Find research datasets worth reusing

opencc-by-4.0Mar 2022View details →

Assessing the Impact of Pest Monitoring Traps on Bombus griseocollis (Hymenoptera: Apidae) Colony Growth and Development

Insect traps use visual and olfactory cues to attract target pests; however, they vary in their specificity and often unintentionally capture non-target beneficial insects (bycatch), including Bombus. Concerns have been expressed that bycatch may contribute to Bombus mortality and the consequential loss of pollination services. Here, we quantified the impact of trap captures on Bombus griseocollis colony growth and development by evaluating the following four treatments: colonies paired with traps, colonies paired with traps and pheromone lures, traps and pheromone lures (but no colonies), and colonies with no trap and no lure. Trap contents were collected biweekly to determine B. griseocollis capture rates. Colony growth and development data were collected weekly by weighing colonies and recording foraging activity. Based on microsatellite polymerase chain reaction (PCR) amplification, three B. griseocollis were collected from released colonies, while the remaining five were residents within the environment. Given the low number of B. griseocollis workers collected, any differences in colony weight change and active foraging were likely not a result of pest monitoring trap captures. However, trap captures could have a greater impact by interfering with functional diversity, colony establishment, and pollination services, emphasizing the need for additional research. Building on this research will provide a more comprehensive view of the impact of pest monitoring traps on Bombus populations, which could minimize risk to pollinator populations and pollination services.

opencc-zeroSep 2022View details →

Plant phenology, aphid colony growth, and honeydew deposition data

Changing phenological cues can lead to trophic mismatch for plants and herbivores, and this often shifts herbivore feeding to plant stages of lower quality. Temperature can also mediate how herbivores respond to plant quality, leading to temperature-by-phenology interactions. We examined how both temperature and host plant phenology impact aphid abundance and their mutualism with ants. Our study system was composed of aphids (Aphis asclepiadis) that colonize flowering stalks of the host plant, Ligusticum porteri. Abundance of this aphid species is dependent on mutualism with several ant species. To understand how host plant phenology and temperature affect aphid abundance, we experimentally accelerated snow melt date by two weeks, which correspondingly advanced flowering phenology. Then, we factorially combined this phenology treatment with open top warming chambers surrounding aphid colonies. We tracked aphid colony growth and interactions with ants, and results showed the greatest colony growth at cooler, ambient temperatures on host plants without accelerated phenology. These colonies also showed the highest levels of honeydew deposition relative to their overall size. Our findings show that trophic mismatch decreases aphid abundance, and changes to the ant-aphid mutualism exacerbate this effect.

opencc-zeroJun 2024View details →

Data from: Live-cell analysis of IMPDH protein levels during yeast colony growth provides insights into the regulation of GTP synthesis

Here we present real-time, live-cell analysis of accumulation of the Imd2 isoform of IMPDH in Saccharomyces cervisiae yeast cells forming a monolayer colony in a microfluidic device over a 50-hour time course. We observe two distinct phases of increased Imd2 accumulation: a guanine-insensitive phase early in outgrowth and a guanine-sensitive phase later, when cells become crowded. We show that the IMPDH inhibitor mycophenolic acid enhances both phases of increase. Deletion of a transcription attenuator upstream of the mRNA start site that decreases Imd2 mRNA synthesis in the presence of high GTP increases the baseline level of Imd2 protein ten-fold and abolishes guanine-sensitive but not guanine-insensitive induction. Our results suggest that at least two mechanisms of yeast Imd2 regulation exist, the known GTP-dependent attenuation of RNA polymerase II elongation and a GTP concentration-independent pathway that may be controlled by cell growth state.

opencc-zeroDec 2011View details →

FIG. 4. — Avicenia kocyani n in A new Silurian Avicenia (Tabulata): taxonomy, growth pattern, and colony integration

FIG. 4. — Avicenia kocyani n. sp., paratypes: A, B, specimen (ZPAL T. 26 AVI-2) from Jastrzębia Góra; probably latest Llandovery- Wenlockian; C, D, specimen (ZPAL T. 26 AVI-4) from Kołobrzeg; probably latest Llandovery-Wenlockian; A, C, longitudinal sections; B, D, transverse sections. Scale bars: 500 μm.

opencc-zeroDec 2011View details →

FIG. 3 in A new Silurian Avicenia (Tabulata): taxonomy, growth pattern, and colony integration

FIG. 3. — Longitudinal section of Avicenia kocyani n. sp. (holotype; ZPAL T. 26 AVI-1) from the erratic boulder of Międzyzdroje, probably latest Llandovery-Wenlockian: high density zones in corallites (dashed line) do not correspond to high density zones in diaphragm distribution in coenenchymal tubes (continuous line). Scale bar: 500 μm.

opencc-zeroDec 2011View details →

FIG. 2 in A new Silurian Avicenia (Tabulata): taxonomy, growth pattern, and colony integration

FIG. 2. — Transverse section of Avicenia kocyani n. sp. (holotype; ZPAL T. 26 AVI-1) from the erratic boulder of Międzyzdroje, probably latest Llandovery-Wenlockian: A, B, general view (notice the dimetrism of corallites and differences in coenenchymal tissue distribution); C, a detail showing the connecting pore, polarized light. Scale bars: 500 μm.

opencc-by-4.0Dec 2017View details →

Figure 2 in Response of Little Fire Ant (Hymenoptera: Formicidae) Colonies to Insect Growth Regulators and Hydramethylnon

Figure 2. Number* of sexual brood and abnormal alates produced within Wasmannia auropunctata colonies after exposure to baits containing IGRs.

opencc-by-4.0Dec 2017View details →

Figure 1 in Response of Little Fire Ant (Hymenoptera: Formicidae) Colonies to Insect Growth Regulators and Hydramethylnon

Figure 1. Mean worker mortality* (%) in Wasmannia auropunctata colonies after IGR-bait exposure over time.

publicSep 2022View details →

Plant phenology, aphid colony growth, and honeydew deposition data

Open the record for dataset details and reuse information.

publicJun 2024View details →

Data from: Live-cell analysis of IMPDH protein levels during yeast colony growth provides insights into the regulation of GTP synthesis

Open the record for dataset details and reuse information.

publicJul 2024View details →

A generalized numerical model for clonal growth in scleractinian coral colonies

Open the record for dataset details and reuse information.

edi40/100

Supplemental data Effects of imidacloprid exposure on honey bee colony growth and activity

To better understand how exposure to a low (5 ppb) concentration of imidacloprid affects honey bee colonies we conducted five field experiments involving a total of 54 bee colonies. In each experiment, bee colonies in one treatment group were fed sugar syrup adulterated with 5ppb imidacloprid over six weeks, and colonies in the other group were fed unadulturated sugar syrup over the same time period. Treatments were intended to simulate nectar collection by the colonies. No commercial agriculture existed within 10 km of the sites. We collected data from hive assessments, including adult bee mass and mass of food resources, and the total surface area of capped brood; and we collected data from sensors, including continuous hive weight, internal temperature and, for two years of the study, internal CO2 concentration. We measured Varroa mite fall before and after treatment each year of the study, and for 3 years of the study we measured the dry weight of newly-emerged adult bees.

openCC (other)Sep 2021View details →

dryad36/100

Algal growth, bumblebee colony and individual development, bee behavior and yield of oilseed rape under a trophic cascade and extreme weather

Trophic cascades in the aquatic environment constitute important mechanisms for improving water quality. However, how the presence or non-presence of these trophic cascades may affect interactions across the aquatic-terrestrial interface remains poorly investigated. Pollinators such as bees may be especially vulnerable to changes in water resource quality induced by trophic cascades. Understanding how aquatic trophic cascades affect bees and pollination becomes even more pressing under ongoing climate change due to increased physiological demands for water under extreme weather events.In a novel field experiment combining terrestrial and aquatic mesocosms, we aimed to test how changes in water quality induced by an aquatic trophic cascade affected foraging and growth of bumblebee colonies as well as foraging of solitary bees. While we expected fish predation to reduce top-down control of zooplankton on phytoplankton and thereby, indirectly, induce increased growth of toxic cyanobacteria, we instead found the trophic cascade to induce the formation of algal surface mats that bumblebees used to access water under a severe heat wave and drought. This access to water was associated with higher bumblebee colony reproductive success, growth and weight compared to control colonies with no trophic cascade induced (and hence no algal surface mats). We also found marginal but non-significant effects on oilseed rape yield, but surprisingly with higher yields in the control treatment where bumblebees could not access water.Our results provide new insights on how aquatic trophic cascades can lead to unpredicted ecological interactions across the aquatic-terrestrial interface facilitated by climate change. Our study highlights the importance of water for the fitness of terrestrial ecosystem service providers under altered environmental conditions.

opencc-zeroFeb 2022View details →

Figure 9 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 9. Plumage development of a Black Skimmer (Rynchops niger) chick from Praia do Totelão, Pantanal, Mato Grosso, Brazil. (A) Camouflaged down plumage (Day 3); (B) appearance of dorsal pinfeathers and primaries (Day 7); (C) dorsal pinfeathers opened (Day 11); (D) primaries opened (Day 15); (E) completely developed immature plumage (Day 21). Photos: CO. BRA/INAU.

Figure 8 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 8. Mensural data of the single Black Skimmer (Rynchops niger) chick surveyed in August-September 2015 that reached the fledging phase at Praia do Totelão, Pantanal, Mato Grosso, Brazil (n = 1; accuracy = ± 0.01 cm). (A) Development of bill length (BL), bill width (BW), and tarsus length (TS) as a function of age (days). (B) Development of total body length (TL) and wing length (WL) as a function of age (days).

Figure 5 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 5. Developmental stages of a Black Skimmer (Rynchops niger) clutch (nest 4S) at Praia doTotelão, Pantanal, Mato Grosso, Brazil, from July to September 2015, with three fertilized eggs revealed by thermal imaging (right); with maximum (Max), minimum (Min), and mean temperature (Ds) inside the nest (white outline). Stages: (A) Day 8, (B) Day 14, and (C) Day 18 (two days before hatching). Note the well-camouflaged eggs inside the nest depression exhibiting some variation in shell pattern (left), with narrow corrugations caused by adults' bills when relocating the eggs. Photos by CO. BRA/INAU.

Figure 4 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 4. Mean surface temperatures (Te) of 25 eggs (n = 7 nests) of the Black Skimmer (Rynchops niger) at Praia do Totelão, Pantanal, Mato Grosso, Brazil, during incubation from July to September 2015; not all eggs reached hatching. Confidence intervals are indicated by bars; the regression line (dotted) represents a significant increase between Day 1 and hatching (R² = 0.098, p <0.01, LME).

Figure 3 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 3. Thermal images of a Black Skimmer (Rynchops niger) nest (12N, white rectangles) at Praia do Totelão, Pantanal, Mato Grosso, Brazil, taken on the same day (6 September 2015) in the early (05:59 h, A) and late morning (11.45 h, B), showing the mean (Ds), minimum, and maximum nest temperature, surface ground temperature (crosses), and egg surface temperature (within rectangles). Scale on right: color scale associated with the respective temperatures. With a special optical filter water drops were visualized (Blue and red circles outside the nest and next to the three clutch contours) which were taken to the nest by both adults. Note in Fig. B the sand surface temperature of 53.7℃. Photos by CO.BRA/INAU.

Figure 2 in Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

Figure 2. Egg mass development in three surveyed Black Skimmer (Rynchops niger) nests (n = 7 eggs, 84 measurements) until hatching at Praia do Totelão, Pantanal, Mato Grosso, Brazil, throughout the incubation period in July- September 2015. Note that the number of eggs decreased to three toward the end of incubation due to predation. The regression line indicates a negative trend (R² = 0.043, p <0.05, LME) of egg mass over incubation time.