Colin A. Chapman
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View article: Elephants inhabiting two forested sites in western Uganda exhibit contrasting patterns of species identity, density, and history of hybridization
Elephants inhabiting two forested sites in western Uganda exhibit contrasting patterns of species identity, density, and history of hybridization Open
Elephant populations across much of Africa face severe rates of decline due to poaching and habitat loss. The recent decision by the International Union for the Conservation of Nature (IUCN) to separately list African forest ( Loxodonta cy…
View article: An Automated AI Framework for Quantitative Measurement of Mammalian Behavior
An Automated AI Framework for Quantitative Measurement of Mammalian Behavior Open
Despite the large amount of video data captured during ethological studies of wild mammals, there is no widely accepted method available to automatically and quantitatively measure and analyze animal behavior. We developed a framework usin…
View article: Science-based suggestions to save the world’s rarest primate species <i>Nomascus hainanus</i>
Science-based suggestions to save the world’s rarest primate species <i>Nomascus hainanus</i> Open
Conservation practices for extremely small populations must be grounded in solid science to prevent extinction. Hainan gibbon ( Nomascus hainanus ) is the world’s rarest primate species; however, insufficient data on its habitat suitabilit…
View article: Effect of primate protection on threatened and endemic vertebrates, plants, ecosystem services, and future climate refugia
Effect of primate protection on threatened and endemic vertebrates, plants, ecosystem services, and future climate refugia Open
Primates, 69% of which are threatened with extinction, are the third most specious order of mammals. We used primates as model taxa to examine the umbrella effects of primates on ecosystem services and the protection of other vertebrates a…
View article: Yaws Circulating in Nonhuman Primates, Uganda and Rwanda
Yaws Circulating in Nonhuman Primates, Uganda and Rwanda Open
The bacterium Treponema pallidum pertenue causes yaws in humans and nonhuman primates. We describe 33% T. pallidum pertenue seropositivity in 9 species of nonhuman primates in Uganda and Rwanda, seroconversion during a lethal outbreak and …
View article: Genomes reveal age and demographic consequence of ultrafast adaptive radiation
Genomes reveal age and demographic consequence of ultrafast adaptive radiation Open
New species typically evolve over several million years. However, rates of speciation and ecological diversification vary by orders of magnitude across the tree of life, with the fastest shown by some adaptive radiations. Eight hundred end…
View article: Large range sizes link fast life histories with high species richness across wet tropical tree floras
Large range sizes link fast life histories with high species richness across wet tropical tree floras Open
Understanding how the traits of lineages are related to diversification is key for elucidating the origin of variation in species richness. Here, we test whether traits are related to species richness among lineages of trees from all major…
View article: Effects of gastrointestinal parasites on fecal glucocorticoids and behaviour in vervet monkeys (Chlorocebus pygerythrus)
Effects of gastrointestinal parasites on fecal glucocorticoids and behaviour in vervet monkeys (Chlorocebus pygerythrus) Open
Relationships between parasites, host physiology, and behaviours are complex. Parasites can influence host hormonal microenvironment and behaviour through “sickness behaviours” that generally conserve energy. Using a parasite removal exper…
View article: Solar radiation and atmospheric CO$_2$ predict young leaf production in a moist evergreen tropical forest: Insights from 23 years
Solar radiation and atmospheric CO$_2$ predict young leaf production in a moist evergreen tropical forest: Insights from 23 years Open
Climate change impacts ecosystems worldwide, affecting animal behaviour and survival both directly and indirectly through changes such as the availability of food. For animals reliant on leaves as a primary food source, understanding how c…
View article: A long‐term study on food choices and nutritional goals of a leaf‐eating primate
A long‐term study on food choices and nutritional goals of a leaf‐eating primate Open
Efficient foraging plays a critical role in fitness, yet food choices and underlying nutritional goals vary among animals. To understand those choices and therefore the importance of different food resources, many studies estimate food pre…
View article: Tropical field stations yield high conservation return on investment
Tropical field stations yield high conservation return on investment Open
Conservation funding is currently limited; cost‐effective conservation solutions are essential. We suggest that the thousands of field stations worldwide can play key roles at the frontline of biodiversity conservation and have high intrin…
View article: Participatory wildlife films for primate conservation education in Los Tuxtlas Biosphere Reserve, Veracruz, Mexico
Participatory wildlife films for primate conservation education in Los Tuxtlas Biosphere Reserve, Veracruz, Mexico Open
Audiovisual media has become an integral part of conservation education strategies, with the potential not only to communicate information but also to impact on its viewers perceptions and attitudes towards a particular subject. Despite th…
View article: Parks can effectively protect ungulates and elephants despite a constant poaching threat
Parks can effectively protect ungulates and elephants despite a constant poaching threat Open
Establishing protected areas is a key element of most conservation strategies, but continuous effective management is needed to ensure that biodiversity is protected. Here we provide an evaluation of park effectiveness by quantifying chang…
View article: Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests
Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests Open
Central African evergreen broadleaved forests around the equator exhibit a double annual cycle for canopy phenology and carbon uptake seasonality. The underlying drivers of this behavior are poorly understood and the double seasonality is …
View article: Herbicide alternatives in boreal and northern temperate forests of Ontario and Quebec: A compendium of studies
Herbicide alternatives in boreal and northern temperate forests of Ontario and Quebec: A compendium of studies Open
There is increasing concern across Canada regarding the use of chemical herbicides in forestry. In Quebec, the use of herbicides for forest management on public lands has been discontinued since 2001, and there is mounting pressure to elim…
View article: Tropical field stations yield high conservation return on investment
Tropical field stations yield high conservation return on investment Open
Conservation funding is currently limited; cost‐effective conservation solutions are essential. We suggest that the thousands of field stations worldwide can play key roles at the frontline of biodiversity conservation and have high intrin…
View article: Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests
Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests Open
The data for the paper titled 'Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests'.
View article: Lead exposure and its relationship with fecal cortisol levels in black howler monkeys (<i>Alouatta pigra</i>)
Lead exposure and its relationship with fecal cortisol levels in black howler monkeys (<i>Alouatta pigra</i>) Open
Efficiently detecting early environmental threats to wildlife is vital for conservation. Beyond obvious dangers like habitat loss or deforestation, our study focuses on one of the most hazardous toxic metals for wildlife: lead (Pb). Pb is …
View article: bi4africa dataset - open source
bi4africa dataset - open source Open
The bii4africa dataset is presented in a multi-spreadsheet .ods file. The raw data spreadsheet (‘Scores_Raw’) includes 31,313 individual expert estimates of the impact of a sub-Saharan African land use on a species response group of terres…
View article: bii4africa dataset
bii4africa dataset Open
The bii4africa dataset is presented in a multi-spreadsheet .xlsx file. The raw data spreadsheet (‘Scores_Raw’) includes 31,313 individual expert estimates of the impact of a sub-Saharan African land use on a species response group of terre…
View article: Primate foraging strategies modulate responses to anthropogenic change and thus primate conservation
Primate foraging strategies modulate responses to anthropogenic change and thus primate conservation Open
International audience
View article: Fifty+ years of primate research illustrates complex drivers of abundance and increasing primate numbers
Fifty+ years of primate research illustrates complex drivers of abundance and increasing primate numbers Open
Many primate populations are threatened by human actions and a central tool used for their protection is establishing protected areas. However, even if populations in such areas are protected from hunting and deforestation, they still may …
View article: The Ethiopian wolf can act as a flagship and umbrella species to protect the Afroalpine ecosystem and foster sustainable development
The Ethiopian wolf can act as a flagship and umbrella species to protect the Afroalpine ecosystem and foster sustainable development Open
Summary Habitat alteration and climate change are important threats to terrestrial biodiversity in the tropics. Endorsing flagship or umbrella species can help conserve sympatric biodiversity, restore degraded ecosystems and achieve United…
View article: Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests
Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests Open
The data for the paper titled 'Solar Radiation Triggers the Bimodal Leaf Phenology of Central African Evergreen Broadleaved Forests'.
View article: Vertebrate environmental DNA from leaf swabs
Vertebrate environmental DNA from leaf swabs Open
Terrestrial vertebrates are threatened by anthropogenic activities around the world. The rapid biodiversity loss that ensues is most intense in the tropics and affects ecosystem functions, such as seed dispersal, or may facilitate pathogen…