Results 231 to 240 of about 372,823 (264)

The status and ecology of crocodiles in the Purari

1983
In many areas, including the Purari River basin, the extensive hunting of crocodiles during the last three decades has drastically reduced their wild populations. The Government of Papua New Guinea has been aware of the pressures on wild crocodile populations and in the last five years, with the help of the United Nations has actively encouraged and ...
J. C. Pernetta, S. Burgin
openaire   +1 more source

Sediment nutrients, ecological status and restoration of lakes

Water Research, 2019
Phosphorus (P) is the main nutrient that causes eutrophication in fresh waters. The majority of P in lake ecosystems is usually stored in the bottom sediment, hence P cycling from the sediment into the water column can significantly and negatively impact water quality.
openaire   +2 more sources

Nutritional status in japan from the viewpoint of numerical ecology

Social Science & Medicine. Part A: Medical Psychology & Medical Sociology, 1978
Abstract This study reports the internal structure of the Japanese dietary life on the basis of statistical analysis about the amount of consumption of major foods which are observed in households respectively. A new concept, “food consumption structure”, is introduced through the matrix of correlation coefficient among major foods.
openaire   +2 more sources

Blockchain Application Status and Ecology

2022
Xiaodan Tang, Zijun Jia, Wei Yang
openaire   +1 more source

Biology and Ecology of the Cryptophyceae: Status and Challenges

Biological Oceanography, 1989
AbstractThe biology and ecology of the Cryptophyceae are updated from recent papers published and new scientific results. Quick-freezing and fracturing methods have provided amazing details of surface structures of members of the class. New pigments have recently been discovered. An improved basis for taxonomy is thus emerging.
openaire   +1 more source

Multiple stressors determine river ecological status at the European scale: Towards an integrated understanding of river status deterioration

Global Change Biology, 2021
Markus Venohr, Lidija Globevnik, Jos Van Gils   +2 more
exaly  

Ecological Status

2004
Eleftheria Kampa, Wenke Hansen
openaire   +1 more source

Observations on the Status of Ecology

Ecology, 1957
openaire   +1 more source

Prediction of ecological status of surface water bodies with supervised machine learning classifiers

Science of the Total Environment, 2023
Chiara Arrighi, Fabio Castelli
exaly  

Evaluation of the Ecological Status of Wetlands of International Importance in China

Sustainability, 2023
Jun Yuan, Ziru Niu
exaly