TY  - JOUR
AU  - Huang, Hongwei
AU  - Zhang, Zhixin
AU  - Bede-Fazekas, Ákos
AU  - Mammola, Stefano
AU  - Gu, Jiqi
AU  - Zhou, Jinxin
AU  - Qu, Junmei
AU  - Lin, Qiang
TI  - Cross‐validation matters in species distribution models: a case study with goatfish species
JF  - ECOGRAPHY
J2  - ECOGRAPHY
PY  - 2024
SN  - 0906-7590
DO  - 10.1111/ecog.07354
UR  - https://m2.mtmt.hu/api/publication/35319036
ID  - 35319036
AB  - In an era of ongoing biodiversity, it is critical to map biodiversity patterns in space and time for better‐informing conservation and management. Species distribution models (SDMs) are widely applied in various types of such biodiversity assessments. Cross‐validation represents a prevalent approach to assess the discrimination capacity of a target SDM algorithm and determine its optimal parameters. Several alternative cross‐validation methods exist; however, the influence of choosing a specific cross‐validation method on SDM performance and predictions remains unresolved. Here, we tested the performance of random versus spatial cross‐validation methods for SDM using goatfishes (Actinopteri: Syngnathiformes: Mullidae) as a case study, which are recognized as indicator species for coastal waters. Our results showed that the random versus spatial cross‐validation methods resulted in different optimal model parameterizations in 57 out of 60 modeled species. Significant difference existed in predictive performance between the random and spatial cross‐validation methods, and the two cross‐validation methods yielded different projected present‐day spatial distribution and future projection patterns of goatfishes under climate change exposure. Despite the disparity in species distributions, both approaches consistently suggested the Indo‐Australian Archipelago as the hotspot of goatfish species richness and also as the most vulnerable area to climate change. Our findings highlight that the choice of cross‐validation method is an overlooked source of uncertainty in SDM studies. Meanwhile, the consistency in richness predictions highlights the usefulness of SDMs in marine conservation. These findings emphasize that we should pay special attention to the selection of cross‐validation methods in SDM studies.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Kereszturi, Ákos
AU  - Biri, Sándor
AU  - Gyollai, Ildikó
AU  - Juhász, Zoltán
AU  - Király, Csilla
AU  - Rácz, Richárd Péter
AU  - Rezes, Dániel
AU  - Sulik, Béla
AU  - Szabó, Máté
AU  - Szalai, Zoltán
AU  - Szávai, Péter
AU  - Szklenár, Tamás
TI  - Raman spectroscopy analysis of artificial space weathering effects of NWA 10580 CO3 meteorite
JF  - METEORITICS & PLANETARY SCIENCE
J2  - METEORIT PLANET SCI
PY  - 2024
SN  - 1086-9379
DO  - 10.1111/maps.14255
UR  - https://m2.mtmt.hu/api/publication/35265304
ID  - 35265304
AB  - A medium‐grade, poorly weathered CO3‐type meteorite was subjected to artificial space weathering by 1 keV protons in three subsequent steps, with gradually increasing doses from 10 11 to 10 17 protons per cm 2 . The resulting mineral modifications were identified by Raman spectroscopy, with specific emphasis on main minerals such as olivine (bands: 817, 845 cm −1 ), pyroxene (1007 cm −1 ), and partly amorphous feldspar (509 cm −1 ), considering variation in band shift and bandwidth (full width at half maximum, FWHM). After the first and second irradiations, variable band position changes were observed, probably from metastable alterations by Mg loss of the minerals, while the third stronger irradiation showed band shift dominated by amorphization. The olivine and pyroxene show weak increase in FWHM after the first irradiation, while more changes happened after the second and third irradiations. The flux after the third irradiation was higher than in other works, caused stronger damage in crystal lattice, partly resembling to dimerization as described by shock metamorphism. The glassy feldspar was characterized by high FWHM values already at the beginning, indicating weak crystallinity already that become even less crystallized, thus their bands disappeared after the third irradiation. Bands of hydrous minerals (goethite clay, chlorite) were not visible after the third irradiation, confirming some earlier results in the literature. Based on our results, moderately fresh surfaces could show stochastic but small spectral differences compared to the fresh most meteorites by metastable mineral alterations. The interpretation of Raman spectra of heavily space‐weathered surfaces could further benefit from the joint evaluation of alteration induced by both shock impact alteration and space weathering.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Bede-Fazekas, Ákos
AU  - Somodi, Imelda
TI  - Precipitation and temperature timings underlying bioclimatic variables rearrange under climate change globally
JF  - GLOBAL CHANGE BIOLOGY
J2  - GLOBAL CHANGE BIOL
VL  - 30
PY  - 2024
IS  - 9
SN  - 1354-1013
DO  - 10.1111/gcb.17496
UR  - https://m2.mtmt.hu/api/publication/35264749
ID  - 35264749
AB  - Modeling how climate change may affect the potential distribution of species and communities typically utilizes bioclimatic variables. Distribution predictions rely on the values of the bioclimatic variable (e.g., precipitation of the wettest quarter). However, the ecological meaning of most of these variables depends strongly on the within‐year position of a specific climate period (SCP), for example, the wettest quarter of the year, which is often overlooked. Our aim was to determine how the within‐year position of the SCPs would shift (SCP shift) in reaction to climate change in a global context. We calculated the deviations of the future within‐year position of the SCPs relative to the reference period. We used four future time periods, four scenarios, and four CMIP6 global climate models (GCMs) to provide an ensemble of expectations regarding SCP shifts and locate the spatial hotspots of the shifts. Also, the size and frequency of the SCP shifts were subjected to linear models to evaluate the importance of the impact modeler's decision on time period, scenario, and GCM. We found ample examples of SCP shifts exceeding 2 months, with 6‐month shifts being predicted as well. Many areas in the tropics are expected to experience both temperature and precipitation‐related shifts, but precipitation‐related shifts are abundantly predicted for the temperate and arctic zones as well. The combined shifts at the Equator reinforce the likelihood of the emergence of no‐analogue climates there. The shifts become more pronounced as time and scenario progress, while GCMs could not be ranked in a clear order in this respect. For most SCPs, the modeler's decision on the GCM was the least important, while the choice of time period was typically more important than the choice of scenario. Future predictive distribution models should account for SCP shifts and incorporate the phenomenon in the modeling efforts.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Magyari, Enikő Katalin
AU  - Szabó, Zoltán
AU  - Falus, György
AU  - Móra, Arnold
AU  - Szalai, Zoltán
AU  - Hamerlik, L.
AU  - Tóth, Mónika
AU  - Farkas, Árpád
AU  - Pomogyi, Piroska
AU  - Somogyi, Boglárka
AU  - Vörös, Lajos
AU  - Korponai, János
TI  - Large shallow lake response to anthropogenic stressors and climate change: Missing macroinvertebrate recovery after oligotrophication (Lake Balaton, East-Central Europe)
JF  - SCIENCE OF THE TOTAL ENVIRONMENT
J2  - SCI TOTAL ENVIRON
VL  - 946
PY  - 2024
PG  - 18
SN  - 0048-9697
DO  - 10.1016/j.scitotenv.2024.174191
UR  - https://m2.mtmt.hu/api/publication/35218254
ID  - 35218254
N1  - Department of Environmental and Landscape Geography, Eötvös Loránd University, Pázmány Péter str. 1/C, Budapest, H-1117, Hungary            
            HUN-REN-MTM-ELTE Research group for Palaeontology, Pázmány Péter str. 1/C, Budapest, H-1117, Hungary            
            Mining and Geological Survey of Hungary, Columbus str. 17-23., Budapest, H-1145, Hungary            
            University of Pécs, Department of Hydrobiology, Ifjúság útja 6, Pécs, H-7624, Hungary            
            Geographical Institute, Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, Budapest, H-1112, Hungary            
            Matej Bel University, Faculty of Natural Sciences, Tajovskeho 40, Banská Bystrica, 97401, Slovakia            
            Institute of Zoology, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia            
            Balaton Limnological Research Institute, Klebelsberg Kuno utca 3., Tihany, H-8237, Hungary            
            HUN-REN ATOMKI, Bem tér 18/c, Debrecen, H-4026, Hungary            
            Mid-Transdanubian Water Directorate, Balatoni út 6, Székesfehérvár, H-8000, Hungary            
            HUN-REN Balaton Limnological Research Institute, Klebelsberg Kuno utca 3, Tihany, H-8237, Hungary            
            University of Public Service, Faculty of Water Sciences, Department of Water Supply and Sewerage, Bajcsy-Zsilinszky utca 12-14, Baja, H-6500, Hungary            
            Department of Environmental Science, Sapientia Hungarian University of Transylvania, Calea Turzii 4, Cluj-Napoca, 400193, Romania            
            Export Date: 13 September 2024            
            CODEN: STEVA            
            Correspondence Address: Magyari, E.K.; Eötvös Loránd University, Pázmány Péter stny. 1/c., Hungary; email: eniko.magyari@ttk.elte.hu
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Tombor, Eszter
AU  - Korponai, János
AU  - Szabó, Zoltán
AU  - Szalai, Zoltán
AU  - Kóbor, I
AU  - Magyari, Enikő Katalin
TI  - A sekély Pátkai-tározó ökológiai állapotváltozásainak nyomon követése az üledék árvaszúnyog-fauna (Diptera: Chironomidae) vizsgálata alapján
JF  - HIDROLÓGIAI KÖZLÖNY
J2  - HIDROL KOZL
VL  - 104
PY  - 2024
IS  - 3
SP  - 18
EP  - 29
PG  - 12
SN  - 0018-1323
DO  - 10.59258/hk.16460
UR  - https://m2.mtmt.hu/api/publication/35168952
ID  - 35168952
AB  - A Pátkai-tározót 1975-ben alakították ki a Velencei-tó vízellátásának szabályozására, de másodlagosan horgász-, illetve jóléti tóként is hasznosítják. A vízminőség a 90-es évektől drasztikusan leromlott valószínűsíthetően a mederkotrások elmaradása és a horgászok által vízbe szórt etetőanyag miatt, ezért a tározó csak korlátozottan alkalmas a Velencei-tó vízpótlására. Az Éghajlatváltozás Multidiszciplináris Nemzeti Laboratórium anyagi támogatásával megvalósuló projekt (RRF-2.3.1.-21-2022-00014) keretén belül a Közép-dunántúli Vízügyi Igazgatóság (KDTVIZIG) vízminőség javítását és algavirágzások visszaszorítását célzó terveinek megalkotásához szeretnénk hozzájárulni a tározóból vett rövid (54 cm) üledékfurat árvaszúnyog-faunájának vizsgálatával. A fauna nagy felbontású vizsgálatával feltárhatjuk a vízminőség időbeli alakulását és a tározó életének eddigi állomásait (leeresztés, algavirágzások). Az elemzés során mértük az üledék a-klorofill tartalmát (SPDU) és egyéb geokémiai változóit (TOC: összes szerves széntartalom, TbN: összes kötött nitrogéntartalom, C/N arány) is. A tározó árvaszúnyog-közösségének időbeli alakulását vizsgálva 3 zónát tudtunk elkülöníteni: a legalsó zóna faunája a tározó 1992-es leeresztésével és 1994-es visszatöltésével járó jelentős vízszintváltozásokat jelzi; a középső zónát jó oxigénellátottságot, de már mezotróf-eutróf viszonyokat jelző taxonok jellemzik; a legfelső zónát az oxigénhiányos állapotot és az eutróf-hipertróf közeget toleráló taxonok uralják. A futtatott főkomponens-analízis (PCA) egyes tengelye mentén a fajok trofitási tolerancia és oxigénigény alapján is elváltak. A vizsgált geokémiai változók közül a TOC, a TbN és az SPDU növekvő tendenciájú változása planktonikus eutrofizálódást jelezhet, amit a területileg illetékes vízügyi igazgatóság vízminőség-feltáró vizsgálatai is kimutattak. Eredményeink alapján a fauna átalakulásának fontos befolyásolói a különböző eredetű tápanyagdúsulások és a tározó 1992-es leeresztése. A Víz Keretirányelv alapján is jó minősítésű víz kiemelt fontosságú a tározóban, hiszen nemzetközi szinten is fontos nagytavunk, a Velencei-tó vízpótlásának szükségessége az elmúlt években szinte kivétel nélkül felmerült. Az árvaszúnyog-fauna összetétele alapján a vízminőség javítása feltétlen indokolt, mely a horgászat ésszerű keretek közt tartásával, a meder kotrásával, valamint a befolyó Császár-víz vízhozamának növelésével érhető el.
LA  - Hungarian
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Demeter, László
AU  - Kiš, Alen
AU  - Kemenes, Anna
AU  - Ulicsni, Viktor
AU  - Juhász, Erika Mária
AU  - Đapić, Marko
AU  - Bede-Fazekas, Ákos
AU  - Szabados, Klára
AU  - Öllerer, Kinga
AU  - Molnár, Zsolt
TI  - Uncovering the little known impact of a millennia-old traditional use of temperate oak forests: free-ranging domestic pigs markedly change the herb layer, but barely affect the shrub layer
JF  - FOREST ECOLOGY AND MANAGEMENT
J2  - FOREST ECOL MANAG
VL  - 568
PY  - 2024
SN  - 0378-1127
DO  - 10.1016/j.foreco.2024.122150
UR  - https://m2.mtmt.hu/api/publication/35145448
ID  - 35145448
N1  - HUN-REN Centre for Ecological Research, Institute of Ecology and Botany, Vácrátót, Hungary            
            University of Nottingham, School of Geography, Nottingham, United Kingdom            
            Institute for Nature Conservation of Vojvodina Province, Novi Sad, Serbia            
            ELTE Eötvös Loránd University, Faculty of Science, Budapest, Hungary            
            HUN-REN Research Centre for the Humanities, Institute of Ethnology, Budapest, Hungary            
            ELTE Eötvös Loránd University, Institute of Geography and Earth Sciences, Department of Environmental and Landscape Geography, Budapest, Hungary            
            Institute of Biology Bucharest, Romanian Academy, Bucharest, Romania            
            Export Date: 11 September 2024            
            CODEN: FECMD            
            Correspondence Address: Demeter, L.; HUN-REN Centre for Ecological Research, Hungary; email: demeter.laszlo@ecolres.hu
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Faragó, Viktória
AU  - Megyes, Melinda
AU  - Nagy, Balázs
AU  - Kériné Borsodi, Andrea
TI  - Taxonomic diversity and environmental tolerance of cultivable extremophilic bacteria from a high-altitude meltwater pond on Ojos del Salado (Chile)
JF  - BIOLOGIA FUTURA
J2  - BIOL FUTURA
PY  - 2024
SN  - 2676-8615
DO  - 10.1007/s42977-024-00229-z
UR  - https://m2.mtmt.hu/api/publication/35132005
ID  - 35132005
N1  - Export Date: 26 July 2024            
            Correspondence Address: Borsodi, A.K.; Department of Microbiology, Pázmány Péter sétány 1/C, Hungary; email: borsodi.andrea@ttk.elte.hu
AB  - Earth harbors unique environments where only microorganisms adapted to extreme conditions, known as extremophiles, can survive. This study focused on a high-altitude meltwater pond, located in the Puna de Atacama, Dry Andes. The extremophilic bacteria of this habitat must adapt to a range of extremities, including cold and dry climate, high UV radiation, high daily temperature fluctuations, low-nutrient availability, and negative water balance. This study aimed to explore the taxonomic diversity of cultivable extremophilic bacteria from sediment samples of a desiccated, high-altitude, meltwater pond using media with different organic matter contents and different incubation temperatures. Based on the 16S rRNA gene sequence analysis, the isolates were identified as members of the phyla Actinobacteria, Proteobacteria, and Firmicutes. The most abundant genera were Arthrobacter and Pseudoarthrobacter . The isolates had oligocarbophilic and psychrotrophic properties, suggesting that they have adapted to the extreme environmental parameters of their natural habitats. The results indicate a positive correlation between nutrient concentration and temperature tolerance.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Jakab, Gergely Imre
AU  - Bede-Fazekas, Ákos
AU  - Vona, Viktória
AU  - Madarász, Balázs
AU  - Karlik, Máté
AU  - Zacháry, Dóra
AU  - Filep, Tibor
AU  - Dévény, Zoltán
AU  - Centeri, Csaba
AU  - Masoudi, Malihe
AU  - Bidló, András
AU  - Al-Graiti, Thulfiqar
AU  - Szatmári, Gábor
AU  - Vancsik, Anna
AU  - Király, Csilla
AU  - Darabos, Gabriella
AU  - Angyal, Zsuzsanna
AU  - Szalai, Zoltán
TI  - Beyond land use: understanding variations in topsoil bulk versus recalcitrant organic matter
JF  - CATENA
J2  - CATENA
VL  - 244
PY  - 2024
PG  - 10
SN  - 0341-8162
DO  - 10.1016/j.catena.2024.108232
UR  - https://m2.mtmt.hu/api/publication/35092933
ID  - 35092933
AB  - Soil organic matter (SOM) concentration and composition are essential properties that affect most functions and ecosystem services. The relationship between soil and environmental covariates regarding SOM concentration and composition in various pools is not completely understood. This study aimed to identify the most influential drivers of SOM stabilization, focusing on arable lands in Hungary. Hungary is an ideal area for investigating SOM variability because it is at the meeting point of the three main climate effects that trigger a wide range of soil, land use, and topographical conditions. Overall, 87 soil samples were taken from the topsoil (2–20 cm) and fractionated (<20 µm) to separate the mineral phase-associated organic carbon (MAOC) and bulk pools. MAOC concentration varied on a wide range (0.5–14.1 %) and was the function of bulk SOM aromaticity and slope steepness, rather than land use, climatic conditions, or soil properties, indicating that MAOC is also affected by decomposition if the bulk OM is less available for the microbiome. Land use, especially in forest topsoils, reflects the elemental composition of the OM, focusing on the variations of residue composition. In contrast, aromaticity is rather related to soil and climate properties, suggesting increased relevance of transformation processes. As a consequence, SOM composition varies on a wide range in the topsoil, however, the lack of a definite trend at the county level suggests the complexity of the system and highlights the role of local circumstances.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Zacháry, Dóra
AU  - Filep, Tibor
AU  - Jakab, Gergely Imre
AU  - Ringer, Marianna
AU  - Balázs, Réka
AU  - Németh, Tibor
AU  - Szalai, Zoltán
TI  - Texture and clay mineralogy as main drivers of the priming effect in temperate forest soils
JF  - PLANT AND SOIL
J2  - PLANT SOIL
VL  - In press
PY  - 2024
PG  - 19
SN  - 0032-079X
DO  - 10.1007/s11104-024-06819-z
UR  - https://m2.mtmt.hu/api/publication/35086540
ID  - 35086540
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Tóth, Adrienn
AU  - Sipos, Péter
AU  - Jakab, Gergely Imre
AU  - Szalai, Zoltán
AU  - Kalicz, Péter
AU  - Madarász, Balázs
TI  - Improving the reliability of using rare earth elements as soil erosion tracers
JF  - CATENA
J2  - CATENA
VL  - 243
PY  - 2024
PG  - 7
SN  - 0341-8162
DO  - 10.1016/j.catena.2024.108175
UR  - https://m2.mtmt.hu/api/publication/34999737
ID  - 34999737
N1  - Export Date: 17 June 2024            
            CODEN: CIJPD            
            Correspondence Address: Sipos, P.; MTA Centre of ExcellenceHungary; email: sipos.peter@csfk.org
LA  - English
DB  - MTMT
ER  -