Jason Riggio
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View article: Author Correction: Socio-political and ecological fragility of threatened, free-ranging African lion populations
Author Correction: Socio-political and ecological fragility of threatened, free-ranging African lion populations Open
In the original version of this article, the captions for figures 3 and 4 were incomplete.The original sentence "The shaded grid depicts those populations which fall within one standard deviation of the mean." that appears at the end of bo…
View article: Socio-political and ecological fragility of threatened, free-ranging African lion populations
Socio-political and ecological fragility of threatened, free-ranging African lion populations Open
Lions are one of the world’s most iconic species but are threatened with extinction. Developing effective range-wide conservation plans are crucial but hampered by the relative lack of knowledge on specific threats facing each population a…
View article: Long-term monitoring reveals the impact of changing climate and habitat on the fitness of cavity-nesting songbirds
Long-term monitoring reveals the impact of changing climate and habitat on the fitness of cavity-nesting songbirds Open
Long-term studies on the impacts of global change on reproduction are rare, even though reproductive output can respond more quickly than species' abundances or distributions. We explore the influences of habitat use and weather on fitness…
View article: Predicting wildlife corridors for multiple species in an East African ungulate community
Predicting wildlife corridors for multiple species in an East African ungulate community Open
Wildlife corridors are typically designed for single species, yet holistic conservation approaches require corridors suitable for multiple species. Modelling habitat linkages for wildlife is based on several modelling steps (each involving…
View article: Global human influence maps reveal clear opportunities in conserving Earth’s remaining intact terrestrial ecosystems
Global human influence maps reveal clear opportunities in conserving Earth’s remaining intact terrestrial ecosystems Open
Leading up to the Convention on Biological Diversity Conference of the Parties 15, there is momentum around setting bold conservation targets. Yet, it remains unclear how much of Earth's land area remains without significant human influenc…
View article: Ray fractions and carbohydrate dynamics of tree species along a 2750 m elevation gradient indicate climate response, not spatial storage limitation
Ray fractions and carbohydrate dynamics of tree species along a 2750 m elevation gradient indicate climate response, not spatial storage limitation Open
Summary Parenchyma cells in the xylem store nonstructural carbohydrates (NSC), providing reserves of energy that fuel woody perennials through periods of stress and/or limitations to photosynthesis. If the capacity for storage is subject t…
View article: Global areas of low human impact (‘Low Impact Areas’) and fragmentation of the natural world
Global areas of low human impact (‘Low Impact Areas’) and fragmentation of the natural world Open
View article: How effective are the protected areas of East Africa?
How effective are the protected areas of East Africa? Open
Protected areas are the cornerstone of in situ conservation and their effective management is critical for maintaining biodiversity in the long term. In East Africa (Burundi, Kenya, Rwanda, Tanzania and Uganda) there are 1,776 protected ar…
View article: The forgotten link between northern and southern Tanzania
The forgotten link between northern and southern Tanzania Open
We present a method to rapidly assess the current status and location of wildlife corridors using interviews, and provide an update on the corridors linking Wami-Mbiki Wildlife Management Area to surrounding protected areas in eastern Tanz…
View article: Structural connectivity at a national scale: Wildlife corridors in Tanzania
Structural connectivity at a national scale: Wildlife corridors in Tanzania Open
Wildlife corridors can help maintain landscape connectivity but novel methods must be developed to assess regional structural connectivity quickly and cheaply so as to determine where expensive and time-consuming surveys of functional conn…
View article: Lion populations may be declining in Africa but not as Bauer et al. suggest
Lion populations may be declining in Africa but not as Bauer et al. suggest Open
Historical knowledge and recent surveys attest that lions are declining across parts of Africa (1, 2). We applaud Bauer et al. (3) for assembling available counts because they motivate better monitoring and conservation support. Their own …
View article: A novel approach to mapping land conversion using Google Earth with an application to East Africa
A novel approach to mapping land conversion using Google Earth with an application to East Africa Open
Effective conservation planning relies on the accurate identification of anthropogenic land cover. However, accessing localized information can be difficult or impossible in developing countries. Additionally, global medium-resolution land…