Results 1 to 10 of about 328,369 (286)
Evaluation of Toxicity Potential and Spatial Distribution of Ecological Risk of Heavy Metals in Surface Sediments of Anzali International Wetland Using GIS [PDF]
Introduction; Due to the potential toxicity and ecological risk of heavy metals in aquatic ecosystems, measuring and evaluating their concentration in different parts of aquatic environments is very necessary.
Zhaleh Amini +3 more
doaj +1 more source
Adults have more male-biased sex ratios than first-winter juveniles in wintering duck populations
Background The long-term monitoring of demographic changes in waterbird populations remains limited, but such information can be valuable for conservationists and waterbird managers.
Kevin A. Wood +3 more
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Background Winter numbers of the northwest European population of Bewick’s Swans (Cygnus columbianus bewickii) declined recently by c. 40%. During the same period, numbers of two sympatric and ecologically-similar congeners, the Mute Swan (Cygnus olor ...
Kevin A. Wood +3 more
doaj +1 more source
Amphibians are an understudied group in the zoo-focussed literature. Whilst commonly housed in specialist exhibits and of real conservation value due to the global extinction crisis, amphibian welfare is not often investigated empirically in zoo settings.
Jack Boultwood +2 more
doaj +1 more source
Grazing exclusion is an effective approach to restore degraded grasslands. However, the effects of grazing exclusion on keystone species and the complexity of plant community were poorly investigated.
Yong Zhang +7 more
doaj +1 more source
The complete mitochondrial genome of Discogobio macrophysallidos was first determined and analyzed in this work. Its mitochondrial genome is 16,593 bp in length, consisting of 13 protein-coding genes, 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA)
Yuping Qiu, Jinjin Jin, Guozhu Chen
doaj +1 more source
Evolutionary correlation of water-related traits between different structures of Dendrobium plants
Background Leaf water conservation and pseudobulb water storage are two of the strategies commonly employed by epiphytic plants to adapt to dry environments.
Mei Sun +3 more
doaj +1 more source
Economic Governance to Expand Commercial Wetlands: Within- and Cross-Scale Challenges [PDF]
Commercial wetlands are defined as wetlands directed by an entrepreneur with the intention of making a profit. The combination of ecosystem services that commercial wetlands can provide seems to be an attractive societal perspective.
Blaeij, A.T., de +2 more
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The allocation pattern of plant biomass presents the strategy of the plant community to adopt environmental changes, while the driver of biomass allocation is still unclear in degraded alpine grassland ecosystems.
Yong Zhang +15 more
doaj +1 more source
‘No Net Loss’ - Instrument Choice in Wetlands Protection [PDF]
While not a high priority issue for most people, the public has long recognized the general importance of wetlands. Since President George H.W. Bush\u27s campaign in 1988, successive administration have pledged to ensure there would be no net loss of ...
Ruhl, J.B., Salzman, James
core +2 more sources

