Biologia Evolutiva, Ecologia i Ciències Ambientals: Envíos recientes
Mostrando ítems 21-40 de 1915
Growth and phenology of three dwarf shrub species in a six-year soil warming experiment at the alpine treeline
Global warming can have substantial impacts on the phenological and growth patterns of alpine and Arctic species, resulting in shifts in plant community composition and ecosystem dynamics. We evaluated the effects of a ...
Novel Integration of Forage Cereal-Legume Mixtures in Conservation Agriculture Enhances Weed Control and Barley Productivity in Moroccan Drylands
Background: To our knowledge, this is the first study quantitatively investigating the mixed forage integration into dryland conservation agriculture (CA) systems in the Mediterranean region. Weed management under CA is ...
Xylem anatomical and growth responses of the dwarf shrub <em>Vaccinium myrtillus</em> to CO<sub>2</sub> enrichment and soil warming at treeline.
Plant growth responses to environmental changes may be linked to xylem anatomical adjustments. The study of such links is essential for improving our understanding of plant functioning under global change. We investigated ...
Sea urchin holobionts: microbiome variation across species, compartments and locations in Paracentrotus lividus and Arbacia lixula
Understanding holobiont dynamics is essential for unraveling the complex interactions between marine hosts and their microbiota. Sea urchins play pivotal roles in shaping benthic ecosystems, yet the functional roles of ...
Using Scenarios for Reducing Uncertainties in Biodiversity Conservation: From Global Targets to European Steppes
Scenario analysis allows assessing how complex socio-ecological systems might respond to different policy pathways. We usedan expert-based participatory approach to explore how four different European socio-ecological ...
Fall and Rise of a Threatened Raptor: Unraveling Long-Term Population Dynamics with Spatially Explicit Integrated Models.
Population dynamics are governed by the so-called four BIDE processes: birth, immigration, death, and emigration. However, most population models fail to explicitly consider all four processes, which may hinder a comprehensive ...
Biodiversity of Marine Mollusk Assemblages from Two Contrasted Algal Habitats in the Mediterranean Sea (Tossa de Mar, Costa Brava, NE Spain)
The malacological faunae of two algal habitats with different lighting conditions—a sciophilous wall and a photophilous one—both located in Tossa de Mar (Costa Brava, Girona, NE Spain), have been studied to examine the ...
Human evolution: Stature variation in the Neolithic
he Neolithic transition towards agriculture and animal husbandry is often associated with declining nutrition and health, which led to shorter human stature. A new study reveals that the reduction in height was modest and ...
Postharvesting population dynamics of the South American sea lion (Otaria byronia) in the southwestern Atlantic
Many pinniped populations precipitously declined during the 19th and 20th centuries due to overharvesting. In Uruguay, the South American sea lion (SASL) was harvested until 1986. Birth rates in two nearby breeding colonies ...
Diet-to-female and female-to-pup isotopic discrimination in South American sea lions
Rationale: The use of accurate, species-specific diet-tissue discrimination factors is a critical requirement when applying stable isotope mixing models to predict consumer diet composition. Thus, diet-to-female and ...
Use of epidermis for the monitoring of tissular trace elements in Mediterranean striped dolphins (Stenella coeruleoalba)
Trace elements accumulate in epidermis, liver, kidney and muscle tissues in cetaceans. However, contrarily to internal tissues, epidermis can be sampled using minimally-invasive techniques. We investigate the patterns of ...
Dietary consistency of male South American sea lions (Otaria flavescens) in southern Brazil during three decades inferred from stable isotope analysis
Marine predators may undergo remarkable dietary changes through time as a result of both anthropogenic and natural changes in the environment, but this variability is often difficult to tackle and seldom incorporated into ...
Concentrations of mercury in tissues of striped dolphins suggest decline of pollution in Mediterranean open waters
The Mediterranean is a semi-enclosed sea subject to high mercury (Hg) pollution from both natural and anthropogenic sources. With the objective of discerning temporal changes in marine Hg pollution in the oceanic waters ...
Prey dynamics and breeding performance in a generalist predator: the differential role of prey densitiy, biomass, and effective consumption rates
The breeding performance of predators is influenced by the differential consequences of prey density, prey biomass and effective consumption rates. Using camera traps at nests, we investigated whether changes in prey ...
Lithium response in bipolar disorder: Epigenome-wide DNA methylation signatures and epigenetic aging
Lithium (Li) is the first-line treatment for bipolar disorder (BD) even though only 30 % of BD patients are considered excellent responders. The mechanisms by which Li exerts its action are not clearly understood, but it ...
Religion and Fertility patterns: comparison of life history traits in Catholics and Protestants, Hallstatt (Austria) 1733-1908
Catholicism and Protestantism have different ways of promoting the family unit that could influence survival and fertility at a population level. Parish records in the Austrian village of Hallstatt allowed the reconstruction ...
Increased rhizosphere populations of Trichoderma asperellum strain T34 caused by secretion pattern of root exudates in tomato plants inoculated with Botrytis cinerea
Root exudates secreted from plants can modify rhizosphere microbiota by enhancing or inhibiting the growth of biological control agents (BCAs) and/or pathogens. Similarly, microorganisms can modify the secretion of plant ...
Regional tree line dynamics in response to global change in the Pyrenees
1 Many studies in northern Europe, North and South America, describe regional trends of population densification at altitudinal and polar tree lines during the 20th century. The purpose of this study was (1) to ascertain ...
Current regeneration patterns at treeline in the Pyrenees indicate similar recruitment processes irrespective of past disturbance regime
Aim: Impacts of global change, such as land-use and climate changes, could produce significant alterations in the elevational patterns of alpine tree line ecotones and their adjacent vegetation zones. Because the responses ...
MEDFATE 2.9.3: a trait-enabled model to simulate Mediterranean forest function and dynamics at regional scales
Regional-level applications of dynamic vegetation models are challenging because they need to accommodate the variation in plant functional diversity, which requires moving away from broadly defined functional types. ...
