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001-es BibID:	BIBFORM041674
Első szerző:	Molnár V. Attila (biológus, botanikus)
Cím:	Pollination mode predicts phenological response to climate change in terrestrial orchids : a case study from central Europe / Attila Molnár V., Jácint Tökölyi, Zsolt Végvári, Gábor Sramkó, József Sulyok, Zoltán Barta
Dátum:	2012
Megjegyzések:	1. Herbarium collections contain long-term data for a wide range of taxa and provide unique opportunitiesto evaluate the importance of life-history components in driving species-specific responsesto climate change. In this paper, we analyse the relationships between change in flowering dates andlife-history traits within a phylogenetic framework. The study is based on an extensive data set ofherbarium specimens of orchids collected in Hungary between 1837 and 2009, supplemented byrecent field observations (1980?2011).2. Of the 39 taxa investigated, 31 (79%) showed apparent advancement in mean flowering time.Among these, advancement was statistically significant in nine taxa. The rest (eight taxa) showednon-significant delays in flowering. Averaging across all taxa, flowering time advanced by 3 days(3.8% of flowering period) during the last 50 years compared with the period before 1960. In taxashowing significant advancement, flowering times advanced by 7.7 days (8.6% of the flowering period).The most extreme advancement was 13.9 days.3. Multivariate models were used to evaluate ways in which life history may affect phenologicalresponses to climate change. Pollination mode (i.e. deceptive vs. rewarding vs. autogamous), lifespan (i.e. short-lived vs. long-lived), biogeographical distribution type (i.e. Mediterranean vs. non-Mediterranean) and flowering time (i.e. mean date of blooming) emerged as important factors thatinfluence changes in flowering through time. Phylogenetic relatedness did not predict phenologicalresponse. The strongest response was observed in orchids that flower relatively early in spring, exhibitan autogamous or deceptive pollination mechanism, have a long life span and possess a Mediterraneancentre of distribution.4. Synthesis. Our investigation demonstrates that the majority of Hungarian orchids have shiftedtheir yearly mean flowering to earlier dates during the past 50 years. Certain life-history traits, butnot phylogenetic relatedness, were found to be important in predicting climatic responsiveness inEuropean terrestrial orchids.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban biological collections flowering time global change herbarium specimens life history life span Orchidaceae phenological shift phylogenetic control plant-climate interactions pollinator
Megjelenés:	Journal of Ecology 100 : 5 (2012), p. 1141-1152. -
További szerzők:	Tökölyi Jácint (1984-) (biológus) Végvári Zsolt (1969-) (biológus) Sramkó Gábor (1981-) (biológus) Sulyok József Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:	MTA-DE Lendület MTA Viselkedésökológiai Kutatócsoport
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM096002
035-os BibID:	(WoS)000574813200005 (Scopus)85087742888
Első szerző:	Sebestyén Flóra (biológus)
Cím:	Age-dependent plasticity in reproductive investment, regeneration capacity and survival in a partially clonal animal (Hydra oligactis) / Flóra Sebestyén, Máté Miklós, Katalin Iván, Jácint Tökölyi
Dátum:	2020
ISSN:	0021-8790
Megjegyzések:	1. Asexual reproduction diversifies life-history priorities and is associated with unusual reproduction and somatic maintenance patterns, such as constant fertility with age, extensive regeneration ability and negligible senescence. While agedependent plasticity in relative allocation to sexual versus asexual reproductive modes is relatively well studied, the modulation of somatic maintenance traits in parallel with age-dependent reproduction is much less well understood in clonal or partially clonal animals. 2. Here, we asked how age-dependent investment into sexual and asexual reproduction co-varies with somatic maintenance such as regeneration in a partially clonal freshwater cnidarian Hydra oligactis, a species with remarkable regeneration abilities and experimentally inducible sex. 3. We induced gametogenesis by lowering temperature at two ages, 1 or 4 weeks after detachment from an asexual parent, in animals of a male and a female clone.Then we measured phenotypically asexual and sexual reproductive traits (budding rate, start day and number of sexual organs) together with head regeneration rate, survival and the cellular background of these traits (number of reproductive and interstitial stem cells) for 2 or 5 months. 4. Younger animals had higher asexual reproduction while individuals in the older group had more intensive gametogenesis and reproductive cell production. In parallel with these age-dependent reproductive differences, somatic maintenance of older individuals was also impacted: head regeneration, survival and interstitial stem cell numbers were reduced compared to younger polyps. Some of the traits investigated showed an ontogenetic effect, suggesting that age-dependent plasticity and a fixed ontogenetic response might both contribute to differences between age groups. 5. We show that in H. oligactis asexual reproduction coupled with higher somatic maintenance is prioritized earlier in life, while sexual reproduction with higher maintenance costs occurs later if sex is induced. These findings confirm generallife-history theory predictions on resource allocation between somatic maintenance and sexual reproduction applying in a partially clonal species. At the same time, our study also highlights the age-dependent integration of these resource allocation decisions with sexual/asexual strategies. Accounting for age-related differences might enhance repeatability of research done with clonal individuals derived from mass cultures.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk eco-evo-devo partial clonality phenotypic plasticity regeneration resource allocation senescence sexual investment stem cells
Megjelenés:	Journal Of Animal Ecology. - 89 : 10 (2020), p. 2246-2257. -
További szerzők:	Miklós Máté (1994-) (biológus) Iván Katalin Tökölyi Jácint (1984-) (biológus)
Pályázati támogatás:	NKFIH FK 124164 Egyéb ÚNKP-18- 3 Egyéb ÚNKP-19-3 Egyéb ÚNKP-19-4 Egyéb János Bolyai Research Scholarship of the Hungarian Academy of Sciences Egyéb EFOP-3.6.1-16-2016-00022 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM065350
Első szerző:	Sonkoly Judit (biológus)
Cím:	Higher seed number compensates for lower fruit set in deceptive orchids / Judit Sonkoly, Anna E. Vojtkó, Jácint Tökölyi, Péter Török, Gábor Sramkó, Zoltán Illyés, Attila Molnár V.
Dátum:	2016
ISSN:	0022-0477
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal Of Ecology. - 104 : 2 (2016), p. 343-351. -
További szerzők:	Vojtkó Anna, E. (1988-) (biológus) Tökölyi Jácint (1984-) (biológus) Török Péter (1979-) (biológus-ökológus) Sramkó Gábor (1981-) (biológus) Illyés Zoltán (1980-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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