced thorax and gaster. Workers forage alone and are omnivorous, however a majority of their diet consists of other insects. Colonies can range from small colonies, to large ones that can be around a metre deep into the ground and contain around a hundred workers.