Find research datasets worth reusing

Fig. 3 in Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females

Fig. 3. Percentage of female and male Spodoptera frugiperda that landed on different concentrations of the extract of the sex pheromone septum. No moths landed on the control (methanol). Bars of the same color with different letters indicate that there is a significant difference, n = 20 (χ2; P <0.05).

Fig. 2 in Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females

Fig. 2. Percentage of female and male Spodoptera frugiperda that landed on the female glandular extract. Bars of different colors with different letters for the same extract concentrations indicate a significant difference, n = 20 (χ2; P <0.05).

Fig. 5 in Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females

Fig. 5. Genital structure of female Spodoptera frugiperda. (A) Confocal image of the bursa copulatrix, frontal view. View of spermatophores within the corpus bursae (BC = bursa copulatrix; SI = signum; CB = corpus bursae; BA = bursae appendix; OS = ostium (exit); ESD = exit to a seminal duct; AA = anterior apophysis; AN = antrum; BD = bursal duct). (B) Micrograph of bursa copulatrix in zenith angle, observing the length and width measurements of the structure (length = 5.38 mm; width = 2.066 mm). (C) Stereoscopic image presenting a frontal view of the genital structure (S = spermatophores). (D) Micrograph of the terminal abdominal (PVL = postvaginal lamella; AVL = antevaginal lamella; OS = ostium; AP = anal papilla).

Fig. 1 in Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females

Fig. 1. (A) Virgin female abdomen 3 to 5 d old Spodoptera frugiperda females, black circle is location of sex pheromone gland; (B) sex pheromone-producing gland in female S. frugiperda.

Fig. 4 in Spodoptera frugiperda (Lepidoptera: Noctuidae) Females Can Detect the Sex Pheromone Emitted by Conspecific Females

Fig. 4. Male (white bars) and female (gray bars) Spodoptera frugiperda caught by traps with sex pheromone septa (Q1 <Median <Q3). Different letters for Trap 1, Trap 2, Trap 3, or Trap 4 indicate significant differences (Mann-Whitney Test U; n = 34; P <0.05).

opencc-by-4.0May 2021View details →

Fig. 1 in Evaluation of pheromone traps and lures for trapping male Agriotes sputator (Coleoptera: Elateridae) beetles in eastern Canada

Fig. 1. Vernon beetle trap (A) and Vernon pitfall trap (B) designed for collecting Agriotes obscurus, Agriotes lineatus, and Agriotes sputator click beetles, shown installed for optimum capture in the field.

opencc-by-4.0May 2021View details →

Fig. 2 in Evaluation of pheromone traps and lures for trapping male Agriotes sputator (Coleoptera: Elateridae) beetles in eastern Canada

Fig. 2. Capture of Agriotes sputator using Vernon pitfall traps baited with commercial and experimental lures throughout the swarming season in 3 fields in Prince Edward Island, Canada. Note the close correspondence between the 2 lure types in 2017, but not in 2016. Primed lures were placed at room temperature 3 wk before deployment, whereas non-primed lures were kept at −20 °C until deployment

opencc-by-4.0Aug 2021View details →

Data from: Integrating pheromonal and spatial information in the amygdalo-hippocampal network. Villafranca-Faus et al. 2021

The local field potential (LFP) of the dorsal hippocampus (CA1) and cortical amygdala (PMCo) of mice, under head-fix recording and inmersed on a virtual environtmernt. Paper Abstract:  Vomeronasal information is critical in mice for territorial behavior. Consequently, learning the territorial spatial structure should incorporate the vomeronasal signals indicating individual identity into the hippocampal cognitive map. In this work we show in mice that navigating a virtual environment induces synchronic activity, with causality in both directionalities, between the vomeronasal amygdala and the dorsal CA1 of the hippocampus in the theta frequency range. The detection of urine stimuli induces synaptic plasticity in the vomeronasal pathway and the dorsal hippocampus, even in animals with experimentally induced anosmia. In the dorsal hippocampus, this plasticity is associated with the overexpression of pAKT and pGSK3β. An amygdalo-entorhino-hippocampal circuit likely underlies this effect of pheromonal information on hippocampal learning. This circuit likely constitutes the neural substrate of territorial behavior in mice, and it allows the integration of social and spatial information.

opencc-by-4.0Dec 2008View details →

Figs. 5-7 in A pair of basi-abdominal sex pheromone glands in the male of some burrower bugs (Hemiptera: Heteroptera: Cydnidae)

Figs. 5-7. Paraethus capicola (Westwood, 1837) (Geotomini), cuticular structure of the male basi-abdominal glands. 5 – general view of the glands; scale bar: 0.5 mm. 6 – detail of the tripartite ductules of the secretory units; scale bar: 0.02 mm. 7 – detail of the intima at the level of the efferent canal connecting the reservoir to the external opening; scale bar: 0.02 mm. Abbreviations: cc – conducting canal; ci – cone-shaped invagination; du – ductule; ef – efferent canal; lu – lumen; os – ostiole; r – reservoir; rc – receiving canal; sa – saccule.

opencc-by-4.0Dec 2008View details →

Figs. 1-4 in A pair of basi-abdominal sex pheromone glands in the male of some burrower bugs (Hemiptera: Heteroptera: Cydnidae)

Figs. 1-4. Paraethus capicola (Westwood, 1837) (Geotomini), location of the male basi-abdominal glands. 1 – male adult in lateral view showing the site of the external opening of the glands and surrounding structures: stridulatory apparatus (plectrum and stridulitrum), anterior dorso-abdominal glands and metathoracic glands; scale bar: 5 mm. 2 – detail of the abdomen and location of the PBA gland ostiole; scale bar: 2 mm. 3 – internal view of the abdominal tergum, showing place of PBA glands and surrounding structures; scale bar: 2 mm. 4 – detail of the external opening on the pleural area in front of the sternite 3 and laterotergite 3, internal view; scale bar: 0.2 mm. Abbreviations: ap – apodeme; DAg – anterior dorso-abdominal gland; Lt – laterotergite; Mt – mediotergite; MTg – metathoracic gland; PBAg – pleuro basi-abdominal gland (ostiole); os – ostiole; pl – plectrum; S – sternite; sp – spiracle; se – setae; st – stridulitrum; tr – trichobothries; v – vestiges of the median and posterior dorso-abdominal glands.

Figure 4 in Exploiting assembly pheromone for the control of ixodid ticks

Figure 4 Comparison of the per cent death of adult ticks after 1 hour in Assembly pheromonedeltamethrin and deltamethrin treatment.

Figure 3 in Exploiting assembly pheromone for the control of ixodid ticks

Figure 3 Comparison of the per cent death of ixodid tick larvae after 1 hour in Assembly pheromonedeltamethrin and deltamethrin treatment.

Figure 2 in Exploiting assembly pheromone for the control of ixodid ticks

Figure 2 Behavioural responses of ixodid tick larvae to assembly pheromone: A – Curled leg appearance ofHyalomma marginatumlarvae; B

Figure 1 in Exploiting assembly pheromone for the control of ixodid ticks

Figure 1 Effect of assembly pheromone: A – Clustering ofRhipicephalus sanguineuslarvae on assembly pheromone impregnated filter paper disc; B –Arrestment of Rhipicephalus sanguineus larvae on assembly pheromone impregnated filter paper disc; C – Behaviour of the adults of Rhipicephalus sanguineus in assembly pheromone-deltamethrin trial; D – Behaviour of the adults ofRhipicephalus sanguineusin positive control; E – Behaviour of the adults ofRhipicephalus sanguineusin negative control; F – Response of the adults ofRhipicephalus sanguineus to natural assembly pheromone.

opencc-zeroMar 2023View details →

dryad40/100

Tsetse flies (Glossina m. morsitans) choose birthing sites guided by substrate cues with no evidence for a role of pheromones

Tsetse flies significantly impact public health and economic development in sub-Saharan African countries by transmitting the fatal disease African trypanosomiasis. Unusually, instead of laying eggs, tsetse birth a single larva that immediately burrows into the soil to pupate. Where the female chooses to larviposit is therefore crucial for offspring survival. Previous laboratory studies suggested that a putative larval pheromone, n-pentadecane, attracts gravid female Glossina morsitans morsitans to appropriate larviposition sites. However, this attraction could not be reproduced in field experiments. Here, we resolve this disparity by designing naturalistic laboratory experiments that closely mimic the physical characteristics found in the wild. We show that gravid G. m. morsitans were neither attracted to the putative pheromone nor, interestingly, to pupae placed in the soil. In contrast, females appear to choose larviposition sites based on environmental substrate cues. We conclude that, among the many cues that likely contribute to larviposition choice in nature, substrate features are a main determinant, while we failed to find evidence of a role of pheromones.

Figure 3 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam

Figure 3. Capture rates (mean ± SE) of beetle caught in double-vaned bucket. UV = trap equipped with UV LED diodes, RL = trap with reduced release rate of oryctalure, SL = trap with standard release rate of oryctalure. Comparisons of mean trap capture between traps with and without UV light and between traps with different oryctalure release rates are shown at right. Bars with different letters indicate significantly different means (UV light: t-test, Lure: ANOVA, Tukey's HSD).

Figure 4 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam

Figure 4. Capture rate as a function of oryctalure release rate for traps without (A) and with (B) ultraviolet light emitting diodes. UV = trap equipped with UV LED diodes, RL = trap with reduced release rate of oryctalure, SL = trap with standard release rate of oryctalure. Lines are ordinary least-squares fits. The equation for traps without UV LEDs is y = 0.0059 + 0.0015x; slope is not significantly different from zero (P = 0.118). The equation for traps with UV LEDs is y = 0.0182 + 0.0070x; slope is significantly different from zero (P = 0.005).

Figure 2. Reduced release rate pheromone dispenser. A 2 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam

Figure 2. Reduced release rate pheromone dispenser. A 2 mm hole in the tops of the Eppendorf centrifuge tube allows a slow release of the attractant oryctalure. The bottle shown acts as a rain and wind shield. This entire release device is placed within a bucket trap for field deployment.

Figure 1 in Effects of Ultraviolet Light and Pheromone Release Rate in Trapping Coconut Rhinoceros Beetles, Oryctes rhinoceros (Coleoptera: Scarabaeidae), on Guam

Figure 1. Trap line locations, from north to south, were located at the University of Guam Agricultural Experiment Station in Yigo, the GICC Golf Course in Dededo, the Temple Baptist Church in Chalan Pago, the Leo Palace Golf Course in Yona, the Windward Hills Golf Course in Yona, and the Chargalauf Farm in Inarajan. An on-line interactive version of this map is available at https://github.com/ aubreymoore/CRB- trapimprovement/ blob/master/map.geojson.