Spatially explicit modeling of community occupancy using Markov Random Field models with imperfect observation: Mesocarnivores in Apostle Islands National Lakeshore

Shen, Yunyi; Olson, Erik R.; Deelen, Timothy R. Van

doi:10.1016/j.ecolmodel.2021.109712

Cited by 4 publications

(2 citation statements)

References 63 publications

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“…Ecologically similar species may also differentiate their habitat use to reduce competition, either over evolutionary time scales or as a plastic phenotypic response to the presence of competitors (Comley et al, 2020a(Comley et al, , 2020bShen et al, 2021). Dietary niche partitioning also facilitates coexistence, reducing both interference and exploitation competition over shared prey species (Carvalho & Gomes, 2004;Lu et al, 2023;Owen-Smith & Mills, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…For example, cheetahs ( Acinonyx jubatus ), African wild dogs ( Lycaon pictus ), and leopards ( Panthera pardus ) often avoid resource‐rich habitats and alter their activity timing in the presence of lions ( Panthera leo ), which are larger and more dominant competitors (Durant, 1998; Swanson et al., 2014; Vanak et al., 2013). Ecologically similar species may also differentiate their habitat use to reduce competition, either over evolutionary time scales or as a plastic phenotypic response to the presence of competitors (Comley et al., 2020a, 2020b; Shen et al., 2021). Dietary niche partitioning also facilitates coexistence, reducing both interference and exploitation competition over shared prey species (Carvalho & Gomes, 2004; Lu et al., 2023; Owen‐Smith & Mills, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Limited spatiotemporal niche partitioning among mesocarnivores in Gorongosa National Park, Mozambique

Grabowski,

Phillips,

Gaynor

2024

Ecology and Evolution

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Competition drives community composition and structure in many ecosystems. Spatial and temporal niche partitioning, in which competing species divide the environment in space or time, are mechanisms that may allow for coexistence among ecologically similar species. Such division of resources may be especially important for carnivores in African savannas, which support diverse carnivore assemblages. We used camera traps to explore patterns of spatial and temporal niche partitioning among four mesocarnivore species in Mozambique's Gorongosa National Park: large‐spotted genet (Genetta maculata), African civet (Civettictis civetta), honey badger (Mellivora capensis) and marsh mongoose (Atilax paludinosus). We applied a multispecies occupancy model to evaluate spatial partitioning among mesocarnivores and to quantify the environmental factors that affect species‐specific habitat use, including relative lion (Panthera leo) activity. We also analyzed the temporal activity overlap of the four focal species. We identified species‐specific habitat covariates that influenced detection probabilities but found no evidence of spatial or temporal partitioning among mesocarnivores in the study system. Indeed, we found some evidence for spatial co‐occurrence between two of our focal species: African civet and marsh mongoose. There may be limited competition among mesocarnivores in this system, perhaps due to niche and diet differentiation among these species and an abundance of resources. While we found limited evidence that lion activity impacts mesocarnivores, ongoing monitoring of intraguild interactions is vital as apex predator populations recover in the system. This study adds to a growing understanding of African mesocarnivore ecology and highlights the importance of understanding these dynamics for effective multispecies conservation and restoration.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Limited spatiotemporal niche partitioning among mesocarnivores in Gorongosa National Park, Mozambique

Grabowski,

Phillips,

Gaynor

2024

Ecology and Evolution

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Comparative biogeography of volant and nonvolant mammals in a temperate island archipelago

et al. 2022

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Island biogeography theory is a foundational ecological concept that describes how island or habitat patch size and isolation predict biodiversity, but few have studied how the effects of island biogeography vary with life history characteristics of temperate mammal communities. From 2014 to 2020, we surveyed volant and nonvolant mammals within the Apostle Islands archipelago (Wisconsin, USA) using camera trapping, live trapping, and acoustic monitoring. We used linear regression and information-theoretic model selection to evaluate the effects of island size and isolation on indices of biodiversity. We also examined the effects of life history characteristics (i.e., body mass, winter inactivity) on the relative abundance and distribution of each species on the islands and the mainland. For volant mammals, island size and isolation were not associated with any metrics of diversity. We found island size was positively associated with nonvolant mammal species richness and diversity, but not species evenness. Island isolation was not a significant predictor for small nonvolant mammal diversity, although both size and isolation appeared to influence island biogeography of medium-large nonvolant mammals. We also found that the interaction between winter inactivity and body mass influenced the vagility of nonvolant mammals in the archipelago. Our results suggest that life history characteristics are important in mediating species responses to biogeography, supporting the dispersal-limitation nonequilibrium view of island biogeography theory, particularly for nonvolant mammals.

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The structure and connectivity of an archipelagic population of black bears

Cooper,

Edwards,

Van Stappen

et al. 2024

Conserv Genet

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Spatially explicit modeling of community occupancy using Markov Random Field models with imperfect observation: Mesocarnivores in Apostle Islands National Lakeshore

Cited by 4 publications

References 63 publications

Limited spatiotemporal niche partitioning among mesocarnivores in Gorongosa National Park, Mozambique

Limited spatiotemporal niche partitioning among mesocarnivores in Gorongosa National Park, Mozambique

Comparative biogeography of volant and nonvolant mammals in a temperate island archipelago

The structure and connectivity of an archipelagic population of black bears

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