Log in

Relevant bibliographies by topics / Enallage / Journal articles

To see the other types of publications on this topic, follow the link: Enallage.

Journal articles on the topic 'Enallage'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Enallage.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zhgun, Dar'ya Aleksandrovna, and Alfredo Oquendo. "ENALLAGE AS A MEANS OF EXPRESSING EMOTIONAL STATES IN LITERARY DISCOURSE (BASED ON ENGLISH FICTION)." Philological Sciences. Issues of Theory and Practice, no. 10-1 (October 2018): 94–97. http://dx.doi.org/10.30853/filnauki.2018-10-1.19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Grimes, Melanie J. "Enallagma carunculatum." Homoeopathic Links 18, no. 1 (2005): 41–44. http://dx.doi.org/10.1055/s-2005-837477.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Forbes, Mark R. L. "Female morphs of the damselfly Enallagma boreale Selys (Odonata: Coenagrionidae): a benefit for androchromatypes." Canadian Journal of Zoology 69, no. 7 (July 1, 1991): 1969–70. http://dx.doi.org/10.1139/z91-272.

Full text

Abstract:

Females of the coenagrionid damselfly Enallagma boreale Selys occur as three distinct colour morphs at a study site in eastern Ontario, Canada; > 65% are blue (termed androchromatypes) like the conspecific male, ca. 30% are green, and < 5% have both blue and green on their abdomen. I provide experimental evidence which suggests that one advantage of androchromatypism is avoidance of harassment from heterospecific males of the congeneric damselfly Enallagma ebrium (Hagen).

APA, Harvard, Vancouver, ISO, and other styles

4

BOURRET, A., M. A. McPEEK, and J. TURGEON. "Regional divergence and mosaic spatial distribution of two closely related damselfly species (Enallagma hageni and Enallagma ebrium)." Journal of Evolutionary Biology 25, no. 1 (November 28, 2011): 196–209. http://dx.doi.org/10.1111/j.1420-9101.2011.02418.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Catling, Paul M. "Dragonflies (Odonata) Emerging from Brackish Pools in Saltmarshes of Gaspé, Quebec." Canadian Field-Naturalist 123, no. 2 (April 1, 2009): 176. http://dx.doi.org/10.22621/cfn.v123i2.932.

Full text

Abstract:

Enallagma hageni, Lestes disjunctus, Sympetrum costiferum, Sympetrum danae, Sympetrum internum, and Sympetrum obtrusum were observed emerging from brackish pools with an overall salinity range of 6.0-17.3 ppt in three saltmarshes in Gaspé, Quebec. Lestes congener, Libellula quadrimaculata, and species of Sympetrum were prominent among the larvae in these pools.

APA, Harvard, Vancouver, ISO, and other styles

6

Baker, Robert L. "Estimating food availability for larval dragonflies: a cautionary note." Canadian Journal of Zoology 64, no. 4 (April 1, 1986): 1036–38. http://dx.doi.org/10.1139/z86-154.

Full text

Abstract:

Fecal pellets produced by larvae of Enallagma ebrium and Ischnura verticalis given ad libitum feedings of enchytraeid worms were heavier than pellets produced by larvae given ad libitum feedings of Daphnia magna. Dependence of pellet weight on food type has marked implications for indices of food limitation for larval dragonflies.

APA, Harvard, Vancouver, ISO, and other styles

7

Johansson, Frank. "Latitudinal shifts in body size of Enallagma cyathigerum (Odonata)." Journal of Biogeography 30, no. 1 (January 2003): 29–34. http://dx.doi.org/10.1046/j.1365-2699.2003.00796.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

McPeek, Mark A. "Differential Dispersal Tendencies among Enallagma damselflies (Odonata) Inhabiting Different Habitats." Oikos 56, no. 2 (October 1989): 187. http://dx.doi.org/10.2307/3565335.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

McGuffin, Merrylee Ann, Robert L. Baker, and Mark R. Forbes. "Detection and Avoidance of Fish Predators by Adult Enallagma Damselflies." Journal of Insect Behavior 19, no. 1 (January 2006): 77–91. http://dx.doi.org/10.1007/s10905-005-9013-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mlynarek, Julia J. "Testing the enemy release hypothesis in a native insect species with an expanding range." PeerJ 3 (November 19, 2015): e1415. http://dx.doi.org/10.7717/peerj.1415.

Full text

Abstract:

The enemy release hypothesis (ERH) predicts that the spread of (invasive) species will be facilitated by release from their enemies as they occupy new areas. However, the ERH is rarely tested on native (non-invasive, long established) species with expanding or shifting ranges. I tested the ERH for a native damselfly (Enallagma clausum) whose range has recently expanded in western Canada, with respect to its water mite and gregarine parasites. Parasitism levels (prevalence and intensity) were also compared betweenE. clausumand a closely related species,Enallagma boreale, which has long been established in the study region and whose range is not shifting. A total of 1,150 damselflies were collected at three ‘old’ sites forE. clausumin Saskatchewan, and three ‘new’ sites in Alberta. A little more than a quarter of the damselflies collected were parasitized with, on average, 18 water mite individuals, and 20% were parasitized by, on average, 10 gregarine individuals. I assessed whether the differences between levels of infection (prevalence and intensity) were due to site type or host species. The ERH was not supported:Enallagma clausumhas higher or the same levels of parasitism in new sites than old sites. However,E. borealeseems to be benefitting from the recent range expansion of a native, closely related species through ecological release from its parasites because the parasites may be choosing to infest the novel, potentially naïve, host instead of the well-established host.

APA, Harvard, Vancouver, ISO, and other styles

11

Rathod, Darshana M., and B. M. Parasharya. "Odonate diversity of Nalsarovar Bird Sanctuary - a Ramsar site in Gujarat, India." Journal of Threatened Taxa 10, no. 8 (July 26, 2018): 12117. http://dx.doi.org/10.11609/jott.4017.10.8.12117-12122.

Full text

Abstract:

Odonate diversity of Nalsarovar Bird Sanctuary, a Ramsar site in Gujarat, was studied between January 2015 and July 2017. A total of 46 species belonging to two suborders, six families, and 27 genera were recorded, which included 14 species of Zygoptera (damselfly) and 32 species of Anisoptera (dragonfly). Out of the 46 species, 40 species are new records for the Nalsarovar Bird Sanctuary. The record of Enallagma cyathigerum Charpentier, 1840 in Gujarat needs verification. Need to monitor changes taking place in Odonata species composition after influx from Narmada canal at Nalsarovar is emphasized.

APA, Harvard, Vancouver, ISO, and other styles

12

Trost, Barry M., and Koyo Matsuda. "A biomimetic synthesis of (.+-.)-petiodial. A novel palladium-catalyzed enallene cyclization." Journal of the American Chemical Society 110, no. 15 (July 1988): 5233–35. http://dx.doi.org/10.1021/ja00223a075.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

McPeek, Mark A. "Behavioral Differences between Enallagma Species (Odonata) Influencing Differential Vulnerability to Predators." Ecology 71, no. 5 (October 1990): 1714–26. http://dx.doi.org/10.2307/1937580.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Forbes, Mark R. L. "Ectoparasites and Mating Success of Male Enallagma ebrium Damselflies (Odonata: Coenagrionidae)." Oikos 60, no. 3 (April 1991): 336. http://dx.doi.org/10.2307/3545076.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

RUNDLE, SIMON D., DAVID T. BILTON, JOHN C. ABBOTT, and ANDREW FOGGO. "Range size in North American Enallagma damselflies correlates with wing size." Freshwater Biology 52, no. 3 (March 2007): 471–77. http://dx.doi.org/10.1111/j.1365-2427.2006.01712.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Turgeon, J., and M. A. McPeek. "Phylogeographic analysis of a recent radiation of Enallagma damselflies (Odonata: Coenagrionidae)." Molecular Ecology 11, no. 10 (October 2002): 1989–2001. http://dx.doi.org/10.1046/j.1365-294x.2002.01580.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Tilden, Andrea R., Wendy J. Anderson, and Victor H. Hutchison. "Melatonin in two species of damselfly, Ischnura verticalis and Enallagma civile." Journal of Insect Physiology 40, no. 9 (September 1994): 775–80. http://dx.doi.org/10.1016/0022-1910(94)90006-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Mortensen, Lisa, and Jean M. L. Richardson. "Effects of Chemical Cues on Foraging in Damselfly Larvae, Enallagma antennatum." Journal of Insect Behavior 21, no. 4 (March 13, 2008): 285–95. http://dx.doi.org/10.1007/s10905-008-9125-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Baker, Robert L. "EFFECTS OF DENSITY, DISTURBANCE, AND WASTE PRODUCTS ON GROWTH OF LARVAL ENALLAGMA EBRIUM (HAGEN) (ODONATA: COENAGRIONIDAE)." Canadian Entomologist 118, no. 4 (April 1986): 325–28. http://dx.doi.org/10.4039/ent118325-4.

Full text

Abstract:

AbstractIndividual growth rates of larval dragonflies can exhibit density dependence under field conditions. Retarded growth can occur despite an apparent abundance of food and may be due to some form of stress caused by aggressive interactions. I used laboratory experiments to test for effects of larval density, accumulated waste products, and disturbance on growth of larval Enallagma ebrium given abundant food. Experimental treatments had no clear effect on larval weight, size, or duration in an instar. Thus aggressive interactions, in the absence of food limitation, may not be important in affecting growth rates of larval odonates.

APA, Harvard, Vancouver, ISO, and other styles

20

Tennessen, K. J. "THE LARVAE OF ENALLAGMA DAVISI WESTFALL AND E. RECURVATUM DAVIS (ODONATA: COENAGRIONIDAE)." Journal of the New York Entomological Society 113, no. 3 & 4 (October 2005): 205–11. http://dx.doi.org/10.1664/0028-7199(2005)113[0205:tloedw]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

McPeek, Mark A. "Determination of Species Composition in the Enallagma Damselfly Assemblages of Permanent Lakes." Ecology 71, no. 1 (February 1990): 83–98. http://dx.doi.org/10.2307/1940249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Callahan, Melissa S., and Mark A. McPeek. "Multi-locus phylogeny and divergence time estimates of Enallagma damselflies (Odonata: Coenagrionidae)." Molecular Phylogenetics and Evolution 94 (January 2016): 182–95. http://dx.doi.org/10.1016/j.ympev.2015.08.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Bried, Jason T., and Adam M. Siepielski. "Opportunistic data reveal widespread species turnover in Enallagma damselflies at biogeographical scales." Ecography 41, no. 6 (September 13, 2017): 958–70. http://dx.doi.org/10.1111/ecog.03419.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Zhang, Li, Xiao-Tong Wang, Chun-Li Wen, Meng-Yao Wang, Xing-Zhuo Yang, and Ming-Long Yuan. "The complete mitochondrial genome of Enallagma cyathigerum (Odonata: Coenagrionidae) and phylogenetic analysis." Mitochondrial DNA Part B 2, no. 2 (September 9, 2017): 640–41. http://dx.doi.org/10.1080/23802359.2017.1375879.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

RICHARDSON, SARAH, and J. JANOVY. "Actinocephalus carrilynnaeN. Sp. (Apicomplexa: Eugregarinorida) from the Blue Damselfly,Enallagma civile(Hagen)." Journal of Protozoology 37, no. 6 (November 1990): 567–70. http://dx.doi.org/10.1111/j.1550-7408.1990.tb01266.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Brown, Allison L., and Beren W. Robinson. "Variation in behavioural plasticity regulates consistent individual differences in Enallagma damselfly larvae." Animal Behaviour 112 (February 2016): 63–73. http://dx.doi.org/10.1016/j.anbehav.2015.11.018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Catling, Paul M., Raymond Hutchinson, and Paul M. Brunelle. "Use of Saltmarsh by Dragonflies (Odonata) in the Baie des Chaleurs Region of Quebec and New Brunswick in Late Summer and Autumn." Canadian Field-Naturalist 120, no. 4 (October 1, 2006): 413. http://dx.doi.org/10.22621/cfn.v120i4.348.

Full text

Abstract:

During late summer and autumn, in the Baie des Chaleurs region of Quebec, 18 species of adult dragonflies were recorded during one or more visits of at least 2 hours each to 14 saltmarshes. Three species, Aeshna canadensis, Sympetrum danae and S. internum, were present in more than half of the sites. The most abundant species was S. internum with over 100 seen at some locations. Adults of several species, including Aeshna canadensis, A. umbrosa, Enallagma civile, E. hageni, Ischnura verticalis, Lestes disjunctus, Libellula quadrimaculata, Sympetrum danae, S. internum and S. obtrusum, occurred in relatively high frequencies in both Baie des Chaleurs saltmarshes and in those elsewhere in Acadia. Within Baie des Chaleurs observations of emergence and/or presence of larvae, as well as regional abundance, were recorded for Aeshna canadensis, A. umbrosa, Ischnura verticalis, Sympetrum costiferum, S. internum and S. vicinum. Oviposition in saltmarsh pools was recorded for Aeshna canadensis, Enallagma civile, E, hageni, Ischnura verticalis, Lestes congener and Sympetrum danae. The saltmarsh dragonfly fauna of Baie des Chaleurs is significantly different from that of the rest of Acadia based on frequencies predicted from the latter region. To a large extent this difference is a result of significantly increased use of saltmarsh habitat by adults of six species including Lestes congener, Sympetrum danae, Aeshna canadensis, Sympetrum costiferum, Lestes disjunctus, and Sympetrum internum (in order of decreasing significance) in Baie des Chaleurs in comparison with saltmarshes elsewhere in Acadia. Local amelioration of salty conditions in certain saltmarshes, superimposed on regional amelioration as a result of protection from storms and saltwater dilution in the Baie des Chaleurs estuary, may contribute to an environment where adaptation can occur or where already tolerant species can exist. Dragonflies use saltmarsh habitat on the northeast coast of North America more extensively than is currently documented.

APA, Harvard, Vancouver, ISO, and other styles

28

Forbes, Mark. "Tests of hypotheses for female-limited polymorphism in the damselfly, Enallagma boreale Selys." Animal Behaviour 47, no. 3 (March 1994): 724–26. http://dx.doi.org/10.1006/anbe.1994.1098.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Forbes, Mark R. L., and Robert L. Baker. "Condition and fecundity of the damselfly, Enallagma ebrium (Hagen): the importance of ectoparasites." Oecologia 86, no. 3 (1991): 335–41. http://dx.doi.org/10.1007/bf00317598.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Cook, T. J. Percival, J. Janovy, and R. E. Clopton. "Epimerite-Host Epithelium Relationships among Eugregarines Parasitizing the Damselflies Enallagma civile and Ischnura verticalis." Journal of Parasitology 87, no. 5 (October 2001): 988. http://dx.doi.org/10.2307/3285220.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

McPeek, Mark A., and Jonathan M. Brown. "Building a Regional Species Pool: Diversification of the Enallagma Damselflies in Eastern North America." Ecology 81, no. 4 (April 2000): 904. http://dx.doi.org/10.2307/177166.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Brown, Jonathan M., Mark A. McPeek, and Michael L. May. "A Phylogenetic Perspective on Habitat Shifts and Diversity in the North American Enallagma Damselflies." Systematic Biology 49, no. 4 (December 1, 2000): 697–712. http://dx.doi.org/10.1080/106351500750049789.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

May, Michael L. "Phylogeny and taxonomy of the damselfly genus Enallagma and related taxa (Odonata: Zygoptera: Coenagrionidae)." Systematic Entomology 27, no. 4 (October 2002): 387–408. http://dx.doi.org/10.1046/j.1365-3113.2002.00188.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Hecker, K. R., M. R. Forbes, and N. J. Léonard. "Parasitism of damselflies (Enallagma boreale) by gregarines: sex biases and relations to adult survivorship." Canadian Journal of Zoology 80, no. 1 (January 1, 2002): 162–68. http://dx.doi.org/10.1139/z01-213.

Full text

Abstract:

We studied host damselflies Enallagma boreale (Odonata: Coenagrionidae) and their gregarine parasites (Apicomplexa: Eugregarinidae) to elucidate the causes and consequences of any sex biases in parasitism of adult hosts. Larvae of both sexes were highly infected, but there was no difference between male and female larvae in either prevalence or intensity of gregarine infections. Newly emerged adults had few or no parasites, thereby setting the stage for investigating accumulation of parasites by adults. Adult females had a higher prevalence and intensity of infection by gregarines than did males, but only on 1 (of 2) days when the potential confounding factor of host age was controlled for. Both adult males and females showed a positive correlation between longevity under conditions of food stress and the number of gregarines they initially carried. This finding may be explained if the food ingested with the infective cysts is more beneficial than the parasites are harmful, and it also has implications for investigating sex biases in numbers of trophically transmitted parasites of such insects.

APA, Harvard, Vancouver, ISO, and other styles

35

VERDONSCHOT, Ralf C. M., and Edwin T. H. M. PEETERS. "Preference of larvae of Enallagma cyathigerum (Odonata: Coenagrionidae) for habitats of varying structural complexity." European Journal of Entomology 109, no. 2 (April 5, 2012): 229–34. http://dx.doi.org/10.14411/eje.2012.030.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Fincke, Ola M., Amélie Fargevieille, and Tom D. Schultz. "Lack of innate preference for morph and species identity in mate-searching Enallagma damselflies." Behavioral Ecology and Sociobiology 61, no. 7 (January 30, 2007): 1121–31. http://dx.doi.org/10.1007/s00265-006-0345-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Van Gossum, Hans, Jessica Bots, Tom Snijkers, Johan Meyer, Sam Van Wassenbergh, Wim De Coen, and Luc De Bruyn. "Behaviour of damselfly larvae (Enallagma cyathigerum) (Insecta, Odonata) after long-term exposure to PFOS." Environmental Pollution 157, no. 4 (April 2009): 1332–36. http://dx.doi.org/10.1016/j.envpol.2008.11.031.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Bots, Jessica, Henri Dumont, Tim Adriaens, Robby Stoks, Luc De Bruyn, and Hans Van Gossum. "Seasonal and diurnal variation in the proportions of female morphs of the damselfly Enallagma cyathigerum." Animal Biology 57, no. 2 (2007): 217–30. http://dx.doi.org/10.1163/157075607780377947.

Full text

Abstract:

AbstractIn many damselfly species a female-limited colour polymorphism is encountered which is assumed to be the result of sexual conflict. Typically, one morph resembles the male's body colouration (andromorph), while the other is dissimilar (heteromorph). Little is known about the extent of temporal variation in female morph proportions at the water where mating occurs. Knowledge about such variation should help to identify the factors that affect female morph proportion and the scales at which these factors operate. The objective of this study is to assess the occurrence of diurnal and seasonal variation in female morph proportions at the water for the damselfly Enallagma cyathigerum. Diurnal variation was evaluated at six nearby populations, while seasonal variation was examined at one of these populations. Furthermore, we considered temporal variation in female morph proportion in relation to proxies of male harassment (i.e., male density and operational sex ratio). Our findings indicate that female morph proportion varies throughout a day but is uniform on a seasonal scale. Variation in female morph proportions could not be explained by concomitant variation in male density or operational sex ratio. We suggest future study of male mate choice may consider temporal variation in female morph proportions at the water.

APA, Harvard, Vancouver, ISO, and other styles

39

Duffy, Walter G., and Charles R. Liston. "Survival Following Exposure to Subzero Temperatures and Respiration in Cold Acclimatized Larvae of Enallagma boreale (Odonata:Zygoptera)." Freshwater Invertebrate Biology 4, no. 1 (February 1985): 1–7. http://dx.doi.org/10.2307/1467193.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Bots, Jessica, Luc De Bruyn, Tom Snijkers, Bert Van den Branden, and Hans Van Gossum. "Exposure to perfluorooctane sulfonic acid (PFOS) adversely affects the life-cycle of the damselfly Enallagma cyathigerum." Environmental Pollution 158, no. 3 (March 2010): 901–5. http://dx.doi.org/10.1016/j.envpol.2009.09.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Janssens, Lizanne, and Robby Stoks. "Predation risk causes oxidative damage in prey." Biology Letters 9, no. 4 (August 23, 2013): 20130350. http://dx.doi.org/10.1098/rsbl.2013.0350.

Full text

Abstract:

While there is increasing interest in non-consumptive effects of predators on prey, physiological effects are understudied. While physiological stress responses play a crucial role in preparing escape responses, the increased metabolic rates and shunting of energy away from other body functions, including antioxidant defence, may generate costs in terms of increased oxidative stress. Here, we test whether predation risk increases oxidative damage in Enallagma cyathigerum damselfly larvae. Under predation risk, larvae showed higher lipid peroxidation, which was associated with lower levels of superoxide dismutase, a major antioxidant enzyme in insects, and higher superoxide anion concentrations, a potent reactive oxygen species. The mechanisms underlying oxidative damage are likely to be due to the shunting of energy away from antioxidant defence and to an increased metabolic rate, suggesting that the observed increased oxidative damage under predation risk may be widespread. Given the potentially severe fitness consequences of oxidative damage, this largely overlooked non-consumptive effect of predators may be contributing significantly to prey population dynamics.

APA, Harvard, Vancouver, ISO, and other styles

42

Wisenden, Brian D., Douglas P. Chivers, and R. Jan F. Smith. "Learned Recognition of Predation Risk by Enallagma Damselfly Larvae (Odonata, Zygoptera) on the Basis of Chemical Cues." Journal of Chemical Ecology 23, no. 1 (January 1997): 137–51. http://dx.doi.org/10.1023/b:joec.0000006350.66424.3d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Gosden, Thomas P., John T. Waller, and Erik I. Svensson. "Asymmetric isolating barriers between different microclimatic environments caused by low immigrant survival." Proceedings of the Royal Society B: Biological Sciences 282, no. 1802 (March 7, 2015): 20142459. http://dx.doi.org/10.1098/rspb.2014.2459.

Full text

Abstract:

Spatially variable selection has the potential to result in local adaptation unless counteracted by gene flow. Therefore, barriers to gene flow will help facilitate divergence between populations that differ in local selection pressures. We performed spatially and temporally replicated reciprocal field transplant experiments between inland and coastal habitats using males of the common blue damselfly ( Enallagma cyathigerum ) as our study organism. Males from coastal populations had lower local survival rates than resident males at inland sites, whereas we detected no differences between immigrant and resident males at coastal sites, suggesting asymmetric local adaptation in a source–sink system. There were no intrinsic differences in longevity between males from the different environments suggesting that the observed differences in male survival are environment-dependent and probably caused by local adaptation. Furthermore, the coastal environment was found to be warmer and drier than the inland environment, further suggesting local adaptation to microclimatic factors has lead to differential survival of resident and immigrant males. Our results suggest that low survival of immigrant males mediates isolation between closely located populations inhabiting different microclimatic environments.

APA, Harvard, Vancouver, ISO, and other styles

44

Baker, Robert L. "Food Limitation of Larval Dragonflies: A Field Test of Spacing Behaviour." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 9 (September 1, 1986): 1720–25. http://dx.doi.org/10.1139/f86-215.

Full text

Abstract:

Density-dependent growth and survival of larval odonates may result from some larvae excluding others from profitable hunting sites. This hypothesis predicts that both degree and variation in food limitation should increase with population density; it also suggests that large larvae should show less food limitation than small larvae. I tested these predictions by analyzing food limitation, determined by mass of fecal pellets, and population density of larval Ischnura verticalis and Enallagma ebrium from a pond in southern Ontario. When data from all sampling days were combined, population densities of both species were negatively correlated with gut fullness but there was no correspondence between population density and gut fullness measured at different sites on any given day. Also, there was no correlation between population density and variation in food limitation and there was no evidence that small larvae suffered a greater degree of food limitation than larger larvae. A lack of discrete and persistent prey patches and/or low larval population densities may account for the lack of evidence that larvae are excluded from patches of prey.

APA, Harvard, Vancouver, ISO, and other styles

45

Li, Yaping, Shenhua Miao, Zhangyu Yu, and Tao Liu. "Theoretical investigation on the selectivity in the palladium-catalyzed reaction of oxidative carbonylation-carbocyclization-carbonylation-alkynylation of enallene." Journal of Organometallic Chemistry 853 (December 2017): 143–48. http://dx.doi.org/10.1016/j.jorganchem.2017.10.043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Starr, S. M., and N. E. McIntyre. "Effects of Water Temperature Under Projected Climate Change on the Development and Survival of Enallagma civile (Odonata: Coenagrionidae)." Environmental Entomology 49, no. 1 (December 2, 2019): 230–37. http://dx.doi.org/10.1093/ee/nvz138.

Full text

Abstract:

Abstract Current climate projections for the Great Plains of North America indicate markedly increased air temperatures by the end of the current century. Because the Great Plains contains >80,000 intermittent wetlands that serve as irreplaceable wildlife habitat, this projected warming may have profound effects throughout a continental-scale trophic network. However, little research has been done to determine how projected warming may affect the growth, development, or survival of even common species in this region. We conducted laboratory warming experiments, using an abundant amphibious predatory insect, Enallagma civile (Hagen, 1861), as a model organism, to determine whether projected warming may affect development or survival. Eggs were collected and reared under four water temperature regimes representing current (26°C) and projected future conditions (32, 38, and 41°C). Nymph body size after each molt, development rate, and deaths were recorded. Elevated water temperatures were found to significantly affect the survivorship of E. civile eggs and nymphs as well as adult body size at emergence: an increase in temperature incurred a decrease in survival and size. Nymphs in the two hotter treatments were smaller and had low survivorship whereas individuals in the cooler temperatures generally survived to adulthood and were larger. Nymphs reared at 32°C experienced accelerated ontogenetic development compared with the other temperatures, going from egg to adult in 26 d. Projected elevated temperatures may, thus, be both advantageous and detrimental, causing concern for aquatic invertebrates in this region in the future.

APA, Harvard, Vancouver, ISO, and other styles

47

KOPERSKI, PAWEL. "Changes in feeding behaviour of the larvae of the damselfly Enallagma cyathigerum in response to stimuli from predators." Ecological Entomology 22, no. 2 (May 1997): 167–75. http://dx.doi.org/10.1046/j.1365-2311.1997.00058.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Nel, André, and Gunther Fleck. "Dragonflies and damselflies (Insecta: Odonata) from the Late Eocene of the Isle of Wight." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 104, no. 3-4 (September 2013): 283–306. http://dx.doi.org/10.1017/s175569101400005x.

Full text

Abstract:

ABSTRACTThe odonatan fauna of the Late Eocene of the Isle of Wight is revised. The following taxa are revised or described: the gomphaeschnids Oligoaeschna? anglica Cockerell & Andrews, 1916 and Anglogomphaeschna eocenica gen. et sp. nov.; the aeshnids ‘Oplonaeschna’ vectensis Cockerell & Andrews, 1916, Aeschnophlebia andreasi Nel et al., 2005, Oligaeschna wedmanni sp. nov., and a ‘Gynacanthinae’ species; Neophya legrandi sp. nov., first fossil representative of the Cordulephyidae; three undescribed ‘Corduliidae’; Eomacrodiplax incompleta gen. et sp. nov., first fossil representative of the Urothemistidae; the second representative of the Palaeogene family Bolcathoridae; a Thaumatoneuridae Dysagrionini species A; the megapodagrionid Oligoargiolestes oligocenum Kennedy, 1925; the two hypolestids Anglohypolestes fasciata gen. et sp. nov. and Eohypolestes hooleyi gen. et sp. nov.; the coenagrionid ‘Enallagma' oligocena Cockerell & Andrews, 1916, and three other undescribed species; Angloprotoneura emilielacroixi gen. et sp. nov., first fossil European representative of the damselfly family Protoneuridae; and the lestid Lestes aff. regina Théobald, 1937. This fauna has strong similarities with the Recent Afrotropical and Indo-Malayan Odonata, suggesting a warm palaeoclimate for the Late Eocene of the Isle of Wight. ‘Megalestes’ anglicus Cockerell, 1915 is a Zygoptera Lestiformia or Coenagrionomorpha of uncertain affinities.

APA, Harvard, Vancouver, ISO, and other styles

49

Forbes, Mark R. L., and Robert L. Baker. "Susceptibility to Parasitism: Experiments with the Damselfly Enallagma ebrium (Odonata: Coenagrionidae) and Larval Water Mites, Arrenurus spp. (Acari: Arrenuridae)." Oikos 58, no. 1 (May 1990): 61. http://dx.doi.org/10.2307/3565361.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Lu, Xiaoling, Jeffrey L. Petersen, and Kung K. Wang. "Biradicals/Zwitterions from Enallene-Isonitriles. Formal [4 + 1] Cycloadditions Leading to 11H-Indeno[1,2-b]quinoline and Related Compounds." Organic Letters 5, no. 18 (September 2003): 3277–80. http://dx.doi.org/10.1021/ol035143f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!