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Diversity of beetle species and functional traits along gradients of deadwood suggests weak environmental filtering

Forest Ecosystems 2023年第1期10卷 56-63页

作者： Marco Basile Francesco Parisi Roberto Tognetti Saverio Francini Fabio Lombardi Marco Marchetti Davide Travaglini elena de santis Gherardo Chirici Swiss Federal Research Institute WSL Zürcherstrasse 1118903BirmensdorfSwitzerland Swiss Ornithological Institute Seerose 16204SempachSwitzerland GeoLAB-Laboratory of Forest Geomatics Department of AgricultureFoodEnvironment and ForestryUniversita degli Studi di FirenzeFirenzeItaly Dipartimento Agricoltura Ambiente e AlimentiUniversita degli Studi del MoliseVia De Sanctis86100CampobassoItaly Fondazione per il Futuro delle Citta FirenzeItaly Dipartimento di Agraria Universita Mediterranea di Reggio CalabriaLocalita di Feo di VitoReggio Calabria89122Italy Dipartimento di Bioscienze e Territorio Universita degli Studi del MoliseContrada Fonte Lappone86090PescheItaly

Background: Gradients in local environmental characteristics may favour the abundance of species with particular traits, while other species decline, or favour species with different traits at the same time, without an increase in average species abundances. Therefore, we asked: do variations in species and traits differ along gradients of deadwood variables? Do species abundance and trait occurrence change with species richness within or between functional groups? Thus, we analysed the beetle assemblages of five forest sites located in Italy, along the Apennines ***: From 2012 to 2018 we sampled beetles and five deadwood types in 193 plots to characterise the deadwood gradient: standing dead trees, snags, dead downed trees, coarse woody debris, and stumps. We modelled beetle species relative abundances and trophic traits occurrences against the deadwood variables using joint species distribution ***: Out of 462 species, only 77 showed significant responses to at least one deadwood type, with a weak mean response across species. Trophic groups showed mostly negative responses to deadwood variables. Species abundance increased with species richness among sites only for phytophagous and saproxylophagous. Trait occurrence did not increase with species richness among sites, except for phytophagous and ***, trait occurrence changed significantly with species richness of several trophic groups within some *** found that increases in species richness do not result in decreases in species abundance of a given trophic group, but rather null or positive relationships were found suggesting low interspecific ***: Our findings suggest that in Mediterranean mountain forests there is still room for increasing the level of naturalness, at least for what concerns deadwood management. On one side, our findings suggest that competition for deadwood substrates is still low, on the other side they indicate that incre

关键词： Abundance Forest Italy Joint species distribution model Saproxylic Trophic group

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Circulating tumor cells and the metastatic process: the complexity of malignancy

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Journal of Cancer Metastasis and Treatment 2018年第1期4卷 628-641页

作者： Tania Di Raimo elena de santis Luigi Coppola Mario Rosario D’Andrea Francesco Angelini Medical Oncology and Anatomic Pathology Unit San Filippo Neri HospitalRome 00135Italy Experimental&Clinical Pharmacology Centro Di Riferimento Oncologico-National Cancer CenterAviano(PN)33081Italy department of Anatomical HistologicalLegal Medical and of the Locomotor Apparatus SciencesSapienza UniversityRome 00135Italy Anatomic Pathology Unit Sandro Pertini HospitalRome 00157Italy

despite improvements achieved in terms of early detection and therapeutic approach,metastatic breast cancer remains one of the principal worldwide causes of *** recent years,due to the heterogeneous response of each patient to chemotherapy,clinical research highlights the need of a personalized *** tumor cells(CTCs)represents a promising tool for this ***,even if their correlation with sever-ity,outcome and metastatic nature of the tumor has been established,several issues,mainly concerning their characterization and isolation,need to be *** this review,latest knowledge on CTCs and metastatic pro-cess in breast cancer were analyzed,aiming to understand their clinical utility and validity for a prospective ther-apeutic scenario.

关键词： Breast cancer metastasis circulating tumor cells personalized therapy

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