Results 61 to 70 of about 1,855 (168)

STAREA ŞI ROLUL ARIILOR PROTEJATE DIN NORDUL ŢĂRII

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2019
Lucrarea se concentrează asupra unor aspecte ale stării ecologice a zonelor naturale protejate de stat în Regiunea de Nord a Republicii Moldova. Rezultatele au fost obținute pe baza unui studiu cuprinzător efectuat în timpul expedițiilor pe teren și a ...
Nina LIOGCHII, Adam BEGU, Vladimir BREGA
doaj   +1 more source

Global meta‐analysis reveals urban‐associated behavioural differences among wild populations

open access: yesJournal of Animal Ecology, EarlyView.
Urbanization drives rapid phenotypic change, yet broad patterns of behavioural responses remain unclear. Using a global phylogenetic meta‐analysis, we show urban populations exhibit increased boldness, aggression, exploration and activity—especially in birds—highlighting consistent behavioural shifts and revealing major taxonomic gaps that limit our ...
Tracy T. Burkhard   +2 more
wiley   +1 more source

Ecologie du phytoplancton du lac Kivu [PDF]

open access: yesTropicultura, 2008
Speciation within the African Coffee Pathogen. Cet article analyse s'il est avantageux d'utiliser le compost au lieu de l'engrais minéral pour produire la laitue dans la zone urbaine et péri-urbaine de Yaoundé.
Sarmento, H.
doaj  

Feminizing Wolbachia influence microbiota composition in the terrestrial isopod Armadillidium vulgare

open access: yesScientific Reports, 2018
Wolbachia are widespread heritable endosymbionts of arthropods notorious for their profound effects on host fitness as well as for providing protection against viruses and eukaryotic parasites, indicating that they can interact with other microorganisms ...
Jessica Dittmer, Didier Bouchon
doaj   +1 more source

Ecologie des systèmes alimentaires : Définition

open access: yes, 2022
L’écologie des systèmes alimentaires (SA) désigne une approche englobant l’agroécologie et la manière de se nourrir, de façon à prendre en compte les interdépendances entre l’environnement, l’alimentation et les filières. Fondée sur des approches holistiques, de type « one-health », cette approche interdisciplinaire en cours de construction permet d ...
Duru, Michel   +2 more
openaire   +2 more sources

Ecological scale mediates nonlinear relationships of animal nutrient excretion with dissolved organic matter

open access: yesJournal of Animal Ecology, EarlyView.
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan   +3 more
wiley   +1 more source

Ecologie du phytoplancton du lac Kivu [PDF]

open access: yesTropicultura, 2009
Microbiological, Biochemical and Genetic Potential of Freeze Dried Starter Cultures of Acetic Acid Bacteria Isolated from Tropical Products Found in Sub-Saharan Africa and Intended for Use in the Production of Vinegar.
Sarmento, H.
doaj  

Male production in green sea turtles under a feminizing climate: A validated model of sex ratios with temperature‐dependent sex determination

open access: yesJournal of Animal Ecology, EarlyView.
This study introduces validated methods to predict sex ratios in wild Green sea turtle (Chelonia mydas) nests. It quantifies beach‐scale temperature heterogeneity, incorporates clutch‐level variation in thermal sensitivity and models temperature effects across the thermosensitive period, demonstrating how temporal temperature dynamics and spatial ...
Marc Girondot   +3 more
wiley   +1 more source

High thermal plasticity, low heritability and constant directional selection on breeding phenology in a viviparous ectotherm

open access: yesJournal of Animal Ecology, EarlyView.
Our findings reveal that breeding phenology of the common lizard is shaped by strong thermal plasticity, body size effects, constant selection for earlier parturition, but low heritability. This suggests that phenological responses to climate change in this species, and likely in other squamates, will predominantly arise through plastic rather than ...
Théo Bodineau   +7 more
wiley   +1 more source

Ecologie urbaine

open access: yesChimères, 2001
Bertomeu Agnès. Ecologie urbaine. In: Chimères. Revue des schizoanalyses, N°42, printemps 2001. Le devenir mineur des minorités. pp. 97-101.
openaire   +2 more sources

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