Enhancing rare plant population predictions through demographic modeling of seed predation, dispersal, and habitat suitability

Wall, Wade A.; Just, Michael G.; Huskins, Stacy D.; Hohmann, Matthew G.

doi:10.1007/s11258-023-01376-4

Cited by 2 publications

(1 citation statement)

References 57 publications

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“…(e.g., L. benzoin (L.) Blume [northern spicebush], L. melissifolia Blume [pondberry]), relatively little is known about L. subcoriacea. However, recent work has revealed that the species has low and uneven fruit production (maturing in early August) among individuals, poor recruitment into larger size classes, and an estimated population growth rate near unity [51,60]. Given what is known about L. subcoriacea and its populations, the species has been classified with a global range rank of G3 (vulnerable) [61].…”

Section: Study System and Speciesmentioning

confidence: 99%

Effects of Landscape Heterogeneity and Disperser Movement on Seed Dispersal

Just,

Wall,

Huskins

et al. 2024

Ecologies

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The primacy of endozoochory for the maintenance and expansion of many woody plant populations is well known, but seed dispersal is not well understood for most species. This is especially true for rare species, where small population size and low fruit production can limit field- or observation-based experiments. Additionally, the effect of environmental heterogeneity on disperser movement is rarely investigated but has been shown to improve estimates of plant population spatial patterns and dynamics. We used simulation experiments to explore the effects of environmental heterogeneity and disperser movement on Lindera subcoriacea seed dispersal, a rare shrub from the southeastern United States with avian-dispersed seeds. Our experiments incorporated environmental heterogeneity and simulated disperser movement for five bird species, based on either landscape permeability or straight path rules. We anticipated that permeability-based movement would result in greater dispersal distances and seed dispersal effectiveness, which characterizes both quantity and quality. Generally, we did not find differences in seed dispersal between permeability and straight path experiments. However, we did find that permeability-based experiments had greater deposition into suitable habitat during flight (23 vs. 1%). These rare but longer distance depositions may be especially important for plants that are influenced by gap or interpopulation dynamics. We also found consistently greater dispersal into high quality habitats regardless of disperser species in permeability experiments, implying that incorporating species-specific assessments of landscape utilization (occupancy) could influence the effectiveness of seed dispersal. Our study suggests that including environmental heterogeneity in seed dispersal models can provide additional insights not provided by avian parameters (e.g., gut capacity, seed retention time, and flight speed) commonly used to inform dispersal models.

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Section: Study System and Speciesmentioning

confidence: 99%

Effects of Landscape Heterogeneity and Disperser Movement on Seed Dispersal

Just,

Wall,

Huskins

et al. 2024

Ecologies

Self Cite

View full text Add to dashboard Cite

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Rapid DNA barcoding‐based fern and lycophyte inventories of protected areas—A pilot study to introduce a simple but effective protocol

Liu,

Chai,

Schneider

2024

Integrative Conservation

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Recording inventories of species conserved in protected areas is a key step to evaluate the effectiveness of Kunming Montreal Global Biodiversity Framework (KM‐GBF) targets, such as the expansion of protected areas. The application of DNA barcoding facilitates the rapid production of enables to obtain rapid inventories with reduced reliance on taxon experts. These inventories aim not only to confirm existing records but also to minimize gaps in our knowledge of the distribution and taxonomy of species targeted for conservation through the implementation of protected areas. This pilot study introduces a simplified DNA barcoding pipeline as a reliable tool for recording fern and lycophyte species occurring in protected areas. The pipeline emphasizes limited and/or short training requirements, reducing the input required from taxon experts and maximizing shared benefits between conservationists and taxonomists. Despite using a single DNA barcoding region, 78% of the accessions were unambiguously identified to the species level. This applied approach not only confirmed previous records but also identified several previously overlooked species, either as newly recorded species conserved in the protected area or as species new to science. The pilot project effectively documented known species diversity and identified gaps in our taxonomic knowledge by discovering previously unknown and locally rare taxa. This rapid assessment enhances productive exchanges between conservation practitioners and taxon experts, with substantial benefits for both parties.

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Enhancing rare plant population predictions through demographic modeling of seed predation, dispersal, and habitat suitability

Cited by 2 publications

References 57 publications

Effects of Landscape Heterogeneity and Disperser Movement on Seed Dispersal

Effects of Landscape Heterogeneity and Disperser Movement on Seed Dispersal

Rapid DNA barcoding‐based fern and lycophyte inventories of protected areas—A pilot study to introduce a simple but effective protocol

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