Global urban environmental change drives adaptation in white clover

Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural clines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale

Nutrient mitigation in a temporary river basin

We estimate the nutrient budget in a temporary Mediterranean river basin. We use field monitoring and modelling tools to estimate nutrient sources and transfer in both high and low flow conditions. Inverse modelling by the help of PHREEQC model validated the hypothesis of a losing stream during the dry period. Soil and Water Assessment Tool model captured the water quality of the basin. The ‘total daily maximum load’ approach is used to estimate the nutrient flux status by flow class, indicating that almost 60 % of the river network fails to meet nitrogen criteria and 50 % phosphate criteria. We recommend that existing well-documented remediation measures such as reforestation of the riparian area or composting of food process biosolids should be implemented to achieve load reduction in close conjunction with social needs

Hydrologic and geochemical processes of temporary Mediterranean rivers: Krathis River

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: INTERREG IIIB CADSE

Hydrologic and biogeochemical modeling of a typical temporary Mediterranean River Basin

Summarization: Results from an integrated observational and modeling study of a typical Greek temporary river are presented. The mathematical model Hydrological Simulation Program – Fortran (HSPF) was used to simulate the hydrology, sediment transport and nutrient loads of Krathis river basin. The model simulated the time response of the watershed based on geochemical and hydrologic mass balances. The model captured the seasonal variability of the flow and the concentrations of suspended solids and nutrients. Finally, the calibrated model was used to simulate the effect of climate change to the hydrology and geochemistry of Krathis river basin.Παρουσιάστηκε στο: Restoration and Protection of the Environment VII

In-Stream geochemical processes of temporary rivers – Krathis river case study

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: Restoration and Protection of the Environment VI

A generalized reach–scale biogeochemical model for temporary rivers

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: European Water Resources Association (EWRA

Testing of the HSPF model for simulation of the nutrient loads in the upper iskar basin

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: 10th International Specialist Conference on Watershed and River Basin Managemen

Εκφορτίσεων του καρστικού συστήματος των Λευκών Ορέων στην Κρήτη

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: 6ο Εθνικό Συνέδριο Ελληνικής Επιτροπής Διαχείρισης Υδατικών Πόρω

Hydrologic simulation of Iskar river subwatershed using the HSPF model

Μη διαθέσιμη περίληψηNot available summarizationΠαρουσιάστηκε στο: Progress in Surface and Subsurface water Studies at the Plot and Small Basin Scale”, ERB2004 – Euromediterranean Conferenc