نتایج جستجو برای: biodiversity loss
تعداد نتایج: 478085 فیلتر نتایج به سال:
Local and landscape-scale agricultural intensification is a major driver of global biodiversity loss. Controversially discussed solutions include wildlife-friendly farming or combining high-intensity farming with land-sparing for nature. Here, we integrate biodiversity and crop productivity data for smallholder cacao in Indonesia to exemplify for tropical agroforests that there is little relati...
As biodiversity is declining at an unprecedented rate, an important current scientific challenge is to understand and predict the consequences of biodiversity loss. Here, we develop a theory that predicts the temporal variability of community biomass from the properties of individual component species in monoculture. Our theory shows that biodiversity stabilises ecosystems through three main me...
Silvertown [1] provides an outspoken critique on the concept of ecosystem services (ES), feeding a longstanding debate about how to express and conserve the value of nature for humans [2–4]. The paper raises valid concerns about ES monetization, its failure to ‘capture the multifaceted sense in which people value nature’, and market shortcomings in halting biodiversity loss. However, it also po...
Deforestation is one of the world’s greatest land-use habitat alterations (Scarsbrook and Halliday, 1999). Specifically, tropical environments, where the rate of deforestation is currently increasing and changing not only the landscape, but the quality of water draining it, are the sites for the greatest freshwater biodiversity loss and system simplification (Boyero and Bailey, 2001). For examp...
SCIENCE COMMUNICATION Väliverronen, Hellsten / THE ROLE OF METAPHORS In public discourse on the environment, scientific knowledge is often mediated by metaphors. In this article, the authors are concerned with the role of metaphors in the communication of biodiversity loss. More specifically, their examination focuses on such popular metaphors as “the library of life,” “biotic holocaust,” and “...
Rapid changes in biodiversity are occurring globally, yet the ecological impacts of diversity loss are poorly understood. Here we use data from marine invertebrate communities to parameterize models that predict how extinctions will affect sediment bioturbation, a process vital to the persistence of aquatic communities. We show that species extinction is generally expected to reduce bioturbatio...
Loss of biological diversity because of extinction is one of the most pronounced changes to the global environment. For several decades, researchers have tried to understand how changes in biodiversity might impact biomass production by examining how biomass correlates with a number of biodiversity metrics (especially the number of species and functional groups). This body of research has focus...
Habitat loss is a primary cause of loss of biodiversity but conserving habitat for species presents challenges. Land parcels differ in their ability to produce returns for landowners and landowners may have private information about the value of the land to them. Land parcels also differ in the type and quality of habitat and the spatial pattern of land use across multiple landowners is importa...
Biodiversity loss can alter disease transmission; however, the magnitude and direction of these effects vary widely across ecosystems, scales, and pathogens. Here we experimentally examine the effects of one of the most globally pervasive patterns of biodiversity decline, the selective loss of large wildlife, on infection probability, intensity and population size of a group of common rodent-bo...
The effects of species loss on ecosystem processes has attracted substantial research efforts over the last 2 decades (1, 2), partly motivated by rapid declines in global biodiversity. The value of this research to practical conservation is, however, yet limited (ref. 3, but see ref. 4), partly due to the lack of clear evidence from natural systems. In a recent study in PNAS, Rovito et al. (5) ...
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