🧬 The Felid Wiki — 3,000 research summaries

Cats naturally rest and sleep for much of the day, which complicates welfare interpretation because inactivity can reflect either healthy, contented rest or boredom, depression and learned helplessnes…

Felid sociality varies from the solitary tiger and most small cats to the group-living lion, and captive social management must respect these differences. This overview surveys research on housing cat…

The surfaces captive cats stand, walk and rest on affect comfort, health and behaviour, yet substrate is easily overlooked. This overview surveys substrate welfare for felids: the problems of hard, ab…

Managing captive felid populations sustainably requires controlling breeding to match available space and genetic goals, which raises difficult questions about surplus animals. This overview surveys t…

Effective enrichment is a structured process, not a collection of toys, and the SPIDER framework, Setting goals, Planning, Implementing, Documenting, Evaluating and Re-adjusting, formalises this cycle…

Familiar keepers occupy a special place in a captive animal's social environment, and the quality of the keeper-animal relationship can influence stress, cooperation and welfare. This overview surveys…

This overview surveys how the presence and behaviour of visitors specifically affect captive cats, a group that frequently responds to crowds with vigilance, hiding or altered activity. It examines st…

White tigers are not a separate subspecies but tigers carrying a recessive pigment variant, and nearly all captive white tigers descend from a small number of related founders, so producing them relie…

Felid species span tropical jungles, deserts and high mountains, so meeting their thermal needs in captivity, often in non-native climates, is a real welfare challenge. This overview surveys thermal w…

Large-scale captive tiger breeding facilities, particularly those linked to trade in tiger parts, present severe and systemic welfare concerns. This overview surveys the welfare dimensions of so-calle…

Moving cats between institutions for breeding, rescue or management is a recognised acute stressor with welfare implications. This overview surveys the science of felid transport and transfer: the str…

Non-invasive cortisol metabolite monitoring lets keepers test whether husbandry changes actually reduce physiological stress, moving welfare management from intuition to evidence. This overview survey…

Faecal glucocorticoid metabolite monitoring is the workhorse of felid stress research because it avoids the confound of capture and restraint, but it requires species-specific validation to be meaning…

Cats are arboreal-capable, climbing predators that value height, and research consistently shows captive felids prefer and benefit from elevated resting platforms, climbing structures and visually com…

Unlike most cats, tigers readily enter water and swim, and providing pools is considered an important welfare and enrichment feature for the species. This overview surveys evidence and practice around…

Private ownership of tigers, lions and other big cats, historically widespread in some countries, raises acute welfare and public-safety concerns. This overview surveys the issues: inadequate enclosur…

Cub-petting attractions, where the public pays to handle tiger, lion and other big-cat cubs, depend on a continuous supply of young animals within a narrow handleable age window. This overview surveys…

Conceptual frameworks structure how we judge captive animal welfare, and they have evolved over time. This overview surveys the progression from the Five Freedoms, freedom from hunger, discomfort, pai…

Many big cats live in poorly regulated roadside zoos and facilities that adopt the sanctuary label without meeting its standards, raising acute welfare concerns. This overview surveys the issues disti…

Safari parks house big cats, especially lions, in large drive-through enclosures that visitors traverse by vehicle, a model with distinctive welfare features. This overview surveys the welfare conside…

Beyond white tigers, other captive felid colour variants, white lions and the patterned king cheetah, raise similar questions about breeding for appearance. This overview surveys the genetics of these…

Swaisgood and Shepherdson reviewed how rigorously zoos had studied enrichment and stereotypy, surveying the published literature for methodological quality. They found many anecdotal claims but a grow…

Swaisgood RR, Shepherdson DJ · Zoo Biology · 2005

This edited volume brought together early scientific work on environmental enrichment, consolidating it into a coherent field. Chapters covered the history, theory, design and evaluation of enrichment…

Shepherdson DJ, Mellen JD, Hutchins M (eds) · Smithsonian Institution Press · 1998

Wells reviewed how stimulating the senses, through olfactory, auditory, visual and tactile inputs, can enrich captive animals. She summarised evidence that scents such as spices and prey odours, sound…

Wells DL · Applied Animal Behaviour Science · 2009

Morgan and Tromborg comprehensively reviewed the environmental factors that stress captive animals, cataloguing sound, light, odour, temperature, substrate, restraint, human presence, predictability a…

Morgan KN, Tromborg CT · Applied Animal Behaviour Science · 2007

Mason's review synthesised decades of work on stereotypic behaviour across captive species, defining stereotypies as repetitive, invariant movements with no obvious goal. She argued they arise from fr…

Mason GJ · Animal Behaviour · 1991

Lyons, Young and Deag surveyed multiple felid species across enclosures differing in size, complexity and feeding routine to identify what most affects behaviour. They found that enclosure usage and a…

Lyons J, Young RJ, Deag JM · Zoo Biology · 1997

Xu and colleagues identified the molecular cause of the white tiger phenotype, mapping it to a single amino-acid change in the pigment gene SLC45A2. Using a captive pedigree and genome analysis, they…

Xu X, Dong GX, Hu XS, Miao L, Zhang XL, Zhang DL, et al · Current Biology · 2013

Sherwen and Hemsworth reviewed and reframed the visitor effect, drawing on human-animal interaction science from farm animals to argue that visitors are a salient and often underestimated feature of t…

Sherwen SL, Hemsworth PH · Animals · 2019

Bashaw, Bloomsmith, Maple and Bercovitch tested whether feeding-based enrichment changes behaviour in tigers and lions, comparing a hung carcass-like 'fishing' device and bones against standard feedin…

Bashaw MJ, Bloomsmith MA, Maple TL, Bercovitch FB · Zoo Biology · 2003