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1. 'Nobody really understands' : dementia and the world of family carers

Author

Husemann, M.

Subjects
301
Abstract

This thesis provides a comprehensive account of the situation of informal unpaid carers of older people with dementia. Dementia is characterised by a progressive degeneration of intellectual ability, leading to impairment of memory, judgement, and perception, and personality changes. There is no cure, and death typically occurs as a result of pneumonia, strokes, or falls, after a duration of several years. The majority of demented older people are cared for at home often at considerable emotional, financial, social, and physical costs to the carer. This exploratory research highlights the carer's situation both within the informal network of care as well as in relation to formal care provision. Qualitative interviews were conducted with spouse carers as well as adult children, recruited through carer support groups in Sheffield. The thesis presents the carers' views and interpretations of their situation and the findings reveal far-reaching misunderstandings and a mis-match between the views of carers and service providers. Overall, an inadequate understanding of the role of carers and of their needs has been identified. Current service provision, which is mainly based on instrumental support such as day care and respite care, has been found to be inappropriate for the majority of carers and their demented relative. The thesis identifies three main areas where reform is needed and suggests improvements for the recognition of dementia, the management of care, and the empowerment of carers.

Published
2000

3. Citizen Science und Insektenschutz – Die Rolle Ehrenamtlicher am Beispiel des Tagfalter-Monitorings Deutschland

Author

Husemann, M., Thaut, L., Leopold, F., Hartung, V., Lohrmann, V., Barilaro, C., Michalik, P., Iglhaut, S., Settele, Josef, Harpke, Alexander, Feldmann, Reinart, Musche, Martin, Kühn, Elisabeth, Husemann, M., Thaut, L., Leopold, F., Hartung, V., Lohrmann, V., Barilaro, C., Michalik, P., Iglhaut, S., Settele, Josef, Harpke, Alexander, Feldmann, Reinart, Musche, Martin, and Kühn, Elisabeth

Abstract

EinführungDie Möglichkeiten der Finanzierung von Biodiversitätsforschung einschließlich entomologischer Forschung sind begrenzt, wenn es um längere Zeiträume und größere Areale geht. Wollte man in Deutschland beispielsweise 50 Expertinnen und Experten beschädigen, um auf 500 standardisierten Strecken, sogenannten Transekten,die Tagfalter über einen Zeitraum von zehn Jahren nach Standard-Methoden zu erfassen, so würde das je nach Berechnungsbasis zwischen 5 und 20 Millionen Euro kosten. Daten zur Entwicklung zum Beispiel der Insekten-Biodiversität auf nationaler Skala liegen daher bislang nur lückenhaft und unsystematisch vor, sollen nun aberfür Deutschland über das nationale Monitoringzentrum in Leipzig gebündelt, standardisiert und einer systematischen Auswertung zugeführt werden.Viele Mitbürger und Naturfreunde – hier und im Folgenden verwenden wir aus Platzgründen teilweise das generische Maskulinum, es sind aber immer beide Geschlechter gemeint – engagieren sich gerne ehrenamtlich. Zudem empfinden sie den Grad der Unwissenheit über den Zustand der Natur als beschämend für Länder wie Deutschland. Folglich haben beispielsweise der Dachverband Deutscher Avifaunisten (DDA) oder das Helmholtz-Zentrum für Umweltforschung (UFZ) in Kooperation mit der Gesellschaft für Schmetterlingsschutz (GfS) schonvor längerer Zeit eigene Wege gewählt, um entsprechende Rahmenbedingungen zum Sammeln von Informationen zur Verbreitung und Häufigkeit von als Indikatoren besonders geeigneten Tiergruppen zu schaffen. Im Vogelmonitoring des DDA und im Tagfalter-Monitoring Deutschland (TMD) von UFZ/GfS sind es vorallem Ehrenamtliche, die die regelmäßigen Beobachtungen vornehmen. Diese leisten einen immensen Beitrag.

Published
2022

7. Urban areas as hotspots for bees and pollination but not a panacea for all insects

Author

Theodorou, Panagiotis, Radzevičiūtė, Rita, Lentendu, Guillaume, Kahnt, B., Husemann, M., Bleidorn, C., Settele, Josef, Schweiger, Oliver, Grosse, I., Wubet, Tesfaye, Murray, T.E., Paxton, R.J., Theodorou, Panagiotis, Radzevičiūtė, Rita, Lentendu, Guillaume, Kahnt, B., Husemann, M., Bleidorn, C., Settele, Josef, Schweiger, Oliver, Grosse, I., Wubet, Tesfaye, Murray, T.E., and Paxton, R.J.

Abstract

Urbanisation is an important global driver of biodiversity change, negatively impacting some species groups whilst providing opportunities for others. Yet its impact on ecosystem services is poorly investigated. Here, using a replicated experimental design, we test how Central European cities impact flying insects and the ecosystem service of pollination. City sites have lower insect species richness, particularly of Diptera and Lepidoptera, than neighbouring rural sites. In contrast, Hymenoptera, especially bees, show higher species richness and flower visitation rates in cities, where our experimentally derived measure of pollination is correspondingly higher. As well as revealing facets of biodiversity (e.g. phylogenetic diversity) that correlate well with pollination, we also find that ecotones in insect-friendly green cover surrounding both urban and rural sites boost pollination. Appropriately managed cities could enhance the conservation of Hymenoptera and thereby act as hotspots for pollination services that bees provide to wild flowers and crops grown in urban settings.

Published
2020

8. Sweat bees on hot chillies: provision of pollination services by native bees in traditional slash-and-burn agriculture in the Yucatán Peninsula of tropical Mexico

Author

Landaverde-González, Patricia, Quezada-Euán, J.J.G., Theodorou, P., Murray, T.E., Husemann, M., Ayala, R., Moo-Valle, H., Vandame, R., Paxton, R.J., Landaverde-González, Patricia, Quezada-Euán, J.J.G., Theodorou, P., Murray, T.E., Husemann, M., Ayala, R., Moo-Valle, H., Vandame, R., and Paxton, R.J.

Abstract

Traditional tropical agriculture often entails a form of slash-and-burn land management that may adversely affect ecosystem services such as pollination, which are required for successful crop yields. The Yucatán Peninsula of Mexico has a >4000 year history of traditional slash-and-burn agriculture, termed ‘milpa’. Hot ‘Habanero’ chilli is a major pollinator-dependent crop that nowadays is often grown in monoculture within the milpa system.We studied 37 local farmers’ chilli fields (sites) to evaluate the effects of landscape composition on bee communities. At 11 of these sites, we undertook experimental pollination treatments to quantify the pollination of chilli. We further explored the relationships between landscape composition, bee communities and pollination service provision to chilli.Bee species richness, particularly species of the family Apidae, was positively related to the amount of forest cover. Species diversity decreased with increasing proportion of crop land surrounding each sampling site. Sweat bees of the genus Lasioglossum were the most abundant bee taxon in chilli fields and, in contrast to other bee species, increased in abundance with the proportion of fallow land, gardens and pastures which are an integral part of the milpa system.There was an average pollination shortfall of 21% for chilli across all sites; yet the shortfall was unrelated to the proportion of land covered by crops. Rather, chilli pollination was positively related to the abundance of Lasioglossum bees, probably an important pollinator of chilli, as well indirectly to the proportion of fallow land, gardens and pastures that promote Lasioglossum abundance.Synthesis and applications. Current, low-intensity traditional slash-and-burn (milpa) agriculture provides Lasioglossum spp. pollinators for successful chilli production; fallow land, gardens and pasture therefore need to be valued as important habitats for these and related ground-nesting bee species. However

Published
2017

9. Genetic diversity and spatial structure of the Rufous-throated Antbird (Gymnopithys rufigula), an Amazonian obligate army-ant follower

Author

Menger, Juliana, Henle, Klaus, Magnusson, W.E., Soro, A., Husemann, M., Schlegel, M., Menger, Juliana, Henle, Klaus, Magnusson, W.E., Soro, A., Husemann, M., and Schlegel, M.

Abstract

Amazonian understory antbirds are thought to be relatively sedentary and to have limited dispersal ability; they avoid crossing forest gaps, and even narrow roads through a forest may limit their territories. However, most evidence for sedentariness in antbirds comes from field observations and plot-based recapture of adult individuals, which do not provide evidence for lack of genetic dispersal, as this often occurs through juveniles. In this study, we used microsatellite markers and mitochondrial control-region sequences to investigate contemporary and infer historical patterns of genetic diversity and structure of the Rufous-throated Antbird (Gymnopithys rufigula) within and between two large reserves in central Amazonia. Analyses based on microsatellites suggested two genetically distinct populations and asymmetrical gene flow between them. Within a population, we found a lack of genetic spatial autocorrelation, suggesting that genotypes are randomly distributed and that G. rufigula may disperse longer distances than expected for antbirds. Analyses based on mitochondrial sequences did not recover two clear genetic clusters corresponding to the two reserves and indicated the whole population of the Rufous-throated Antbird in the region has been expanding over the last 50,000 years. Historical migration rates were low and symmetrical between the two reserves, but we found evidence for a recent unilateral increase in gene flow. Recent differentiation between individuals of the two reserves and a unilateral increase in gene flow suggest that recent urban expansion and habitat loss may be driving changes and threatening populations of Rufous-throated Antbird in central Amazonia. As ecological traits and behavioral characteristics affect patterns of gene flow, comparative studies of other species with different behavior and ecological requirements will be necessary to better understand patterns of genetic dispersal and effects of urban expansion on A

Published
2017

15. Search for a Higgs boson in the diphoton final state using the full CDF data set from pp collisions at s=1.96TeV

Author

Aaltonen, T., Álvarez, González, Amerio, B., Amidei, S., Anastassov, D., Annovi, A., Antos, A., Apollinari, J., Appel, G., J. A., Arisawa, Artikov, T., Asaadi, A., Ashmanskas, J., Auerbach, W., Aurisano, B., Azfar, A., Badgett, F., Bae, W., Barbaro, Galtieri, Barnes, A., V. E., Barnett, B. A., Barria, Bartos, P., Bauce, P., Bedeschi, M., Behari, F., Bellettini, S., Bellinger, G., Benjamin, J., Beretvas, D., Bhatti, A., Bisello, A., Bizjak, D., Bland, I., K. R., Blumenfeld, Bocci, B., Bodek, A., Bortoletto, A., Boudreau, D., Boveia, J., Brigliadori, A., Bromberg, L., Brucken, C., Budagov, E., Budd, J., H. S., Burkett, Busetto, K., Bussey, G., Buzatu, P., Calamba, A., Calancha, A., Camarda, C., Campanelli, S., Campbell, M., Canelli, M., Carls, F., Carlsmith, B., Carosi, D., Carrillo, R., Carron, S., Casal, S., Casarsa, B., Castro, M., Catastini, A., Cauz, P., Cavaliere, D., Cavalli, Sforza, Cerri, M., Cerrito, A., Chen, L., Y. C., Chertok, Chiarelli, M., Chlachidze, G., Chlebana, G., Cho, F., Chokheli, K., Chung, D., W. H., Chung, Y. S., Ciocci, M. A., Clark, Clarke, A., Compostella, C., Convery, G., M. E., Conway, Corbo, J., Cordelli, M., Cox, M., C. A., Cox, D. J., Crescioli, Cuevas, F., Culbertson, J., Dagenhart, R., D'Ascenzo, D., Datta, N., Barbaro, De, Dell'Orso, Mauro, Demortier, M., Deninno, L., Devoto, M., D'Errico, F., Canto, Di, Ruzza, Di, Dittmann, B., J. R., D'Onofrio, Donati, Simone, Dong, P., Dorigo, M., Dorigo, T., Ebina, K., Elagin, A., Eppig, A., Erbacher, R., Errede, S., Ershaidat, N., Eusebi, R., Farrington, S., Feindt, M., Fernandez, J. P., Field, R., Flanagan, G., Forrest, R., Frank, M. J., Franklin, M., Freeman, J. C., Funakoshi, Y., Furic, I., Gallinaro, M., Garcia, J. E., Garfinkel, A. F., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Giannetti, P., Gibson, K., Ginsburg, C. M., Giokaris, N., Giromini, P., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Goldschmidt, N., Golossanov, A., Gomez, G., Gomez, Ceballos, Goncharov, G., González, M., Gorelov, O., Goshaw, I., A. T., Goulianos, Grinstein, K., Grosso, Pilcher, Group, C., R. C., Guimaraes da Costa, Hahn, J., S. R., Halkiadakis, Hamaguchi, E., Han, A., J. Y., Happacher, Hara, F., Hare, K., Hare, D., Harr, M., R. F., Hatakeyama, Hays, K., Heck, C., Heinrich, M., Herndon, J., Hewamanage, M., Hocker, S., Hopkins, A., Horn, W., Hou, D., Hughes, S., R. E., Hurwitz, Husemann, M., Hussain, U., Hussein, N., Huston, M., Introzzi, J., Iori, G., Ivanov, M., James, A., Jang, E., Jayatilaka, D., Jeon, B., E. J., Jindariani, Jones, S., Joo, M., K. K., Jun, S. Y., Junk, T. R., Kamon, Karchin, T., P. E., Kasmi, Kato, A., Ketchum, Y., Keung, W., Khotilovich, J., Kilminster, V., Kim, B., D. H., Kim, H. S., Kim, J. E., Kim, M. J., Kim, S. B., Kim, S. H., Kim, Y. K., Kim, Y. J., Kimura, Kirby, N., Klimenko, M., Knoepfel, S., Kondo, K., Kong, K., D. J., Konigsberg, Kotwal, J., A. V., Kreps, Kroll, M., Krop, J., Kruse, D., Krutelyov, M., Kuhr, V., Kurata, T., Kwang, M., Laasanen, S., A. T., Lami, Lammel, S., Lancaster, S., Lander, M., R. L., Lannon, Lath, K., Latino, A., Lecompte, G., Lee, T., Lee, E., H. S., Lee, J. S., Lee, S. W., Leo, Leone, S., Lewis, S., J. D., Limosani, Lin, A., C. J., Lindgren, Lipeles, M., Lister, E., Litvintsev, A., D. O., Liu, Liu, C., Liu, H., Liu, Q., Lockwitz, T., Loginov, S., Lucchesi, A., Lueck, D., Lujan, J., Lukens, P., Lungu, P., Lys, G., Lysak, J., Madrak, R., Maeshima, R., Maestro, K., Malik, P., Manca, S., Manousakis, Katsikakis, Margaroli, A., Marino, F., Martínez, C., Mastrandrea, M., Matera, P., Mattson, K., M. E., Mazzacane, Mazzanti, A., Mcfarland, P., K. S., Mcintyre, Mcnulty, P., Mehta, R., Mehtala, A., Mesropian, P., Miao, C., Mietlicki, T., Mitra, D., Miyake, A., Moed, H., Moggi, S., Mondragon, N., M. N., Moon, C. S., Moore, Morello, R., M. J., Morlock, Movilla, Fernandez, Mukherjee, P., Muller, A., Murat, T., Mussini, P., Nachtman, M., Nagai, J., Naganoma, Y., Nakano, J., Napier, I., Nett, A., Neu, J., Neubauer, C., M. S., Nielsen, Nodulman, J., Noh, L., S. Y., Norniella, Oakes, O., Oh, L., S. H., Oh, Y. D., Oksuzian, Okusawa, I., Orava, T., Ortolan, R., Pagan, Griso, Pagliarone, S., Palencia, C., Papadimitriou, E., Paramonov, V., A. A., Patrick, Pauletta, J., Paulini, G., Paus, M., Pellett, C., D. E., Penzo, Phillips, A., T. J., Piacentino, Pianori, G., Pilot, E., Pitts, J., Plager, K., Pondrom, C., Poprocki, L., Potamianos, S., Prokoshin, K., Pranko, F., Ptohos, A., Punzi, Giovanni, Rahaman, G., Ramakrishnan, A., Ranjan, V., Redondo, N., Renton, I., Rescigno, P., Riddick, M., Rimondi, T., Ristori, F., Robson, L., Rodrigo, A., Rodriguez, T., Rogers, T., Rolli, E., Roser, S., Ruffini, R., Ruiz, F., Russ, A., Rusu, J., Safonov, V., Sakumoto, A., W. K., Sakurai, Santi, Y., Sato, L., Saveliev, K., Savoy, Navarro, Schlabach, A., Schmidt, P., Schmidt, A., E. E., Schwarz, Scodellaro, T., Scribano, L., Scuri, A., Seidel, F., Seiya, S., Semenov, Y., Sforza, A., Shalhout, F., S. Z., Shears, Shepard, T., P. F., Shimojima, Shochet, M., Shreyber, Tecker, Simonenko, I., Sinervo, A., Sliwa, P., Smith, K., J. R., Snider, F. D., Soha, Sorin, A., Song, V., Squillacioti, H., Stancari, P., Denis, S. t., Stelzer, R., Stelzer, Chilton, Stentz, O., Strologas, D., Strycker, J., G. L., Sudo, Sukhanov, Y., Suslov, A., Takemasa, I., Takeuchi, K., Tang, Y., Tecchio, J., Teng, M., P. K., Thom, Thome, J., Thompson, J., G. A., Thomson, Toback, E., Tokar, D., Tollefson, S., Tomura, K., Tonelli, T., Torre, D., Torretta, S., Totaro, D., Trovato, P., Ukegawa, M., Uozumi, F., Varganov, S., Vázquez, A., Velev, F., Vellidis, G., Vidal, C., Vila, M., Vilar, I., Vizán, R., Vogel, J., Volpi, M., Wagner, G., Wagner, P., R. L., Wakisaka, Wallny, T., Wang, R., S. M., Warburton, Waters, A., Wester, D., W. C., Whiteson, Wicklund, D., A. B., Wicklund, Wilbur, E., Wick, S., Williams, F., H. H., Wilson, J. S., Wilson, Winer, P., B. L., Wittich, Wolbers, P., Wolfe, S., Wright, H., Wu, T., Wu, X., Yamamoto, Z., Yamato, K., Yang, D., Yang, T., U. K., Yang, Y. C., Yao, W. M., Yeh, G. P., Yi, Yoh, K., Yorita, J., Yoshida, K., Yu, T., G. B., Yu, Yu, I., S. S., Yun, J. C., Zanetti, Zeng, A., Zhou, Y., Zucchelli, C., S. azaki T., Ya mazaki, Y., Yan, Z., Yang, H., Yang, S., Yang, U. K., Yang, Y., Yang, Z., Yanush, S., Yao, W. M., Yao, Y., Yasu, Y., Ye, J., Ye, S., Yilmaz, M., Yoosoofmiya, R., Yorita, K., Yoshida, R., Young, C., Youssef, S., Yu, D., Yu, J., Yuan, L., Yurkewicz, A., Zaets, V. G., Zaidan, R., Zaitsev, A. M., Zajacova, Z., Zalite, Y. o. K., Zanello, L., Zarzhitsky, P., Zaytsev, A., Zdrazil, M., Zeitnitz, C., Zeller, M., Zema, P. F., Zemla, A., Zendler, C., Zenin, A. V., Zenin, O., Zenis, T., Zenonos, Z., Zenz, S., Zerwas, D., Zevi, della Porta G., Zhan, Z., Zhang, D., Zhang, H., Zhang, J., Zhang, X., Zhang, Z., Zhao, L., Zhao, T., Zhao, Z., Zhemchugov, A., Zheng, S., Zhong, J., Zhou, B., Zhou, N., Zhu, C. G., Zhu, H., Zhu, Y., Zhuang, X., Zhuravlov, V., Zieminska, D., Zilka, B., Zimmermann, R., Zimmermann, S., Ziolkowski, M., Zitoun, R., Zivkovic, L., Zmouchko, V. V., Zobernig, G., Zoccoli, A., Zolnierowski, Y., Zsenei, A., zur Nedden, M., Zutshi, V., and Zwalinski, L.

Subjects
Nuclear and High Energy Physics, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

A search for a narrow Higgs boson resonance in the diphoton mass spectrum is presented based on data corresponding to 10fb -1 of integrated luminosity collected by the CDF experiment from proton-antiproton collisions at s=1.96TeV. To increase the sensitivity of the search, we employ a multivariate discriminant technique for the first time in this channel at CDF. No evidence of signal is observed, and upper limits are set on the cross section times branching ratio of the resonant state as a function of the Higgs boson mass. The limits are interpreted in the context of the standard model with an expected (observed) limit on the cross section times branching ratio of 9.9 (17.0) times the standard model prediction at the 95% credibility level for a Higgs boson mass of 125GeV/c 2. Moreover, a Higgs boson with suppressed couplings to fermions is excluded for masses below 114GeV/c 2 at the 95% credibility level. © 2012 Elsevier B.V.

Published
2012

16. Microallopatry caused strong diversification in Buthus scorpions (Scorpiones: Buthidae) in the Atlas Mountains (NW Africa)

Author

Habel, J.C. Husemann, M. Schmitt, T. Zachos, F.E. Honnen, A.-C. Petersen, B. Parmakelis, A. Stathi, I.

Abstract

The immense biodiversity of the Atlas Mountains in North Africa might be the result of high rates of microallopatry caused by mountain barriers surpassing 4000 meters leading to patchy habitat distributions. We test the influence of geographic structures on the phylogenetic patterns among Buthus scorpions using mtDNA sequences. We sampled 91 individuals of the genus Buthus from 51 locations scattered around the Atlas Mountains (Antiatlas, High Atlas, Middle Atlas and Jebel Sahro). We sequenced 452 bp of the Cytochrome Oxidase I gene which proved to be highly variable within and among Buthus species. Our phylogenetic analysis yielded 12 distinct genetic groups one of which comprised three subgroups mostly in accordance with the orographic structure of the mountain systems. Main clades overlap with each other, while subclades are distributed parapatrically. Geographic structures likely acted as long-term barriers among populations causing restriction of gene flow and allowing for strong genetic differentiation. Thus, genetic structure and geographical distribution of genetic (sub)clusters follow the classical theory of allopatric differentiation where distinct groups evolve without range overlap until reproductive isolation and ecological differentiation has built up. Philopatry and low dispersal ability of Buthus scorpions are the likely causes for the observed strong genetic differentiation at this small geographic scale. © 2012 Habel et al.

Published
2012

17. Measurement of the bottom-strange meson mixing phase in the full CDF data set

Author

Aaltonen, T., Alvarez, González, Amerio, B., Amidei, S., Anastassov, D., Annovi, A., Antos, A., Apollinari, J., Appel, G., J. A., Arisawa, Artikov, T., Asaadi, A., Ashmanskas, J., Auerbach, W., Aurisano, B., Azfar, A., Badgett, F., Bae, W., Barbaro, Galtieri, Barnes, A., V. E., Barnett, B. A., Barria, Bartos, P., Bauce, P., Bedeschi, M., Behari, F., Bellettini, S., Bellinger, G., Benjamin, J., Beretvas, D., Bhatti, A., Bisello, A., Bizjak, D., Bland, I., K. R., Blumenfeld, Bocci, B., Bodek, A., Bortoletto, A., Boudreau, D., Boveia, J., Brigliadori, A., Bromberg, L., Brucken, C., Budagov, E., Budd, J., H. S., Burkett, Busetto, K., Bussey, G., Buzatu, P., Calamba, A., Calancha, A., Camarda, C., Campanelli, S., Campbell, M., Canelli, M., Carls, F., Carlsmith, B., Carosi, D., Carrillo, R., Carron, S., Casal, S., Casarsa, B., Castro, M., Catastini, A., Cauz, P., Cavaliere, D., Cavalli, Sforza, Cerri, M., Cerrito, A., Chen, L., Y. C., Chertok, Chiarelli, M., Chlachidze, G., Chlebana, G., Cho, F., Chokheli, K., Chung, D., W. H., Chung, Y. S., Ciocci, M. A., Clark, Clarke, A., Compostella, C., Convery, G., M. E., Conway, Corbo, J., Cordelli, M., Cox, M., C. A., Cox, D. J., Crescioli, Cuevas, F., Culbertson, J., Dagenhart, R., D'Ascenzo, D., Datta, N., Barbaro, De, Dell'Orso, Mauro, Demortier, M., Deninno, L., Devoto, M., D'Errico, F., Canto, Di, Ruzza, Di, Dittmann, B., J. R., D'Onofrio, Donati, Simone, Dong, P., Dorigo, M., Dorigo, T., Ebina, K., Elagin, A., Eppig, A., Erbacher, R., Errede, S., Ershaidat, N., Eusebi, R., Farrington, S., Feindt, M., Fernandez, J. P., Field, R., Flanagan, G., Forrest, R., Frank, M. J., Franklin, M., Freeman, J. C., Funakoshi, Y., Furic, I., Gallinaro, M., Garcia, J. E., Garfinkel, A. F., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Giannetti, P., Gibson, K., Ginsburg, C. M., Giokaris, N., Giromini, P., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Goldschmidt, N., Golossanov, A., Gomez, G., Gomez, Ceballos, Goncharov, G., González, M., Gorelov, O., Goshaw, I., A. T., Goulianos, Grillo, K., Grinstein, L., Grosso, Pilcher, Group, C., R. C., Guimaraes Da Costa, Hahn, J., S. R., Halkiadakis, Hamaguchi, E., Han, A., J. Y., Happacher, Hara, F., Hare, K., Hare, D., Harr, M., R. F., Hatakeyama, Hays, K., Heck, C., Heinrich, M., Herndon, J., Hewamanage, M., Hocker, S., Hopkins, A., Horn, W., Hou, D., Hughes, S., R. E., Hurwitz, Husemann, M., Hussain, U., Hussein, N., Huston, M., Introzzi, J., Iori, G., Ivanov, M., James, A., Jang, E., Jayatilaka, D., Jeon, B., E. J., Jindariani, Jones, S., Joo, M., K. K., Jun, S. Y., Junk, T. R., Kamon, Karchin, T., P. E., Kasmi, Kato, A., Ketchum, Y., Keung, W., Khotilovich, J., Kilminster, V., Kim, B., D. H., Kim, H. S., Kim, J. E., Kim, M. J., Kim, S. B., Kim, S. H., Kim, Y. K., Kim, Y. J., Kimura, Kirby, N., Klimenko, M., Knoepfel, S., Kondo, K., Kong, K., D. J., Konigsberg, Kotwal, J., A. V., Kreps, Kroll, M., Krop, J., Kruse, D., Krutelyov, M., Kuhr, V., Kurata, T., Kwang, M., Laasanen, S., A. T., Lami, Lammel, S., Lancaster, S., Lander, M., R. L., Lannon, Lath, K., Latino, A., Lecompte, G., Lee, T., Lee, E., H. S., Lee, J. S., Lee, S. W., Leo, Leone, S., Lewis, S., J. D., Limosani, Lin, A., C. J., Lindgren, Lipeles, M., Lister, E., Litvintsev, A., D. O., Liu, Liu, C., Liu, H., Liu, Q., Lockwitz, T., Loginov, S., Lucchesi, A., Lueck, D., Lujan, J., Lukens, P., Lungu, P., Lys, G., Lysak, J., Madrak, R., Maeshima, R., Maestro, K., Malik, P., Manca, S., Manousakis, Katsikakis, Margaroli, A., Marino, F., Martínez, C., Mastrandrea, M., Matera, P., Mattson, K., M. E., Mazzacane, Mazzanti, A., Mcfarland, P., K. S., Mcintyre, Mcnulty, P., Mehta, R., Mehtala, A., Mesropian, P., Miao, C., Mietlicki, T., Mitra, D., Miyake, A., Moed, H., Moggi, S., Mondragon, N., M. 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K., Sakumoto, Y., Sakurai, L., Santi, K., Sato, V., Saveliev, A., Savoy Navarro, P., Schlabach, A., Schmidt, E. E., Schmidt, T., Schwarz, L., Scodellaro, A., Scribano, F., Scuri, S., Seidel, Y., Seiya, A., Semenov, F., Sforza, S. Z., Shalhout, T., Shear, P. F., Shepard, M., Shimojima, M., Shochet, I., Shreyber Tecker, A., Simonenko, P., Sinervo, K., Sliwa, J. R., Smith, F. D., Snider, A., Soha, V., Sorin, H., Song, P., Squillacioti, M., Stancari, R. S., Deni, B., Stelzer, O., Stelzer Chilton, D., Stentz, J., Strologa, G. L., Strycker, Y., Sudo, A., Sukhanov, I., Suslov, K., Takemasa, Y., Takeuchi, J., Tang, M., Tecchio, P. K., Teng, J., Thom, J., Thome, G. A., Thompson, E., Thomson, D., Toback, S., Tokar, K., Tollefson, T., Tomura, D., Tonelli, S., Torre, D., Torretta, P., Totaro, M., Trovato, F., Ukegawa, S., Uozumi, A., Varganov, F., Vazquez, G., Velev, C., Vellidi, M., Vidal, I., Vila, R., Vilar, J., Vizan, M., Vogel, G., Volpi, P., Wagner, R. L., Wagner, T., Wakisaka, R., Wallny, S. M., Wang, A., Warburton, D., Water, W. C., Wester, D., Whiteson, A. B., Wicklund, E., Wicklund, S., Wilbur, F., Wick, H. H., William, J. S., Wilson, P., Wilson, B. L., Winer, P., Wittich, S., Wolber, H., Wolfe, T., Wright, X., Wu, Z., Wu, K., Yamamoto, D., Yamato, T., Yang, U. K., Yang, Y. C., Yang, W. M., Yao, G. P., Yeh, K., Yi, J., Yoh, K., Yorita, T., Yoshida, G. B., Yu, I., Yu, S. S., Yu, J. C., Yun, A., Zanetti, Y., Zeng, C., Zhou, S., Zucchelli, B. c., Alvarez, A. c., Anastassov, J. c., Anto, J., Appel, T. c., Ct, V., Barne, B., Barnett, P. a., Barria, P. c., Barto, M. a., Bauce, G. a., Bellettini, D. a., Bisello, K., Bland, L. g., Brigliadori, H., Budd, G. a., Busetto, A. b., Cx, F. p., Canelli, S. b., Carrillo, B. b., Casal, A. g., Castro, A. b., Cerri, L. c., Cerrito, Y., Chen, K. c., Ct, W., Chung, Y., Chung, M. a., Ciocci, G. a., Compostella, M., Convery, C., Cox, D., Cox, F. a., Crescioli, J. c., Cueva, N. c., D'Ascenzo, M. a., Dell'Orso, M. a., D'Errico, A. a., Di, J., Dittmann, S. a., Donati, Dorigo, Mirco, N. c., Ershaidat, J., Fernandez, G. c., Flanagan, M., Frank, J., Freeman, J., Garcia, A., Garfinkel, P. a., Garosi, C., Ginsburg, O., González, A., Goshaw, R. b., Group, S., Hahn, J., Han, R., Harr, W. b., Hopkin, R., Hughe, N. b., Cx, M. b., Iori, A. c., Ivanov, E. c., Ct, S., Jun, T., Junk, T. b., C, P., Karchin, Y. c., Kato, D. c., Ct, H. c., Ct, J. c., Ct, M., Kim, S. c., Ct, S., Kim, Y., Kim, Y. c., Ct, A., Kotwal, V. b., Krutelyov, A., Laasanen, R., Lander, K. c., Lannon, G. a., Latino, H. c., Lee, S. c., Lee, S. a., Leo, J., Lewi, A. c., Limosani, C., Lin, D., Litvintsev, D. a., Lucchesi, R. b., Cr, P. a., Maestro, G. b., Manca, M., Martínez, M., Mattson, K., Mcfarland, R. b., Mcnulty, M. b., Mondragon, C. c., Ct, M. a., Morello, M. g., Mussini, J. c., Nachtman, M., Neubauer, J. b., Nielsen, S., Oh, S. a., Pagan, E. b., Palencia, A., Paramonov, G. b., Pauletta, D., Pellett, T., Phillip, S. b., Poprocki, F. c., Prokoshin, F. b., Ptoho, G. a., Punzi, F. g., Rimondi, L. a., Ristori, S. b., Rolli, F. a., Ruffini, W., Sakumoto, L. b., Santi, V. c., Saveliev, A. c., Savoy Navarro, E., Schmidt, A. a., Scribano, F. a., Sforza, S., Shalhout, P., Shepard, M. c., Shimojima, P. b., Cx, J., Smith, F., Snider, P. a., Squillacioti, B. b., Cx, O. b., Cx, D. c., Stentz, G., Strycker, P., Teng, J. b., Thom, G., Thompson, S. c., Tokar, M. a., Trovato, F. b., Vázquez, J., Vizán, R., Wagner, S., Wang, W., Wester, D. b., Whiteson, A., Wicklund, H., William, J., Wilson, B., Winer, P. b., Wittich, U. c., Yang, W., Yao, G., Yeh, K. c., Yi, T. b., Yoshida, G., Yu, I. c., Ct, S., Yu, J., Yun, S. g., Zucchelli, T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Anto, G. Apollinari, J. Appel, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanska, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, T. Bae, A. Barbaro-Galtieri, V. Barne, B. Barnett, P. Barria, P. Barto, M. Bauce, F. Bedeschi, S. Behari, G. Bellettini, J. Bellinger, D. Benjamin, A. Beretva, A. Bhatti, D. Bisello, I. Bizjak, K. Bland, B. Blumenfeld, A. Bocci, A. Bodek, D. Bortoletto, J. Boudreau, A. Boveia, L. Brigliadori, C. Bromberg, E. Brucken, J. Budagov, H. Budd, K. Burkett, G. Busetto, P. Bussey, A. Buzatu, A. Calamba, C. Calancha, S. Camarda, M. Campanelli, M. Campbell, F. Canelli, B. Carl, D. Carlsmith, R. Carosi, S. Carrillo, S. Carron, B. Casal, M. Casarsa, A. Castro, P. Catastini, D. Cauz, V. Cavaliere, M. Cavalli-Sforza, A. Cerri, L. Cerrito, Y. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, K. Cho, D. Chokheli, W. Chung, Y. Chung, M. Ciocci, A. Clark, C. Clarke, G. Compostella, M. Convery, J. Conway, M. Corbo, M. Cordelli, C. Cox, D. Cox, F. Crescioli, J. Cueva, R. Culbertson, D. Dagenhart, N. d’Ascenzo, M. Datta, P. de Barbaro, M. Dell’Orso, L. Demortier, M. Deninno, F. Devoto, M. d’Errico, A. Di Canto, B. Di Ruzza, J. Dittmann, M. D’Onofrio, S. Donati, P. Dong, M. Dorigo, T. Dorigo, K. Ebina, A. Elagin, A. Eppig, R. Erbacher, S. Errede, N. Ershaidat, R. Eusebi, S. Farrington, M. Feindt, J. Fernandez, R. Field, G. Flanagan, R. Forrest, M. Frank, M. Franklin, J. Freeman, Y. Funakoshi, I. Furic, M. Gallinaro, J. Garcia, A. Garfinkel, P. Garosi, H. Gerberich, E. Gerchtein, S. Giagu, V. Giakoumopoulou, P. Giannetti, K. Gibson, C. Ginsburg, N. Giokari, P. Giromini, G. Giurgiu, V. Glagolev, D. Glenzinski, M. Gold, D. Goldin, N. Goldschmidt, A. Golossanov, G. Gomez, G. Gomez-Ceballo, M. Goncharov, O. González, I. Gorelov, A. Goshaw, K. Gouliano, L. Grillo, S. Grinstein, C. Grosso-Pilcher, R. Group, J. Guimaraes da Costa, S. Hahn, E. Halkiadaki, A. Hamaguchi, J. Han, F. Happacher, K. Hara, D. Hare, M. Hare, R. Harr, K. Hatakeyama, C. Hay, M. Heck, J. Heinrich, M. Herndon, S. Hewamanage, A. Hocker, W. Hopkin, D. Horn, S. Hou, R. Hughe, M. Hurwitz, U. Husemann, N. Hussain, M. Hussein, J. Huston, G. Introzzi, M. Iori, A. Ivanov, E. Jame, D. Jang, B. Jayatilaka, E. Jeon, S. Jindariani, M. Jone, K. Joo, S. Jun, T. Junk, T. Kamon, P. Karchin, A. Kasmi, Y. Kato, W. Ketchum, J. Keung, V. Khotilovich, B. Kilminster, D. Kim, H. Kim, J. Kim, M. Kim, S. Kim, Y. Kim, N. Kimura, M. Kirby, S. Klimenko, K. Knoepfel, K. Kondo, D. Kong, J. Konigsberg, A. Kotwal, M. Krep, J. Kroll, D. Krop, M. Kruse, V. Krutelyov, T. Kuhr, M. Kurata, S. Kwang, A. Laasanen, S. Lami, S. Lammel, M. Lancaster, R. Lander, K. Lannon, A. Lath, G. Latino, T. LeCompte, E. Lee, H. Lee, J. Lee, S. Lee, S. Leo, S. Leone, J. Lewi, A. Limosani, C.-J. Lin, M. Lindgren, E. Lipele, A. Lister, D. Litvintsev, C. Liu, H. Liu, Q. Liu, T. Liu, S. Lockwitz, A. Loginov, D. Lucchesi, J. Lueck, P. Lujan, P. Luken, G. Lungu, J. Ly, R. Lysak, R. Madrak, K. Maeshima, P. Maestro, S. Malik, G. Manca, A. Manousakis-Katsikaki, F. Margaroli, C. Marino, M. Martínez, P. Mastrandrea, K. Matera, M. Mattson, A. Mazzacane, P. Mazzanti, K. McFarland, P. McIntyre, R. McNulty, A. Mehta, P. Mehtala, C. Mesropian, T. Miao, D. Mietlicki, A. Mitra, H. Miyake, S. Moed, N. Moggi, M. Mondragon, C. Moon, R. Moore, M. Morello, J. Morlock, P. Movilla Fernandez, A. Mukherjee, Th. Muller, P. Murat, M. Mussini, J. Nachtman, Y. Nagai, J. Naganoma, I. Nakano, A. Napier, J. Nett, C. Neu, M. Neubauer, J. Nielsen, L. Nodulman, S. Noh, O. Norniella, L. Oake, S. Oh, Y. Oh, I. Oksuzian, T. Okusawa, R. Orava, L. Ortolan, S. Pagan Griso, C. Pagliarone, E. Palencia, V. Papadimitriou, A. Paramonov, J. Patrick, G. Pauletta, M. Paulini, C. Pau, D. Pellett, A. Penzo, T. Phillip, G. Piacentino, E. Pianori, J. Pilot, K. Pitt, C. Plager, L. Pondrom, S. Poprocki, K. Potamiano, F. Prokoshin, A. Pranko, F. Ptoho, G. Punzi, A. Rahaman, V. Ramakrishnan, N. Ranjan, I. Redondo, P. Renton, M. Rescigno, T. Riddick, F. Rimondi, L. Ristori, A. Robson, T. Rodrigo, T. Rodriguez, E. Roger, S. Rolli, R. Roser, F. Ruffini, A. Ruiz, J. Ru, V. Rusu, A. Safonov, W. Sakumoto, Y. Sakurai, L. Santi, K. Sato, V. Saveliev, A. Savoy-Navarro, P. Schlabach, A. Schmidt, E. Schmidt, T. Schwarz, L. Scodellaro, A. Scribano, F. Scuri, S. Seidel, Y. Seiya, A. Semenov, F. Sforza, S. Shalhout, T. Shear, P. Shepard, M. Shimojima, M. Shochet, I. Shreyber-Tecker, A. Simonenko, P. Sinervo, K. Sliwa, J. Smith, F. Snider, A. Soha, V. Sorin, H. Song, P. Squillacioti, M. Stancari, R. St. Deni, B. Stelzer, O. Stelzer-Chilton, D. Stentz, J. Strologa, G. Strycker, Y. Sudo, A. Sukhanov, I. Suslov, K. Takemasa, Y. Takeuchi, J. Tang, M. Tecchio, P. Teng, J. Thom, J. Thome, G. Thompson, E. Thomson, D. Toback, S. Tokar, K. Tollefson, T. Tomura, D. Tonelli, S. Torre, D. Torretta, P. Totaro, M. Trovato, F. Ukegawa, S. Uozumi, A. Varganov, F. Vázquez, G. Velev, C. Vellidi, M. Vidal, I. Vila, R. Vilar, J. Vizán, M. Vogel, G. Volpi, P. Wagner, R. Wagner, T. Wakisaka, R. Wallny, S. Wang, A. Warburton, D. Water, W. Wester, D. Whiteson, A. Wicklund, E. Wicklund, S. Wilbur, F. Wick, H. William, J. Wilson, P. Wilson, B. Winer, P. Wittich, S. Wolber, H. Wolfe, T. Wright, X. Wu, Z. Wu, K. Yamamoto, D. Yamato, T. Yang, U. Yang, Y. Yang, W.-M. Yao, G. Yeh, K. Yi, J. Yoh, K. Yorita, T. Yoshida, G. Yu, I. Yu, S. Yu, J. Yun, A. Zanetti, Y. Zeng, C. Zhou, S. Zucchelli, and Universidad de Cantabria

Subjects
FERMILAB TEVATRON COLLIDER, Particle physics, CP-violating asymmetries, Meson, B physic, General Physics and Astronomy, FOS: Physical sciences, B physics, Angle distribution, Branching ratio, CDF experiments, CP violations, CP-violating asymmetries, Data sample, Fermilab Tevatron collider, Integrated luminosity, Longitudinal polarization, Vector meson, Longitudinal polarization, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Vector meson, Physics and Astronomy (all), High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Mixing (mathematics), Strange b mesons, Phase (matter), 0103 physical sciences, STRANGE QUARK, mixing, Bottom-Strange Meson Mixing Phase, proton antiproton collisions, 010306 general physics, TEVATRON, Nuclear Experiment, BOTTOM QUARK, Physics, Integrated luminosity, 010308 nuclear & particles physics, Branching ratio, High Energy Physics - Phenomenology, CDF experiments, CP violations, Full data, Content (measure theory), Angle distribution, CDF, Production (computer science), High Energy Physics::Experiment, Data sample
Abstract

We report a measurement of the bottom-strange meson mixing phase βs using the time evolution of Bs0→J/ψ(→μ+μ-)ϕ(→K+K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at s=1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of βs and the Bs0 decay-width difference ΔΓs and measure βs∈[-π/2,-1.51]∪[-0.06,0.30]∪[1.26,π/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of βs, we also determine ΔΓs=0.068±0.026(stat)±0.009(syst) ps-1 and the mean Bs0 lifetime τs=1.528±0.019(stat)±0.009(syst) ps, which are consistent and competitive with determinations by other experiments., This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC).

Published
2012

20. 44. 'Kin recognition' und 'kin selection' bei Honigbienen in heterogen zusammengesetzten Kleinvölkern

Author

Husemann, M, Rosenkranz, P, and Revues Inra, Import

Subjects
[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies, [SDV.BA.ZI] Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, [SDV.SA.SPA] Life Sciences [q-bio]/Agricultural sciences/Animal production studies, [SDV.BID]Life Sciences [q-bio]/Biodiversity, ComputingMilieux_MISCELLANEOUS, [SDV.BID] Life Sciences [q-bio]/Biodiversity
Abstract

International audience

Published
1996

32. Using Atom Transfer Radical Polymerization To Amplify Monolayers of Initiators Patterned by Microcontact Printing into Polymer Brushes for Pattern Transfer

Author

Shah, R. R., Merreceyes, D., Husemann, M., Rees, I., Abbott, N. L., Hawker, C. J., and Hedrick, J. L.

Abstract

We report the use of atom transfer radical polymerization (ATRP) to amplify initiators patterned on films of gold into polymer brushes of poly(methyl methacrylate) (PMMA), poly(hydroxyethyl methacrylate) (PHEMMA), poly(tert-butyl methacrylate) (PTBA), poly(isobornyl methacrylate) (PIBMA), and poly((dimethylamino)ethylmethyl acrylate) (PDMAEMA). Pattern transfer into gold substrates underlying polymer brushes was achieved by using the patterned brushes as barriers to wet chemical etchants of gold. The surface-confined initiators for ATRP were prepared by the self-assembly of (BrC(CH3)2COO(CH2) 10S)2 (I) on films of gold. These monolayers were assembled from solutions of hexadecane at 60 °C so as to prevent their thermal desorption during ATRP (also performed at 60 °C). By measuring the resistance offered by these brushes to etching of underlying films of gold by aqueous solutions of KI/I2, KCN/K3Fe(CN)6, and 50 vol % aqua regia (70 vol % HNO3 and 30 vol % HCl), we conclude that both the thickness and chemical functionality of the polymer brushes as well as the choice of etchant can be tailored to control the etch resistance of polymer brushes. Thick brushes formed from hydrophobic monomers were found to be the most effective in resisting all etchants. The etch resistance of a PMMA brush was observed to be greatest when using aqua regia or KI/I2 to etch an underlying film of gold. For example, when using PMMA brushes (thickness 450 Å), we measured the brushes to slow the etching of the underlying films of gold by KI/I2 by almost 2 orders of magnitude as compared to monolayers formed from I. By using microcontact printing to pattern SAMs formed from I, we demonstrate the usefulness of ATRP in schemes for transferring patterns present in monolayers of molecules into underlying substrates.

Published
2000

33. Query Languages and Query Processing (QLQP 2006)

Author

Stefan Conrad, Laborda, C. P., Sattler, K. -U, Balke, W. -T, Dittrich, J., Freytag, J. -C, Grust, T., Ilyas, I. F., Lehner, W., Manegold, S., Markl, V., Meyer, H., Paton, N., Pedersen, T. B., Ritter, N., Schenkel, R., Seeger, B., Husemann, M., Kozlova, I., Omari, A., Popfinger, C., and Teubner, J.

35. The ongoing range expansion of the invasive oak lace bug across Europe: current occurrence and potential distribution under climate change.

Author

Ciceu A, Bălăcenoiu F, de Groot M, Chakraborty D, Avtzis D, Barta M, Blaser S, Bracalini M, Castagneyrol B, Chernova UA, Çota E, Csóka G, Dautbasic M, Glavendekic M, Gninenko YI, Hoch G, Hradil K, Husemann M, Meshkova V, Mujezinovic O, Mutun S, Panzavolta T, Paulin M, Riba-Flinch JM, Simov N, Sotirovski K, Vasilciuc S, Zúbrik M, and Schueler S

Subjects
Europe, Animals, Ecosystem, Heteroptera, Animal Distribution, Climate Change, Quercus, Introduced Species
Abstract

In recent years, the oak lace bug, Corythucha arcuata, has emerged as a significant threat to European oak forests. This species, native to North America, has in the last two decades rapidly extended its range in Europe, raising concerns about its potential impact on the continent's invaluable oak populations. To address this growing concern, we conducted an extensive study to assess the distribution, colonization patterns, and potential ecological niche of the oak lace bug in Europe. We gathered 1792 unique presence coordinates from 21 Eurasian countries, utilizing diverse sources such as research observations, citizen science initiatives, GBIF database, and social media reports. To delineate the realized niche and future distribution, we employed an ensemble species distribution modelling (SDM) framework. Two future greenhouse gas scenarios (RCP 4.5 and RCP 8.5) were considered across three-time intervals (2021-2040, 2061-2080, and 2081-2100) to project and evaluate the species' potential distribution in the future. Our analysis revealed that significant hotspots rich in host species occurrence for this invasive insect remain uninvaded so far, even within its suitable habitat. Furthermore, the native ranges of Turkey oak (Quercus cerris L.) and Hungarian oak (Quercus frainetto L.) species offer entirely suitable environments for the oak lace bug. In contrast, the pedunculate oak and sessile oak distribution ranges currently show only 40 % and 50 % suitability for colonization, respectively. However, our predictive models indicate a significant transformation in the habitat suitability of the oak lace bug, with suitability for these two oak species increasing by up to 90 %. This shift underlines an evolving landscape where the oak lace bug may exploit more of its available habitats than initially expected. It emphasises the pressing need for proactive measures to manage and stop its expanding presence, which may lead to a harmful impact on the oak population across the European landscape., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Published
2024
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36. Taxonomic review of the grasshopper genus Pteropera Karsch, 1891 (Orthoptera, Acrididea, Catantopinae) with description of three new species and a preliminary phylogeny of the Cameroonian species.

Author

Yetchom Fondjo JA, Nzoko Fiemapong AR, Tindo M, Duressa TF, Ivković S, and Husemann M

Abstract

The Afrotropical grasshopper genus Pteropera Karsch, 1891, is reviewed. Some species present in Cameroon are described, Pteroperaaugustini Donskoff, 1981, is recorded for the first time in the country, and three new species are described from Cameroon, Pteroperakennei Yetchom & Husemann, sp. nov. , Pteroperamatzkei Yetchom & Husemann, sp. nov. and Pteroperamissoupi Yetchom & Husemann, sp. nov. , increasing the number of Pteropera species in Cameroon from eight to 12, and overall to 30 species in Central Africa. An updated key of Pteropera is provided. Photographs with data on the distributions of all known species are given. In addition, a phylogenetic tree was constructed using maximum likelihood and Bayesian inference on the basis of a concatenated dataset of COI, 16S, and 12S markers of available Cameroonian species. The maximum likelihood and Bayesian inference analyses of the concatenated datasets resulted in a well-resolved phylogeny of the group and species of Pteropera were recovered as monophyletic, largely with high support. In all cases, the discrimination of all studied species based on barcode information was congruent with the species limits determined by traditional taxonomy. Our findings show the potential of integrative taxonomy to resolve the relationships among grasshoppers below the family level. Further analyses, including more comprehensive taxon sampling and additional nuclear markers, are needed, and the occurrence of several taxa still needs to be confirmed in African rainforests., Competing Interests: The authors have declared that no competing interests exist., (Jeanne Agrippine Yetchom Fondjo, Armand Richard Nzoko Fiemapong, Maurice Tindo, Tarekegn Fite Duressa, Slobodan Ivković, Martin Husemann.)

Published
2024
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37. Ice cage: new records and cryptic, isolated lineages in wingless snow flies (Diptera, Limoniidae: Chionea spp.) in German lower mountain ranges.

Author

Klesser R, Blick T, Fritze MA, Marten A, Hemauer M, Kastner L, Höfer H, Jäger G, and Husemann M

Subjects
Male, Animals, Phylogeny, Ice, Genetic Variation, Snow, Diptera genetics
Abstract

In Earth's history warm and cold periods have alternated. Especially, during the Pleistocene, the alternation between these different climatic conditions has led to frequent range expansions and retractions of many species: while thermophilic species dispersed during warm periods, cold adapted species retracted to cold refugia and vice versa. After the last Pleistocene cycle many cold adapted taxa found refuges in relict habitats in mountain ranges. One example for such a cold adapted relict is the flightless snow fly Chionea araneoides (Dalman, 1816). It can be found in lower mountain ranges of Central Europe exclusively in stone runs and stony accumulations which provide cold microclimates. Imagines develop only in winter. They have strongly restricted ranges and hence experienced strong isolation predicting that local populations may show local adaptation and hence also genetic differentiation. We investigated this for several middle mountain ranges of Germany using the COI barcoding gene. Our analyses revealed two distinct lineages, one in the Bavarian Forest and a second one in all other more northern locations up to Scandinavia. These lineages likely go back to post-Pleistocene isolation and should be studied in more detail in the future, also to confirm the taxonomic status of both lineages. Further, we confirmed former records of the species for Germany and report new records for the federal states of Saxony, Lower Saxony, Saxony-Anhalt and Thuringia. Finally, we provide the first evidence of two types of males for the species, a small and a larger male type., (© 2024. The Author(s).)

Published
2024
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38. Barcoding Fails to Delimit Species in Mongolian Oedipodinae (Orthoptera, Acrididae).

Author

Kock LS, Körs E, Husemann M, Davaa L, and Dey LS

Abstract

Mongolia, a country in central Asia, with its vast grassland areas represents a hotspot for Orthoptera diversity, especially for the Acrididae. For Mongolia, 128 Acrididae species have been documented so far, of which 41 belong to the subfamily Oedipodinae (band-winged grasshoppers). Yet, few studies concerning the distribution and diversity of Oedipodinae have been conducted in this country. Molecular genetic data is almost completely absent, despite its value for species identification and discovery. Even, the simplest and most used data, DNA barcodes, so far have not been generated for the local fauna. Therefore, we generated the first DNA barcode data for Mongolian band-winged grasshoppers and investigated the resolution of this marker for species delimitation. We were able to assemble 105 DNA barcode (COI) sequences of 35 Oedipodinae species from Mongolia and adjacent countries. Based on this data, we reconstructed maximum likelihood and Bayesian inference phylogenies. We, furthermore, conducted automatic barcode gap discovery and used the Poisson tree process (PTP) for species delimitation. Some resolution was achieved at the tribe and genus level, but all delimitation methods failed to differentiate species by using the COI region. This lack of resolution may have multiple possible reasons, which likely differ between taxa: the lack of resolution in the Bryodemini may be partially explained by their massive genomes, implying the potential presence of large numbers of pseudogenes, while within the Sphingonotini incomplete lineage sorting and incorrect taxonomy are more likely explanations for the lack of signal. Further studies based on a larger number of gene fragments, including nuclear DNA, are needed to distinguish the species also at the molecular level., Competing Interests: The authors declare no conflicts of interest.

Published
2024
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39. A miniaturized mode-of-action profiling platform enables high throughput characterization of the molecular and cellular dynamics of EZH2 inhibition.

Author

Falkenstern L, Georgi V, Bunse S, Badock V, Husemann M, Roehn U, Stellfeld T, Fitzgerald M, Ferrara S, Stöckigt D, Stresemann C, Hartung IV, and Fernández-Montalván A

Subjects
Humans, Benzamides, Biphenyl Compounds, Enzyme Inhibitors pharmacology, Enzyme Inhibitors therapeutic use, Morpholines, Enhancer of Zeste Homolog 2 Protein antagonists & inhibitors, Enhancer of Zeste Homolog 2 Protein metabolism, Pyridones therapeutic use
Abstract

The market approval of Tazemetostat (TAZVERIK) for the treatment of follicular lymphoma and epithelioid sarcoma has established "enhancer of zeste homolog 2" (EZH2) as therapeutic target in oncology. Despite their structural similarities and common mode of inhibition, Tazemetostat and other EZH2 inhibitors display differentiated pharmacological profiles based on their target residence time. Here we established high throughput screening methods based on time-resolved fluorescence energy transfer, scintillation proximity and high content analysis microscopy to quantify the biochemical and cellular binding of a chemically diverse collection of EZH2 inhibitors. These assays allowed to further characterize the interplay between EZH2 allosteric modulation by methylated histone tails (H3K27me3) and inhibitor binding, and to evaluate the impact of EZH2's clinically relevant mutant Y641N on drug target residence times. While all compounds in this study exhibited slower off-rates, those with clinical candidate status display significantly slower target residence times in wild type EZH2 and disease-related mutants. These inhibitors interact in a more entropy-driven fashion and show the most persistent effects in cellular washout and antiproliferative efficacy experiments. Our work provides mechanistic insights for the largest cohort of EZH2 inhibitors reported to date, demonstrating that-among several other binding parameters-target residence time is the best predictor of cellular efficacy., (© 2024. The Author(s).)

Published
2024
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40. The Genomics of Isolated Populations of Gampsocleis glabra (Orthoptera: Tettigoniidae) in Central and Western Europe.

Author

Hawlitschek O, Bruns C, Dey LS, Nuhlíčková S, Felix R, van Kleef H, Nakel J, and Husemann M

Abstract

Habitat destruction and fragmentation are among the major current threats to global biodiversity. Fragmentation may also affect species with good dispersal abilities. We study the heath bushcricket Gampsocleis glabra , a specialist of steppe-like habitats across Europe that are highly fragmented, investigating if these isolated populations can be distinguished using population genomics and if there are any traces of admixture or dispersal among them. We try to answer these questions using genome-wide SNP data generated with ddRAD sequencing. We calculated F-statistics and visualized differentiation using STRUCTURE plots. While limited by the difficulty of sampling this threatened species, our results show that all populations except one that was represented by a singleton were clearly distinct, with pairwise F ST values between 0.010 and 0.181. STRUCTURE indicated limited but visible admixture across most populations and probably also an exchange of individuals between populations of Germany and The Netherlands. We conclude that in G. glabra , a certain amount of gene flow has persisted, at least in the past, also among populations that are isolated today. We also detect a possibly more recent dispersal event between a population in The Netherlands and one in Germany, which may be human aided. We suggest that the conservation of larger populations should be maintained, that efforts should be taken to restore abandoned habitat, that the preservation even of small habitat fragments may be beneficial for the conservation of this species, and that these habitats should be regularly monitored for possible (re-)colonization.

Published
2023
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41. Metabarcoding reveals that mixed forests mitigate negative effects of non-native trees on canopy arthropod diversity.

Author

Wildermuth B, Seifert CL, Husemann M, and Schuldt A

Subjects
Animals, Biodiversity, Germany, Herbivory, Arthropods, Picea, Tracheophyta, Fagus, Pseudotsuga
Abstract

Averting climate change-induced forest diebacks increasingly relies on tree species planted outside of their natural range and on the addition of non-native tree species to mixed-species forests. However, the consequences of such changes for associated biodiversity remain poorly understood, especially for the forest canopy as a largely understudied forest stratum. Here, we used flight interception traps and a metabarcoding approach to study the taxonomic and functional (trophic guilds) composition and taxon richness of canopy arthropods. We sampled 15 monospecific and mixed stands of native European beech, native Norway spruce-planted outside its natural range-and non-native Douglas fir in northwest Germany. We found that the diversity of arthropods was lower in non-native Douglas fir compared with native beech stands. Taxon richness of herbivores was reduced by both conifer species. Other functional guilds, however, were not affected by stand type. Arthropod composition differed strongly between native broadleaved beech and monospecific coniferous (native spruce or non-native Douglas fir) stands, with less pronounced differences between the native and non-native conifers. Beech-conifer mixtures consistently hosted intermediate arthropod diversity and community composition compared with the respective monospecific stands. Moreover, arthropod diversity had a positive relationship with the number of canopy microhabitats. Our study shows that considering arthropod taxa of multiple functional groups reveals the multifaceted impact of non-native tree species on forest canopy arthropod communities. Contrasting with previous studies that primarily focused on the forest floor, we found that native beech hosts a rich diversity of arthropods, compared with lower diversity and distinct communities in economically attractive, and especially in non-native, conifers with few canopy microhabitats. Broadleaf-conifer mixtures did not perform better than native beech stands, but mitigated the negative effects of conifers, making such mixtures a compromise to foster both forest-associated diversity and economic yield., (© 2023 The Authors. Ecological Applications published by Wiley Periodicals LLC on behalf of The Ecological Society of America.)

Published
2023
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42. Evolution of mitogenomic gene order in Orthoptera.

Author

Gaugel SM, Hawlitschek O, Dey LS, and Husemann M

Subjects
Animals, Phylogeny, Gene Order, Genomics, Evolution, Molecular, Mitochondria genetics, Gryllidae
Abstract

Mitochondrial gene order has contributed to the elucidation of evolutionary relationships in several animal groups. It generally has found its application as a phylogenetic marker for deep nodes. Yet, in Orthoptera limited research has been performed on the gene order, although the group represents one of the oldest insect orders. We performed a comprehensive study on mitochondrial genome rearrangements (MTRs) within Orthoptera in the context of mitogenomic sequence-based phylogeny. We used 280 published mitogenome sequences from 256 species, including three outgroup species, to reconstruct a molecular phylogeny. Using a heuristic approach, we assigned MTR scenarios to the edges of the phylogenetic tree and reconstructed ancestral gene orders to identify possible synapomorphies in Orthoptera. We found all types of MTRs in our dataset: inversions, transpositions, inverse transpositions, and tandem-duplication/random loss events (TDRL). Most of the suggested MTRs were in single and unrelated species. Out of five MTRs which were unique in subgroups of Orthoptera, we suggest four of them to be synapomorphies; those were in the infraorder Acrididea, in the tribe Holochlorini, in the subfamily Pseudophyllinae, and in the two families Phalangopsidae and Gryllidae or their common ancestor (leading to the relationship ((Phalangopsidae + Gryllidae) + Trigonidiidae)). However, similar MTRs have been found in distant insect lineages. Our findings suggest convergent evolution of specific mitochondrial gene orders in several species, deviant from the evolution of the mitogenome DNA sequence. As most MTRs were detected at terminal nodes, a phylogenetic inference of deeper nodes based on MTRs is not supported. Hence, the marker does not seem to aid resolving the phylogeny of Orthoptera, but adds further evidence for the complex evolution of the whole group, especially at the genetic and genomic levels. The results indicate a high demand for more research on patterns and underlying mechanisms of MTR events in Orthoptera., (© 2023 The Authors. Insect Molecular Biology published by John Wiley & Sons Ltd on behalf of Royal Entomological Society.)

Published
2023
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43. An identification key to the genera and species of Afrotropical Tetrigini (genera Paratettix, Leptacrydium, Hedotettix, Rectitettix nov. gen., and Alienitettix nov.gen.) with general remarks on the taxonomy of Tetrigini (Orthoptera, Tetrigidae).

Author

Devriese H, Nguyen E, and Husemann M

Abstract

The Afrotropical species hitherto considered to belong to the genera Paratettix Bolivar, 1887, Leptacrydium Chopard, 1950 and Hedotettix Bolivar, 1887 are reviewed, and two new genera, Alienitettix nov. gen. and Rectitettix nov. gen., are established. Four new species are described: Alienitettix usambarensis nov. sp., Leptacrydium femurcrassum nov. sp., Leptacrydium rhombeum nov. sp. and Rectitettix burri nov. sp. Several new combinations are created: Alienitettix gilloni (Günther, 1979) nov. comb. for Paratettix gilloni, Alienitettix villiersi (Günther, 1979) nov. comb. for Paratettix villiersi, Hippodes abidjanensis (Günther, 1979) nov. comb. for Coptotettix abidjanensis, Leptacrydium nanum (Bruner, 1910) nov. comb. for Tetrix nanus and Paratettix royi (Günther, 1979) nov. comb. for Leptacrydium royi. Paratettix angustivertex Bolivar, 1908 is resurrected. It is discussed whether the North American Tetrix arenosa (Burmeister, 1838) belongs to Tetrix and Tetrigini. The following synonyms are established: Coptotettix annulipes Karsch, 1890 nov. syn. and C. convexus Hancock, 1910 nov. syn. = C. rufipes Bolivar, 1887; Paratettix asbenensis Chopard, 1950 nov. syn. = P. pallipes (Walker, 1871); Telmatettix burri Hancock, 1900 nov.syn. and Paratettix macrostenus Günther, 1979 nov. syn. = Paratettix subpustulatus (Walker, 1871); Paratettix chopardi Günther, 1979 nov. syn. = P. africanus Bolivar, 1908; Paratettix marshalli Hancock, 1908 nov. syn. = Paratettix scaber (Thunberg, 1815); Paratettix obtusipulvillus Günther, 1979 nov. syn. = Paratettix spretus Günther, 1979; and Tettix waelboecki Bolivar, 1908 nov. syn. = Leptacrydium gratiosum (Karsch, 1893). Identification keys for all species and pictures of the majority of species are presented. New country records are given. New definitions of the pronotal forms in Tetrigidae are established based on their relationship to the fore (elytra) and hind wings (alae), with a new form, the pauropronotal, being introduced for the form where the fully functional hind wings are clearly longer than the pronotum; the new form is apomorphous for the Afrotropical Tetrigini. A provisional diagnosis for the (Afrotropical) Tetrigini is given. Coptotettix Bolivar, 1887 is removed from the Tetrigini and placed near Thoradontini and Criotettigini.

Published
2023
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44. Revision of the Metarbelodes Strand, 1909 genus-group(Lepidoptera: Cossoidea: Metarbelidae) with descriptions of two new genera and 33 new species from high elevations of eastern and southern Africa.

Author

Lehmann I, Zahiri R, and Husemann M

Subjects
Animals, Africa, Southern, Lepidoptera
Abstract

The African genus-group Metarbelodes Strand, 1909 of the family Metarbelidae comprises three genera: the monotypic Metarbelodes; Zambezia, gen. nov. with five new species (i.e., Zambezia diredaouaensis sp. nov.; Zambezia madambae sp. nov.; Zambezia jennyhuntae sp. nov.; Zambezia durrellbarnesi sp. nov.; Zambezia darrelplowesi sp. nov.); and Lukeniana, gen. nov. with 28 new species (i.e., Lukeniana enaiposha sp. nov.; Lukeniana raymondrevellii sp. nov.; Lukeniana rajaeii sp. nov.; Lukeniana tubiraensis sp. nov.; Lukeniana lutztoepferi sp. nov.; Lukeniana madrandelei sp. nov.; Lukeniana friederikebauerae sp. nov.; Lukeniana chapmani sp. nov.; Lukeniana michaelgrzimeki sp. nov.; Lukeniana kammeri sp. nov.; Lukeniana timdavenporti sp. nov.; Lukeniana mzuzuensis sp. nov.; Lukeniana mbalaensis sp. nov.; Lukeniana robplowesi sp. nov.; Lukeniana hausmanni sp. nov.; Lukeniana lenzi sp. nov.; Lukeniana stueningi sp. nov.; Lukeniana utaheidenreichae sp. nov.; Lukeniana georgeadamsoni sp. nov.; Lukeniana mikerobertsi sp. nov.; Lukeniana andreashempi sp. nov.; Lukeniana kakamegaensis sp. nov.; Lukeniana jankiellandi sp. nov.; Lukeniana bergsteni sp. nov.; Lukeniana carolae sp. nov.; Lukeniana stevecollinsi sp. nov.; Lukeniana butleri sp. nov.; Lukeniana kollhorsti sp. nov.), plus Lukeniana obliqualinea (Bethune-Baker, 1909), new comb. Metarbelodes is recorded only from the Bvumba Mountains in eastern Zimbabwe; Zambezia is represented by one species in the northern escarpment of the Harar Plateau (East-Central Ethiopia) and four species on the Southern African Plateau and the adjacent Bvumba Mountains; and Lukeniana occurs near the northern edge of the Southern African Plateau, but primarily in areas associated with the East African Rift System (EARS; both the Western and Eastern Branch). We provide detailed descriptions and images of all species and the first identification key. This revision represents the first comprehensive taxonomic treatment of the group and provides the basis for future work on this rare and cryptic, but diverse group of moth.

Published
2023
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45. Afrosystolederus garmsi (Orthoptera, Tetrigidae), a new genus and species from Mount Gibi (Liberia) with remarks on Systolederus, Pseudosystolederus and Teredorus.

Author

Devriese H and Husemann M

Subjects
Animals, Liberia, Orthoptera
Abstract

A new genus, Afrosystolederus, and a new species, Afrosystolederus garmsi, are described from Mount Gibi in Liberia. This African genus is most similar to Pseudosystolederus Günther, 1939 from Africa and Madagascar and to some members of Systolederus Bolivar, 1887 from Asia. The taxonomic difficulties of genera and species with a narrow fastigium are discussed. Teredorus aztecus nov.comb. is transferred from the genus Paratettix Bolivar, 1887. It is proposed to transfer all Indo-Malayan species from Teredorus Hancock, 1907 to Systolederus Bolivar, 1887, resulting in 26 new combinations and six replacement names: Systolederus albimarginus (Zheng & Zhou, 1996) nov. comb., Systolederus bashanensis (Zheng, 1993) nov. comb., Systolederus bhattacharyi (Shishodia, 1991) nov. comb., Systolederus bidentatus (Zheng, Huo & Zhang, 2000) nov. comb., Systolederus bipulvillus (Zheng, 2006) nov. comb., Systolederus brachynotoides Zheng, Ou & Lin, 2012 nov. comb., Systolederus brachynotus (Zheng & Xu, 2010) nov. comb., Systolederus camurimarginus (Zheng, 1998) nov. comb., Systolederus carmichaeli (Hancock, 1915) nov. comb., Systolederus chiangraensis (Za, Wen, Kang & Hyde, 2016) nov.comb., Systolederus combfemorus (Za, Wen, Kang & Hyde, 2016) nov. comb., Systolederus ebenotus (Zheng & Li, 2001) nov. comb., Systolederus eurylobatus (Zheng, Shi & Mao, 2010) nov. comb., Systolederus flatimarginus (Zheng & Liang, 2000) nov. comb., Systolederus flavistrial (Zheng, 2006) nov. comb., Systolederus frontalis (Hancock, 1915) nov.comb., Systolederus guizhouensis (Zheng, 1993) nov. comb., Systolederus hainanensis (Zheng, 1993) nov. comb., Systolederus longipulvillus (Zheng, 1988) nov. comb., Systolederus nigropennis (Deng, Zheng & Lu, 2013) nov. comb., Systolederus parvipulvillus (Deng, Lei & Zheng, 2014) nov. comb., Systolederus prominemarginis (Zheng & Jiang, 1993) nov. comb., Systolederus taibeiensis (Zheng & Xu, 2010) nov. comb., Systolederus xishuiensis (Zheng, Li & Shi, 2003) nov. comb. , Systolederus wuyishanensis (Zheng, 1993) nov. comb., Systolederus lii Devriese nov. nom., Systolederus lini Devriese nov.nom., Systolederus oui Devriese nov. nom., Systolederus rongduensis Devriese nov. nom., Systolederus yuanlingensis Devriese nov. nom., Systolederus zhengi Devriese nov. nom.

Published
2023
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46. New estimates of genome size in Orthoptera and their evolutionary implications.

Author

Hawlitschek O, Sadílek D, Dey LS, Buchholz K, Noori S, Baez IL, Wehrt T, Brozio J, Trávníček P, Seidel M, and Husemann M

Subjects
Animals, Phylogeny, Genome Size, Biological Evolution, Genome, Insect, Orthoptera genetics, Grasshoppers genetics
Abstract

Animal genomes vary widely in size, and much of their architecture and content remains poorly understood. Even among related groups, such as orders of insects, genomes may vary in size by orders of magnitude-for reasons unknown. The largest known insect genomes were repeatedly found in Orthoptera, e.g., Podisma pedestris (1C = 16.93 pg), Stethophyma grossum (1C = 18.48 pg) and Bryodemella holdereri (1C = 18.64 pg). While all these species belong to the suborder of Caelifera, the ensiferan Deracantha onos (1C = 19.60 pg) was recently found to have the largest genome. Here, we present new genome size estimates of 50 further species of Ensifera (superfamilies Gryllidea, Tettigoniidea) and Caelifera (Acrididae, Tetrigidae) based on flow cytometric measurements. We found that Bryodemella tuberculata (Caelifera: Acrididae) has the so far largest measured genome of all insects with 1C = 21.96 pg (21.48 gBp). Species of Orthoptera with 2n = 16 and 2n = 22 chromosomes have significantly larger genomes than species with other chromosome counts. Gryllidea genomes vary between 1C = 0.95 and 2.88 pg, and Tetrigidae between 1C = 2.18 and 2.41, while the genomes of all other studied Orthoptera range in size from 1C = 1.37 to 21.96 pg. Reconstructing ancestral genome sizes based on a phylogenetic tree of mitochondrial genomic data, we found genome size values of >15.84 pg only for the nodes of Bryodemella holdereri / B. tuberculata and Chrysochraon dispar / Euthystira brachyptera. The predicted values of ancestral genome sizes are 6.19 pg for Orthoptera, 5.37 pg for Ensifera, and 7.28 pg for Caelifera. The reasons for the large genomes in Orthoptera remain largely unknown, but a duplication or polyploidization seems unlikely as chromosome numbers do not differ much. Sequence-based genomic studies may shed light on the underlying evolutionary mechanisms., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Hawlitschek et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Published
2023
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47. Genetic Variation and Population Structure of the Old World Bollworm Helicoverpa armigera (Hübner, 1808) (Lepidoptera: Noctuidae) in Ethiopia.

Author

Fite T, Tefera T, Husemann M, Getaneh G, and Villinger J

Subjects
Animals, Ethiopia, Genetic Variation, Haplotypes, Cytochromes b genetics, Moths genetics
Abstract

Helicoverpa armigera is one of the most destructive insect pests of economically valuable crops in the world. Despite its economic importance, the population genetic structure of this insect remains unexplored in Ethiopia. To investigate the genetic diversity and population structure of H. armigera, we sampled 170 individuals from 15 populations throughout Ethiopia. We sequenced a fragment of the mitochondrial cytochrome b (cyt b) gene and five exon-primed intron-crossing (EPIC) markers. Twenty cyt b haplotypes with low-to-moderate haplotype diversity (mean Hd = 0.537) and high nucleotide diversity (mean Pi = 0.00339) were identified. The most frequently observed and widely distributed cyt b haplotype was designated as Hap&#95;1 (67.058%), which is identical to sequences found across the globe. Tajima's D and Fu's F for the cyt b data were negative, supporting a model of population expansion. Within populations, a mean of 2.493 alleles/locus was recorded across the five EPIC loci, ranging from 1.200 to 3.600 alleles/locus. The highest mean effective number of alleles/population was 2.369 and the lowest was 1.178. The mean observed heterozygosity (HO) of the five loci (0-0.289; mean 0.104 ± 0.020) was lower than the expected heterozygosity (HE) (0.095-0.523; mean 0.258 ± 0.028). AMOVA detected significant genetic structure with 61% of the total molecular genetic variation of EPIC genotypes occurring between populations, suggesting a considerable degree of differentiation among populations. STRUCTURE analyses clustered the H. armigera populations into three distinct population groups but very low isolation by distance (R2 = 0.0132, P < 0.05)., (© The Author(s) 2022. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Published
2022
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48. Phylogeographic inference of Sumatran ranids bearing gastromyzophorous tadpoles with regard to the Pleistocene drainage systems of Sundaland.

Author

Arifin U, Smart U, Husemann M, Hertwig ST, Smith EN, Iskandar DT, and Haas A

Subjects
Animals, Anura genetics, Larva genetics, Phylogeny, Phylogeography, Biodiversity, Biological Evolution
Abstract

Rivers are known to act as biogeographic barriers in several strictly terrestrial taxa, while possibly serving as conduits of dispersal for freshwater-tolerant or -dependent species. However, the influence of river systems on genetic diversity depends on taxa-specific life history traits as well as other geographic factors. In amphibians, several studies have demonstrated that river systems have only minor influence on their divergence. Here, we assess the role of the paleodrainage systems of the Sunda region (with a focus on the island of Sumatra) in shaping the evolutionary history of two genera of frogs (Sumaterana and Wijayarana) whose tadpoles are highly dependent on cascading stream habitats. Our phylogenetic results show no clear association between the genetic diversification patterns of both anurans genera and the existence of paleodrainage systems. Time-calibrated phylogenies and biogeographical models suggest that these frogs colonized Sumatra and diversified on the island before the occurrence of the Pleistocene drainage systems. Both genera demonstrate phylogenetic structuring along a north-south geographic axis, the temporal dynamics of which coincide with the geological chronology of proto Sumatran and -Javan volcanic islands. Our results also highlight the chronic underestimation of Sumatran biodiversity and call for more intense sampling efforts on the island., (© 2022. The Author(s).)

Published
2022
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49. Transcriptomic data reveals nuclear-mitochondrial discordance in Gomphocerinae grasshoppers (Insecta: Orthoptera: Acrididae).

Author

Hawlitschek O, Ortiz EM, Noori S, Webster KC, Husemann M, and Pereira RJ

Subjects
Animals, Hybridization, Genetic, Mitochondria genetics, Phylogeny, Transcriptome, Grasshoppers genetics, Orthoptera genetics
Abstract

The phylogeny of many groups of Orthoptera remains poorly understood. Previous phylogenetic studies largely restricted to few mitochondrial markers found many species in the grasshopper subfamily Gomphocerinae to be para- or polyphyletic, presumably because of incomplete lineage sorting and ongoing hybridization between putatively young lineages. Resolving the phylogeny of the Chorthippus biguttulus species complex is important because many morphologically cryptic species occupy overlapping ranges across Eurasia and serve important ecological functions. We investigated whether multispecies coalescent analysis of 540 genes generated by transcriptome sequencing could resolve the phylogeny of the C. biguttulus complex and related Gomphocerinae species. Our divergence time estimates confirm that Gomphocerinae is a very young radiation, with an age estimated at 1.38 (2.35-0.77) mya for the C. biguttulus complex. Our estimated topology based on complete mitogenomes recovered some species as para- or polyphyletic. In contrast, the multispecies coalescent based on nuclear genes retrieved all species as monophyletic clusters, corroborating most taxonomic hypotheses. Our results underline the importance of using nuclear multispecies coalescent methods for studying young radiations and highlight the need of further taxonomic revision in Gomphocerinae grasshoppers., (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)

Published
2022
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50. Taxonomic review of the genus Thalpomena Saussure, 1884 with new synonyms.

Author

Dey LS, Hochkirch A, Moussi A, Seidel M, and Husemann M

Subjects
Animal Distribution, Animals, Grasshoppers
Abstract

The genus Thalpomena Saussure, 1884 is distributed in North Africa, Somalia and Ethiopia. It currently contains nine species, including one species with four subspecies; Seven of them (including one with four subspecies) are distributed in the Atlas Mountains, one in Libya and one (originally described in the genus Vosseleria) in the Somali Highlands. In this study, we propose taxonomic changes based on morphological, genetic, ecological and morphometric data from a previous study. The following species remain valid: Thalpomena algeriana (Lucas, 1849); Thalpomena azureipennis Uvarov, 1927; Thalpomena coerulescens Uvarov, 1923; Thalpomena dernensis (Werner, 1908); and Thalpomena viridipennis Uvarov, 1927. The following names are proposed here as junior synonyms of T. algeriana: Thalpomena algeriana intermedia Dirsh, 1949 (new synonym), Thalpomena algeriana montana Dirsh, 1949 (new synonym), Thalpomena coeruleipennis Finot, 1895 (new synonym), Thalpomena deserta Dirsh, 1949 (new synonym). Thalpomena rungsi Dirsh, 1949 is a new synonym of T. azureipennis; Thalpomena algeriana maroccana Dirsh, 1949 is a new synonym of T. viridipennis. The only East African representative of the genus, Thalpomena schulthessi (Uvarov, 1923), is transferred to the genus Vosseleriana (new combination).

Published
2022
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