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FIGURE 2 in New taxa and notes on bark and bush crickets (Orthoptera, Grylloidea, Gryllidae Landrevinae and Podoscirtinae) from Sabah

FIGURE 2. Duolandrevus (Bejorama) lambir Gorochov, 2017 ♂ calling song: oscillograms showing three echemes (A) and one echeme (B); spectrogram of the same echeme (C); power spectra of a syllable (D) where the grey line represents the power [dB] (axis name and scale in grey) and the black solid peak represents the relative amplitude (axis name in black).

FIGURE 3 in New taxa and notes on bark and bush crickets (Orthoptera, Grylloidea, Gryllidae Landrevinae and Podoscirtinae) from Sabah

FIGURE 3. Duolandrevus (Duolandrevus) nobilis sp. nov. ♂ in its natural environment at Mount Silam (MNHN-EOENSIF11147).

FIGURE 1 in New taxa and notes on bark and bush crickets (Orthoptera, Grylloidea, Gryllidae Landrevinae and Podoscirtinae) from Sabah

FIGURE 1. Duolandrevus (Bejorama) lambir Gorochov, 2017 ♂ habitus in dorsal view (A); genitalia in dorsal (B) and ventral (C) views. Scale bars: 5 mm (A); 0.1 mm (B, C).

FIGURE 18 in New taxa and notes on bark and bush crickets (Orthoptera, Grylloidea, Gryllidae Landrevinae and Podoscirtinae) from Sabah

FIGURE 18. Varitrella (Cantotrella) tabin sp. nov. ♂: genitalia in dorsal (A), lateral (B) and posterior (C) views; spermatophore in lateral view (D). al = two latero-apical lobular part at the posterior end of pseudepiphallus; ds = dorso-anterior pseudepiphallic spine; lo = lateral lobe at the posterior end of ectophallic fold. Scale bar: 1 mm.

FIGURE 10 in New taxa and notes on bark and bush crickets (Orthoptera, Grylloidea, Gryllidae Landrevinae and Podoscirtinae) from Sabah

FIGURE 10. Odontogryllodes spinifer sp. nov. ♀ (SDK.19.100): living habitus at Sepilok (A); habitus in lateral view (B); FW in lateral view (C); ovipositor in lateral view (D). The blue arrow in (D) refers to the characteristic denticulate lateral edges of the distal part of upper valves. Scale bars: 5 mm (B), 1 mm (C, D).

opencc-zeroAug 2022View details →

dryad32/100

Data from: Rocky Mountain forests are poised to recover following bark beetle outbreaks, but with altered composition

<ol> <li>Amplified by warming temperatures and drought, recent outbreaks of native bark beetles (Curculionidae: Scolytinae) have caused extensive tree mortality throughout Europe and North America. Despite their ubiquitous nature and important effects on ecosystems, forest recovery following such disturbances is poorly understood, particularly across regions with varying abiotic conditions and outbreak effects.</li> <li>To better understand post-outbreak recovery across a topographically complex region, we synthesized data from 16 field studies spanning subalpine forests in the Southern Rocky Mountains, USA. From 1997 to 2019, these forests were heavily affected by outbreaks of three native bark beetle species (Dendroctonus ponderosae, Dendroctonus rufipennis, and Dryocoetes confusus). We compared pre- and post-outbreak forest conditions and developed region-wide predictive maps of post-outbreak (1) live basal areas, (2) juvenile densities, and (3) height growth rates for the most abundant tree species – aspen (Populus tremuloides), Engelmann spruce (Picea engelmannii), lodgepole pine (Pinus contorta), and subalpine fir (Abies lasiocarpa).</li> <li>Beetle-caused tree mortality reduced the average diameter of live trees by 28.4% (5.6 cm), and species dominance was altered on 27.8% of field plots with shifts away from pine and spruce. However, most plots (82.1%) are likely to recover towards pre-outbreak tree densities without any additional regeneration. Region-wide maps indicated that fir and aspen, non-host species for bark beetle species with the most severe effects (i.e., Dendroctonus spp.), will benefit from outbreaks through greater post-outbreak basal areas and higher juvenile densities. After accounting for individual size, height growth rates for all conifer species were more rapid in sites with low winter precipitation and high outbreak severity.</li> <li> Synthesis: In subalpine forests of the US Rocky Mountains, recent outbreaks of three bark beetle species have driven reductions in tree sizes and shifts in species composition. While eventual recovery of the pre-outbreak forest structure is likely in most places, shifts in species composition may persist for decades. Still, forest communities following bark beetle outbreaks are widely variable due to differences in pre-outbreak conditions, outbreak severity, and abiotic gradients. This regional variability has critical implications for ecosystem services and susceptibility to future disturbances.</li> </ol>

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Number of gallery arms for oviposition by the tree-killing bark beetle Polygraphus proximus (Coleoptera: Curculionidae: Scolytinae)

Polygraphus proximus Blandford (Coleoptera: Curculionidae: Scolytinae) is a non-aggressive monogynous bark beetle. It has caused mass mortality in fir (Abies spp.) forests in the past decade. Although gallery structures made by polygynous beetles may influence their reproductive success, the gallery structure and the number of eggs laid by the monogynous tree-killing bark beetle P. proximus have not been investigated in detail in the natural setting of their native range. We, therefore, investigated the length of mother galleries of P. proximus and the number of eggs oviposited by the beetles in relation to gallery systems with different numbers of arms in Japan. The number of eggs oviposited in two-armed galleries was significantly greater than that observed in one-armed galleries. Additionally, the length of one- or two-armed galleries with no oviposition was significantly shorter than that in galleries consisting of more than two arms. Our results suggest that the optimal number of arms in a gallery system (in terms of the number of eggs oviposited) was two.

opencc-zeroOct 2022View details →

opencc-by-4.0Mar 2014View details →

Supplementary material 1 from: Svenson G (2014) Revision of the Neotropical bark mantis genus Liturgusa Saussure, 1869 (Insecta, Mantodea, Liturgusini). ZooKeys 390: 1-214. https://doi.org/10.3897/zookeys.390.6661

Material examined: Explanation note: All specimens examined within this study are included to improve digital access to locality data, specimen identifications, and georeference information.

opencc-by-4.0Mar 2014View details →

Supplementary material 2 from: Svenson G (2014) Revision of the Neotropical bark mantis genus Liturgusa Saussure, 1869 (Insecta, Mantodea, Liturgusini). ZooKeys 390: 1-214. https://doi.org/10.3897/zookeys.390.6661

Specimen locality map: Explanation note: Specimens examined that either included GPS coordinates or were georeferenced are included and sorted by species group. Waypoint records include species locality data, type status, and museum code.

opencc-by-4.0Jul 2024View details →

Unveiling the Role of Acrocomia aculeata Palms in Savanna Hydrology: Insights from Bark Morphology and Stemflow Dynamics

In this study, we investigated stemflow in Acrocomia aculeata trees in an Amapá savanna, in an Amapá savanna, focusing on the influence of structural traits on stemflow volumes. Diameter at breast height, crown area and height of trees were determined. Bark hydrophobicity and texture were also investigated. During the sampling period, total precipitation was 1,744.3 mm, with stemflow accounting for 0.71% of this total. This value is lower than previously reported, highlighting the variability of stemflow across different environments and study conditions. We found significant diversity in stemflow volumes among the studied individuals, which were categorized into three classes: high (more than 0.18mm), medium (between 0.10-0.18mm) and low (less than 0.10mm). . Our analysis revealed a strong correlation between bark contact angle and stemflow volumes, indicating that surfaces with higher hydrophobicity favor greater water flow to the soil. This emphasizes the relevance of bark physical properties in regulating stemflow. Principal component analysis indicated that the combination of stemflow and bark contact angle, along with characteristics such as crown geometry and height, explains most of the variability in stemflow volumes. However, other morphological characteristics such as diameter at breast height and projected crown area showed no significant correlation with stemflow, suggesting bark morphology might play a more determining role in stemflow than initially thought. Significant structural differences in bark surfaces were observed through scanning electron microscopy and optical microscopy, indicating that bark texture, including the presence or absence of grooves and furrows, influences stemflow capacity. This study enhances our understanding of the complex interactions between palm tree morphological and dendrometric characteristics and stemflow, highlighting the importance of considering bark hydrophobicity and structural properties in forest hydrology studies. The results suggest the need to explore bark characteristics beyond its morphology to understand stemflow dynamics in savanna ecosystems.

opencc-by-4.0Jun 2018View details →

Dataset 2.2 Bark bug design for realization in organic materials

Dataset 2.2 of Bark bug design for realization in organic materials

opencc-by-2.0Dec 2019View details →

Structural and functional dynamics of soil microbes following bark beetle infestation

Provided are the bacterial and fungal phyloseq objects for Structural and functional dynamics of soil microbes following spruce beetle infestation". Authored by: Gordon Custer, Dr. Linda van Diepen, and Dr. William Stump. All of the University of Wyoming

FIGURES 80–85. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 80–85. G. splendidulus (80, 82, 84), N. lentus (81, 83, 85). 80, 81, apical portion of maxillary palp; 82, 83, apical portion of labial palp; 84, 85, apical portion of ligula.

FIGURES 1–12. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 1–12. G. splendidulus (1–3, 7–10), N. lentus (4–6, 11, 12), mature larva. 1–6, habitus in dorsal (1, 4), lateral (2, 5) and ventral (3, 6) aspect; 7–12, seta on pronotum (7), abdominal tergite I (8), abdominal tergite VIII (9), mid femur (10) and abdominal tergite II (11, 12).

FIGURES 19–29. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 19–29. G. splendidulus (19, 21, 23, 25, 28), N. lentus (20, 22, 24, 26, 27, 29), mature larva. 19, 20, head in frontal aspect; 21, 22, mouth parts in frontal aspect; 23, 24, apotome (Ap) and tentorial pits (Tp); 25, 26, tentorial pits; 27, microstructure of head; 28, 29, gular region. Abbreviations: Ap apotome, At antennae, Lp labial palps, Lt lateral tooth, Ma mala, Md mandibles, Mt median tooth, Na nasale, P posterior region of head, Pm maxillary palps, Pmt paramedian tooth.

FIGURES 30–39. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 30–39. G. splendidulus (30, 32, 36, 38), N. lentus (31, 33–35, 37, 39), mature larva. 30, 31, right antenna in dorsal aspect; 32, 33, terminal portion of antenna in dorsal aspect; 34, region of sensory appendage (Sa) of antennal article III; 35, apex of antennal article IV; 36, 37, labrum; 38, 39, epipharynx. Abbreviations: At antennae, Lt lateral tooth, Mt median tooth, Pmt paramedian tooth, S solenidia, Sa sensory appendage.

FIGURES 13–18. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 13–18. G. splendidulus (13, 15, 17), N. lentus (14, 16, 18), mature larva. 13–18, head in dorsal (13, 14), lateral (15, 16) and ventral (17, 18) aspect. Abbreviations: Ap apotome, E epicranial region of head, Es dorsal ecdysial lines, Gl gland, Na nasale, P posterior region of head, Tp tentorial pits.

FIGURES 64–71. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 64–71. G. splendidulus (64, 66, 68, 70), N. lentus (65, 67, 69, 71), mature larva. 64, 65, thorax, in lateral aspect; 66, 67, prosternum; 68, 69, abdominal tergites I and II; 70, 71, abdominal sternites I and II. Abbreviations: St sternite, Te tergite.

FIGURES 53–63. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 53–63. G. splendidulus (53, 54), N. lentus (55–63), mature larva. 53, 55, left foreleg and tarsungulus (54, 56); 57–60, ctenidium on right (57, 59) and left foretibia (58, 60); 61, tiny tooth at apex of foretibia; 62, 63, mid leg and terminal portion of tibia with tarsungulus (63). Abbreviations: Cb comb, Cx coxa, Fe femur, Tb tibia, Tr trochanter, Tu tarsungulus.

FIGURES 40–52. G in Re-descriptions of larvae of mature larvae of two predatory species of Nudobius and Gabrius associated with bark beetle galleries (Coleoptera: Staphylinidae)

FIGURES 40–52. G. splendidulus (40, 43–45, 49, 51), N. lentus (41–42A, 46–48, 50, 52), mature larva. 40, 41, left mandible in dorsal aspect; 42, 42A, tooth on inner edge of mandible; 43–48, left maxilla, total (43, 46), region of mala (44, 47), mala (45, 48); hypopharynx (49, 50), labium (51, 52). Abbreviations: Cd cardo, Lg ligula, Lp labial palps, Ma mala, Md mandibles, Pm maxillary palps, Pmnt prementum, S solenidia, Sa sensory appendage, Stp stipes.