Geophytes–herbivore interactions: reproduction and population dynamics of Anemone coronaria L.

Perevolotsky, Avi; Schwartz‐Tzachor, Racheli; Yonathan, R.; Ne’eman, Gidi

doi:10.1007/s11258-010-9846-2

Cited by 15 publications

(14 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results are inconsistent with those reported by Perevolotsky et al. (), which showed a positive effect of livestock on the A. coronaria (Perevolotsky et al., ). At the same time, our results accord with Noy‐Meir and Oron (), who reported that A. coronaria is being consumed, to some extent, by livestock animals.…”

Section: Resultscontrasting

confidence: 99%

“…() could be related to the main limiting factor for primary productivity during mid‐to‐late winter, which is the growing season for A. coronaria . While in the Mediterranean region of northern Israel this limiting factor is sunlight (Noy‐Meir & Oron, ; Perevolotsky et al., ), in the drylands of southern Israel, this limiting factor is the soil‐water content (Stavi et al, ). This suggests that in our study, grazing adversely affected the soil‐moisture status, limiting the availability of water for A. coronaria .…”

Section: Resultsmentioning

confidence: 99%

“…Also, they reported that the positive effect of grazing on geophyte diversity was lower in sites with low productivity. Specifically, populations of Anemone coronaria L., which is considered a flagship geophyte species in Israel, have been reported to increase (Perevolotsky et al, ), remain unaffected or decrease (Noy‐Meir & Oron, ) in lands prone to grazing. The increase in abundance of A. coronaria in rangelands was associated with the toxicity of its protoanemonin and anemonin content (Keasar et al., ; Knight & Walter, ), which regulates its consumption by livestock (Wink, ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of livestock grazing on Anemone coronaria L. in drylands: Implications for nature conservation

Stavi

Shuker

Barkai

et al. 2018

Geography and Environment

View full text Add to dashboard Cite

Grazing in nature reserves, or other sensitive lands, could affect the abundance of important plant species. In the Mediterranean basin, the Anemone coronaria is considered a flagship geophyte species. Studies conducted in the Mediterranean region of northern Israel showed that livestock grazing increased the abundance of A. coronaria. This was attributed to the consumption of other herbaceous vegetation species, resulting in better accessibility of A. coronaria to sunlight. Also, it was suggested that consumption of this species is limited due to its toxicity. The objective of this study was to investigate the impact of livestock on the abundance of A. coronaria, and on specific soil properties in a dryland environment, where primary productivity is determined by water availability. A long-term study was established in the Israeli Negev, where early-, mid-, and late-season grazing treatments took place over the course of a decade, and studied over three consecutive years between 2013/ 2014 and 2015/2016. The study revealed that the abundance of A. coronaria followed the order of non-grazing (control) > late-season grazing > mid-season grazing > early-season grazing. However, this effect was not significant (p = .0668).One way or another, the largest adverse impact of early-season grazing is attributed to consuming fresh and not yet toxic shoots of A. coronaria at that phenological stage. The soil properties were studied in summer 2016. The analysis showed a significant increase in bulk density under all of the grazing treatments compared with those in the control plots. It was concluded that, in drylands, trampling over wet soil during the growing season increases its compactability, degrading the soil-moisture status, and limiting A. coronaria abundance. Recommendations for nature conservation in drylands are, therefore, to negate grazing during A. coronaria's early-growing season, as well as shortly after rain events when the soil moisture level is high.

show abstract

Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of livestock grazing on Anemone coronaria L. in drylands: Implications for nature conservation

Stavi

Shuker

Barkai

et al. 2018

Geography and Environment

View full text Add to dashboard Cite

show abstract

“…However, some studies showed that grazing do not affect the fruit number of Anemone coronaria (Perevolotsky et al, 2011), and it can increase the seed production of Ligularia narynensis (Liu et al, 2010). In the four climatic aridity zones that C. stenophylla distributed in the Inner Mongolia Steppe, the seed number and seed yield of C. stenophylla significantly decreased as grazing intensity increased.…”

Section: Effect Of Grazing Intensity On Seed Production Of C Stenophmentioning

confidence: 99%

Effects of grazing intensity on seed production of Caragana stenophylla along a climatic aridity gradient in the Inner Mongolia Steppe, China

et al. 2016

View full text Add to dashboard Cite

As climatic aridity and grazing intensity increases, shrubs play an increasingly important role in grassland ecosystem functioning and services, and its abundance also generally increases. However, the effects of climatic aridity and grazing intensity on sexual reproduction of shrubs in grasslands remain largely unclear. In order to understand the effects of grazing intensity and climatic drought stress, and their interaction on seed production of shrub species, we examined the seed number, seed weight and seed yield of Caragana stenophylla under three grazing intensities (fenced, mild grazing and severe grazing) across a climatic aridity gradient (semi-arid, arid, very arid and intensively arid zones) in the Inner Mongolia Steppe, northern China during 2012-2013. The seed number, seed weight and seed yield gradually increased from the semi-arid to the very arid zones, but decreased from the very arid to the intensively arid zones in fenced plots. The seed number and seed yield decreased from the semi-arid to the intensively arid zones in mild and severe grazing treatment plots, therefore, grazing enhanced the suppression effect of climatic aridity on seed production of C. stenophylla. The seed number and seed yield gradually decreased as grazing intensity increased. The seed weight was highest in severe grazing plots, followed by the mild grazing plots and then the fenced plots. Precipitation varied interannually during the study period. We observed that the seed number, seed weight and seed yield were lower in the low precipitation year (2013) than in the high precipitation year (2012). As climatic drought stress increased, the negative effects of grazing on seed production of C. stenophylla also gradually increased. Our results indicated that climatic drought stress may contribute to the encroachment of C. stenophylla shrub in arid zones by promoting its seed production. However, grazing had negative effects on sexual reproduction of C. stenophylla, and the combined effects of drought stress and grazing seriously suppressed sexual reproduction of C. stenophylla in the intensively arid zone.

show abstract

“…We expect that this correlation is most probably caused by an indirect effect: the plots with higher proportion of forbs are less dense, as the amount of biomass decreases (negative correlation of standing crop and proportion of forbs) and thus seedlings can profit from extra light reaching the ground (as suggested by Perevolotsky et al 2011). However, we can not exclude direct effects: seedling regeneration is more important for forbs than for graminoids (which spread mainly vegetatively, as suggested by observation from the experimental site); consequently, more seedlings support forb recruitment and vice versa (more forbs in established vegetation means higher seed input for recruitment).…”

Section: Discussionmentioning

confidence: 99%

The effect of management on productivity, litter accumulation and seedling recruitment in a Carpathian mountain grassland

Galvánek

Lepš

2011

Plant Ecol

View full text Add to dashboard Cite

The management regime may have a significant impact on the productivity and dynamics of grasslands, but the causal relationships influencing grassland conservation value are still not completely understood. Changes of selected community characteristics, such as standing crop, proportion of forbs in the standing crop, litter amount, litter decomposition and seedling recruitment, were investigated in a 4 year manipulative experiment in a mountain grassland in Slovakia. The aim of the research was to compare changes in newly abandoned sites and sites where restoration measures were applied after 20 years of abandonment. The sites were located in areas containing two vegetation types of the Arrhenatherion alliance (wet Poo-Trisetetum and dry AnthoxanthoAgrostietum) with different moisture regimes. The expected increase of the standing crop after abandonment was rather slow, and more pronounced towards the end of the experiment, and in the wet meadow type (*30% increase). The restoration mowing promoted forb proportions in the biomass, but it did not decrease the standing biomass in the restored grasslands. Strong litter accumulation after abandonment was observed in subsequent years after abandonment, when the amount of litter increased about 100% in abandoned plots. Decrease in litter was also significant after the start of restoration mowing (a decrease from 258 to 159 g m -2 in wet type and from 287 to 147 g m -2 in dry type was noted). Accumulated litter was negatively correlated to seedling recruitment (r = -0.63 at the end of the experiment). The litterbag experiment showed that the wet type has a higher rate of decomposition, with 20% more biomass decomposed during the litter-bag experiment. The experiment confirmed a negative role of litter accumulation on seedling recruitment, with the number of seedlings per m 2 decreasing from 413 to 321 individuals in the abandoned wet-type site. This may lead to a decrease in species richness. Mowing along with raking of mowed biomass may be a useful tool to restore degraded mountain grasslands and to remove accumulated litter from the stands.

show abstract

Geophytes–herbivore interactions: reproduction and population dynamics of Anemone coronaria L.

Cited by 15 publications

References 44 publications

Effects of livestock grazing on Anemone coronaria L. in drylands: Implications for nature conservation

Effects of livestock grazing on Anemone coronaria L. in drylands: Implications for nature conservation

Effects of grazing intensity on seed production of Caragana stenophylla along a climatic aridity gradient in the Inner Mongolia Steppe, China

The effect of management on productivity, litter accumulation and seedling recruitment in a Carpathian mountain grassland

Contact Info

Product

Resources

About