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  1. AU="Bar, Adi"
  2. AU="Alvarado Pinedo, María F."
  3. AU="Scarlett, Garry"
  4. AU="Carlos G. Vanoye"
  5. AU=Lohrmann Jens
  6. AU="Petersen, Moritz"
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  27. AU=Cammack N
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  30. AU="Cullin, Christophe"
  31. AU="Georg K.S. Andersson"
  32. AU="Jeannel, Gaël-François"
  33. AU="Stuart Woods"
  34. AU="Shchegolev, A."
  35. AU="Nadeau, Pierre-Louis"
  36. AU="Gordon, David E A"
  37. AU="Shahid Mahmood"
  38. AU="Rosenblatt, Karin"
  39. AU="Dasgupta, Suvankar"
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  1. Artikel: Negative effects of fluctuating temperatures around the optimal temperature on reproduction and survival of the red flour beetle

    Scharf, Inon / Segal, Daniella / Bar, Adi / Gottlieb, Daphna

    Journal of thermal biology. 2022 Jan., v. 103

    2022  

    Abstract: Whereas the vast majority of animals in nature experience daily or seasonal thermal fluctuations, most laboratory experiments use constant temperatures. We examined the effect of fluctuating temperatures on reproduction and survival under starvation, two ...

    Abstract Whereas the vast majority of animals in nature experience daily or seasonal thermal fluctuations, most laboratory experiments use constant temperatures. We examined the effect of fluctuating temperatures on reproduction and survival under starvation, two important components of fitness. We used the red flour beetle as a model organism, which is a significant pest in grain mills around the world. Fluctuations around the optimal temperature were always negative for the adult survival under starvation. The effect of thermal fluctuations on the number of offspring reaching adulthood was negative as well but increased with the extent of exposure. It was the strongest when the adult parents were kept and the offspring were raised under fluctuating temperatures. However, the later the offspring were exposed to fluctuations during their development, the weaker the effect of fluctuating temperatures was. Moreover, raising the parents under fluctuating temperatures but keeping them after pupation at constant temperatures fully alleviated the negative effects of fluctuations on the offspring. Finally, we demonstrate that keeping the parents a few days under fluctuating temperatures is required to induce negative effects on the number of offspring reaching adulthood. Our study disentangles between the effects of thermal fluctuations experienced during the parental and offspring stage thus contributing to the ongoing research of insects under fluctuating temperatures.
    Schlagwörter Tribolium castaneum ; adulthood ; adults ; pests ; progeny ; pupation ; reproduction ; starvation ; temperature
    Sprache Englisch
    Erscheinungsverlauf 2022-01
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2021.103165
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel: Complex Effects of a Land-Use Gradient on Pollinators and Natural Enemies: Natural Habitats Mitigate the Effects of Aphid Infestation on Pollination Services.

    Shapira, Tal / Roth, Tohar / Bar, Adi / Coll, Moshe / Mandelik, Yael

    Insects

    2023  Band 14, Heft 11

    Abstract: Pollinators and natural enemies are essential ecosystem service providers influenced by land-use and by interactions between them. However, the understanding of the combined impacts of these factors on pollinator and natural enemy activities and their ... ...

    Abstract Pollinators and natural enemies are essential ecosystem service providers influenced by land-use and by interactions between them. However, the understanding of the combined impacts of these factors on pollinator and natural enemy activities and their ultimate effects on plant productivity remains limited. We investigated the effects of local and landscape vegetation characteristics and the presence of herbivorous pests on pollination and biological control services and their combined influence on phytometer seed set. The study was conducted in a Mediterranean agro-ecosystem, encompassing ten shrubland plots spanning a land-use gradient. Within each plot, we placed caged and uncaged potted phytometer plants that were either aphid-infested or aphid-free. We quantified insect flower visitation, aphid predation and parasitism rates, and fruit and seed set. We found scale-dependent responses of pollinators and natural enemies to land-use characteristics. Flower species richness had a positive impact on aphid parasitism rates but a negative effect on pollinator activity. Notably, we found a more pronounced positive effect of natural areas on pollinator activity in aphid-infested compared to aphid-free plants, indicating a potentially critical role of natural habitats in mitigating the adverse effects of aphid infestation on pollination services. These results highlight the complex and interactive effects of land-use on pollinators and natural enemies, with significant implications for plant productivity.
    Sprache Englisch
    Erscheinungsdatum 2023-11-13
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2662247-6
    ISSN 2075-4450
    ISSN 2075-4450
    DOI 10.3390/insects14110872
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Egg-Laying Behavior of

    Bar, Adi / Shalev, Lior / Scharf, Inon

    Biology

    2022  Band 11, Heft 12

    Abstract: Temperature and photoperiod are the two most important factors that affect all aspects of animal life. We conducted two experiments to examine the effect of temperature and photoperiod on egg laying and development in the desert ... ...

    Abstract Temperature and photoperiod are the two most important factors that affect all aspects of animal life. We conducted two experiments to examine the effect of temperature and photoperiod on egg laying and development in the desert ant
    Sprache Englisch
    Erscheinungsdatum 2022-11-25
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology11121714
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel: Negative effects of fluctuating temperatures around the optimal temperature on reproduction and survival of the red flour beetle.

    Scharf, Inon / Segal, Daniella / Bar, Adi / Gottlieb, Daphna

    Journal of thermal biology

    2021  Band 103, Seite(n) 103165

    Abstract: Whereas the vast majority of animals in nature experience daily or seasonal thermal fluctuations, most laboratory experiments use constant temperatures. We examined the effect of fluctuating temperatures on reproduction and survival under starvation, two ...

    Abstract Whereas the vast majority of animals in nature experience daily or seasonal thermal fluctuations, most laboratory experiments use constant temperatures. We examined the effect of fluctuating temperatures on reproduction and survival under starvation, two important components of fitness. We used the red flour beetle as a model organism, which is a significant pest in grain mills around the world. Fluctuations around the optimal temperature were always negative for the adult survival under starvation. The effect of thermal fluctuations on the number of offspring reaching adulthood was negative as well but increased with the extent of exposure. It was the strongest when the adult parents were kept and the offspring were raised under fluctuating temperatures. However, the later the offspring were exposed to fluctuations during their development, the weaker the effect of fluctuating temperatures was. Moreover, raising the parents under fluctuating temperatures but keeping them after pupation at constant temperatures fully alleviated the negative effects of fluctuations on the offspring. Finally, we demonstrate that keeping the parents a few days under fluctuating temperatures is required to induce negative effects on the number of offspring reaching adulthood. Our study disentangles between the effects of thermal fluctuations experienced during the parental and offspring stage thus contributing to the ongoing research of insects under fluctuating temperatures.
    Mesh-Begriff(e) Animals ; Coleoptera ; Female ; Longevity ; Male ; Reproduction ; Starvation ; Temperature
    Sprache Englisch
    Erscheinungsdatum 2021-12-18
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2021.103165
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Desert Ants Learn to Avoid Pitfall Traps While Foraging

    Bar, Adi / Marom, Chen / Zorin, Nikol / Gilad, Tomer / Subach, Aziz / Foitzik, Susanne / Scharf, Inon

    Biology. 2022 June 10, v. 11, no. 6

    2022  

    Abstract: Central-place foragers, such as social insects or nesting birds, repeatedly use the same routes from and to their nests when foraging for food. Such species forage more efficiently after accumulating experience. We examined, here, a relatively neglected ... ...

    Abstract Central-place foragers, such as social insects or nesting birds, repeatedly use the same routes from and to their nests when foraging for food. Such species forage more efficiently after accumulating experience. We examined, here, a relatively neglected aspect of such an improvement with experience—the avoidance of pitfall traps. Similar pits are built by antlions, which co-occur with the ants, but they also resemble other natural obstacles. We used the desert ant Cataglyphis niger, common in sandy habitats, and allowed it to forage for three successive runs for a food reward. Ant workers discovered food more slowly and in smaller numbers when pits were in their path. Pit presence also led to longer tracks by ants and slower movement. However, with experience, the ants fell into such pits less often and reached the food more quickly. To understand how past conditions affect current behavior, we investigated whether removing or adding pits led to a different result to that with a constant number of pits. Workers adjusted their behavior immediately when conditions changed. The only carryover effect was the longer tracks crossed by workers after pit removal, possibly resulting from the mismatch between the past and current conditions. Finally, the workers were more likely to fall into pits that were closer to the nest than those that were further away. This is a good example of the advantage that ambush predators can derive from ambushing their prey in specific locations.
    Schlagwörter Cataglyphis ; Myrmeleontidae ; crossing ; deserts ; foods ; forage ; foraging ; habitats ; insect nests ; learning ; nesting ; pitfall traps ; predators ; social insects ; worker ants
    Sprache Englisch
    Erscheinungsverlauf 2022-0610
    Erscheinungsort Multidisciplinary Digital Publishing Institute
    Dokumenttyp Artikel
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology11060897
    Datenquelle NAL Katalog (AGRICOLA)

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  6. Artikel: Desert Ants Learn to Avoid Pitfall Traps While Foraging.

    Bar, Adi / Marom, Chen / Zorin, Nikol / Gilad, Tomer / Subach, Aziz / Foitzik, Susanne / Scharf, Inon

    Biology

    2022  Band 11, Heft 6

    Abstract: Central-place foragers, such as social insects or nesting birds, repeatedly use the same routes from and to their nests when foraging for food. Such species forage more efficiently after accumulating experience. We examined, here, a relatively neglected ... ...

    Abstract Central-place foragers, such as social insects or nesting birds, repeatedly use the same routes from and to their nests when foraging for food. Such species forage more efficiently after accumulating experience. We examined, here, a relatively neglected aspect of such an improvement with experience-the avoidance of pitfall traps. Similar pits are built by antlions, which co-occur with the ants, but they also resemble other natural obstacles. We used the desert ant
    Sprache Englisch
    Erscheinungsdatum 2022-06-10
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology11060897
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel: The combined role of visual and olfactory cues in foraging by

    Gilad, Tomer / Bahar, Ori / Hasan, Malak / Bar, Adi / Subach, Aziz / Scharf, Inon

    Current zoology

    2022  Band 69, Heft 4, Seite(n) 401–408

    Abstract: Foragers use several senses to locate food, and many animals rely on vision and smell. It is beneficial not to rely on a single sense, which might fail under certain conditions. We examined the contribution of vision and smell to foraging and maze ... ...

    Abstract Foragers use several senses to locate food, and many animals rely on vision and smell. It is beneficial not to rely on a single sense, which might fail under certain conditions. We examined the contribution of vision and smell to foraging and maze exploration under laboratory conditions using
    Sprache Englisch
    Erscheinungsdatum 2022-08-05
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2628880-1
    ISSN 1674-5507
    ISSN 1674-5507
    DOI 10.1093/cz/zoac058
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Ribosomal protein L24 mediates mammalian microRNA processing in an evolutionarily conserved manner.

    Tzur, Yonat / Dubnov, Serafima / Madrer, Nimrod / Bar, Adi / Nadorp, Bettina / Mishra, Nibha / Heppenstall, Paul / Bennett, Estelle R / Greenberg, David S / Winek, Katarzyna / Soreq, Hermona

    Cellular and molecular life sciences : CMLS

    2024  Band 81, Heft 1, Seite(n) 55

    Abstract: To investigate the mechanism(s) underlying the expression of primate-specific microRNAs (miRs), we sought DNA regulatory elements and proteins mediating expression of the primate-specific hsa-miR-608 (miR-608), which is located in the SEMA4G gene and ... ...

    Abstract To investigate the mechanism(s) underlying the expression of primate-specific microRNAs (miRs), we sought DNA regulatory elements and proteins mediating expression of the primate-specific hsa-miR-608 (miR-608), which is located in the SEMA4G gene and facilitates the cholinergic blockade of inflammation by targeting acetylcholinesterase mRNA. 'Humanized' mice carrying pre-miR-608 flanked by 250 bases of endogenous sequences inserted into the murine Sema4g gene successfully expressed miR-608. Moreover, by flanking miR-608 by shortened fragments of its human genome region we identified an active independent promoter within the 150 nucleotides 5' to pre-miR-608, which elevated mature miR-608 levels by 100-fold in transfected mouse- and human-originated cells. This highlighted a regulatory role of the 5' flank as enabling miR-608 expression. Moreover, pull-down of the 150-base 5' sequence revealed its interaction with ribosomal protein L24 (RPL24), implicating an additional mechanism controlling miR-608 levels. Furthermore, RPL24 knockdown altered the expression of multiple miRs, and RPL24 immunoprecipitation indicated that up- or down-regulation of the mature miRs depended on whether their precursors bind RPL24 directly. Finally, further tests showed that RPL24 interacts directly with DDX5, a component of the large microprocessor complex, to inhibit miR processing. Our findings reveal that RPL24, which has previously been shown to play a role in miR processing in Arabidopsis thaliana, has a similar evolutionarily conserved function in miR biogenesis in mammals. We thus characterize a novel extra-ribosomal role of RPL24 in primate miR regulation.
    Mesh-Begriff(e) Animals ; Humans ; Mice ; Acetylcholinesterase ; MicroRNAs/genetics ; Primates ; Ribosomal Proteins/genetics
    Chemische Substanzen Acetylcholinesterase (EC 3.1.1.7) ; MicroRNAs ; ribosomal protein L24 ; Ribosomal Proteins
    Sprache Englisch
    Erscheinungsdatum 2024-01-23
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 1358415-7
    ISSN 1420-9071 ; 1420-682X
    ISSN (online) 1420-9071
    ISSN 1420-682X
    DOI 10.1007/s00018-023-05088-w
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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