Erratum: Ecological segregation of systematically related stream insects

1970 ◽  
Vol 48 (1) ◽  
pp. 183-183
Author(s):  
P. R. Grant ◽  
R. J. Mackay
Keyword(s):  
Ecological Segregation ◽  
Stream Insects

Ecological segregation of systematically related stream insects

1969 ◽  
Vol 47 (4) ◽  
pp. 691-694 ◽  
Author(s):  
P. R. Grant ◽  
R. J. Mackay
Keyword(s):  
Jaccard Coefficient ◽  
Congeneric Species ◽  
Ecological Segregation ◽  
Stream Insects ◽  
Ecological Difference

Insects from a stream at Mont St. Hilaire, Quebec, were sampled monthly for 1 year. The degree of ecological difference between congeneric species in three orders was assessed by using a "coefficient of separation", similar to a modified Jaccard coefficient. It was found that species differed most in their season of occurrence, least in the substrates they occupied. The significance of this result in terms of the avoidance of competition is considered.

scholarly journals Riparian forestry management and adult stream insects

2004 ◽  
Vol 8 (3) ◽  
pp. 545-549 ◽  
Author(s):  
R. A. Briers ◽  
J. H. R. Gee
Keyword(s):  
Riparian Vegetation ◽  
Management Practices ◽  
Food Sources ◽  
Tree Cover ◽  
Strong Impact ◽  
Riparian Management ◽  
Stream Insects ◽  
Larval Stages ◽  
Forestry Management ◽  
Coniferous Plantation

Abstract. The impacts of coniferous plantation forestry on the biology of upland streams in the UK are firmly established. Whilst benthic communities have been well studied, very little research has considered the impacts of riparian forestry management on adult stream insects, yet the essentially terrestrial adult (reproductive) phase may be important in determining the abundance and distribution of larval stages. Riparian vegetation has a potentially strong impact on survival and success of adult stages through alteration of microclimate, habitat structure and potential food sources, in addition to effects carried over from larval stages. Here, current riparian management strategies are analysed in the light of available information on the ecology of adult stream insects. On the whole, management practices appear to favour adult stream insects, although an increase in tree cover in riparian areas could be beneficial, by providing more favourable microclimatic conditions for adults. This conclusion is drawn based on rather limited information, and the need for further research into the effects of riparian forestry management on adult stream insects is highlighted. Keywords: microclimate, plantation, life history, riparian vegetation

Community-level responses by stream insects to neem products containing azadirachtin

2000 ◽  
Vol 19 (4) ◽  
pp. 855-861 ◽  
Author(s):  
David P. Kreutzweiser ◽  
Scott S. Capell ◽  
Taylor A. Scarr
Keyword(s):  
Community Level ◽  
Stream Insects ◽  
Neem Products

scholarly journals Spawning salmon and the phenology of emergence in stream insects

2010 ◽  
Vol 277 (1688) ◽  
pp. 1695-1703 ◽  
Author(s):  
Jonathan W. Moore ◽  
Daniel E. Schindler
Keyword(s):  
Stream Insects

Ecological segregation and vocal interactions in two sympatric Laterallus crakes

2016 ◽  
Vol 158 (2) ◽  
pp. 431-441 ◽  
Author(s):  
Emiliano A. Depino ◽  
Juan I. Areta
Keyword(s):  
Ecological Segregation ◽  
Vocal Interactions

Morphological variation and ecological distribution of co-occurring larval forms of Oreolalax (Anura: Pelobatidae)

1994 ◽  
Vol 15 (2) ◽  
pp. 109-121 ◽  
Author(s):  
H. Bradley Shaffer ◽  
Robert F. Inger ◽  
Guan-Fu Wu ◽  
Er-Mi Zhao
Keyword(s):  
Multivariate Analysis ◽  
Morphological Variation ◽  
Sichuan Province ◽  
Ecological Distribution ◽  
Additional Species ◽  
Maximum Width ◽  
Ecological Segregation ◽  
Number Of Species ◽  
Stream Size

AbstractThe amphibian fauna of Sichuan Province, China, is remarkable for the large number of species of pelobatid frogs, of which species of Oreolalax form a large portion. We have collected larvae of five species of Oreolalax on Mt. Emei, Sichuan, four of these five at a second locality 40 km from Mt. Emei, and larvae of two additional species at a locality 200 km S of Mt. Emei. These tadpoles are very similar to one another morphologically, a conclusion supported by multivariate analysis. We give diagnostic descriptions and a key for the identification of these seven larval forms. All tadpoles of Oreolalax have lotic habits, and the seven species in our study live in small to medium-sized streams (maximum width 8 m). These species show only moderate ecological segregation in terms of stream size and microhabitat type.

scholarly journals Mountain stoneflies may tolerate warming streams: evidence from organismal physiology and gene expression

2019 ◽  
Author(s):  
Scott Hotaling ◽  
Alisha A. Shah ◽  
Kerry L. McGowan ◽  
Lusha M. Tronstad ◽  
J. Joseph Giersch ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Constitutive Expression ◽  
High Elevation ◽  
Cellular Level ◽  
Cellular Stress Response ◽  
Mountain Stream ◽  
Sequencing Data ◽  
Stream Insects ◽  
Short Term Exposure ◽  
Genes Encoding

AbstractRapid glacier recession is altering the physical conditions of headwater streams. Stream temperatures are predicted to rise and become increasingly variable, putting entire meltwater-associated biological communities at risk of extinction. Thus, there is a pressing need to understand how thermal stress affects mountain stream insects, particularly where glaciers are likely to vanish on contemporary timescales. In this study, we tested the critical thermal maximum (CTMAX) of stonefly nymphs representing multiple species and a range of thermal regimes in the high Rocky Mountains, USA. We then collected RNA-sequencing data to assess how organismal thermal stress translated to the cellular level. Our focal species included the meltwater stonefly, Lednia tumana, which was recently listed under the U.S. Endangered Species Act due to climate-induced habitat loss. For all study species, critical thermal maxima (CTMAX > 20°C) far exceeded the stream temperatures mountain stoneflies experience (< 10°C). Moreover, while evidence for a cellular stress response was present, we also observed constitutive expression of genes encoding proteins known to underlie thermal stress (i.e., heat shock proteins) even at low temperatures that reflected natural conditions. We show that high-elevation aquatic insects may not be physiologically threatened by short-term exposure to warm temperatures and that longer term physiological responses or biotic factors (e.g., competition) may better explain their extreme distributions.

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