Patterns Of Biodiversity In The Macro-Invertebrate Fauna Associated With Mussel Patches On Rocky Shores

1996 ◽  
Vol 76 (1) ◽  
pp. 203-210 ◽  
Author(s):  
Raymond Seed
Keyword(s):  
Species Richness ◽  
Abundant Species ◽  
Small Scale ◽  
Marine Biodiversity ◽  
Rocky Shores ◽  
Invertebrate Fauna ◽  
Marine Mussels ◽  
High Species Richness ◽  
Global Patterns ◽  
Abundance And Diversity

Marine mussels are widely distributed and have been used extensively as environmental biomonitors. Communities associated with mussel patches have a high species richness but are typically dominated by a few very abundant species. These communities exhibit significant temporal and small-scale spatial variations in abundance and diversity which should be recognized when considering global patterns of marine biodiversity. Many of the species associated with tropical mussel beds are also represented by taxonomically and functionally equivalent species in mussel communities from temperate waters. The phenomenon of ‘parallel communities’ on rocky shores is thus apparently replicated on a finer spatial scale within mussel patches.

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.

Diversity patterns in helminth communities in common gulls, Larus canus

Parasitology ◽  
1989 ◽  
Vol 98 (3) ◽  
pp. 439-445 ◽  
Author(s):  
C. R. Kennedy ◽  
T. A. Bakke
Keyword(s):  
Species Richness ◽  
Parasite Community ◽  
Community Diversity ◽  
Intestinal Helminth ◽  
Component Community ◽  
Core Species ◽  
Helminth Communities ◽  
Species Lists ◽  
High Species Richness ◽  
Abundance And Diversity

SUMMARYThe parameters of species richness, abundance and diversity of the intestinal helminth infracommunities of a sample of 269 Common gulls, Larus canus, were examined over one season at Agdenes, Norway. The communities developed rapidly in unfledged gulls and the diversity parameters were of similar magnitude in immature and adult birds. All parameters were low in the early part of the season, reached maxima in June or July and fluctuated erratically or declined thereafter. Comparison of summary parameters with those from other species of gulls indicated that helminth community diversity in Common gulls is fairly typical of gulls in general. In gulls as a group, helminth communities show common features of high species richness, low abundance, few or no core species and a number of species that occur rarely and in low numbers. Expectations of particularly high parasite community diversity were not fully realised because species lists and diversity of the component community are not a very good basis for predicting diversity at the infracommunity level.

scholarly journals The social wasp community (Hymenoptera, Vespidae) in an area of Atlantic Forest, Ubatuba, Brazil

Check List ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 10 ◽  
Author(s):  
Olga Coutinho Togni ◽  
Gabriela De Almeida Locher ◽  
Edilberto Giannotti ◽  
Orlando Tobias Silveira
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Social Wasp ◽  
Abundant Species ◽  
Southeastern Brazil ◽  
Wasp Species ◽  
The Social ◽  
High Species Richness ◽  
Great Relevance ◽  
Very High

The Brazilian Atlantic Forest is of great relevance to biological conservation, and is among the areas in South America with the highest levels of diversity and endemism. The aim of this study was to survey the social wasp species in the subfamily Polistinae in Ubatuba, São Paulo state, in southwestern Brazil. Collecting work was conducted from May 2007 to May 2008 using attractive PET bottle traps and active searching. Twenty-one species belonging to eight genera were found, among which some may be considered rare in southeastern Brazil such as Mischocyttarus parallelogrammus and Polybia catillifex. The most abundant species were Agelaia angulata (64.31%), Agelaia nr. centralis (10.08%) and Angiopolybia pallens (8.49%). A correlation between species richness and relative humidity (r = 0.6435; p = 0.0176) was observed. Values of species richness were a little higher in the super humid (Sm = 11) than in the less humid (Sm = 9) season. This suggests that this season may have more favorable environmental conditions for a greater richness of species to found colonies. Despite not having a very high species richness compared with other surveys, the collected species in this study can be considered rare in southeastern Brazil, emphasizing the complexity of the Atlantic Forest biome and its relation to the diversity of wasps.

scholarly journals Bat diversity in three roosts in the Coast region of Oaxaca, México

2020 ◽  
Vol 15 (2) ◽  
pp. 135-152
Author(s):  
Itandehui Hernández-Aguilar ◽  
Antonio Santos-Moreno
Keyword(s):  
Species Richness ◽  
Abundant Species ◽  
The State ◽  
Trophic Guilds ◽  
Trophic Guild ◽  
High Species Richness ◽  
Santa Maria ◽  
Bat Diversity ◽  
Coast Region

In this paper, we analyze the richness, abundance, diversity and trophic guilds in a mine (La Mina) and two caves (El Apanguito and Cerro Huatulco) in the municipalities of Pluma Hidalgo and Santa María Huatulco, in the state of Oaxaca, México, a state with high species richness of bats nationwide. Fieldwork was conducted from July 2016 to June 2017. Using a harp trap, we captured 5,836 bats belonging to 14 species, 10 genera and five families. The greatest species richness was found in Cerro Huatulco (12 species), followed by La Mina (nine species) and El Apanguito (four species). Overall, the most abundant species were Pteronotus fulvus (40.59% of captures) and Pteronotus mesoamericanus (32.01%). Half of the species captured corresponded to the insectivore trophic guild. Results show that the three roosts, but particularly Cerro Huatulco and El Apanguito, maintain high species richness and abundances of individuals due to processes that favor colonies of thousands of individuals. We therefore argue that they represent priority roosts for the conservation of bats in the State of Oaxaca.

scholarly journals Aphids and ladybird beetle’s abundance and diversity in alfalfa fields of Yasouj, southwestern of Iran

2017 ◽  
Vol 49 (3) ◽  
Author(s):  
S. Mirfakhraie ◽  
K. Saeidi
Keyword(s):  
Species Richness ◽  
Coccinella Septempunctata ◽  
Abundant Species ◽  
Diversity Indices ◽  
Aphid Species ◽  
Aphis Fabae ◽  
Forage Legume ◽  
Species List ◽  
Medicago Sativa L ◽  
Abundance And Diversity

Alfalfa (Medicago sativa L.) is the oldest and the most important forage legume. It has been cultivated for forage longer than any other crop. Diversity indices provide information about community composition. Diversity indices are measured by species richness and species evenness therefore, it could give us more ecological information rather than a simple species list in the fields. During 2015-2016, aphids and ladybird beetle’s abundance and diversity were monitored in alfalfa fields of Yasouj. Samplings were conducted with 150 plants in the alfalfa fields from mid-May to mid-November. Species richness was measured using Shannon and Simpson indices. In this study, six aphids and five coccinellid species were collected and identified. Among the collected aphid species, Aphis fabae (Scopoli, 1763) and Therioaphis maculata (Buckton, 1899) were most abundant in the fields. For coccinellids, Coccinella septempunctata L. was the most abundant species. Highest aphid species diversity was observed on 17 May 2016.

scholarly journals Rove beetles (Coleoptera: Staphylinidae) of a large pristine peat bog in Belarus Lake District

2018 ◽  
Vol 61 (2) ◽  
pp. 99-104
Author(s):  
Gennadi G. SUSHKO ◽  
Keyword(s):  
Species Richness ◽  
Abundant Species ◽  
The Other ◽  
Peat Bog ◽  
Lake District ◽  
Open Spaces ◽  
Rove Beetles ◽  
Moss Layer ◽  
High Species Richness ◽  
North Western

Species composition and diversity of the rove beetles were studied in main habitats of a large pristine peat bog in Belarus Lake District (North-Western Belarus). Very specific staphylinid assemblages were found. They were characterized by not high species richness and diversity. In these uneven assemblages, a very small number of species: Drusilla canaliculata (Fabricius, 1787), Philonthus cognatus Stephens, 1832, Staphylinus erythropterus Linnaeus, 1758, Ischnosoma splendidus (Gravenhorst, 1806) dominated, while the majority of recorded species were rare. Unlike other inhabitants of the moss layer among the highly abundant species of rove beetles, peat bog specialists were not found. The highest diversity and evenness had the rove beetles assemblages in open spaces. On the other hand, the differences in these assemblages were not high.

Hyperiid amphipod vertical distribution and community structure in the upper 100 m of the northwestern Caribbean Sea

2021 ◽  
Author(s):  
Anahí Domínguez-Nava ◽  
Rebeca Gasca ◽  
Laura Carrillo ◽  
Lourdes Vásquez-Yeomans ◽  
Eduardo Suárez-Morales
Keyword(s):  
Community Structure ◽  
Vertical Distribution ◽  
Environmental Variability ◽  
Principal Component ◽  
Caribbean Sea ◽  
Abundant Species ◽  
Horizontal Distribution ◽  
Small Scale ◽  
Principal Coordinates ◽  
Abundance And Diversity

The community structure and variability of the hyperiid amphipods of the Northwestern Tropical Atlantic (NWTA) remain largely unknown. We described and analyzed the hyperiid nictemeral, vertical, and horizontal distribution and the influence of environmental variables in the upper 100 m of the northwestern Caribbean Sea. We examined 196 zooplankton samples obtained during both day and nighttime at four depth strata from 49 sampling stations in January 2007. Up to 82 hyperiid species including 14 new regional records were identified and quantified. Both day/night and some interstrata differences were significant, particularly in reference to the uppermost and deepest strata. The local hyperiid community structure appeared to be profiled by the frequency and abundance variations of the two most abundant species, Lestrigonus bengalensis and Brachyscelus crusculum, both being most abundant in the uppermost (0–25 m) stratum. The horizontal distribution of the highest hyperiid abundance and diversity appears to be related to the influence of mesoscale processes like upwelling and cyclonic eddies. The Gulf of Honduras area had relatively low hyperiid abundances. The principal component analysis revealed density and temperature as the main factors explaining the local environmental variability. The canonical analysis of principal coordinates (CAP) showed that salinity and temperature strongly influenced the variability of the local hyperiid community. Overall, the two middle vertical strata (25–75 m) were relatively uniform; the main differences were found only between the uppermost and deepest strata. This study is the first to provide information regarding small-scale vertical distribution of hyperiid amphipods in the NWTA.

scholarly journals Coleoptera of Genting Highland, Malaysia: species richness and diversity changes along the elevations

2019 ◽  
pp. 123-144
Author(s):  
M. M. Musthafa ◽  
F. Abdullah
Keyword(s):  
Species Richness ◽  
Cloud Forest ◽  
Abiotic Factors ◽  
Light Trap ◽  
Monitoring Program ◽  
Peninsular Malaysia ◽  
Sampling Effort ◽  
Pitfall Traps ◽  
High Species Richness ◽  
Abundance And Diversity

The objective of this study was to measure beetle richness and diversity in Genting Highland at four major elevations (500 m, 1,000 m, 1,500 m and 1,800 m). Beetles were collected using light traps, malaise traps and pitfall traps. Altogether, 1,499 beetle samples representing 156 morphospecies were collected. Light trap and pitfall traps were more effective than Malaise trap. The 500 m elevation band displayed high species richness, abundance and diversity with all indices showing a decreasing pattern. The species accumulation curve displayed a progressive asymptote for all the altitudinal transects, showing the sampling effort was sufficient for this study. A long-term monitoring program of beetle diversity and distribution is useful to test abiotic factors that might influence biodiversity. This study also serves as a benchmark for further studies on this highly disturbed montane cloud forest in Peninsular Malaysia and will be useful to implement effective conservation management, particularly under the threat of climate change.

scholarly journals Global tropical reef fish richness could decline by around half if corals are lost

2021 ◽  
Vol 288 (1953) ◽  
pp. 20210274
Author(s):  
Giovanni Strona ◽  
Kevin D. Lafferty ◽  
Simone Fattorini ◽  
Pieter S. A. Beck ◽  
François Guilhaumon ◽  
...  
Keyword(s):  
Species Richness ◽  
Reef Fish ◽  
Fish Species ◽  
Reef Fishes ◽  
Small Scale ◽  
Marine Biodiversity ◽  
Fish Diversity ◽  
Reef Fish Species ◽  
Tropical Reef ◽  
Mass Mortalities

Reef fishes are a treasured part of marine biodiversity, and also provide needed protein for many millions of people. Although most reef fishes might survive projected increases in ocean temperatures, corals are less tolerant. A few fish species strictly depend on corals for food and shelter, suggesting that coral extinctions could lead to some secondary fish extinctions. However, secondary extinctions could extend far beyond those few coral-dependent species. Furthermore, it is yet unknown how such fish declines might vary around the world. Current coral mass mortalities led us to ask how fish communities would respond to coral loss within and across oceans. We mapped 6964 coral-reef-fish species and 119 coral genera, and then regressed reef-fish species richness against coral generic richness at the 1° scale (after controlling for biogeographic factors that drive species diversification). Consistent with small-scale studies, statistical extrapolations suggested that local fish richness across the globe would be around half its current value in a hypothetical world without coral, leading to more areas with low or intermediate fish species richness and fewer fish diversity hotspots.

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