نتایج جستجو برای: population growth and climate changes

تعداد نتایج: 17112870  

This edited volume is devoted to the examination of the implications of the inevitable changes wrought by global change on the welfare and livelihoods of tens of millions of people who live in dryland regions. Global change is more than just climate change and the ramifications of changing trade patterns (geopolitical and economic aspects), the shift to the market economy, demographic factors (...

2016
Brandon R. McFadden

There is great uncertainty due to challenges of escalating population growth and climate change. Public perception that diverges from the scientific community may decrease the effectiveness of scientific inquiry and innovation as tools to solve these challenges. The objective of this study was to identify the factors associated with the divergence of public opinion from scientific consensus reg...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2011
Sara Souther James B McGraw

Bioclimatic envelope models of species' responses to climate change are used to predict how species will respond to increasing temperatures. These models are frequently based on the assumption that the northern and southern boundaries of a species' range define its thermal niche. However, this assumption may be violated if populations are adapted to local temperature regimes and have evolved po...

Journal: :Proceedings. Biological sciences 2012
Benjamin G Van Allen Amy E Dunham Christopher M Asquith Volker H W Rudolf

Understanding what traits determine the extinction risk of species has been a long-standing challenge. Natural populations increasingly experience reductions in habitat and population size concurrent with increasing novel environmental variation owing to anthropogenic disturbance and climate change. Recent studies show that a species risk of decline towards extinction is often non-random across...

2014
Ryan R. J. McAllister Timothy F. Smith Catherine E. Lovelock Darryl Low Choy Andrew J. Ash Jan McDonald

There is growing recognition that regionally scaled responses will be pivotal in adapting to climate change (e.g. Kirshen et al. 2008; Reyer et al. 2012). This recognition is echoed in South East Queensland (SEQ), where rapid population growth and coastal urban centres have made it one of Australia’s most vulnerable regions and a focus for climate adaptation research. As a collection of papers,...

2012
Sarah M. Eglington James W. Pearce-Higgins

Threats to biodiversity resulting from habitat destruction and deterioration have been documented for many species, whilst climate change is regarded as increasingly impacting upon species' distribution and abundance. However, few studies have disentangled the relative importance of these two drivers in causing recent population declines. We quantify the relative importance of both processes by...

Journal: :Global change biology 2012
Elise F Zipkin Leslie Ries Rick Reeves James Regetz Karen S Oberhauser

Understanding the impacts of climate on migratory species is complicated by the fact that these species travel through several climates that may be changing in diverse ways throughout their complete migratory cycle. Most studies are not designed to tease out the direct and indirect effects of climate at various stages along the migration route. We assess the impacts of spring and summer climate...

2013
Bruce R. Conard

The word ―sustainability‖ is often used in business in the belief that the current ways of doing things will be able to be continued with only minor changes to balance economic development with related environmental and social issues. There are, however, immense challenges that threaten the very sustainability of our global society, let alone individual businesses or developments. A few of the ...

2016
Emily M. Dangremond Ilka C. Feller

Climate change-driven shifts in species ranges are ongoing and expected to increase. However, life-history traits may interact with climate to influence species ranges, potentially accelerating or slowing range shifts in response to climate change. Tropical mangroves have expanded their ranges poleward in the last three decades. Here, we report on a shift at the range edge in life-history trait...

2016
Katherine A. Heldt Sean D. Connell Kathryn Anderson Bayden D. Russell Pablo Munguia

When conditions are stressful, reproduction and population growth are reduced, but when favourable, reproduction and population size can boom. Theory suggests climate change is an increasingly stressful environment, predicting extinctions or decreased abundances. However, if favourable conditions align, such as an increase in resources or release from competition and predation, future climate c...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید