
Kathryn E. StonerUniversity of Arizona | UA · School of Natural Resources and the Environment
Kathryn E. Stoner
PhD
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116
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Introduction
Additional affiliations
August 2018 - present
May 1996 - August 1998
January 2002 - April 2010
Publications
Publications (116)
The lesser long-nosed bat (Leptonycteris yerbabuenae) is a partially migratory, nectarivorous species that exhibits reproductive asynchrony across its range. Both migratory and resident populations of sexually active males of L. yerbabuenae may form an odoriferous dorsal patch during their mating season. This is created by smearing saliva, urogenit...
The future viability of wildlife conservation in the United States hinges on the field's ability to adapt to changing social–ecological conditions including shifting societal values and mounting pressures to engage a greater diversity of voices in decision‐making. As wildlife agencies respond to calls to broaden their relevance amid such changes, t...
State fish and wildlife agencies in the United States are confronted with the realities of a rapidly changing society. With declines in historical sources of revenue and the growth of diverse voices with values that differ from those emphasized by traditional policies and user groups, agencies are faced with diminishing relevancy and are encounteri...
Regardless of the low concentrations at which amino acids are present in floral nectar of bat-pollinated plants, their role as nectar flavor providers and their influence on bats’ foraging decisions have been recognized. Nevertheless, variation in the free amino acids among bat-pollinated plant species has been less studied. The goal of this study...
Migratory nectarivorous bats provide important ecological services throughout their ranges, particularly for their food plants. These services include pollinating food plants, seed dispersal, and reducing genetic isolation in plant populations. However, many important food plants occur in imperiled ecosystems, particularly in tropical dry forests....
This chapter examines the growth of Russian human capital since the collapse of the Soviet Union in order to understand whether the health and demography of the population can support the country’s foreign policies under Vladimir Putin. It examines trends of stubbornly low, although improving, life expectancy, and fertility, high male mortality, em...
Water is vital for the survival of any species because of its key role in most physiological processes. However, little is known about the non-food-related water sources exploited by arboreal mammals, the seasonality of their drinking behavior and its potential drivers, including diet composition, temperature, and rainfall. We investigated this sub...
Aim The Mexican long-tongued bat (Choeronycteris mexicana), Mexican long-nosed bat (Leptonycteris nivalis), and lesser long-nosed bat (Leptonycteris yerbabuenae) (Phyllostomidae: Glossophaginae) undertake long-distance migrations from south-central Mexico to the southwestern United States. It is proposed that these bats migrate along a nectar corri...
Three Neotropical species of nectarivorous bats, the lesser long-nosed bat (Leptonycteris yerbabuenae), Mexican long-nosed bat (Leptonycteris nivalis), and Mexican long-tongued bat (Choeronycteris mexicana), reach their northernmost extent in the southwestern United States. It’s generally accepted that these species migrate along a nectar corridor...
Riparian forests (RF) provide shelter, feeding resources and commuting areas and are fundamental for local fauna during long drought periods in tropical dry forests. Nevertheless, information regarding vertebrate ecology in tropical RF is scarce. The studies of bats in riparian habitats have been mostly focused on insectivorous assemblages in non-t...
Vegetation type and seasonality promote changes in the species composition and abundance of parasite hosts. However, it is poorly known how these variables affect host-parasite interaction networks. This information is important to understand the dynamics of parasite-host relationships according to biotic and abiotic changes. We compared the specia...
Most pollinators prefer the sugars present in the nectar they consume, so it has been hypothesized that they have molded nectar trait evolution. However, nectar-feeding bats do not exhibit preferences for the sugars present in their diet. We analyzed the role that biochemical and ecological factors could play in shaping the nectar traits of chiropt...
Primates are important seed dispersers, especially of large-seeded tree species, but the impact that these animals have on seedling recruitment is unclear. Evidence suggests that forest regeneration might be disrupted in forest fragments in which primates were extirpated. We tested this hypothesis by assessing seedling recruitment in 3 forest fragm...
Repeated use of sleeping trees (STs) by frugivores promotes the deposition and aggregation of copious
amounts of seed, thus having key implications for seed dispersal and forest regeneration. Seed-rain patterns produced by this behaviour likely depend on the frequency of use of these sites, yet this hypothesis has been poorly tested. We evaluated c...
Undersampling is commonplace in biodiversity surveys of species‐rich tropical assemblages in which rare taxa abound, with possible repercussions for our ability to implement surveys and monitoring programmes in a cost‐effective way.
We investigated the consequences of information loss due to species undersampling (missing subsets of species from th...
In primate populations, endoparasite species richness and prevalence are associated with host traits such as reproductive and social status, age, sex, host population density, and environmental factors such as humidity. We analyzed the species richness and prevalence of intestinal parasites in two sympatric primate populations, one of Alouatta pall...
The repeated use of sleeping sites by frugivorous vertebrates promotes the deposition and aggregation of copious amounts of seeds in these sites. This spatially contagious pattern of seed deposition has key implications for seed dispersal, particularly because such patterns can persist through recruitment. Assessing the seed rain patterns in sleepi...
Tropical dry forests (TDFs) are highly endangered tropical ecosystems being replaced by a complex mosaic of patches of different successional stages, agricultural fields and pasturelands. In this context, it is urgent to understand how taxa playing critical ecosystem roles respond to habitat modification. Because Phyllostomid bats provide important...
The aim of this study was to investigate the spatiotemporal variation in richness, abundance, structure and composition of phyllostomid bats over a successional gradient in a tropical dry forest in south-eastern Brazil. Four successional stages (pasture, early, intermediate and late) were sampled in the northern part of the state of Minas Gerais. B...
Studies comparing the abundance of frugivorous bats in shade-coffee plantations and forest fragments report contradictory results, and have not taken into account the landscape context in which coffee plantations are immersed. Variables of population composition such as abundance, sex proportion, and reproductive condition, together with biological...
Background/Question/Methods
Primates represent important seed dispersers, especially of large-seeded tree species; however, information on the impact these animals have on advanced regeneration in forest fragments remains obscure. We tested the hypothesis that forest regeneration is limited in fragments without primates. During 17-months we recor...
Understanding the response of biodiversity to land-use changes is an important challenge for ecologists. We assessed the effects of five landscape metrics (forest cover, number of patches, edge density, mean inter-patch isolation distance and matrix quality) and three patch metrics (patch size, shape and isolation) on the number of species and patc...
Chiropterophilic flowers secrete sugar nectar with low‐Nitrogen ( N hereafter) content and small amounts of amino acids, which may function to attract animals; nevertheless, the role that micronutrients have on the foraging decisions of Neotropical nectarivorous bats is unknown.
We offered the nectar specialist L eptonycteris yerbabueanae and the o...
Information on animal reproduction is critical for the application of wildlife conservation plans. The lesser long-nosed bat (Leptonycteris yerbabuenae) is classified as threatened in Mexico; however, many aspects of its reproductive biology are still unstudied. The formation of a dorsal patch in males of Leptonycteris spp. during the mating period...
Spider monkeys (Ateles geoffroyi) use sites composed of one or more trees for sleeping (sleeping sites and sleeping trees, respectively). Beneath these sites/trees they deposit copious amounts of dung in latrines. This behavior results in a clumped deposition pattern of seeds and nutrients that directly impacts the regeneration of tropical forests....
The rapid disruption of tropical forests probably imperils global biodiversity more than any other contemporary phenomenon. With deforestation advancing quickly, protected areas are increasingly becoming final refuges for threatened species and natural ecosystem processes. However, many protected areas in the tropics are themselves vulnerable to hu...
We review historic occurrences in Mexico of one of the least known Xenarthra of Mesoamerica the northern nakedtailed armadillo (Cabassous centralis Miller, 1899). We document 6 new records in the Lacandona rainforest, southern Mexico, and through interviews with local people, we assess potential threats for this species in the region. In additio...
Neotropical forests are being increasingly replaced by a mosaic of patches of different successional stages, agricultural fields and pasture lands. Consequently, the identification of factors shaping the performance of taxa in anthropogenic landscapes is gaining importance, especially for taxa playing critical roles in ecosystem functioning. As phy...
Ordination of sampling sites based on the structural attributes of vegetation.
(DOC)
Percentage of variation in population, ensemble and assemblage-level parameters, associated with the variation of the habitat attributes.
(DOC)
Most plausible models (95%) explaining the variation in population, ensemble and assemblage-level parameters.
(DOC)
Chiropterophylic and chiropterochoric species occurring in the Chamela-Cuixmala region.
(DOC)
Description of the image classification process.
(DOC)
Due to their role in seed dispersal, changes in the community of phyllostomid bats have direct consequences on ecological succession. The objective of this work was to document changes in the structure of bat assemblages among secondary successional stages of tropical rain forest in Chiapas, Mexico. Bats were mist-netted at ground level during 18 m...
Presentamos una síntesis del programa de investigación de largo plazo (iniciado en 2004) denominado Manejo de Bosques Tropicales (MABOTRO), llevado a cabo por académicos de once instituciones y más de 50 estudiantes de licenciatura y posgrado. Se construyó un marco metodológico para la generación de conocimientos que coadyuve a la preservación de s...
Due to their role in seed dispersal, changes in the community of phyllostomid bats have direct consequences on ecological succession. The objective of this work was to document changes in the structure of bat assemblages among secondary successional stages of tropical rain forest in Chiapas, Mexico. Bats were mist-netted at ground level during 18 m...
Forest fragmentation can lead to an important reduction in food availability, especially for some large-bodied tropical mammals such as spider monkeys. Information on the behavioral responses of species to these changes is critical for conservation; however, little is known about this topic. During a 15-mo period, we assessed the diet of the Geoffr...
Understanding how species cope with variations in climatic conditions, forest types and habitat amount is a fundamental challenge for ecologists and conservation biologists. We used data from 18 communities of Mesoamerican spider monkeys (Ateles geoffroyi) throughout their range to determine whether their activity patterns are affected by climatic...
Wood consumption is a rare behavior in frugivorous primates; however, it can be necessary for nutritional balancing as it may provide macro and/or micronutrients that are scarce in the most frequently eaten items (fruits). We tested this hypothesis in six spider monkey (Ateles geoffroyi) communities inhabiting continuous and fragmented rainforests...
Visit frequencies of nectarivorous bats at individual
Ceiba grandiflora
flowers, as a function of total flower numbers in the trees.
(PDF)
Behavioural ecologists increasingly recognise spatial memory as one the most influential cognitive traits involved in evolutionary processes. In particular, spatial working memory (SWM), i.e. the ability of animals to store temporarily useful information for current foraging tasks, determines the foraging efficiency of individuals. As a consequence...
Understanding how primates adjust their behavior in response to seasonality in both continuous and fragmented forests is a
fundamental challenge for primatologists and conservation biologists. During a 15-mo period, we studied the activity patterns
of 6 communities of spider monkeys (Ateles geoffroyi) living in continuous and fragmented forests in...
The regeneration of many tropical trees is threatened by forest fragmentation because it produces major physical, biological and ecological changes that limit seed germination and seedling establishment. We analyzed the regenerative potential of an old growth forest tree species—Ampelocera hottlei (Ulmaceae)—in three contrasting habitats located in...
1. Species richness is a state variable of some interest in monitoring programmes but raw species counts are often biased due to imperfect species detectability. Therefore, monitoring programmes should quantify detectability for target taxa to assess whether it varies over temporal or spatial scales. We assessed the potential for tropical bat monit...
We review historic occurrences in Mexico of one of the least known Xenarthra of Mesoamerica - the northern naked-tailed armadillo (Cabassous centralis Miller, 1899). We document 6 new records in the Lacandona rainforest, southern Mexico, and through interviews with local people, we assess potential threats for this species in the region. In additio...
Here we review all published articles and book chapters, as well as unpublished theses and data of Ateles geoffroyi diet to (1) summarize the literature; (2) synthesize general feeding patterns; (3) document plant taxonomic similarity in diet across study sites; and (4) suggest directions for future research and conservation priorities. We found 22...
To determine if frugivorous bats in tropical dry forest differentially use a particular habitat and if this use is related to their reproductive patterns, I monitored populations from one site from January 1994 to January 1997 in Parque Nacional Palo Verde in northwestern Costa Rica. Abundance, reproductive condition, sex ratio, age-classes, and re...
Seed dispersal is considered a key process determining spatial structure and dynamics of plant populations, and has crucial
implications for forest regeneration. We evaluated the effectiveness of spider monkeys (Ateles geoffroyi) as seed dispersers in continuous and fragmented habitats to test if this interaction is altered in forest fragments. We...
The Mesoamerican region is blessed with tremendous biological richness, a high level of species endemism, and a diverse cultural heritage. Yet in 2000, only 30 percent of the region’s forest cover remained. Overall, 37.4 percent of the land area of Mesoamerica is used for agriculture (CCAD 2002); much of this agriculture is concentrated in the more...
1. Species richness is a state variable of some interest in monitoring programmes but raw species counts are often biased due to imperfect species detectability. Therefore, monitoring programmes should quantify detectability for target taxa to assess whether it varies over temporal or spatial scales. We assessed the potential for tropical bat monit...
The preceding chapter introduced dietary analysis and discussed physical aspects of potential foods as they might influence feeding behaviour. Here, we deal with chemical aspects of potential foods. From the outset though, we should point out that attempts to explain the influence of chemical factors on primate nutrition, and the dietary factors th...
Seasonally dry tropical forests (SDTFs)—with a mean annual temperature greater than 17 degrees Celsius, rainfall ranging from 250 to 2000 millimeters annually and highly seasonal, and an annual ratio of potential evapotranspiration to precipitation of less than 1 (Holdridge 1967)—represent a unique combination of challenges for the living biota con...
Bats are ecologically important mammals in tropical ecosystems; however, their populations face numerous environmental threats related to climate change, habitat loss, fragmentation, hunting, and emerging diseases. Thus, there is a pressing need to develop and implement large-scale networks to monitor trends in bat populations over extended time pe...
During a nine month field study, we assess the ability of spider (Ateles geoffroyi) and howler (Alouatta pigra) monkeys to cross a large Mesoamerican river, and if this behavior is related to deforestation and/or human population size on the disturbed riverbank. The study was conducted along the Lacantún River, southern Mexico, which divides the Mo...
Myrtillocactus schenckii occurs in thorn-scrub forests of the Tehuacán Valley where people gather its edible fruits. It is also silviculturally managed and cultivated, people selecting plants with higher fruit production. We compared phenology, pollination biology, and breeding systems of wild and managed populations to determine whether humans hav...
During a nine month field study, we assess the ability of spider (Ateles geoffroyi) and howler (Alouatta pigra) monkeys to cross a large Mesoamerican river, and if this behavior is related to deforestation and/or human population size on the disturbed riverbank. The study was conducted along the Lacantún River, southern Mexico, which .divides the M...
Understanding tropical forest succession is critical for the development of tropical forest conservation strategies worldwide, given that tropical secondary forests can be considered the forests of the future. Tropical dry forests (TDF) are among the most threatened tropical ecosystems, there are more secondary forests and forest restoration effort...
Dry forests represent the most endangered ecosystem in tropical regions and continue to be one of the most sought after environments for human colonization, development and production. In spite of this, dry forests are one of the least well studied tropical habitats. This special issue is dedicated to reviewing much of the information that exists a...
Studies on successional dynamics in tropical systems have mostly focused on plant communities and mainly have been conducted in tropical humid areas. Here, we document changes in the structure of bat assemblages among secondary successional stages of a neotropical dry forest. We specifically focused on the speciose phyllostomid bat family, comprisi...
Background/Question/Methods
Many studies have documented the wide variation of nectar among species in volume, solute concentration, and composition, and this variation is thought to be an adaptation to particular pollinators. The fact that nectar is a resource produced in relatively small but replenishable quantities poses a unique challenge to a...
Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named "intake response". However, their capacity to achieve compensatory feeding, in which they maintain a constant flu...