Effect of disturbance and distance from a riparian corridor on spiders in a temperate rainforest

2010 ◽  
Vol 40 (5) ◽  
pp. 904-916 ◽  
Author(s):  
Claudia R. Copley ◽  
Neville N. Winchester
Keyword(s):  
Coniferous Forest ◽  
Species Abundance ◽  
Riparian Ecosystems ◽  
Autocorrelation Analysis ◽  
Ancient Forest ◽  
The Family ◽  
Components Analysis ◽  
Riparian Corridor ◽  
Web Building ◽  
Malaise Traps

In anthropogenically disturbed forested riparian ecosystems that contain vagile organisms, we expect dispersal to be a factor that determines patterns of diversity that differ from similar, but continuous, undisturbed habitats. We studied the effects of habitat alteration on community composition by characterizing the spider assemblage of a riparian corridor in an ancient forest and a regenerating coniferous forest in the Carmanah Valley, Vancouver Island, British Columbia. Spiders were collected over a 15 month period using Malaise traps set along transects perpendicular to Carmanah Creek. We recorded 76 genera and 113 species representing 23 families. In both the regenerating coniferous forest and the ancient forest, a large proportion of the species were of the family Linyphiidae. Species abundance was similar in the two habitats but diversity was greater in the regenerating coniferous forest. The ancient forest was dominated by the web-building guild. Spatial autocorrelation analysis revealed no overall pattern in the species assemblages relative to the riparian corridor. Bray–Curtis similarity measure and principal components analysis results indicate that spider assemblages in the two habitats were significantly different in composition. These results suggest that habitat changes affect assemblages of spiders by altering dispersal, and these responses are evident a decade after disturbance.

Community structure of Anthomyiidae (Diptera) of six peat-bogs in the Šumava Mts (Czech Republic)

Biologia ◽  
2011 ◽  
Vol 66 (3) ◽  
Author(s):  
Olga Komzáková ◽  
Miroslav Barták ◽  
Dana Bartáková ◽  
Štěpán Kubík
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Peat Bogs ◽  
Water Traps ◽  
The Family ◽  
Collecting Methods ◽  
Components Analysis ◽  
Study Sites ◽  
Delia Platura ◽  
Malaise Traps

AbstractThe species composition of the family Anthomyiidae in six peat-bogs in the Šumava Mts is analysed with regards to dominance, constancy, seasonal occurrence and type of distribution of each species. Anthomyiid communities in all sites are compared based on the number of species, species richness, diversity and equitability indices, as well as coefficients of similarity and Principal Components Analysis (PCA). Three collecting methods are compared: yellow pan water traps (439 specimens/43 species), sweeping (93/18) and Malaise traps (97/22). Three species, Pegoplata aestiva (24.17%), Delia platura (14.47%), and Hylemya nigrimana (11.29%) were eudominant, two further species were dominant: Delia cardui (8.74%) and Botanophila fugax (8.27%). Two species, Botanophilia fugax and Delia platura, were found in all study sites. These species, together with those collected in five sites (Delia cardui, Heterostylodes nominabilis and Hylemya vagans), had a constancy rate higher than 75% and belonged to the category of euconstant species.

EVALUATION OF GENETIC FIDELITY FOLLOWING LONG TERM CRYOPRESERVATION OF CONIFEROUS FOREST TREE SPECIES OF THE FAMILY PINACEAE

2014 ◽  
pp. 121-126
Author(s):  
H. Häggman ◽  
S. Sutela ◽  
J. Edesi ◽  
J. Krajňáková ◽  
A. Bertolini ◽  
...  
Keyword(s):  
Tree Species ◽  
Coniferous Forest ◽  
Genetic Fidelity ◽  
Forest Tree ◽  
Forest Tree Species ◽  
The Family

Science, Citizenship, and Humanities in the Ancient Forest of H. J. Andrews

2016 ◽  
Author(s):  
Frederick J. Swanson
Keyword(s):  
Pacific Northwest ◽  
Public Perception ◽  
Coniferous Forest ◽  
Landscape Management ◽  
Conservation Strategies ◽  
The Pacific ◽  
Ancient Forest ◽  
Management Plans ◽  
Long Term Ecological Research ◽  
Us Forest Service

The H. J. Andrews Experimental Forest Long-Term Ecological Research (LTER) program has nurtured a large, highly interdisciplinary community that has been a wonderful seedbed for emergence of ideas from our group, and for my own growth as a scientist, educator, collaborator, and communicator. Collaborations for me as an individual and within the Andrews forest group have grown over the decades: research–land management since the 1950s, ecology–earth sciences since the early 1970s, biophysical sciences–social sciences since the early 1990s, and humanities–arts–sciences over the past dozen years. As a US Forest Service scientist in seamless collaboration with academic and land manager colleagues, the stable yet dynamic community that the LTER program fosters has served as a great platform for connecting science lessons with society through many means, ranging from development of regional conservation strategies and landscape management plans to storytelling. This is a practice of citizenship by individual scientists and by a science-based team. The sustained learning that the LTER program has underwritten gives scientists a foundation for communicating findings from science and discussing their implications with the public, and the forest itself is a great stage for these conversations. I have had a career of immersion in the International Biological Program (IBP) and in the LTER program since its inception. After completing graduate studies in geology in 1972, I had the good fortune to join the early stages of IBP in the Coniferous Forest Biome Project at the H. J. Andrews Experimental Forest (AND) in the Cascade Range of Oregon. Our team of forest and stream ecologists, and a few earth scientists, had the decade of the 1970s to coalesce, mature, and craft stories of the ecosystems of the Pacific Northwest. The Andrews forest was a wonderful place to do that. It has a complex, ancient forest with nearly 100-m tall trees and fast, cold, clear, mountain streams whose beauty and chill takes your breath away. The year 1980 was pivotal for the group in three ways. First, Jerry Franklin led a synthesis of our team’s knowledge of old-growth forests, which set the stage for major transformation in public perception and policy toward federal forests a decade later and, incidentally, changed our lives.

scholarly journals Moths and Butterflies (Lepidoptera) of the Boreal Mixedwood Forest near Lac La Biche, Alberta, Including New Provincial Records

2004 ◽  
Vol 118 (4) ◽  
pp. 530 ◽  
Author(s):  
Greg R. Pohl ◽  
David W. Langor ◽  
Jean-François Landry ◽  
John R. Spence
Keyword(s):  
Species Richness ◽  
New Record ◽  
New Records ◽  
Uv Light ◽  
Light Trap ◽  
Species Abundance ◽  
First Record ◽  
Species List ◽  
The Family ◽  
Boreal Mixedwood Forest

Lepidoptera were collected, primarily via UV light trap, for three seasons in the boreal mixedwood forest near Lac La Biche, Alberta. A total of 11,111 specimens were collected, representing 41 families and 438 species. A species list with flight times is presented. The total Lepidoptera community was estimated to be 546 ± 23.34 species. Abundance and species richness peaked in late July. Thirty-five species constitute new records for Alberta, while one species, Acanthopteroctetes bimaculata, is a new record for Canada, and the first record of the family Acanthopteroctetidae in Canada.

Ecology of Dolichopodidae (Diptera) in a wetland habitat and their potential role as bioindicators

2011 ◽  
Vol 6 (1) ◽  
pp. 118-129 ◽  
Author(s):  
Ivan Gelbič ◽  
Jiří Olejníček
Keyword(s):  
Species Richness ◽  
Potential Role ◽  
Species Abundance ◽  
Abundant Species ◽  
Seasonal Activity ◽  
Wet Meadow ◽  
Emergence Traps ◽  
Abundance And Diversity ◽  
Pan Traps ◽  
Malaise Traps

AbstractEcological investigations of long-legged flies (Dolichopodidae) were carried out in wet meadow wetlands near České Budějovice, Czech Republic. Sampling was performed during the adult flies’ seasonal activity (March–October) in 2002, 2003 and 2004 using yellow pan traps, Malaise traps, emergence traps, and by sweeping. Altogether 5,697 specimens of 78 species of Dolichopodidae were collected, identified and analysed. The study examined community structure, species abundance, and diversity (Shannon-Weaver’s index - H’; Sheldon’s equitability index - E). Chrysotus cilipes, C. gramineus and Dolichopus ungulatus were the most abundant species in all three years. Species richness and diversity seem strongly affected by soil moisture.

scholarly journals Tropane alkaloids and calystegines as chemotaxonomic markers in the Solanaceae

2015 ◽  
Vol 87 (4) ◽  
pp. 2139-2149 ◽  
Author(s):  
Aline G.S. Pigatto ◽  
Carolina C. Blanco ◽  
Lilian A. Mentz ◽  
Geraldo L.G. Soares
Keyword(s):  
Tropane Alkaloids ◽  
Diversity Indices ◽  
Chemical Diversity ◽  
Hand Search ◽  
The Family ◽  
Chemotaxonomic Markers ◽  
Index Terms ◽  
Components Analysis ◽  
And Cluster Analysis

ABSTRACT This study assessed the occurrence and distribution of tropane alkaloids and calystegines in genera of the family Solanaceae to identify patterns of distribution and make evolutionary inferences. A database of tropane alkaloids and calystegines occurrences was constructed from the results of a search of scientific websites and a hand search of periodicals. The terms "Solanaceae", "tropane alkaloids", and "calystegines" were used as index terms for a full-text article search unrestricted by date of publications. The number of occurrence and chemical diversity indices were calculated and cluster analysis and principal components analysis were performed. Overall, 996 occurrences were reported, 879 of tropane alkaloids (88.3%) and 117 of calystegines (11.7%). The calystegines were significantly more relevant than tropane alkaloids for characterization of distinct groups of genera on both analyses performed here. This corroborates the trend toward a chemical dichotomy observed on database analysis and somewhat reinforces the correlation between geographic distribution and occurrence of secondary metabolites, as the presence of calystegines alone (without tropane alkaloids) was only reported in genera that have South America as their center of diversity.

scholarly journals Expedited Assessment of Terrestrial Arthropod Diversity by Coupling Malaise Traps with DNA Barcoding

2017 ◽  
Author(s):  
JR deWaard ◽  
V Levesque-Beaudin ◽  
SL deWaard ◽  
NV Ivanova ◽  
JTA McKeown ◽  
...  
Keyword(s):  
Dna Barcoding ◽  
National Park ◽  
High Throughput Sequencing ◽  
Species Abundance ◽  
List Type ◽  
Arthropod Diversity ◽  
Sequencing Technologies ◽  
Data Release ◽  
Speed And Accuracy ◽  
Malaise Traps

SummaryMonitoring changes in terrestrial arthropod communities over space and time requires a dramatic increase in the speed and accuracy of processing samples that cannot be achieved with morphological approaches.The combination of DNA barcoding and Malaise traps allows expedited, comprehensive inventories of species abundance whose cost will rapidly decline as high-throughput sequencing technologies advance.Aside from detailing protocols from specimen sorting to data release, this paper describes their use in a survey of arthropod diversity in a national park that examined 20,000 specimens representing 2200 species.These protocols can support arthropod monitoring programs at regional, national, and continental scales.

scholarly journals Peranan Padang Lamun Selatan Bali Sebagai Pendukung Kelimpahan Ikan di Perairan Bali

2017 ◽  
Vol 3 (1) ◽  
pp. 10
Author(s):  
Elok Faiqoh ◽  
Dwi Budi Wiyanto ◽  
I Gede Budi Astrawan
Keyword(s):  
Species Abundance ◽  
Coastal Areas ◽  
Nursery Ground ◽  
Seagrass Ecosystem ◽  
The Family ◽  
Sea Grass ◽  
Seagrass Ecosystems ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium

Seagrass ecosystem is providing feeding ground, nursery ground, spawning ground , habitat and shelter area. The threat of physical destruction such as the reclamation, pollution, sedimentation and tourism activities decreasing the diversity and the abundance of fishery commodities. The purpose of this study was to describe the condition of seagrass, determine the composition and abundance of seagrass fish in the three Southern coast of Bali and assess the association of fish-sea grass. Samples were taken from three coastal areas, Samuh, Shindu and Serangan coastal area. The results are in Samuhthere are 6 types of seagrass, in Shindu there are 7 types and in Serangan there are three types, whichdominates with Cymodocea rotundata and Syringodium isoetifolium. From the three coastal areas,we found 21 families of fish, where the family Pomacentridaehas the highest species abundance in Samuh, Apogon sp in Serangan and Terapon sp. found in Shindu. We can see the interaction between the seagrass ecosystems of coral reefs in the waters of South Bali and ecological role of seagrass from the family and species of fish.

scholarly journals Study on vermetid worm shells in Mon coastal area of Myanmar

Bionatura ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 960-965
Author(s):  
Oo Naung Naung
Keyword(s):  
Standard Deviation ◽  
Species Composition ◽  
Shallow Water ◽  
Coastal Area ◽  
Species Abundance ◽  
Rock Pool ◽  
Zonal Distribution ◽  
The Family ◽  
Hard Substrates

Vermetid worm shell of Thylacodes decussatus (Gmelin, 1791) belonging to genus Thylacodes Guettard, 1770 under the family Vermetidae collected at Kyaikkhami, Setse, Kawdut, Sitaw and Kabyarwa in Mon coastal area from January to December 2018. A total of 2561 individuals collected from rocky hard substrates, boulders, rock pool, and water-leveled benches of supra-tidal to lower sub-tidal levels. Regarding percentage species composition, September was maximum species composition, and April was minimum species composition. The range of mean was 47.67-28.67 (September-April), and the standard deviation was 40.66-18.06 (November-February). Maximum and minimum species abundance were recorded in Kawdut coastal area (792 individuals) and Sitaw coastal area (207 individuals), respectively. Moreover, the habitats, zonal distribution and coiling patterns of worm shells in intertidal and shallow water environments of Mon coastal area were studied in brief.

Sign in / Sign up

Export Citation Format

Share Document