Find research datasets worth reusing

opencc-by-4.0Apr 2021View details →

Figure 5 in Insectum non grata: the harlequin ladybird, Harmonia axyridis (Pallas, 1773) (Coleoptera, Coccinellidae) in Turkey

Figure 5. Seasonality of Harmonia axyridis in Turkey according to new records (93 records from 62 localities). 60 54

opencc-by-4.0Apr 2021View details →

Figure 3 in Insectum non grata: the harlequin ladybird, Harmonia axyridis (Pallas, 1773) (Coleoptera, Coccinellidae) in Turkey

Figure 3. Distribution of all models, nonstatistically significant models, and selected models in terms of the user's predefined criteria. Table 1. Performance statistics for the best models selected on the user's predefined criteria.

opencc-by-4.0May 2024View details →

Supporting dataset to "Understanding ladybird beetle diversity in native and hu-man-modified landscapes in the San Cristóbal Island, Gala-pagos Archipelago, Ecuador"

Supporting dataset to the paper Peñaherrera-Romero E, Guerrero-Campoverde A, Rueda-Rodríguez MP, Dávila-Játiva M, Die-Morejón D, Domínguez-Trujillo M, Guerrero-Molina T, Vélez-Darquea E, Cisneros-Heredia DF. (2024) Ladybird Beetle Diversity in Natural and Human-Modified Habitats in the San Cristóbal Island, Galapagos, Ecuador. Insects 15(9):725. <a href="https://doi.org/10.3390/insects15090725">https://doi.org/10.3390/insects15090725</a>

opencc-zeroJan 2024View details →

Linked collectors and determiners for: Belgian Coccinellidae - Ladybird beetles in Belgium.

Natural history specimen data linked to collectors and determiners held within, "Belgian Coccinellidae - Ladybird beetles in Belgium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/42319b8f-9b9d-448d-969f-656792a69176">https://bionomia.net/dataset/42319b8f-9b9d-448d-969f-656792a69176</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/42319b8f-9b9d-448d-969f-656792a69176">https://gbif.org/dataset/42319b8f-9b9d-448d-969f-656792a69176</a>. Formatted as a Frictionless Data package.

opencc-zeroJan 2024View details →

Linked collectors and determiners for: New host plant records for melon ladybird Chnootriba elaterii (Rossi) (Coleoptera: Coccinellidae) from India.

Natural history specimen data linked to collectors and determiners held within, "New host plant records for melon ladybird Chnootriba elaterii (Rossi) (Coleoptera: Coccinellidae) from India". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/efc218a1-bd8e-405d-8b63-3eddbc9fdce7">https://bionomia.net/dataset/efc218a1-bd8e-405d-8b63-3eddbc9fdce7</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/efc218a1-bd8e-405d-8b63-3eddbc9fdce7">https://gbif.org/dataset/efc218a1-bd8e-405d-8b63-3eddbc9fdce7</a>. Formatted as a Frictionless Data package.

opencc-zeroJan 2024View details →

Linked collectors and determiners for: A black sheep in Eresus (Araneae: Eresidae): taxonomic notes on the ladybird spiders of Iran and Turkey, with a new species.

Natural history specimen data linked to collectors and determiners held within, "A black sheep in Eresus (Araneae: Eresidae): taxonomic notes on the ladybird spiders of Iran and Turkey, with a new species". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c11c23ea-8b8c-461b-a6e3-b90052416577">https://bionomia.net/dataset/c11c23ea-8b8c-461b-a6e3-b90052416577</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c11c23ea-8b8c-461b-a6e3-b90052416577">https://gbif.org/dataset/c11c23ea-8b8c-461b-a6e3-b90052416577</a>. Formatted as a Frictionless Data package.

opencc-by-4.0Nov 2016View details →

Figures 1–4 in Enoclerus Gahan: predators of chemically protected ladybird beetles (Coleoptera: Cleridae and Coccinellidae)

Figures 1–4. Enoclerus species feeding on Coccinellidae. 1) Enoclerus ichneumoneus (Fabricius) feeding on Cycloneda munda (Say); 2) Enoclerus nigripes (Say) feeding on Psyllobora vigintimaculata Say; 3) Enoclerus spinolae (LeConte) feeding on Coccinella Linnaeus sp.; 4) Enoclerus moestus (Klug) feeding on unidentified ladybird beetle.

opencc-zeroApr 2021View details →

Data from: Direct and indirect effect of cannibalism and intraguild predation in the two sibling Harmonia ladybird beetles

In this study, we focused on the direct (i.e. predation) and indirect (i.e. potential threat from coexisting with a larger individual) effects of cannibalism and intraguild predation (IGP) during larval stages of two sibling ladybird beetles. These effects play an important role in the coexistence of the generalist–common Harmonia axyridis and specialist–rare H. yedoensis (Coleoptera: Coccinellidae). Direct predation effect of cannibalism and IGP were asymmetric in the two sibling ladybird beetles; the fourth instar larvae of H. axyridis were better intraguild predators than cannibals, while the reverse was true in the larvae of H. yedoensis. Neither cannibalism nor IGP significantly affected female body weight in either species. Larval H. axyridis surviving exposure to cannibalism or IGP had a reduced number of ovarioles as adults, whereas adult H. yedoensis ovarioles were not affected. For the indirect effects, longer developmental times in males and females and a lower total number of ovarioles in females were detected in H. axyridis. In H. yedoensis, shorter developmental time of males, lighter adult weight and fewer total ovarioles in females were observed. Olfactometer choice experiments clarified that the fourth instar larvae of H. axyridis avoided the first instar conspecific larvae, while those of H. yedoensis were attracted to the odours from H. axyridis and conspecifics. Thus, H. axyridis has an avoidance mechanism only for cannibalism but not for IGP, whereas H. yedoensis does not have any avoidance mechanism. These different behaviours in the direct and indirect effects of cannibalism and IGP observed in the laboratory may play important roles in the coexistence of generalist–common H. axyridis and specialist–rare H. yedoensis in natural conditions, compensating for the large handicap of H. yedoensis at reproductive interference from H. axyridis.

opencc-zeroDec 2023View details →

Responses of avian predators to polymorphic harlequin ladybird (Harmonia axyridis)

Harlequin ladybird (Harmonia axyridis) shows high level of colour polymorphism. Particular forms differ in their colour combination, pattern and abundance. We tested the willingness of native, wild-caught passerines to attack and eat particular forms. We predicted that those forms that are more abundant in the wild are better protected, as they are more familiar to the predators. We compared the forms novemdecimsignata and spectabilis, which represent 97 % of individuals in the wild population, but importantly differ in their visual appearance (mostly orange vs. mostly black). Further, we examined three intermediate forms: axyridis, which is very scarce in the wild, and two forms not occurring in the wild – originating from laboratory breedings: suturalis and aninkae. As predators, we used great tit (Parus major), which is very aversive towards ladybirds, and tree sparrow (Passer montanus), which is quite willing to attack and even eat ladybirds. We compared their responses to particular ladybird forms, with artificially brown-painted ladybird to test for the effect of visual signal. We showed that both bird species attacked all forms of ladybird equally and usually very scarcely. The brown-painted novemdecimsignata form was attacked more often, showing that the visual appearance prevents birds from attacking any conspicuous colour combination. Sparrows tended to eat the attacked ladybirds of forms novemdecimsignata, spectabilis and brown painted. Scarce axyridis form and laboratory forms were very well protected from the attack, very likely due to neophobia.

opencc-zeroFeb 2024View details →

Increased ladybird predation and metabolism do not counterbalance increased field aphid population growth under experimental warming

<ol> <li>Climate change may have diverse and complex impacts on species interactions, destabilizing food webs and ecosystem services. The effects of warming on the top-down biological control of crop pests have been considerably less studied than bottom-up effects through crop physiological changes.</li> <li>We studied the effect of a 2 °C warming in the laboratory and in wheat fields on the predation and metabolism of Harmonia axyridis on wheat aphids using molecular gut content analysis. We also measured the effects of warming on the predation rate and functional response of H. axyridis on each aphid species in the laboratory, as well as on DNA degradation rate.</li> <li>Field densities of Sitobion avenae and Rhopalosiphum padi, the two most abundant wheat aphid species, were increased by 2 and 2.5 times, respectively, under experimental warming, but densities of H. axyridis were not. Field predation rate of H. axyridis on these two aphids was found to be about 25% lower under elevated temperature. This could have been due to faster prey digestion, since degradation of the preferred aphid species, Sitobion avenae, was 1.5 times faster under elevated temperature. However, the functional response of H. axyridis larvae on these two species was 1.5 times higher under warming over the range of prey densities tested (50 to 250 over 24 h). The total predation rate of H. axyridis larvae on a mixture of S. avenae, R. padi and Schizaphis graminum aphid prey was also increased by 1.4 times, but consumption of R. padi aphids was increased while that of S. graminum was decreased under warming.</li> <li>Overall, our results show that global warming could strongly increase pest outbreaks and destabilize biological pest control, which would likely result in accrued yield losses. </li> </ol>

opencc-by-4.0Dec 2013View details →

Fig. 1 in Predominance of Vibidia duodecimguttata (Poda, 1761) in the assemblages of ladybird beetles (Coleoptera: Coccinellidae) overwintering in floodplain forests

Fig. 1. Localization of the ladybird sampling sites (I-VI).

Figs 14–19. Synona consanguinea. 14 in New to the fauna of India ladybird beetles (Coleoptera: Coccinellidae)

Figs 14–19. Synona consanguinea. 14 – habitus, dorsal view; 15 – abdomen; 16 – tegmen,

Figs 1–7. Aspidimerus birmanicus. 1 in New to the fauna of India ladybird beetles (Coleoptera: Coccinellidae)

Figs 1–7. Aspidimerus birmanicus. 1 – habitus, dorsal view; 2 – antennae; 3 – labium;

Figs 20–25. Henosepilachna procera. 20 in New to the fauna of India ladybird beetles (Coleoptera: Coccinellidae)

Figs 20–25. Henosepilachna procera. 20 – habitus, dorsal view; 21 – abdomen; 22 –

Figs 8–13. Cryptogonus nepalensis bhutanensis. 8 in New to the fauna of India ladybird beetles (Coleoptera: Coccinellidae)

Figs 8–13. Cryptogonus nepalensis bhutanensis. 8 – habitus, dorsal view; 9 – abdomen;

Figs 26–29. Sticholotis punctata. 26 in New to the fauna of India ladybird beetles (Coleoptera: Coccinellidae)

Figs 26–29. Sticholotis punctata. 26 – habitus, dorsal view; 27 – abdomen; 28 – tegmen

opencc-by-4.0Dec 2019View details →

Fig. 2 in New records of ladybird beetles (Coleoptera: Coccinellidae) from Kazakhstan

Fig. 2. Dorsal habitus of Myzia gebleri (Crotch, 1874)

opencc-by-4.0Dec 2016View details →

Fig. 3 in A Ladybird (Coleoptera: Coccinellidae) Motif In Crocheted Towel End Lace: The First Example Of Cultural Entomology In Latvia

Fig. 3. Adalia bipunctata (Linneus, 1758) – The Latvian national insect.

opencc-zeroFeb 2023View details →

Juvenile hormone regulates the photoperiodic plasticity of elytra coloration in a ladybird Harmonia axyridis

Many animals, including insects, exhibit plasticity of body color in response to environmental changes. Varied expression of carotenoids, major cuticle pigments, significantly contributes to body color flexibility. However, the molecular mechanisms by which environmental cues regulate carotenoid expression remain largely unknown. In this study, we used the ladybird Harmonia axyridis as a model to investigate the photoperiodic-responsive plasticity of elytra coloration and its endocrine regulation. It was found that H. axyridis females under long-day conditions develop elytra that are much redder than those under short-day conditions, resulting from the differential accumulation of carotenoids. Exogenous hormone application and RNAi-mediated gene knockdown indicate that carotenoid deposition was directed through the juvenile hormone (JH) receptor-mediated canonical pathway. Moreover, we characterized an SR-BI/CD36 (SCRB) gene SCRB10 as the carotenoid transporter responding to JH signaling and regulating the elytra coloration plasticity. Taken together, we propose that JH signaling transcriptionally regulates the carotenoid transporter gene for the photoperiodic coloration plasticity of elytra in the beetles, which reveals a novel role of the endocrine system in the regulation of carotenoid-associated animal body coloration under environmental stimuli.