نتایج جستجو برای: climatic effects
تعداد نتایج: 1570314 فیلتر نتایج به سال:
Mangroves are among the most well described and widely studied wetland communities in the world. The greatest threats to mangrove persistence are deforestation and other anthropogenic disturbances that can compromise habitat stability and resilience to sea-level rise. To persist, mangrove ecosystems must adjust to rising sea level by building vertically or become submerged. Mangroves may direct...
1. Climatic Adaptation of Plants in Boreal Zone 2. Trees and Shrubs 2.1. Regulation of the Annual Cycle 2.1.1. Phenology of Bud Burst 2.1.2. Phenology of Growth Cessation 2.2. Effects of Climatic Warming during Overwintering 2.2.1. Timing of Dehardening and Bud Burst 2.2.2. Timing of Growth Cessation and Hardening 2.3. Effects of Climatic Warming During Growing Season 3. Herbs and Grasses Gloss...
Variability is an inherent characteristic of neritic fisheries. This is usually associated with both heavy fishing and changes in environmental conditions. Consideration needs to be given to the biological, physical and human components of the management system. This includes controlling the type, size and amount of fish harvested; trying to respond in a timely manner to events in the fishery i...
Examining the short and long term effects of the Chicxulub impact is critical for understanding how life developed on Earth. While the aftermath of the initial impact would have produced harmful levels of radiation sufficient for eradicating a large portion of terrestrial life, this process does not explain the concurrent marine extinction. Following the primary impact, a large quantity of smal...
Climatic change has been implicated as the cause of abundance fluctuations in marine fish populations worldwide, but the effects on whole communities are poorly understood. We examined the effects of regional climatic change on two fish assemblages using independent datasets from inshore marine (English Channel, 1913-2002) and estuarine environments (Bristol Channel, 1981-2001). Our results sho...
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