F. Secchi results 24
· Newest (Page 1/1, per page 25)
Author: F. Secchi ×Clear All Filters
Search Results
Contrasting adaptive strategies of Quercus robur and Q. rubra to severe drought driven by phosphorus supplyNARA Subscribed
Background and Aims Plant resilience to drought is strongly modulated by nutrient availability, which triggers complex physiological and metabolic reprogramming. In European forests, native species with high resource demands may be disadvantaged under abiotic stress compared to more efficient alien species. This study investigates how drought and phosphorous (P) availability affect the responses of Quercus robur (EO) and Querc...
The interplay between drought and phosphorus scarcity shapes resilience to stress in Quercus spp. by modulating metabolomic profilesNARA Subscribed
Background and aims Plant resilience to drought conditions is modulated by physiological and metabolic responses, including the accumulation of antioxidant metabolites. These mechanisms can be in influenced by nutrient availability, especially phosphorus (P). In European mixed forests, native species with high resource demands often compete with more efficient alien species, whose advantages under abiotic stress can enhance th...
Syntectonic magmatism and reactivation of collisional structures during late-Variscan shearing (SW Sardinia, Italy)NARA Subscribed
The Arbus igneous complex (SW Sardinia, Italy) represents a good example of a short time lived post-collisional composite pluton emplaced at shallow crustal level in the external zone of the Variscan chain. The pluton almost consists of granodiorite and leucogranite rock- suites emplaced at 304 ± 1 Ma within a main NW trending thrust separating the metamorphic wedge from the fold and thrust belt foreland. The pluton emplaced i...
In coastal populations of the common bottlenose dolphin, resident females are usually more abundant and have more restricted home ranges than males. Here, we studied sex‐specific population dynamics of bottlenose dolphins off the Alvarado Lagoon System, southwestern Gulf of Mexico. We used standard photo‐identification and capture‐mark‐recapture methods to determine population parameters under the superpopulation approach. Sea...
The presence of transient and temporary individuals in capture-mark-recapture studies may violate the assumption on equal catchability, and thus yield biased estimates. We investigated the effects of residency patterns on population parameters of bottlenose dolphins inhabiting the coastal waters off the Alvarado Lagoon System (ALS), Veracruz, Mexico. We hypothesized that this population is open but there exists a “core communi...
Identifying threatened populations and quantifying their vulnerability is crucial for establishing priorities for conservation and providing robust information for decision-making. Lahille’s bottlenose dolphins have been long subjected to by-catch mortality in gillnet fisheries in coastal waters of southern Brazil, particularly in the Patos Lagoon estuary (PLE) and adjacent coastal waters, where dolphins from three populations...
Age structure of strandings and growth of Lahille's bottlenose dolphin ( Tursiops truncatus gephyreus )NARA Subscribed
This study describes the age structure and sex‐specific growth patterns of Lahille's bottlenose dolphins ( Tursiops truncatus gephyreus ), a subspecies endemic to the Southwest Atlantic Ocean (SWAO). The ages of 120 animals collected in southern Brazil between 1976 and 2017 were determined. We found high frequencies of young animals, mostly males, with no sex bias among adults. A temporal change in the age structure of strandi...
Diverse groups of fungi are associated with plastics in the surface waters of the Western South Atlantic and the Antarctic PeninsulaNARA Subscribed
Marine plastic pollution has a range of negative impacts for biota and the colonization of plastics in the marine environment by microorganisms may have significant ecological impacts. However, data on epiplastic organisms, particularly fungi, is still lacking for many ocean regions. To evaluate plastic associated fungi and their geographic distribution, we characterised plastics sampled from surface waters of the western Sout...
Distribution, habitat use, and abundance of the endangered franciscana in southeastern and southern BrazilNARA Subscribed
The franciscana ( Pontoporia blainvillei ) is endemic to coastal waters from Brazil to Argentina. The species is regarded as one of the most threatened cetaceans in South America due to high bycatch levels. Four management units (FMAs) were defined throughout the species’ range. FMA II includes states along southeastern and southern Brazil, and represents one of the least known units. Recently, genetic analysis proposed that F...
Previous1Next