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1. The scale of effect of landscape context varies with the species’ response variable measured

Author:
Moraga, Andrew D.; Martin, Amanda E.; Fahrig, Lenore
Source:
Landscape ecology 2019 v.34 no.4 pp. 703-715
ISSN:
0921-2973
Subject:
egg masses,   etc   ; Rana sylvatica; eggs; fecundity; forests; landscapes; ponds; prediction; surveys; Ontario;     Show all 10 Subjects
Abstract:
... CONTEXT: To detect an effect of landscape context on a species’ response, the landscape variables need to be measured within the appropriate distance from the species’ response, i.e. at the scale of effect. However, it is not clear what factors determine the scale of effect. OBJECTIVE: Our objective was to test the prediction that the scale of effect should be smallest when the species’ response i ...
DOI:
10.1007/s10980-019-00808-9

2. Attendance to egg clutches by male Kurixalus eiffingeri increases hatching success and decreases predation by invasive slugs (Parmarion martensi) in Taiwan

Author:
Chuang, Ming‐Feng; Borzée, Amaël; Kam, Yeong‐Choy
Source:
Ethology 2019 v.125 no.1 pp. 40-46
ISSN:
0179-1613
Subject:
egg masses,   etc   ; amphibians; fungi; hatching; invasive species; males; parenting; peptides; predation; predators; progeny; slugs; Taiwan;     Show all 13 Subjects
Abstract:
... Invasive species have a significant impact on amphibians, and most notably Chytrid fungi together with a few vertebrates. However, invasive terrestrial invertebrates are seldomly demonstrated to have a negative effect on their host environment, and few studies investigated the behavioural interactions between invasive and local species, limiting our knowledge of the adaptive response adopted by lo ...
DOI:
10.1111/eth.12822

3. The influence of encapsulated embryos on the timing of hatching in the brooding gastropod Crepipatella dilatata

Author:
Andrade-Villagrán, P.V.; Baria, K.S.; Montory, J.A.; Pechenik, J.A.; Chaparro, O.R.
Source:
Journal of sea research 2018 v.131 pp. 69-78
ISSN:
1385-1101
Subject:
egg masses,   etc   ; Gastropoda; biomass; eggs; encapsulation; hatching; juveniles; larvae; progeny;     Show all 9 Subjects
Abstract:
... Encapsulated embryos are generally thought to play an active role in escaping from egg capsules or egg masses. However, for species that brood their egg capsules, the factors controlling the timing of hatching are largely unclear, particularly the degree to which hatching is controlled by the embryos rather than by the mother, and the degree to which the hatching of one egg capsule influences the ...
DOI:
10.1016/j.seares.2017.11.004

4. Temperature-driven inter-annual variability in reproductive investment in the common whelk Buccinum undatum

Author:
Thatje, Sven; Dunbar, Connor G.; Smith, Kathryn E.
Source:
Journal of sea research 2019 v.148-149 pp. 17-22
ISSN:
1385-1101
Subject:
egg masses,   etc   ; Buccinum; ambient temperature; carbon; carbon nitrogen ratio; eggs; spawning; water temperature; winter; Iceland; United Kingdom;     Show all 11 Subjects
Abstract:
... Global temperatures are rapidly changing, causing shifts in both biotic and abiotic environments. In the short term, physiological plasticity is likely to play an important role in the survival of species. We studied the association between temperature and reproductive investment in the common whelk Buccinum undatum, a North Atlantic gastropod exhibiting non-pelagic development. We calculated the ...
DOI:
10.1016/j.seares.2019.03.003

5. Parasitism of frozen Halyomorpha halys eggs by Trissolcus japonicus: applications for rearing and experimentation

Author:
McIntosh, Hanna; Lowenstein, David M.; Wiman, Nik G.; Wong, Jessica S.; Lee, Jana C.
Source:
Biocontrol science and technology 2019 v.29 no.5 pp. 478-493
ISSN:
1360-0478
Subject:
egg masses,   etc   ; Halyomorpha halys; Trissolcus; biological control; eggs; freezing; growers; homeowners; mass rearing; parasitism; parasitoids; sex ratio; wasps; United States;     Show all 14 Subjects
Abstract:
... The brown marmorated stink bug, Halyomorpha halys (Stål), has become a well-known pest to growers and homeowners since its 1996 introduction to the United States. A classical biocontrol programme is under development using the egg parasitoid Trissolcus japonicus. Widespread implementation of biocontrol requires efficient mass rearing, which is constrained by the availability of fresh H. halys eggs ...
DOI:
10.1080/09583157.2019.1566439

6. Egg masses on the move: corixid oviposition on terrapin shells

Author:
Díaz-Paniagua, Carmen; Céspedes, Vanessa; Andreu, Ana C.; Lozano-Terol, Miguel; Keller, Claudia
Source:
Aquatic insects 2019 v.40 no.1 pp. 19-29
ISSN:
1744-4152
Subject:
egg masses,   etc   ; Emydidae; aquatic habitat; aquatic plants; drought; eggs; hatching; mortality; national parks; oviposition sites; ponds; viability; Spain;     Show all 13 Subjects
Abstract:
... In a very dry year, when aquatic habitats were scarce, we observed exceptionally massive corixid oviposition on terrapin shells in Doñana National Park, southwestern Spain. Most terrapins inhabiting a large pond devoid of aquatic vegetation exhibited a dense cover of corixid eggs, whilst terrapins from vegetated ponds had no egg cover. Corixid oviposition had also been observed on terrapin shells ...
DOI:
10.1080/01650424.2018.1521976

7. Surveying native egg parasitoids and predators of the invasive Halyomorpha halys in Northern Italy

Author:
Costi, Elena; Haye, Tim; Maistrello, Lara
Source:
Journal of applied entomology 2019 v.143 no.3 pp. 299-307
ISSN:
0931-2048
Subject:
egg masses,   etc   ; Anastatus bifasciatus; Halyomorpha halys; adults; branches; cages; eggs; fruits; habitats; leaves; natural enemies; parasitism; parasitoids; predation; predators; surveys; trees; Italy;     Show all 18 Subjects
Abstract:
... The invasive Halyomorpha halys (Heteroptera: Pentatomidae) is a key pest of fruits in the Emilia‐Romagna region of Italy. For the development of a sustainable management programme, knowledge of its native natural enemy community and its efficacy is essential. A three‐year field survey was conducted exposing H. halys egg masses in different types of habitats to investigate the efficacy of native na ...
DOI:
10.1111/jen.12590

8. Azinphos-methyl causes in Planorbarius corneus toxic effects on reproduction, offspring survival and B-esterases depending on the exposure time

Author:
Agrelo, Macarena; Rivadeneira, Pamela R.; Cossi, Paula F.; Cacciatore, Luis C.; Kristoff, Gisela
Source:
Comparative biochemistry and physiology 2019 v.217 pp. 114-121
ISSN:
1532-0456
Subject:
egg masses,   etc   ; Planorbarius corneus; acute exposure; adults; azinphos-methyl; biomarkers; carboxylesterase; cholinesterase; death; enzyme activity; enzyme inhibition; gonads; juveniles; progeny; subchronic exposure; tissues; toxicity;     Show all 17 Subjects
Abstract:
... This work aimed to study in the freshwater gastropod Planorbarius corneus the effects of acute (2 days) and subchronic (14 days) exposures to an environmental concentration of the organophosphate azinphos-methyl on different reproductive parameters, offspring survival and B-esterase activities in gonads and in the whole organism soft tissue. The acute exposure inhibited only carboxylesterase activ ...
DOI:
10.1016/j.cbpc.2018.12.002

9. First discovery of adventive populations of Trissolcus japonicus in Europe

Author:
Stahl, Judith; Tortorici, Francesco; Pontini, Marianna; Bon, Marie-Claude; Hoelmer, Kim; Marazzi, Cristina; Tavella, Luciana; Haye, Tim
Source:
Journal of pest science 2019 v.92 no.2 pp. 371-379
ISSN:
1612-4758
Subject:
egg masses,   etc   ; Halyomorpha halys; Trissolcus; adults; apples; barcoding; biological control; eggs; genetic analysis; mitochondrial DNA; orchards; parasitoids; surveys; East Asia; Switzerland;     Show all 15 Subjects
Abstract:
... The brown marmorated stink bug, Halyomorpha halys (Stål), native to East Asia, emerged as an invasive pest in Europe in the 2000s. In its native range, Trissolcus japonicus (Ashmead) is the dominant egg parasitoid of H. halys, and thus it has been considered for classical biological control in countries invaded by the pest. A survey of native egg parasitoids conducted in 2017 and 2018 with frozen, ...
DOI:
10.1007/s10340-018-1061-2

10. Phenology of sugarcane leaf hopper Pyrilla perpusilla (Walker) (Homoptera: Lophopidae) and its natural enemies in a crop island scenario

Author:
Mahesh, P.; Srikanth, J.; Salin, K.P.; Singaravelu, B.; Chandran, K.; Mahendran, B.
Source:
Crop protection 2019
ISSN:
0261-2194
Subject:
egg masses,   etc   ; Dryinidae; Hirsutella; Pyrilla perpusilla; Tetrastichus; adults; eggs; fungi; germplasm; natural enemies; nymphs; parasitism; parasitoids; pathogenicity; phenology; population dynamics; sugarcane; weather;     Show all 18 Subjects
Abstract:
... Population dynamics of sugarcane leaf hopper Pyrilla perpusilla (Walker) (Homoptera: Lophopidae) and its natural enemies, namely the egg parasitoid Parachrysocharis javensis Girault (= Tetrastichus pyrillae Chrawford) (Hymenoptera: Eulophidae), nymphal parasitoid Dryinus pyrillae (Kieffer) (= Lestodryinus pyrillae Kieffer) (Hymenoptera: Dryinidae) and entomophathogenic fungus Hirsutella citriformi ...
DOI:
10.1016/j.cropro.2019.02.020

11. Spatial and seasonal distribution of egg parasitoids of the sharpshooter tapajosa rubromarginata (Hemiptera: Cicadellidae: Proconiini) On feral johnson grass and commercial citrus host in argentina

Author:
Virla, Eduardo G.; Van Nieuwenhove, Guido A.; Palottini, Florencia; Triapitsyn, Serguei V.; Logarzo, Guillermo A.
Source:
Biological control 2019
ISSN:
1049-9644
Subject:
egg masses,   etc   ; Cicadellidae; Citrus; Mymaridae; Trichogrammatidae; Xylella fastidiosa; bacteria; biological control; biological control agents; eggs; grasses; insect vectors; leaves; lemons; orchards; parasitism; parasitoids; spring; summer; wasps; Argentina;     Show all 21 Subjects
Abstract:
... Hymenopterous egg parasitoids are considered promising biocontrol agents against insect vectors of the bacterium Xylella fastidiosa Wells. We studied the spatial and seasonal occurrence of the egg parasitoid guild of the sharpshooter Tapajosa rubromarginata (Signoret) (Hemiptera: Cicadellidae: Proconiini), a known vector of X. fastidiosa, in a commercial lemon orchard in Tucumán Province, Argentin ...
DOI:
10.1016/j.biocontrol.2019.02.004

12. Latitudinal variation in the phenological responses of eastern tent caterpillars and their egg parasitoids

Author:
Abarca, Mariana; Lill, John T.
Source:
Ecological entomology 2019 v.44 no.1 pp. 50-61
ISSN:
0307-6946
Subject:
egg masses,   etc   ; Malacosoma americanum; eggs; environmental factors; growing season; hosts; hyperparasitoids; insect larvae; latitude; maternal effect; overwintering; phenology; spring; starvation; temperature; wasps; winter; North America;     Show all 18 Subjects
Abstract:
... 1. Eastern tent caterpillars (Malacosoma americanum) are broadly distributed within North America, with populations spanning a wide range of environmental conditions. Their egg masses are consistently attacked by a variety of wasps in the superfamily Chalcidoidea. We performed a reciprocal transplant‐type experiment to assess the performance of three populations spanning 15° of latitude when subje ...
DOI:
10.1111/een.12673

13. Investigating the in vitro and in vivo nematicidal performance of structurally related macrolides against the root-knot nematode, Meloidogyne incognita

Author:
Radwan, M.A.; Saad, A.S.A.; Mesbah, H.A.; Ibrahim, H.S.; Khalil, M.S.
Source:
Hellenic Plant Protection Journal 2019 v.12 no.1 pp. 24-37
ISSN:
1791-3691
Subject:
egg masses,   etc   ; Meloidogyne incognita; abamectin; biopesticides; eggs; galls; hatching; juveniles; macrolides; mortality; nematicides; plant protection; population density; root-knot nematodes; roots; shoots; soil; spinosad; tomatoes;     Show all 19 Subjects
Abstract:
... Avermectins and spinosyns are structurally related natural products of microbial origin and belong to a new family of macrolides which are active against a vast array of invertebrate pests. In the present study, the effects of four members of macrolides; abamectin (ABM), emamectin benzoate (EMB), spinosad (SPI) and spinetoram (SPIT), on Meloidogyne incognita were investigated under in vitro and in ...
DOI:
10.2478/hppj-2019-0005

14. A modified DNA barcode approach to define trophic interactions between native and exotic pentatomids and their parasitoids

Author:
Gariepy, Tara D.; Bruin, Allison; Konopka, Joanna; Scott‐Dupree, Cynthia; Fraser, Hannah; Bon, Marie‐Claude; Talamas, Elijah
Source:
Molecular ecology 2019 v.28 no.2 pp. 456-470
ISSN:
0962-1083
Subject:
egg masses,   etc   ; Brochymena quadripustulata; DNA barcoding; Halyomorpha halys; Telenomus; Trissolcus; eggs; habitats; hosts; indigenous species; introduced species; invasive species; parasitism; parasitoids; rearing; species diversity; Canada;     Show all 17 Subjects
Abstract:
... The establishment of invasive Halyomorpha halys (Stål) outside of its native range may impact native species assemblages, including other pentatomids and their scelionid parasitoids. This has generated interest in defining species diversity and host‐parasitoid associations in this system to better understand the impact of invasive alien species on trophic interactions in invaded regions. Informati ...
DOI:
10.1111/mec.14868

15. Using wood frog (Lithobates sylvaticus) tadpoles and semipermeable membrane devices to monitor polycyclic aromatic compounds in boreal wetlands in the oil sands region of northern Alberta, Canada

Author:
Mundy, Lukas J.; Bilodeau, Julie C.; Schock, Danna M.; Thomas, Philippe J.; Blais, Jules M.; Pauli, Bruce D.
Source:
Chemosphere 2019 v.214 pp. 148-157
ISSN:
0045-6535
Subject:
egg masses,   etc   ; Rana sylvatica; aquatic organisms; atmospheric deposition; bitumen; fluorenes; lentic systems; metals; oil sands; polycyclic compounds; snow; surface mining; surface water; tadpoles; wetlands; Alberta;     Show all 16 Subjects
Abstract:
... Several recent studies have reported evidence that surface mining operations of bitumen in northern Alberta's oil sands (OS) region contribute significantly to the atmospheric deposition of metals and polycyclic aromatic compounds (PACs) within the vicinity of OS development. The present study examines the accumulation of PACs in boreal wetlands at varying distance from OS industrial activities wi ...
DOI:
10.1016/j.chemosphere.2018.09.034

16. Biological and histological changes in reproductive patterns of Biomphalaria glabrata experimentally co-infected by Echinostoma paraensei and Angiostrongylus cantonensis

Author:
Cristina dos Santos Bonfim, Tatiane; Tunholi-Alves, Vinícius Menezes; Martins, Florence Gonçalves; Mota, Ester Maria; Maldonado, Arnaldo; Pinheiro, Jairo; Garcia, Juberlan Silva
Source:
Experimental parasitology 2018 v.195 pp. 66-70
ISSN:
0014-4894
Subject:
egg masses,   etc   ; Biomphalaria glabrata; Echinostoma; Parastrongylus cantonensis; eggs; helminths; histology; mixed infection; mortality; snails;     Show all 10 Subjects
Abstract:
... Investigation of co-infection by different helminths in snails can provide essential information about the biology of parasites co-existence under natural conditions. This study aimed to investigate the reproductive and histological changes of Biomphalaria glabrata experimentally co-infected with Echinostoma paraensei and Angiostrongylus cantonensis. Five groups of snails i.e. uninfected, with sin ...
DOI:
10.1016/j.exppara.2018.10.005

17. Life cycle of the southern cattle tick, Rhipicephalus (Boophilus) microplus Canestrini 1888 (Acari: Ixodidae) under laboratory conditions

Author:
Senbill, Haytham; Hazarika, Lakshmi Kanta; Baruah, Aiswarya; Borah, Deepak Kumar; Bhattacharyya, Badal; Rahman, Sahidur
Source:
Systematic and applied acarology 2018 v.23 no.6 pp. 1169-1179
ISSN:
1362-1971
Subject:
egg masses,   etc   ; Rhipicephalus microplus; adults; cattle; eggs; epidemiological studies; females; hatching; hosts; larvae; molting; rabbits; ticks;     Show all 13 Subjects
Abstract:
... The southern cattle tick, Rhipicephalus (Boophilus) microplus is one of the most important tick species affecting bovine wealth worldwide. Three uninterrupted generations of this species were observed under laboratory conditions (28±3 °C and 80±5% R.H.) using rabbit hosts. The average life cycle was determined as 65±8 days. Adult feeding period averaged 7..1±1.24 days. Pre-oviposition and oviposit ...

18. Egg masses and development of Falsilunatia eltanini (Mollusca: Gastropoda): a deep-sea naticid from a Southwestern Atlantic Canyon

Author:
Averbuj, Andres; Penchaszadeh, Pablo E.; Pastorino, Guido
Source:
Marine biology 2018 v.165 no.5 pp. 81
ISSN:
0025-3162
Subject:
egg masses,   etc   ; Gastropoda; breeding season; eggs; embryogenesis; encapsulation; juveniles; sand; snails; Argentina;     Show all 10 Subjects
Abstract:
... A series of cruises to the Mar del Plata Submarine Canyon (38°S/54°W) off Argentina in 2012–2013 have provided biological material that enables insights into the various modes of development of deep-sea invertebrates at depths up to 3500 m. This study describes the unusually large encapsulated embryos of the globose moon snail, Falsilunatia eltanini Dell, 1990 (Naticidae), and compares them with a ...
DOI:
10.1007/s00227-018-3337-8

19. Exposure to the antifouling chemical medetomidine slows development, reduces body mass, and delays metamorphosis in wood frog (Lithobates sylvaticus) tadpoles

Author:
Barr, JanineM.; Palmucci, JuliaR.; Lambert, OliviaJ.; Fong, PeterP.
Source:
Environmental science and pollution research international 2018 v.25 no.11 pp. 10630-10635
ISSN:
0944-1344
Subject:
egg masses,   etc   ; Rana sylvatica; amphibians; aquatic organisms; body length; head; medetomidine; metamorphosis; tadpoles; toxicity;     Show all 10 Subjects
Abstract:
... Antifouling chemicals have a long history of causing toxicity to aquatic organisms. We measured growth and developmental timing in wood frog tadpoles exposed to the antifouling chemical medetomidine (10 nM–10 μM) starting at two different developmental stages in static renewal experiments. For tadpoles hatched from egg masses and exposed for 3 weeks to 100 nM and 1 μM, head width/total body length ...
DOI:
10.1007/s11356-018-1204-2

20. Synchrony in the hatching of eggs in the desert locust Schistocerca gregaria (Orthoptera: Acrididae): egg condition influences hatching time in the laboratory and under simulated field temperatures

Author:
Nishide, Yudai; Suzuki, Takeshi; Tanaka, Seiji
Source:
Applied entomology and zoology 2017 v.52 no.4 pp. 599-604
ISSN:
0003-6862
Subject:
egg masses,   etc   ; Schistocerca gregaria; eggs; habitats; hatching; temperature; Mauritania;     Show all 7 Subjects
Abstract:
... This study examined the time of hatching of the desert locust Schistocerca gregaria Forskål (Orthoptera: Acrididae) in the laboratory to test the effect of eggs within a pod versus individualized eggs. The pod organization of eggs is thought to play a role in controlling hatching time and to facilitate synchronous hatching at constant temperatures. In the present study, we examined the hatching ti ...
DOI:
10.1007/s13355-017-0517-9