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Content with tag landscape connectivity .

For a better production, agriculture areas need to recover at least 20% of natural habitat

International agreements aim to conserve 17% of Earth’s land area by 2020 but include no area-based conservation targets within the working landscapes that support human needs through farming, ranching, and forestry. Through a review of country-level legislation, this study found that just 38% of countries have minimum area requirements for conserving native habitats within working landscapes. The study argues for increasing native habitats to at least 20% of working landscape area where it...

How will changes in ecosystem functioning affect the demography of animal populations

Temporal variability in primary productivity can change habitat quality for consumer species by affecting the energy levels available as food resources. However, it remains unclear how habitat-quality fluctuations may determine the dynamics of spatially structured populations, where the effects of habitat size, quality and isolation have been customarily assessed assuming static habitats. The first empirical evaluation on the effects of stochastic fluctuations in primary productivity—a...

Ducks as vectors of seed dispersal for a broad spectrum of plants

Dabbling ducks have long been recognized as important vectors of dispersal for strictly aquatic plants. In terrestrial ecosystems they are widely assumed to be irrelevant. In this study we identified the plant species dispersed by seven duck species in Europe based on a comprehensive review of gut contents

General versus specific surveys: estimating the suitability of different road-crossing structures for small mammals

The use of wildlife road-crossing structures is less monitored for small mammals than for more emblematic species. Furthermore, because of the undeniable difficulty of small mammal track identification, most biologists usually carry out general surveys without species recognition. Here it is hypothesized that general surveys traditionally used for monitoring WCS by small mammals may be biased because the degraded habitats along roads are mainly used by generalist and not specialist species.