Leaching and Decomposition of Litter V. Experiments on Leaf Litter of Alnus glutinosa, Fagus silvatica and Quercus robur

Oikos ◽  
1962 ◽  
Vol 13 (2) ◽  
pp. 232 ◽  
Author(s):  
Nils Nykvist
Keyword(s):  
Leaf Litter ◽  
Quercus Robur ◽  
Alnus Glutinosa ◽  
Fagus Silvatica

Elevated UV‐B radiation incident on Quercus robur leaf canopies enhances decomposition of resulting leaf litter in soil

1999 ◽  
Vol 5 (4) ◽  
pp. 403-409 ◽  
Author(s):  
K. K. Newsham ◽  
P. D. Greenslade ◽  
V. H. Kennedy ◽  
A. R. McLeod
Keyword(s):  
Leaf Litter ◽  
Quercus Robur ◽  
Radiation Incident

scholarly journals Biotesting the edafotopes of some species of broad-leaved trees in Ashinskiy state natural biological reserve (Chelyabinsk region)

2020 ◽  
pp. 84-93
Author(s):  
Павел Владимирович Левченко ◽  
Ирина Анатольевна Гетманец ◽  
Владимир Павлович Викторов
Keyword(s):  
Seed Germination ◽  
Leaf Litter ◽  
Test Object ◽  
Quercus Robur ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Acer Platanoides ◽  
Ulmus Glabra ◽  
Chelyabinsk Region ◽  
Biological Reserve

Представлены результаты изучения аллелопатической активности Quercus robur L., Acer platanoides L., Ulmus glabra Huds методом биотестирования. Выявлены различия воздействия аллелохимикатов на прорастание семян и развитие проростков тест-объекта в контролируемых условиях. Показана корреляция концентрации водных вытяжек листового опада и аллелопатического эффекта, оказываемого ими, которая подтверждена анализом функции средней. Here we present the results of studying the allelopathic activity of Quercus robur L., Acer platanoides L., Ulmus glabra Huds by biotesting. We revealed differences in the effect of allelochemicals on seed germination and the development of seedlings of the test object under controlled conditions. The correlation of the concentration of aqueous extracts of leaf litter and the allelopathic effect exerted by them is shown. The mentioned correlation is confirmed by the analysis of the average function.

scholarly journals Kwitnący bluszcz pospolity hedera helix L. w lasach okolic Szadku

2016 ◽  
pp. 337-348
Author(s):  
Leszek Kucharski ◽  
Błażej Chmielewski
Keyword(s):  
Pinus Sylvestris ◽  
Quercus Robur ◽  
Alnus Glutinosa ◽  
Hedera Helix

W lasach gminy Szadek i terenów przyległych stwierdzono 9 stanowisk kwitnącego i owocującego bluszczu pospolitego. Odnotowano na nich 195 kwitnących okazów tego gatunku. Związane są one z siedliskami średnio żyznymi i żyznymi. Najczęściej notowano je w grądach, rzadziej w łęgach. Podporami dla kwitnących okazów Hedera helix najczęściej są: Alnus glutinosa, Quercus robur oraz Pinus sylvestris. Większość stanowisk związana jest z brzegami lasów lub leśnymi drogami. Głównymi czynnikami stymulującymi zakwitanie bluszczu są „ocieplanie się” klimatu oraz fragmentacja powierzchni leśnych.

scholarly journals Forest typological and phytosozological assessment of forest vegetation of Slobozhansky National Park

2020 ◽  
pp. 157-168
Author(s):  
O. Bezrodnova ◽  
I. Tymochko ◽  
І. Solomakha ◽  
О. Chornobrov ◽  
H. Bondarenko
Keyword(s):  
Pinus Sylvestris ◽  
National Park ◽  
Quercus Robur ◽  
Conservation Status ◽  
Alnus Glutinosa ◽  
Pine Forest ◽  
Forest Vegetation ◽  
Left Bank ◽  
Forest Types ◽  
Oak Wood

Forest typological and phytososological biodiversity of forest vegetation of Slobozhansky National Park is shown. The park covers 5244 hectares and includes the main parts of the run off valleys of the left-bank Merla River tributary, which belongs to the Vorskla River basin in the Kharkiv region. The main forest-forming species of the Slobozhansky National Nature Park are Pinus sylvestris L. (2779.3 hectares, 59.84%), Quercus robur L. (1451.8 hectares, 31.26%). Minor areas are occupied by Betula pendula Roth (138.3 hectares, 2.98%), Alnus glutinosa (L.) P. Gaertn. (122.5 hectares, 2.64%), Populus tremula L. (45.0 hectares, 0.97%) and other species. Areas covered with forest vegetation are represented by 16 edatopes: all trophotope and almost all hygrotopes, except very dry. Among the trophotopes subors (2015.2 hectares, 43.39%), oak wood (1504.4 hectares, 32.39%) and sugruds (1042.2 hectares, 22.44%) predominate, and the part of pine forest is insignificant (82.5 hectares, 1.78%). Among hygrotopes, the majority are with fresh conditions (4060.6 hectares, 87.43%), much smaller areas are dry (268.4 hectares, 5.78%), damp (184.3 hectares, 3.97%), moist (124.4 hectares, 2.68%) and wet (6.6 hectares, 0.14%) conditions. There are 17 types of forests in the Slobozhansky National Park areas covered with forest vegetation. Fresh oak-pine forest (1780.6 hectares, 38.35%), fresh maple-linden forest (1453.6 hectares, 31.30%), fresh linden-oak-pine sugrud (756.8 hectares, 16.30%) are dominated. Pinus sylvestris plantations grow in 10 forest types. The most common types of pine forests are fresh oak-pine and fresh linden-oak-pine sugrud. Quercus robur growth in 7 forest types, the most common of which is fresh maple-linden oak wood. The distribution of forest typological differences on the territory of the park of vascular plants rare species populations, which have different sozological status is analyzed. Annex I to Resolution 6 of the Berne Convention includes the following species: Dracocephalum ruyschiana L., Jurinea cyanoides (L.) Rchb., Iris pineticola Klokov. A number of species have the appropriate conservation status in Ukraine (Diphasiastrum complanatum (L.) Holub, Lycopodium annotinum L., Dracocephalum ruyschiana, Pulsatilla pratensis (L.) Mill. Sl, Allium ursinum L., Iris furcata M. Bieb., Iris pineticola, Fritillaria meleagris L., F. ruthenica Wikstr., Tulipa quercetorum Klokov & Zoz, Epipactis helleborine (L.) Crantz, Listera ovata (L.) R. Br., Neottia nidus-avis (L.) Rich., Platanthera bifolia (L.) Rich., Stipa borysthenica Klokov ex Prokudin) and 22 species at the regional range.

The importance of shredding caddis larvae (Trichoptera: Limnephilidae) in leaf litter breakdown

Zoosymposia ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 39-53
Author(s):  
MARTA GELLERT ◽  
KATARZYNA KWIATKOWSKA ◽  
JANUSZ MAJECKI
Keyword(s):  
Leaf Litter ◽  
Laboratory Experiments ◽  
Quercus Rubra ◽  
Alnus Glutinosa ◽  
Leaf Decomposition ◽  
Acer Pseudoplatanus ◽  
Breakdown Rate ◽  
Caddisfly Larvae ◽  
Four Square ◽  
Fallen Leaves

In field and laboratory experiments, we assessed the role of caddisfly larvae in leaf decomposition occurring in headwaters with a focus on the breakdown of alien Quercus rubra leaves. A field experiment was conducted at two sites: in Wolbórka Spring and 150 m downstream. Eight 0.5 x 0.5 m “mats” were constructed. 1m2 of one type of fallen leaves: Quercus robur, Acer pseudoplatanus, Quercus rubra and Alnus glutinosa was placed in each mat. The caddisfly assemblages on the leaf mats consisted of 550 shredder larvae and 394 predatory larvae of Plectrocnemia conspersa. Among the 4 shredder species in both years, the larvae of P. nigricornis dominated on all leaf species at both sites. In the laboratory experiment, ten Vth instar larvae of Potamophylax nigricornis were placed in to each of four square (30 x 30 cm) boxes containing 500 cm2 of Q. robur, A. pseudoplatanus, Q. rubra and A. glutinosa leaves. The length of time of leaf decomposition was measured in the laboratory. The fastest loss of leaf surface was noted with respect to A. glutinosa (in the field as well as in the laboratory). Shredders collected from Q. rubra mats were numerous and the breakdown rate of leaf litter in the field as well as in the laboratory experiments was similar to Q. robur and A. pseudoplatanus. The number of caddis corresponded with the time of decomposition, which in 2014 was 20 days shorter than in 2013.

scholarly journals Leaf litter as a possible food source for chironomids (Diptera) in Brazilian and Portuguese headwater streams

2007 ◽  
Vol 24 (2) ◽  
pp. 442-448 ◽  
Author(s):  
Marcos Callisto ◽  
José F. Gonçalves Jr ◽  
Manuel A. S. Graça
Keyword(s):  
Leaf Litter ◽  
Riparian Vegetation ◽  
Laboratory Experiments ◽  
Food Source ◽  
Alnus Glutinosa ◽  
Chironomid Larvae ◽  
Feeding Experiments ◽  
Chironomid Species ◽  
Consumption Rates ◽  
Potential Use

Our objective was to evaluate the potential use of leaf detritus by chironomid larvae. Field and laboratory experiments were performed using leaves and chironomid species collected in Portugal and Brazil. Laboratory experiments under controlled conditions were done using microbial conditioned senescent leaves of Alnus glutinosa (L.) Gaertn, Neriumoleander L., Protium heptaphilum (Aubl.) March, Protium brasiliense (Spreng) Engl., Myrcia guyanensis(Aubl.) DC and Miconia chartacea Triana. Laboratory experiments were performed using specimens collected from leaf litter in local streams. Whenever possible, after the experiments, chironomids were allowed to emerge as adults and identified. In Portugal the following taxa were identified: Micropsectra apposita (Walker, 1856), Polypedilum albicorne (Meigen, 1838),Eukiefferiella claripennis Lundbeck (1898), Rheocricotopus (Psilocricotopus) atripes Rempel (1937) and Ablabesmyia Johannsen (1905) (Diptera, Chironomidae). Consumption rates ranged from 0.15 ± 0.10 mg (AFDM) of leaf animal-1 day-1 (Micropsectra apposita feeding on Alnus glutinosa) up to 0.85 ± 0.33 mg (AFDM) of leaf animal-1 day-1 (Polypedilum albicorne feeding on Miconia chartacea). In Brazil, the following taxa were identified from leaves: Phaenopsectra sp., Chironomus spp. and Polypedilum sp. and maximum consumption rates reached 0.47 ± 0.28 (AFDM) of leaf mg.animal-1.day-1 (Chironomus Meigen (1803) feeding on Protium heptaphilum). Feeding experiments with laboratory cultured specimens, revealed that some chironomids were unable to feed on decomposing leaves (e.g., C. xanthus Rempel (1939) on P.brasiliensis and M.guyanensis). Our results suggest that some stream chironomids (not typical shredders) can use leaf litter of riparian vegetation as a complementary food source.

Direct Effects of Elevated UV-B Radiation on the Decomposition of Quercus robur Leaf Litter

Oikos ◽  
1997 ◽  
Vol 79 (3) ◽  
pp. 592 ◽  
Author(s):  
K. K. Newsham ◽  
A. R. McLeod ◽  
J. D. Roberts ◽  
P. D. Greenslade ◽  
B. A. Emmett
Keyword(s):  
Leaf Litter ◽  
Quercus Robur ◽  
Direct Effects

Negligible influence of elevated UV-B radiation on leaf litter quality of Quercus robur

2001 ◽  
Vol 33 (4-5) ◽  
pp. 659-665 ◽  
Author(s):  
K.K. Newsham ◽  
P. Splatt ◽  
P.A. Coward ◽  
P.D. Greenslade ◽  
A.R. McLeod ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Quercus Robur ◽  
Litter Quality ◽  
Negligible Influence

scholarly journals Consumption Performance of Five Detritivore Species Feeding on Alnus glutinosa L. Leaf Litter in a Microcosm Experiment

Forests ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 1080 ◽  
Author(s):  
Masoud M. Ardestani ◽  
Vladimír Šustr ◽  
Jan Frouz
Keyword(s):  
Leaf Litter ◽  
Animal Species ◽  
Feeding Activity ◽  
Assimilation Efficiency ◽  
Dry Weight ◽  
Alnus Glutinosa ◽  
Porcellio Scaber ◽  
Leaf Consumption ◽  
Soil Ecosystems ◽  
Consumption Rates

The present study was performed to assess the feeding performance of five detritivore species in a microcosm design. The test animals were four millipede species, Telodeinopus aoutii (Demange), Epibolus pulchripes (Gerstäcker), Cylindroiulus caeruleocinctus (Wood), Glomeris hexasticha (Brandt), and one isopod species, Porcellio scaber (Latreille), all feeding on Alnus glutinosa L. leaf litter for five consecutive weeks. At the end of each one-week interval, litter consumption, animal fresh weight, and excrement production were measured. Then, the feeding activity parameters for each species were calculated. Between big-size animal species, higher leaf consumption rates of 12.3–30.9 mg dry weight day−1 individual−1 were calculated for T. aoutii compared to those of 3.72–8.25 mg dry weight day−1 individual−1 for E. pulchripes. However, there was no difference in the consumption rates among small-size animals ranging from 0.46 to 1.65 mg dry weight day−1 individual−1. Excrement production rates followed a similar trend, as the consumption rates and the animals’ body weight remained constant during the experiment. Time was an important factor influencing the feeding activity of the animals, especially for the big-size group. Overall, the average assimilation efficiency of these species varied from 13.7% to 53.3%. The results of the present work will be the first step for understanding the ecological needs of these decomposer species in soil ecosystems.

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