Alexandre Martinez results 34
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An in-depth look at shallow-water walking: the mechanical determinants of the energy metabolic cost of shallow water walking in humansNARA Subscribed
Human locomotion in water involves unique forces (buoyancy, drag) influencing metabolic cost. However, a validated model integrating these forces to predict the cost of transport (COT) during shallow water walking (SWW) is lacking, and energetic optimization strategies remain unclear compared to terrestrial gaits. We measured the COT in nine healthy men during SWW across four immersion depths (knee to xiphoid) and four walking...
Echoes of the Past: Long‐Term Climate Stability Shapes Functional and Phylogenetic Diversity in Euro‐Mediterranean ForestsNARA Subscribed
Aim Understanding the relative influence of past and present environmental and anthropogenic drivers on biodiversity is crucial for predicting future biodiversity trends. We assessed how past climate stability, present climate, habitat characteristics, disturbances (fire and herbivory), and past and present land use shape current functional and phylogenetic diversity across multiple taxa. Location Euro‐Mediterranean forests. T...
Dominance and rarity in tree communities across the globe: Patterns, predictors and threatsNARA Subscribed
Aim Ecological and anthropogenic factors shift the abundances of dominant and rare tree species within local forest communities, thus affecting species composition and ecosystem functioning. To inform forest and conservation management it is important to understand the drivers of dominance and rarity in local tree communities. We answer the following research questions: (1) What are the patterns of dominance and rarity in tree...
Postural adjustments and perceptual responses of Nordic running: concurrent effects of poles and irregular terrainNARA Subscribed
Purpose In the natural environment, humans must continuously negotiate irregular and unpredictable terrain. Recently, the poles have been extensively used during trial running events. However, we know little about how humans adjust posture and bilateral coordination to use poles in irregular terrain. Here, we compared kinematics, bilateral coordination and perceptual responses between regular (compact dust) and irregular terra...
Human societies face challenges in transitioning towards low‐carbon economies and sustainable management of land use and natural resources. Documenting and learning from past transitions helps policy‐makers cope with such challenges. The agricultural revolution in Cantabrian Spain ( ca . 7000 cal a bp ) was one major adaptation of hunter‐gatherers to a changing environment that started with the Last Glacial Maximum ( ca . 24 0...
AMAZONIA CAMTRAP: A data set of mammal, bird, and reptile species recorded with camera traps in the Amazon forestNARA Subscribed
The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer‐reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non‐invasive method of surveying vertebrates, applicable to different scales of time and space. In this study, we organized and standardized camera trap records from dif...
Motivation SIA‐BRA is a data set that compiles stable carbon (C) and nitrogen (N) isotope ratios of terrestrial and aquatic animals sampled in Brazilian biomes and coastal marine areas. Stable isotope ratios are helpful in animal ecology for several reasons; for instance, they can be used to investigate trophic niches, energy sources (diet tracing) and to track migration patterns. The Neotropics are considered one of the most...
Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyon...