pinguicula vulgaris reproduction
Difficulty level: Berendse & Aerts 1987). Please check your email for instructions on resetting your password. Pinguicula, also known as butterworts are a genus of carnivorous plants that grow all over the world. Leaf N resorption efficiency (REFF) differed significantly among species (Table 3) and was on average 40% in P. alpina, 51% in P. villosa and 67% in P. vulgaris and reproductive plants were at least as good as non‐reproductive plants (REFF (R) > REFF (NR) in four of six comparisons, Table 4). Number of times cited according to CrossRef: Functional groups show distinct differences in nitrogen cycling during early stand development: implications for forest management. Each species was studied in the habitat where it is most commonly found, i.e. Seasonal course of nitrogen (N) pool size (µmol N plant−1) of non‐reproductive and reproductive individuals of Pinguicula alpina (a), P. villosa (b) and P. vulgaris (c) during 2 years (1996, 1997). A rosette-forming, insectivorous perennial herb of damp, nutrient-poor habitats, overwintering as a rootless bud. This is significant especially in nutrient‐poor habitats, where lost N can not easily be replenished by uptake from the soil. 1983; Hanslin & Karlsson 1996; Karlsson et al. N uptake from soil or prey to meet the larger N requirements of reproductive individuals may be facilitated by higher prey trapping success of reproductive plants (vs. non‐reproductive) of P. vulgaris (Karlsson et al. Since the tested variables were based on means using data from the different harvests, sample sizes were small (n = 12). The distribution elsewhere is stable. Here they were carefully cleaned and separated into live and senescent tissues and in to leaves, roots, budscales, winter buds and reproductive structures to include both flower and flower stalk. Since MRT and aNP decreased with increasing reproductive allocation, there was no trade‐off between these two variables among the study species. Hence, evidence for demographic costs of reproduction were found in all three species (Svensson et al. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Effects of reproduction on vegetative activity, Evolution of reproductive effort in a metapopulation with local extinctions and ecological succession, Comparative long‐term demography of three species of, Effects of supplementary feeding on growth and reproduction of three carnivorous plant species in a subarctic environment, Somatic cost of reproduction in three carnivorous, The significance of carnivory for the fitness of, Seasonality of nutrient availability in soils of subarctic Mountain Birch woodlands, Swedish Lapland, Growth and nitrogen utilisation in seedlings of mountain birch (, Responses of a carnivorous plant to prey and inorganic nutrients in a Mediterranean environment. Since plant growth in high‐latitude ecosystems may be constrained by a number of environmental factors such as N availability, temperature or precipitation (Chapin & Shaver 1985), the relative importance of these may also vary among years (e.g. N use‐efficiency (NUE) is then simply the product of MRT and aNP. 1978. The average annual N pool in 1996 and 1997 was estimated as a weighted average over the whole year. Seed The photosynthetic NUE, i.e. The leaf N pool of green leaves was 57% and 30% higher in reproductive P. villosa and P. vulgaris, respectively, than in non‐reproductive plants (Table 4) but differences were smaller in P. alpina (c. 10%). Pinguicula alpina is apparently better adapted to high altitude conditions. No statistically significant differences in REFF between reproductive and non‐reproductive plants were found (Table 3). Atlas of north European vascular plants north of the Tropic of Cancer. 3. Most of the cold temperate Pinguicula prefer acid soils. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Life history theory predicts that reproduction incurs costs in terms of future growth and survival. reproduction in Pinguicula vudgaris (Lentibulariaceae) ANNE C. WORLEY* and LAWRENCE D. HARDER Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada T2N IN4 Summary 1 Sexual reproduction, vegetative propagation and growth of Pinguicula vulgaris were monitored at two sites in Alberta, Canada during a single growing season. The shelf life of this product is about twice as long compared to other types of fermented milk, and the fermented milk does not separate in curd and whey after some time in storage, as often found in similar products. Butterwort. In reproductive plants annual N losses were larger than the average N pool size so that each unit of N remained within the plant for less than 1 year (Table 2). Pinguicula esseriana, a Mexican butterwort, is a small carnivorous plant that uses its sticky leaves to catch bugs small bugs. Atlas (239b) Across all species and years, significant losses (mean 14%, range 0–64%) occurred before the maximum N pool size was reached but this proportion depended on the seasonal course of the N pool. Pinguicula vulgaris. They use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutri The catch their prey with sticky, glandular leaves. 1994), thus reducing the amount of N that has to be taken up from the soil. Native: Americas, Europe, northern Asia. No need to register, buy now! N productivity tended to be higher in reproductive (mean: 1808 g mol N−1 year−1, SE = 279, n = 6) than in non‐reproductive individuals (mean: 1042 g mol N−1 year−1, SE = 162, n = 6). We are much indebted to director and staff at the Abisko Scientific Research Station for logistic help and support during this study. Furthermore, reproductive plants of P. alpina showed a higher photosynthetic NUE than non‐reproductive individuals (Méndez & Karlsson 1999). The amount of N found in senescent empty reproductive structures in autumn. 1991, 1994, 1996, Hanslin & Karlsson 1996, Worley & Harder 1996). And useful too! flower and flower stalk) separately (n = 10 for each species, reproductive status and harvest combination). the annual dry matter produced per unit N lost, of three carnivorous species of the genus Pinguicula on an infertile subarctic heath. Reproduction should therefore incur a cost that is expressed as negative consequences either on growth (somatic costs) or future survival and fecundity (reproductive costs, cf. Flowers are on a long stalk to avoid trapping pollinators. 1983; Karlsson et al. In the latter, all losses were due to shed leaves and roots and possible leaching losses. 0-970 m (Beinn Heasgarnich, Mid Perth). New Pinguicula vulgaris, the common butterwort, is a perennial carnivorous plant in the bladderwort family, Lentibulariaceae.It grows to a height of 3–16 cm, and is topped with a purple, and occasionally white, flower that is 15 mm or longer, and shaped like a funnel. Furthermore, it has been suggested that prey capture may increase soil nutrient uptake in carnivorous plants (Aldenius et al. Pinguicula Growing and Care Guide. As we hypothesized, at higher altitudes or in colder environments, … We compared the effect of reproduction on nitrogen (N) turnover and N use‐efficiency, i.e. There is considerable variation in temperature and precipitation between years in the study region (Holmgren & Tjus 1996) that may have an impact on plant growth, nutrient uptake and prey abundance for carnivorous species. Circumpolar Boreal-montane element, with a disjunct distribution. and you may need to create a new Wiley Online Library account. Although plants of such environments often show specific adaptations to improve nutrient acquisition (Ernst 1983; Pate 1994), they are also characterized by a suite of traits that help to reduce nutrient losses from the plant (Berendse & Aerts 1987; Aerts 1990, 1995, 1999; Chapin et al. Mean residence time (MRT, upper panel), annual nitrogen productivity (aNP, middle panel) and nitrogen use‐efficiency (NUE, lower panel) in relation to reproductive allocation of three species of Pinguicula during 2 years. The mean residence time (MRT) of N and annual N productivity (aNP) were calculated as the ratio between average N pool and annual N losses and as the ratio between dry matter productivity and average N pool, respectively (cf. However, there was a trend towards reproductive individuals resorbing equal or larger amounts of N from senescing leaves than non‐reproductive plants (Table 4). The lower N losses in P. alpina in 1996 than in 1997 reflected a relatively small decrease of N pool size between maximum and the winterbud stage, especially in non‐reproductive plants. As a consequence of these patterns reproductive plants mostly showed a shorter mean residence time MRT of N and a higher aNP (Table 2). For P. alpina, its perennial root system that allows for rapid growth during the early part of the growing season when nutrients presumably are in good supply may compensate for some of the extra investment into reproduction. To test for the proposed link between reproduction and nutrient turnover we studied the effect of reproductive status on N use‐efficiency (NUE) of three species of Pinguicula–P. Some grow in moss, others just cracks in the rocks, quite often on north facing cliffs. In general MRT and NUE of subarctic Pinguicula is comparable to published data on N retention of non‐carnivorous herbs (cf. On chronically infertile soils nutrient acquisition is not limited by uptake kinetics of the roots but by the slow diffusion of ions in the soil solution (Nye 1977; Chapin 1980). The studied populations were situated close to permanent plots described in detail by Karlsson et al. Mexican Pinguicula make excellent house plants and are among the easiest carnivorous plants to grow. the level to which N concentrations were reduced in senescent leaves (Killingbeck 1996). In contrast, P. villosa and P. vulgaris showed relatively similar patterns during the 2 years of the study (Fig. We test whether N use‐efficiency of reproductive plants is indeed lower than in non‐reproductive individuals. 1988. In 1996 there was little variation between species in total relative losses due to reproduction, ranging from 68% in P. villosa through 65% in P. alpina to 61% in P. vulgaris (Table 1).


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