Research library
🧬 The Felid Wiki — 3,000 research summaries
AI-curated summaries for the pride’s library — verify citations independently before citing.
3,000 summaries
Research overview: proteinuria as a prognostic factor in feline CKD
OverviewThe degree of urinary protein loss, assessed by the urine protein-to-creatinine ratio, is an important prognostic indicator in feline CKD, with higher proteinuria associated with faster progression an…
Research overview: prusten as a friendly close-range tiger signal
OverviewTigers and several other large cats produce prusten, also called chuffing, a soft fluttering sound made by blowing air through the nostrils with the mouth closed. This overview surveys observations th…
Research overview: pseudopregnancy in felids
OverviewWhen a cat ovulates without conceiving, the resulting corpora lutea secrete progesterone and produce a pseudopregnancy, a non-fertile luteal phase shorter than true gestation. This overview surveys th…
Research overview: public engagement and coexistence messaging for urban caracals
OverviewThe caracal has become a charismatic emblem for urban-wildlife coexistence in Cape Town, and outreach is a deliberate component of its conservation. This overview synthesises work on how citizen-scien…
Research overview: puma activity patterns and avoidance of people
OverviewPumas are mainly crepuscular and nocturnal, and they intensify their avoidance of humans in space and time where people are present. This overview synthesizes research showing that cougars concentrate…
Research overview: puma attack risk and public risk communication
OverviewThis overview synthesises research on the rare but high-profile risk of puma attacks on people in North America and how agencies communicate that risk. It reviews analyses of attack circumstances, the…
Research overview: puma connectivity in fragmented landscapes
OverviewPumas in human-dominated regions of North America, such as the mountain lions of southern California, have become a vivid case study in the consequences of severed connectivity. This overview surveys…
Research overview: puma home-range size across the Americas
OverviewPuma home ranges vary widely with prey density, terrain, and sex, among the largest of any solitary cat in prey-poor environments. This overview synthesizes telemetry studies showing that male pumas o…
Research overview: puma kill caching and feeding ecology
OverviewPumas typically kill prey larger than they can eat at once and cache carcasses to feed over several days. This overview synthesizes GPS-cluster and field studies showing how cougars drag and cover the…
Research overview: puma livestock depredation and lethal-removal permits in the western US
OverviewThis overview synthesises research on puma predation on livestock, sheep, calves, goats, hobby-farm animals, across the western United States, and the depredation-permit systems that authorise killing…
Research overview: puma predation and its effects on deer populations
OverviewPumas are major predators of deer across the Americas, and their effect on prey populations has been long studied and debated. This overview synthesizes research on how cougars select vulnerable indiv…
Research overview: puma predation on bighorn sheep
OverviewA survey of how cougar predation can threaten small and recovering populations of desert and mountain bighorn sheep. Although bighorn are not preferred prey, individual pumas can specialize on sheep,…
Research overview: puma predation on guanaco in Patagonia
OverviewA survey of the predator-prey relationship between pumas and guanacos in the steppe and mountains of Patagonia, where the guanaco is the puma's main native prey. Pumas are major predators of guanacos,…
Research overview: puma range dynamics and eastward recolonization potential
OverviewPumas were extirpated from much of eastern North America but persist and expand in the west, prompting study of where suitable habitat exists and how the species might recolonize. This overview survey…
Research overview: puma responses to wildfire in California landscapes
OverviewPumas in fire-prone California navigate landscapes repeatedly shaped by wildfire, and tracking studies examine how they respond to burns. This overview surveys research on how pumas move during and af…
Research overview: puma temporal avoidance of humans and shifts toward nocturnality
OverviewWhere pumas share landscapes with people, they often avoid humans in time as well as space, becoming more nocturnal to sidestep daytime human activity, and this overview synthesizes the telemetry evid…
Research overview: puma-deer population dynamics in western North America
OverviewAn overview of the central predator-prey relationship between cougars and mule deer, the staple prey across much of the western United States. Puma density tends to track deer abundance, and puma pred…
Research overview: puma-induced vigilance and the landscape of fear
OverviewA survey of how pumas create spatial gradients of perceived risk that alter where and how their ungulate prey forage. Because pumas are ambush predators favoring cover and terrain that aids stalking,…
Research overview: puma-sheep conflict on Patagonian rangelands
OverviewThis overview reviews human-puma conflict across the sheep-ranching landscapes of Argentine and Chilean Patagonia, where pumas prey on sheep and guanaco and ranchers have long persecuted them. It synt…
Research overview: pumas and guanacos in Patagonia
OverviewAt the southern end of their range, pumas in Patagonia prey heavily on guanacos, the region's native wild camelid, in open steppe and mountain landscapes. This overview synthesizes research on how Pat…
Research overview: pumas as providers of carrion to ecosystems
OverviewBy killing large prey and leaving partly eaten carcasses, pumas subsidize a wide community of scavengers and influence nutrient cycling. This overview synthesizes research showing that puma kills supp…
Research overview: pumas at the urban-wildland interface
OverviewPumas increasingly live near cities in parts of their range, navigating fragmented habitat threaded with roads and development. This overview synthesizes research, notably from California, on how coug…
Research overview: pumas, hobby farms, and the exurban interface
OverviewThis overview examines puma conflict at the expanding exurban interface in the western Americas, where small hobby farms and acreages place horses, llamas, goats, and pets within reach of pumas using…
Research overview: pumas, trophic cascades, and mesopredator effects
OverviewAs apex or near-apex predators, pumas can influence ecosystems through cascading effects on prey and smaller predators. This overview synthesizes research suggesting that the loss or decline of pumas…
Research overview: pupil dynamics, light adaptation, and the wide aperture eye
OverviewCat eyes adjust to enormous changes in light, and this overview reviews the dynamics of pupil constriction and dilation and the optics of a large aperture. A widely dilating pupil gathers abundant lig…
Research overview: pupil responses to light and arousal in cats
OverviewA cat's pupils change not only with light level but with arousal, fear, and excitement, making the pupil a window onto both optics and emotional state. This overview surveys the dual control of the fe…
Research overview: pupil, accommodation, and focusing in cats
OverviewPupil size interacts with how an eye focuses, since a smaller aperture increases depth of field while a larger one demands more precise accommodation. This overview surveys how the feline pupil and le…
Research overview: purring across the cat family
OverviewPurring is not unique to the domestic cat, and its distribution across felids has long been used to divide the family. This overview surveys the traditional contrast between purring cats, which cannot…
Research overview: purring in distress versus contentment
OverviewAlthough purring is popularly equated with happiness, cats also purr when injured, frightened, giving birth or near death, prompting research into the contexts and possible functions of the behaviour.…
Research overview: puzzle-box experiments and the law of effect
OverviewSome of the founding experiments of comparative psychology used cats in puzzle boxes to study how animals learn to escape confinement. This overview surveys the historical work in which cats gradually…