Dissimilarities in species assemblages among Amazonian mineral licks

Griffiths, Brian M.; Cooper, W. Justin; Bowler, Mark; Gilmore, Michael P.; Luther, David

doi:10.1111/btp.13012

Cited by 4 publications

(2 citation statements)

References 43 publications

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“…We would also like to note that participatory methods such as those described here are dependent upon building trust and respect with local communities. This study, for example, is built upon over 20 years of collaboration and mutual trust with the Maijuna (e.g., see Bowler et al, 2016;Gilmore, 2005;Gilmore et al, , 2020Griffiths et al, 2020Griffiths et al, , 2021. Regardless of their history with a community, we suggest that investigators and practitioners ask critical questions before engaging in community-based research, exploring the needs and wants of the community, and collaboratively developing methodologies.…”

Section: Discussionmentioning

confidence: 99%

Assessing the accuracy of distance‐ and interview‐based measures of hunting pressure

Griffiths

Kolowski

Bowler

et al. 2022

Conservat Sci and Prac

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In the Amazon Rainforest, the sustainability of hunting is difficult to model. Accurate sustainability models for hunting of mammal populations require a spatially explicit measure of hunting pressure. Because field‐based measures of hunting pressure are time and labor‐intensive, distance‐based proxies for hunting pressure are frequently used. In this study, we tested accuracy of distance‐based parameters in predicting measured hunting pressure obtained through interviews for a riverine community in the Peruvian Amazon. We examined the spatial accuracy of the interviews and investigated the minimum requirements for spatial assessment of hunting pressure based on interviews. Results illustrate that hunter‐reported animal kill locations were accurate to within a mean of 1 km. Interview effort results showed that approximately 4 months of interviews capturing at least 50% of hunts are necessary to obtain a complete measure of hunting pressure across the landscape. Generalized linear models identified a novel spatially explicit approach that explained 59% of the deviance in measured hunting pressure. Our model was based on distances from locations that are easily obtained through remotely sensed imagery, participatory mapping, and terrain characteristics, highlighting that biologically relevant and spatially explicit estimates of hunting pressure can be obtained without lengthy field‐based methods. Hunting pressure across a landscape can be accurately predicted from remote sensing, participatory mapping, and terrain characteristics.

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Section: Discussionmentioning

confidence: 99%

Assessing the accuracy of distance‐ and interview‐based measures of hunting pressure

Griffiths

Kolowski

Bowler

et al. 2022

Conservat Sci and Prac

Self Cite

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“…These camera trapping methods were previously used to assess temporal visitation patterns of mammals (Griffiths, Bowler, et al., 2020; Stewart et al., 2022), natural history insights (Griffiths, Gilmore, et al., 2020) and dissimilarities among species assemblages (Griffiths et al., 2021) at mineral licks, along with the development of allometric relationships between mammal body mass and sodium deficiency (Duvall et al., 2023).…”

Section: Methodsmentioning

confidence: 99%

Drivers of geophagy by red brocket deer (Mazama americana) at Amazonian interior forest mineral licks

Griffiths,

Jin

et al. 2024

Ecology and Evolution

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Mineral licks are key ecological components of the Amazon rainforest, providing critical dietary functions for herbivorous and frugivorous mammals and birds, which help maintain the structure and function of the forest itself through seed and nutrient dispersal. One of the most frequent visitors of interior forest mineral licks in the Amazon is the red brocket deer (Mazama americana), a large‐bodied ruminant frugivore and seed predator. While several hypotheses for the drivers of geophagy exist, including mineral supplementation, toxin adsorption, and habitat selection, robust data on geophagy for the red brocket deer for large numbers of mineral licks is nonexistent. We used soil data from 83 mineral licks in conjunction with camera trap data from 52 of those mineral licks and a mixed‐effects modeling approach to test the three proposed hypotheses of geophagy for the red brocket deer. We found that consumed soils at mineral licks had elevated concentrations of almost all major and minor biologically active minerals measured, including Ca, Na, Mg, K, Cu, Zn, and Mn. Model results suggest that all three hypotheses hold true to some extent for the red brocket deer, with the greatest support for the mineral supplementation hypothesis, in particular with respect to Mg, Ca, Na, Cu, and Zn. This study provides critical information on the feeding ecology of the red brocket deer in the wild, and the first robust analysis of geophagy of an Amazonian mammal involving a large sample size of interior forest mineral licks.

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Physical, landscape, and chemical properties of Amazonian interior forest mineral licks

Griffiths

Yan

Griffiths

et al. 2022

Environ Geochem Health

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Dissimilarities in species assemblages among Amazonian mineral licks

Cited by 4 publications

References 43 publications

Assessing the accuracy of distance‐ and interview‐based measures of hunting pressure

Assessing the accuracy of distance‐ and interview‐based measures of hunting pressure

Drivers of geophagy by red brocket deer (Mazama americana) at Amazonian interior forest mineral licks

Physical, landscape, and chemical properties of Amazonian interior forest mineral licks

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