Results 101 to 110 of about 39,331 (318)

Dynamic modelling of a freshwater stream community from experimental field data [PDF]

open access: yesarXiv, 2012
We developed mathematical models that simulate community dynamics derived from a series of perturbation experiments. These experiments were performed in an Atlantic Forest stream. The three trophic level community was submitted to two combinations of press perturbation experiment. In the first, the top trophic level was removed by electrical exclusion.
arxiv  

Latitude, sea ice, and glaciers are important drivers of submerged vegetation distributions in the Arctic coastal waters along east Greenland

open access: yesLimnology and Oceanography, EarlyView.
Abstract Present study is the first quantitative and coherent presentation of the submerged marine vegetation along the Greenland east coast, from 65.5°N to 76.8°N, based on data obtained from 286 underwater video transects. Based on cluster analysis, four different marine submerged vegetation community figurations were identified: a southern and ...
Susse Wegeberg   +3 more
wiley   +1 more source

The interaction of regional and local drivers shapes summer ecosystem metabolism in lakes across Canada

open access: yesLimnology and Oceanography, EarlyView.
Abstract Assessments of lake gross primary production (GPP) and respiration (R) and their balance (net ecosystem production, NEP) have been limited to specific watersheds and a limited number of lakes, often along narrow environmental gradients. This is because conventional approaches require either lengthy incubations or the deployment of monitoring ...
Amir Reza Shahabinia   +2 more
wiley   +1 more source

Explainable few-shot learning workflow for detecting invasive and exotic tree species [PDF]

open access: yesarXiv
Deep Learning methods are notorious for relying on extensive labeled datasets to train and assess their performance. This can cause difficulties in practical situations where models should be trained for new applications for which very little data is available. While few-shot learning algorithms can address the first problem, they still lack sufficient
arxiv  

Coherent changes of the circulation in the deep North Atlantic from moored transport arrays [PDF]

open access: yesarXiv, 2016
In situ boundary arrays have been installed in the North Atlantic to measure the large-scale ocean circulation. Here, we use measurements at the western edge of the North Atlantic at $16^\circ$N and $26^\circ$N to investigate low-frequency variations in deep densities and their associated influence on ocean transports.
arxiv  

An avifaunal survey of the vanishing montane Atlantic forest of southern Bahia, Brazil [PDF]

open access: bronze, 1995
Luíz Pedreira Gonzaga   +3 more
openalex   +1 more source

A hierarchical life cycle model for Atlantic salmon stock assessment at the North Atlantic basin scale [PDF]

open access: yesarXiv, 2019
We developed an integrated hierarchical Bayesian life cycle model that simultaneously estimates the abundance of post-smolts at sea, post-smolt survival rates, and proportions maturing as 1SW, for all SU in Northern Europe, Southern Europe and North America.
arxiv  

Revisiting the distribution and total amount of nitrogen fixation across the Kuroshio

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract The Kuroshio Current, a western boundary current in the North Pacific Ocean, is regarded as a hotspot of nitrogen fixation that drives marine primary productivity and biogeochemical cycles. However, this assumption is based on limited, spatiotemporally biased data.
Takuya Sato   +11 more
wiley   +1 more source

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