Trees, Shrubs & Herbivores
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Native ungulates of diverse body sizes collectively regulate long-term woody plant demography and structure of a semi-arid savanna - Sankaran - 2013 - Journal of Ecology - Wiley Online Library

Native ungulates of diverse body sizes collectively regulate long-term woody plant demography and structure of a semi-arid savanna - Sankaran - 2013 - Journal of Ecology - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it

"In semi-arid rangelands, intact communities of native browsing ungulates ... provide a critical ecosystem service by regulating woody cover, and their removal (or extinction) from these systems can lead to rapid woody encroachment."

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Trees, Shrubs & Herbivores
Highlighting journal articles relevant to plant-herbivore interactions in savannas and other wooded ecosystems of the world (and other interesting information on plants and herbivores)
Curated by Peter Scogings
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Message from the curator

Message from the curator | Trees, Shrubs & Herbivores | Scoop.it

Dear Reader, Thank you for viewing my Scoop.it page. This page is where I share links to many of the articles that attract my attention and that I add to my library of journal articles, which is stored in a shared Dropbox folder. When I scoop an article, I might also quote a sentence or two from the abstract that I feel most eloquently summarises the key findings of the article. Visit my Yolasite page to read about my research, find abstracts of my publications on Academia, or connect with me on LinkedIn or Twitter. All the best, Peter.

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ibs's comment, January 17, 2013 10:12 AM
Hi, do you have a blog? I like your research and would like to read more of your stuff.
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Legacy effects of top–down disturbances on woody plant species composition in semi‐arid systems

Legacy effects of top–down disturbances on woody plant species composition in semi‐arid systems | Trees, Shrubs & Herbivores | Scoop.it
while species richness does not appear to be influenced by long-term, top–down disturbance regimes, species community composition may be responsive to these disturbances. Most species and structural classes persisted across all disturbance regimes, but the long-term effects of top–down disturbances can influence compositional and structural biodiversity.
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Herbivore effects on productivity vary by guild: cattle increase mean productivity while wildlife reduce variability

Herbivore effects on productivity vary by guild: cattle increase mean productivity while wildlife reduce variability | Trees, Shrubs & Herbivores | Scoop.it
replacing wildlife with cattle (at moderate densities) could lead to similarly productive but more heterogeneous herbaceous plant communities in rangelands.
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A whole‐plant perspective reveals unexpected impacts of above‐ and belowground herbivores on plant growth and defense

A whole‐plant perspective reveals unexpected impacts of above‐ and belowground herbivores on plant growth and defense | Trees, Shrubs & Herbivores | Scoop.it
plants that suffered aboveground herbivory responded with aboveground growth but belowground defense. Similarly, belowground herbivory resulted in root growth but elevated defenses of leaves.
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The symbionts made me do it: legumes are not hardwired for high nitrogen concentrations but incorporate more nitrogen when inoculated

The symbionts made me do it: legumes are not hardwired for high nitrogen concentrations but incorporate more nitrogen when inoculated | Trees, Shrubs & Herbivores | Scoop.it
Understanding the drivers of legume N concentrations is essential to understanding the role of N fixers in community- and ecosystem-level processes.
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Warming combined with more extreme precipitation regimes modifies the water sources used by trees

Warming combined with more extreme precipitation regimes modifies the water sources used by trees | Trees, Shrubs & Herbivores | Scoop.it
Warming impairs juniper uptake of deep sources during extended dry periods. Precipitation reduction alters the uptake of shallow sources following extended droughts for piñon. Shifts in water sources may not compensate for climate change impacts on tree physiology.
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Inducible De Novo Biosynthesis of Isoflavonoids in Soybean Leaves by Spodoptera litura Derived Elicitors: Tracer Techniques Aided by High Resolution LCMS

Inducible De Novo Biosynthesis of Isoflavonoids in Soybean Leaves by Spodoptera litura Derived Elicitors: Tracer Techniques Aided by High Resolution LCMS | Trees, Shrubs & Herbivores | Scoop.it
The quantitative analysis of isoflavone de novo biosynthesis, with respect to both aglycones and conjugates, affords a useful bioassay system for the discovery of additional plant defense elicitor(s) in S. litura gut contents that specifically promote hydrolysis of isoflavone conjugates.
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Functional groups’ performances as influenced by nitrogen, phosphorus and nodule inhibition of legumes

Functional groups’ performances as influenced by nitrogen, phosphorus and nodule inhibition of legumes | Trees, Shrubs & Herbivores | Scoop.it
the high N concentrations found in legumes are a physiological characteristic of this specific group of plants.
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Nutrient supply alters goldenrod's induced response to herbivory - Burghardt - 2016 - Functional Ecology - Wiley Online Library

Nutrient supply alters goldenrod's induced response to herbivory - Burghardt - 2016 - Functional Ecology - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
Quantifying plasticity in defensive strategy in concert with correlated whole-plant trait expression changes across multiple abiotic and biotic factors may be key to providing a mechanistic understanding of how heterogeneous landscapes impact community interactions and ecosystem processes.
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Elephants in the understory: opposing direct and indirect effects of consumption and ecosystem engineering by megaherbivores - Coverdale - 2016 - Ecology - Wiley Online Library

Elephants in the understory: opposing direct and indirect effects of consumption and ecosystem engineering by megaherbivores - Coverdale - 2016 - Ecology - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
results offer a counterpoint to concerns about the deleterious impacts of elephant “overpopulation” that should be considered in debates over wildlife management in African protected areas: understory species comprise the bulk of savanna plant biodiversity, and their responses to elephants are buffered by the interplay of opposing consumptive and non-consumptive interactions.
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Stage-dependent effects of browsing by snowshoe hares on successional dynamics in a boreal forest ecosystem - Olnes - 2016 - Ecosphere - Wiley Online Library

Stage-dependent effects of browsing by snowshoe hares on successional dynamics in a boreal forest ecosystem - Olnes - 2016 - Ecosphere - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
research has indicated that hares facilitate floodplain succession in the forward direction. However, hare herbivory can also retard succession by depressing white spruce establishment and increase the time individual trees spend in the understory.
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Linking landscape-scale differences in forage to ungulate nutritional ecology - Proffitt - 2016 - Ecological Applications - Wiley Online Library

Linking landscape-scale differences in forage to ungulate nutritional ecology - Proffitt - 2016 - Ecological Applications - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
Elk in the study area exposed to lower summer range nutritional resources had lower nutritional condition entering winter. These differences in nutritional condition resulted in differences in pregnancy rate, with average pregnancy rates of 89% for elk exposed to higher nutritional resources and 72% for elk exposed to lower nutritional resources.
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Utilization of the SAVANNA model to analyze future patterns of vegetation cover in Kruger National Park under changing climate

Utilization of the SAVANNA model to analyze future patterns of vegetation cover in Kruger National Park under changing climate | Trees, Shrubs & Herbivores | Scoop.it
Resilience to climate change differs in woody and herbaceous groups with spatial trends closely following a north-south climate gradient.
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Determinants of patchiness of woody vegetation in an African savanna

Determinants of patchiness of woody vegetation in an African savanna | Trees, Shrubs & Herbivores | Scoop.it
Whereas overall woody cover and its patchiness are two independent aspects of savanna woody vegetation patterns, both need to be investigated to obtain a good understanding of the functioning and diversity of savanna ecosystems.
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Demography of woody species in a semi-arid African savanna reserve following the re-introduction of elephants

Demography of woody species in a semi-arid African savanna reserve following the re-introduction of elephants | Trees, Shrubs & Herbivores | Scoop.it
Three shrub and eight tree species were identified as vulnerable to local extirpation owing to a combination of high mortality and poor regeneration that is likely to result in a considerably simplified system. Reintroduction of elephants into medium-sized reserves without regulation of their numbers may not be a desirable action.
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Secondary metabolites and nutrients of woody plants in relation to browsing intensity in African savannas - Oecologia, Volume 167, Number 4 - SpringerLink

Secondary metabolites and nutrients of woody plants in relation to browsing intensity in African savannas - Oecologia, Volume 167, Number 4 - SpringerLink | Trees, Shrubs & Herbivores | Scoop.it

"The model suggests that species with low allocation of C to C-based defence traits become C-limited (potentially more palatable) at higher browsing intensity than species with high allocation of C to C-based defences. The model also suggests that when N availability is high, plants become C-limited at higher browsing intensity than when N availability is low."

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Savanna tree-grass interactions: A phenological investigation of green-up in relation to water availability over three seasons

Savanna tree-grass interactions: A phenological investigation of green-up in relation to water availability over three seasons | Trees, Shrubs & Herbivores | Scoop.it
Trees take advantage of periods of low competition from herbaceous neighbours at the end of the dry season prior to the onset of seasonal rainfall, and potentially at the end of the growing season when seasonal rainfall concludes through the uncoupling of their green-up cue from seasonal water availability.
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Pre‐rain green‐up is ubiquitous across southern tropical Africa: implications for temporal niche separation and model representation

Pre‐rain green‐up is ubiquitous across southern tropical Africa: implications for temporal niche separation and model representation | Trees, Shrubs & Herbivores | Scoop.it
These results are consistent with a high degree of local phenological adaptation, and an insolation trigger of green-up.
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Biotic drivers of seedling establishment in Neotropical savannas: selective granivory and seedling herbivory by leaf‐cutter ants as an ecological filter

Biotic drivers of seedling establishment in Neotropical savannas: selective granivory and seedling herbivory by leaf‐cutter ants as an ecological filter | Trees, Shrubs & Herbivores | Scoop.it
ants may therefore be acting as an ecological filter, which coupled with potential selectivity in foraging on reproductive life-history stages, may ultimately influence the relative abundance of different species and hence the structure and composition of Cerrado vegetation.
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Source of inorganic N affects the cost of growth in a legume tree species (Virgilia divaricata) from the Mediterrean-type Fynbos ecosystem

Source of inorganic N affects the cost of growth in a legume tree species (Virgilia divaricata) from the Mediterrean-type Fynbos ecosystem | Trees, Shrubs & Herbivores | Scoop.it
dependence on N2 fixation decreased with addition of N
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Seasonal variations drive short‐term dynamics and partitioning of recently assimilated carbon in the foliage of adult beech and pine

Seasonal variations drive short‐term dynamics and partitioning of recently assimilated carbon in the foliage of adult beech and pine | Trees, Shrubs & Herbivores | Scoop.it
Early in the growing season, new foliage acted as a strong C sink in both species, but although young leaves and needles were already photosynthesizing, the latter were still supplied with previous-year needle photosynthates 2 months after budburst. Mean 13C residence times (MRT) were minimal in summer, indicating fast photosynthate export to supply perennial organ growth in both species.
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Dynamics of non-structural carbohydrates in terrestrial plants: a global synthesis - Martínez-Vilalta - 2016 - Ecological Monographs - Wiley Online Library

Dynamics of non-structural carbohydrates in terrestrial plants: a global synthesis - Martínez-Vilalta - 2016 - Ecological Monographs - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
whereas starch acts mostly as a reservoir for future use, soluble sugars perform immediate functions (e.g., osmoregulation) and are kept above some critical threshold.
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Large herbivores promote habitat specialization and beta diversity of African savanna trees - Pringle - 2016 - Ecology - Wiley Online Library

Large herbivores promote habitat specialization and beta diversity of African savanna trees - Pringle - 2016 - Ecology - Wiley Online Library | Trees, Shrubs & Herbivores | Scoop.it
ongoing declines in large-herbivore populations may relax spatial heterogeneity in plant assemblages and reduce the beta diversity of communities.
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Latitudinal Gradients in Induced and Constitutive Resistance against Herbivores

Latitudinal Gradients in Induced and Constitutive Resistance against Herbivores | Trees, Shrubs & Herbivores | Scoop.it
Overall, both latitude and induction have an impact on different metrics of plant resistance to herbivory.
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Follow your nose: leaf odour as an important foraging cue for mammalian herbivores

Follow your nose: leaf odour as an important foraging cue for mammalian herbivores | Trees, Shrubs & Herbivores | Scoop.it
Odour cues play a critical role in food-finding by swamp wallabies, and these animals are finely tuned to detecting these cues
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Effects of defoliation and site quality on growth and defenses of Pinus pinaster and P. radiata

Effects of defoliation and site quality on growth and defenses of Pinus pinaster and P. radiata | Trees, Shrubs & Herbivores | Scoop.it
there was no evidence for delayed inducible defenses in either pine species following PPM defoliation; both species seem to use other defensive strategies to counter predictable attacks by the herbivore.
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