Relevant bibliographies by topics / Invertebrate populations

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Invertebrate populations'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 March 2023

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Journal articles on the topic "Invertebrate populations"

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Downing, John A., and Hélène Cyr. "Quantitative Estimation of Epiphytic Invertebrate Populations." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 10 (October 1, 1985): 1570–79. http://dx.doi.org/10.1139/f85-197.

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Quantitative comparisons were made of the relative accuracy, precision, and cost of various population estimation techniques for epiphytic invertebrates. Quadrat clipping was often more accurate than the Gerking, Macan, Minto, or KUG samplers, yielding population estimates an average of sevenfold greater where differences were found. All quadrat sizes (112 cm2 to 1 m2) usually yielded equal estimates of epiphytic invertebrate populations. The spatial variance of replicate epiphytic invertebrate samples increased with population density and decreased with the size of sampler employed (R2 = 0.94; n = 497). All samplers yielded equivalent levels of sampling precision. A method providing provisional estimates of the requisite number of replicate samples for a given level of precision is presented. Greater replication is required at low invertebrate population density or when small samplers are used. The most cost effective sampler size for the phytofauna is about 500 cm2. Improved sampling design can result in up to fivefold reductions in sampling effort. Taxa examined include Acari, Amphipoda, Chironomidae, Cladocera, Copepoda, Gastropoda, Hirudinea, Lepidoptera, Nematoda, Oligochaeta, Ostracoda, Trichoptera, and Turbellaria.
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Plante, Céline, and John A. Downing. "Production of Freshwater Invertebrate Populations in Lakes." Canadian Journal of Fisheries and Aquatic Sciences 46, no. 9 (September 1, 1989): 1489–98. http://dx.doi.org/10.1139/f89-191.

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This research draws together data on the secondary production of 164 invertebrate populations in 51 lakes to test the hypothesis that the annual production of aquatic invertebrate populations is significantly correlated with the mean annual population biomass, individual body mass, and ambient temperature. Further analyses examine the effects of water chemistry, trophic status, and lake morphometry. Mean annual biomass, individual body mass, and the mean annual water temperature accounted for 79% of the variance in the logarithm of annual secondary production. In contrast to the findings of previous studies, the ratio of mean annual production to mean annual biomass [Formula: see text] varied systematically with population biomass. No significant difference was found between the secondary production of littoral and open water invertebrate populations. Analyses also suggest that zoobenthic and zooplanktonic populations of similar biomass, body mass, and temperature have similar rates of secondary productivity. Analyses demonstrate that the total phosphorus concentration in the water column, and other trophic indicators were positively correlated with secondary production. The pH, lake depth, thermocline depth, drainage area, and the water turnover rate were also found to be correlated with the secondary productivity of natural populations of lentic invertebrates.
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Munsch, Stuart H., Julie S. Barber, Jeffery R. Cordell, Peter M. Kiffney, Beth L. Sanderson, and Jason D. Toft. "Small invertebrates in bivalve-cultivated and unmodified habitats of nearshore ecosystems." Hydrobiologia 848, no. 6 (February 22, 2021): 1249–65. http://dx.doi.org/10.1007/s10750-021-04520-1.

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AbstractMany nearshore ecosystems are modified by aquaculture, including bivalve culture to produce food and restore extirpated populations. Small invertebrates in nearshore ecosystems support fundamental ecological processes, but the effects of bivalve culture on invertebrates are incompletely understood. Here, we compared invertebrate assemblages from multiple studies of bivalve-cultivated and unmodified nearshore habitats along the US west coast. In general, unmodified eelgrass and nearby off-bottom culture habitats with eelgrass present were inhabited by a greater abundance, richness, and diversity of epibenthic invertebrates than bottom culture and bare (mud, sand) habitats that both lacked eelgrass. Findings of individual studies suggested: minor differences in epibenthic invertebrate assemblages associated with various aquaculture practices; restoring native oysters to mudflats did not detectably alter epibenthic invertebrate abundances; epibenthic invertebrates were more abundant on shell hash introduced to mudflats than unmodified mudflats; and benthic invertebrates were less abundant, rich, and diverse in habitats cultured on bottom by Manila clams. Considering the range of these patterns, there appears to be potential for coastal communities to restore extirpated bivalve populations or develop bivalve culture practices that meet objectives to grow food while maintaining nearshore ecosystems’ fundamental processes supported by robust invertebrate assemblages.
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Lee, Nicole S. M., Gopalasamy R. Clements, Adeline S. Y. Ting, Zhi H. Wong, and Sze H. Yek. "Persistent mosquito fogging can be detrimental to non-target invertebrates in an urban tropical forest." PeerJ 8 (October 1, 2020): e10033. http://dx.doi.org/10.7717/peerj.10033.

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Background Human population growth has led to biodiversity declines in tropical cities. While habitat loss and fragmentation have been the main drivers of urban biodiversity loss, man-made interventions to reduce health risks have also emerged as an unintentional threat. For instance, insecticide fogging to control mosquito populations has become the most common method of preventing the expansion of mosquito-borne diseases such as Dengue. However, the effectiveness of fogging in killing mosquitoes has been called into question. One concern is the unintended effect of insecticide fogging on non-target invertebrates that are crucial for the maintenance of urban ecosystems. Here, we investigate the impacts of fogging on: (1) target invertebrate taxon (Diptera, including mosquitoes); (2) non-target invertebrate taxa; and (3) the foraging behavior of an invertebrate pollinator taxon (Lepidoptera) within an urban tropical forest. Methods We carried out fogging with Pyrethroid insecticide (Detral 2.5 EC) at 10 different sites in a forest situated in the state of Selangor, Peninsular Malaysia. Across the sites, we counted the numbers of knocked-down invertebrates and identified them based on morphology to different taxa. We constructed Bayesian hierarchical Poisson regression models to investigate the effects of fogging on: (1) a target invertebrate taxon (Diptera) 3-h post-fogging; (2) selected non-target invertebrate taxa 3-h post-fogging; and (3) an invertebrate pollinator taxon (Lepidoptera) 24-h post-fogging. Results A total of 1,874 invertebrates from 19 invertebrate orders were knocked down by the fogging treatment across the 10 sites. Furthermore, 72.7% of the invertebrates counted 3-h post-fogging was considered dead. Our regression models showed that given the data and prior information, the probability that fogging had a negative effect on invertebrate taxa 3-h post-fogging was 100%, with reductions to 11% of the pre-fogging count of live individuals for the target invertebrate taxon (Diptera), and between 5% and 58% of the pre-fogging count of live individuals for non-target invertebrate taxa. For the invertebrate pollinator, the probability that fogging had a negative effect 24-h post-fogging was also 100%, with reductions to 53% of the pre-fogging count of live individuals. Discussion Our Bayesian models unequivocally demonstrate that fogging has detrimental effects on one pollinator order and non-target invertebrate orders, especially taxa that have comparatively lower levels of chitinisation. While fogging is effective in killing the target order (Diptera), no mosquitos were found dead in our experiment. In order to maintain urban biodiversity, we recommend that health authorities and the private sector move away from persistent insecticide fogging and to explore alternative measures to control adult mosquito populations.
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Morin, Antoine, and Nathalie Bourassa. "Modèles empiriques de la production annuelle et du rapport P/B d'invertébrés benthiques d'eau courante." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 3 (March 1, 1992): 532–39. http://dx.doi.org/10.1139/f92-063.

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Published data on secondary production of running water invertebrates are analyzed by multiple regression to quantify the relationship between productivity (P, in grams dry mass per square metre per year) and biomass (B, in grams dry mass per square metre), mean individual mass (M, in grams dry mass), and annual mean water temperature (T, in degrees Celsius) to compare productivity of major taxonomic groups and to compare to invertebrate populations from other aquatic ecosystems. The equation P = 0.18 B1.01M−0.34 100.037T explains 87% of the variability in log P in the 291 lotic invertebrate populations analyzed. Significant differences were detected among major taxonomic groups, but these differences account for only about 4% of the variability in log P. Once the effect of biomass, mean individual mass and water temperature are taken into account, productivity of lake and stream invertebrate populations is quite similar, although productivity is a linear function of biomass in streams and not in lakes. Comparison of models for running waters, lake and marine ecosystems suggests that marine invertebrates are less productive than freshwater populations.
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Naman, Sean M., Jordan S. Rosenfeld, and John S. Richardson. "Causes and consequences of invertebrate drift in running waters: from individuals to populations and trophic fluxes." Canadian Journal of Fisheries and Aquatic Sciences 73, no. 8 (August 2016): 1292–305. http://dx.doi.org/10.1139/cjfas-2015-0363.

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Invertebrate drift, the downstream transport of aquatic invertebrates, is a fundamental ecological process in streams with important management implications for drift-feeding fishes. Despite long-standing interest, many aspects of drift remain poorly understood mechanistically, thereby limiting broader food web applications (e.g., bioenergetics-based habitat models for fish). Here, we review and synthesize drift-related processes, focusing on their underlying causes, consequences for invertebrate populations and broader trophic dynamics, and recent advances in predictive modelling of drift. Improving predictive models requires further resolving the environmental contexts where drift is driven by hydraulics (passive drift) versus behaviour (active drift). We posit this can be qualitatively inferred by hydraulic conditions, diurnal periodicity, and taxa-specific traits. For invertebrate populations, while the paradox of population persistence in the context of downstream loss has been generally resolved with theory, there are still many unanswered questions surrounding the consequences of drift for population dynamics. In a food web context, there is a need to better understand drift-foraging consumer–resource dynamics and to improve modelling of drift fluxes to more realistically assess habitat capacity for drift-feeding fishes.
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KRAGTEN, S., W. L. M. TAMIS, E. GERTENAAR, S. M. MIDCAP RAMIRO, R. J. VAN DER POLL, J. WANG, and G. R. DE SNOO. "Abundance of invertebrate prey for birds on organic and conventional arable farms in the Netherlands." Bird Conservation International 21, no. 1 (January 27, 2010): 1–11. http://dx.doi.org/10.1017/s0959270910000079.

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SummaryAs a result of agricultural intensification, populations of farmland birds have been in steep decline for several decades. Reduction in food abundance has been mentioned as one factor behind these declines. Extensive farm management, such as use of organic methods, is expected to provide more food for birds. In this study we compared invertebrate prey abundance for birds during the breeding season between organic and conventional arable farms. We made comparisons for three different groups of birds: (1) birds feeding on soil-living invertebrates (earthworms), (2) birds feeding on ground-dwelling invertebrates and (3) birds feeding on aerial invertebrates. Invertebrate abundance was compared between organic and conventional farms, crop and non-crop habitats, and between crop and non-crop habitats under the same farm management. On organic sites, earthworm abundance was 2–4 times higher than on conventional sites, but no differences were found between crop types. Total abundance of ground-dwelling invertebrates did not differ between organic and conventional sites, but positive effects were found for several individual taxonomic groups, such as carabid beetles and spiders. On organic farms, invertebrate abundance was higher in carrots, cereals and onions compared to other crops; on conventional farms this was true for onions. When compared with most crops, ground-dwelling invertebrate abundance was low in uncropped field margins and on ditch banks. On organic farms, aerial invertebrate abundance was approximately 70% higher than on conventional farms. On cereal fields, aerial invertebrates were especially abundant.
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Carpio, A. J., J. Castro–López, J. Guerrero–Casado, L. Ruiz–Aizpurua, J. Vicente, and F. S. Tortosa. "Effect of wild ungulate density on invertebrates in a Mediterranean ecosystem." Animal Biodiversity and Conservation 37, no. 2 (December 2014): 115–25. http://dx.doi.org/10.32800/abc.2014.37.0115.

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In recent decades, the abundance and distribution of certain big game species, particularly red deer (Cervus elaphus) and wild boar (Sus scrofa), have increased in south central Spain as a result of hunting management strategies. The high density of these ungulate species may affect the abundance of epigeous invertebrates. We tested the relationships between big game abundance and biodiversity, taxon richness, the biomass of invertebrates and their frequency on nine hunting estates and in comparison to ungulate exclusion areas. Ungulate exclusion itself affected invertebrate richness, since lower values were found in the open plots, whereas the highest differences in invertebrate diversity between fenced and open plots was found in areas with high wild boar density. Where wild boar densities were high, the number of invertebrates decreased, while where they were low, red deer had a positive effect on invertebrate abundance. Fenced plots thus seemed to provide refuge for invertebrates, particularly where wild boar were abundant. This study supports the idea that the structure of fauna communities is damaged by high density populations of ungulates, probably due to decreased food availability owing to overgrazing, modified conditions of ecological microniches and direct predation. However, the effects depended on the group of invertebrates, since saprophytic species could benefit from high ungulate abundance. Our findings reflect the need to control ungulate population density under Mediterranean conditions in south–western Europe and to implement ungulate exclusion plots.
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Nasmith, Leslie E., William M. Tonn, Cynthia A. Paszkowski, and Garry J. Scrimgeour. "Limited effects of stocked trout on littoral invertebrates in boreal foothills lakes." Canadian Journal of Fisheries and Aquatic Sciences 69, no. 1 (January 2012): 178–90. http://dx.doi.org/10.1139/f2011-145.

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Stocking lakes with trout for the purposes of recreational angling is a management strategy that introduces a new predator into these systems and thus deserves careful scrutiny. To assess the impact of non-native trout on littoral invertebrates in naturally fish-bearing lakes in the boreal foothills of Alberta, Canada, we compared their community composition, abundance, and size structure in stocked (n = 5) and unstocked (n = 6) lakes over a 2-year period. We detected no clear negative effects of introduced trout on invertebrate community composition and only few taxa-specific examples of decreased or increased invertebrate abundance. Furthermore, predation by trout had inconsistent direct effects on the size structure of invertebrate populations. Indirect effects were suggested by increased abundances and sizes of some invertebrate taxa in stocked lakes and might also contribute to the limited overall differences that we observed. We propose that net effects of stocked trout on littoral invertebrates are influenced by key characteristics of receiving ecosystems. In our boreal foothills lakes, dense macrophyte cover in warm littoral zones, high productivity, abundant forage fish, and limited densities of trout all likely combine to allow littoral invertebrate communities to withstand the impact of introduced trout with minimal effects.
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Woodcock, B. A., S. G. Potts, S. R. Mortimer, C. S. Lawson, A. J.Ramsay, V. K. Brown, and J. R. Tallowin. "The manipulation of vegetation field and field margin vegetation structure in intensively managed UK cattle grazed pasture systems: Implications for invertebrate biodiversity." Proceedings of the British Society of Animal Science 2005 (2005): 231. http://dx.doi.org/10.1017/s175275620001142x.

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Changing management in UK lowland pasture systems has lead to larger fertiliser inputs, increased intensity and frequency of cutting and a movement towards silage rather than hay based systems. This has lead to changes in both floral diversity and the seasonal characteristics of sward architectural complexity, which include the loss of key vegetation structures at critical times of the year. e.g., seed heads. This has had large impacts on invertebrate communities in pasture systems and is thought to be the cause of large-scale declines in both the abundances and diversity of invertebrates (Duffey et al., 1974). This decline in invertebrate abundance has also been linked to a concomitant decline in farmland bird populations reliant on invertebrates as a food sources (Vickery et al., 2001). By manipulating cattle grazing, cutting and fertiliser regimes in intensively managed pasture systems the role of vegetation structure for a variety of invertebrate communities has been investigated.
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Dissertations / Theses on the topic "Invertebrate populations"

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Rate, Stephen R., and n/a. "Invertebrate diversity and vegetation heterogeneity : plant-invertebrate relationships in indigenous New Zealand grasslands." University of Otago. Department of Botany, 2005. http://adt.otago.ac.nz./public/adt-NZDU20061025.144447.

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Spatial heterogeneity of the environment, as measured by floral diversity, composition and structure, is known to influence the distribution and diversity of invertebrates. Heterogeneity brought about by anthropogenic disturbance may be a threat to invertebrate diversity. This thesis investigates the impacts of vegetation heterogeneity at a range of scales on the diversity of invertebrate populations in modified high-altitude indigenous grasslands on the Rock and Pillar Range, Central Otago. Invertebrates were sampled in and on the edges of snow tussock fragments to assess whether species richness increased systematically with fragment area. Invertebrate composition was poorly related to fragment area, plant composition and environmental variables. Taxon richness, abundance and/or diversity for three invertebrate groups increased as fragment area decreased, perhaps reflecting an influx of species from the surrounding matrix. For snow tussock leaf invertebrates in autumn, richness and abundance were at least two times lower in tussocks exposed to the wind than those in the centre of fragments, suggesting selection of habitat may be based on microclimatic characteristics. Invertebrates were sampled from the bases of tussocks after they were clipped to simulate three levels of vertebrate grazing. Invertebrate community composition differed between sites and sampling dates but was unaffected by clipping treatment. At the higher altitude site invertebrate abundance was 1.45 times greater and Shannon-Wiener diversity (H�) 1.22 times lower than at the lower altitude site. The latter sampling date had higher abundance (2.12 times) and taxon richness (1.14 times) than the earlier date. Pitfall-trapped invertebrates in cushionfield, herbfield and snow tussock differed in community composition and often by taxon richness, abundance and diversity. Across habitats, plant composition, plant diversity and some environmental variables were correlated with invertebrate variables, but could not be separated from vegetation type. The invertebrates collected in the course of the study are listed. Four Phyla, eight Classes, 24 orders and over 300 taxa were recorded. Almost all taxa are endemic and many have limited distributions and/or are undescribed. A species list is provided with collection altitude, method and habitat type. Invertebrate assemblages from sites differing in altitude, vegetation type and level of habitat modification on the Rock and Pillar Range are compared. Sites differed in species composition and rank orders of abundance and richness. At lower elevations, invertebrate richness was at least 25% less, and standardised trap abundance at least 44% less, than that at the highest elevation. Richness and abundance of exotic invertebrates decreased with increasing altitude. This thesis highlights several points concerning the study of grassland invertebrates and heterogeneity on the Rock and Pillar Range. First, there are differences in invertebrate assemblages at a range of scales. Conserving invertebrate diversity will therefore require altitudinal sequences and different habitat types, including disturbed areas. At high elevations, tussock habitat may be disproportionately important due to its relative rarity. Second, the effects of disturbance on invertebrates were only visible at large spatial scales. Third, there is a paucity of research on New Zealand invertebrates, especially in regard to terrestrial disturbance, which has resulted in a shortfall of biological, distributional, taxonomic and ecological knowledge.
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Pryke, James Stephen. "Conservation of the invertebrate fauna on the Cape Peninsula." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1452.

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Marçal, Sandra Francisca [UNESP]. "Efeito de alterações do nível da água do reservatório Salto Grande, usadas para o controle de macrófitas, na estrutura e estabilidade da fauna de invertebrados fitófilos em uma lagoa marginal ao Rio Paranapanema." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/116034.

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Em ambientes aquáticos controlados por barragens, a elevada estabilidade hídrica favorece a proliferação de macrófitas, sendo para seu controle utilizado um manejo por alterações no nível da água. Porém não existem estudos que avaliem o efeito dessa técnica, que gera condições extremas de seca e inundação sobre a fauna de invertebrados fitófilos. O presente trabalho foi realizado durante alterações operacionais do nível da água para controle de macrófitas submersas no reservatório de Salto Grande (SP/PR). O objetivo foi avaliar o efeito dessas alterações sobre a diversidade de invertebrados associados à macrófita Egeria na lagoa Pedra Branca, conectada ao Rio Paranapanema e sob a influência do reservatório. As coletas foram realizadas ao longo de um transecto longitudinal da lagoa, antes do manejo ser iniciado (controle), no 1º, 7º e 11º dias após o rebaixamento (PR), quando a lagoa se desconecta do rio, e 49 dias após o enchimento do reservatório (PE). A hipótese do trabalho de menor diversidade após as alterações do nível da água do reservatório (seca e cheia induzidas) foi avaliada ao nível de toda a fauna e para os táxons de Chironomidae. As alterações do nível da água foram acompanhadas por alterações na estrutura da fauna fitófila, com variação temporal na densidade dos grupos, especialmente de Hexapoda, Mollusca e Protozoa. As mudanças ambientais relacionadas à contração (seca), e conseqüente concentração das macrófitas na área central da lagoa, e ampliação (cheia) das regiões limnética e litorânea geraram uma substituição de grupos dominantes (reduzindo a densidade de Chironomidae e aumentando a de Physa marmorata durante o PR), aumento na riqueza e maior diversidade e equitabilidade no PE. Os distúrbios causaram redução na densidade das três subfamílias de Chironomidae, principalmente de Chironominae, com maior riqueza e dominância em todas as datas ...
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Marçal, Sandra Francisca. "Efeito de alterações do nível da água do reservatório Salto Grande, usadas para o controle de macrófitas, na estrutura e estabilidade da fauna de invertebrados fitófilos em uma lagoa marginal ao Rio Paranapanema /." Botucatu, 2014. http://hdl.handle.net/11449/116034.

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Orientador: Virgínia Sanches Uieda
Banca: Ana Lúcia Brandimarte
Banca: Marcelo Luiz Martins Pompêo
Banca: Alaíde Aparecida Fonseca Gessner
Banca: Marcos Gomes Nogueira
Resumo: Em ambientes aquáticos controlados por barragens, a elevada estabilidade hídrica favorece a proliferação de macrófitas, sendo para seu controle utilizado um manejo por alterações no nível da água. Porém não existem estudos que avaliem o efeito dessa técnica, que gera condições extremas de seca e inundação sobre a fauna de invertebrados fitófilos. O presente trabalho foi realizado durante alterações operacionais do nível da água para controle de macrófitas submersas no reservatório de Salto Grande (SP/PR). O objetivo foi avaliar o efeito dessas alterações sobre a diversidade de invertebrados associados à macrófita Egeria na lagoa Pedra Branca, conectada ao Rio Paranapanema e sob a influência do reservatório. As coletas foram realizadas ao longo de um transecto longitudinal da lagoa, antes do manejo ser iniciado (controle), no 1º, 7º e 11º dias após o rebaixamento (PR), quando a lagoa se desconecta do rio, e 49 dias após o enchimento do reservatório (PE). A hipótese do trabalho de menor diversidade após as alterações do nível da água do reservatório (seca e cheia induzidas) foi avaliada ao nível de toda a fauna e para os táxons de Chironomidae. As alterações do nível da água foram acompanhadas por alterações na estrutura da fauna fitófila, com variação temporal na densidade dos grupos, especialmente de Hexapoda, Mollusca e Protozoa. As mudanças ambientais relacionadas à contração (seca), e conseqüente concentração das macrófitas na área central da lagoa, e ampliação (cheia) das regiões limnética e litorânea geraram uma substituição de grupos dominantes (reduzindo a densidade de Chironomidae e aumentando a de Physa marmorata durante o PR), aumento na riqueza e maior diversidade e equitabilidade no PE. Os distúrbios causaram redução na densidade das três subfamílias de Chironomidae, principalmente de Chironominae, com maior riqueza e dominância em todas as datas ...
Abstract: Not available
Doutor
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Jordan, Kyle K. "The effects of landscaping mulch on invertebrate populations and soil characteristics." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1092784271.

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Jordan, Kyle Kenton. "The effects of landscaping mulch on invertebrate populations and soil characteristics." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092784271.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains x, 83 p.; also includes graphics (some col.). Includes bibliographical references (p. 77-83). Available online via OhioLINK's ETD Center
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Simpson, Ian Charles. "The impact of agricultural practices on the aquatic invertebrate populations of ricefields." Thesis, Cardiff University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274018.

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Ojala, Jeffrey Veikko. "Invertebrate phenology and prey selection of three sympatric species of Salmonids." Connect to this title online, 2008. http://scholarworks.umass.edu/theses/97/.

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Steffan, Shawn Alan. "Biodiversity and fear ecology the cascading effects of species richness and nontrophic interactions /." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Spring2009/s_steffan_041709.pdf.

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Hofmann, T. A. "The effects of grassland management on the invertebrate populations of coastal grazing marshes." Thesis, University of Essex, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412344.

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Books on the topic "Invertebrate populations"

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Kingsley, Kenneth J. Invertebrates of Organ Pipe Cactus National Monument, Arizona. Tucson, Ariz: U.S. Geological Survey, Cooperative Park Studies Unit, School of Renewable Natural Resources, 1998.

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Invertebrate surveys for conservation. Oxford: Oxford University Press, 1998.

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Shearer, Jeffrey S. Macroinvertebrate bioassessment of Black Hills streams, South Dakota: Final report. Rapid City, S.D: South Dakota Dept. of Game, Fish and Parks, 2006.

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Environment, Alberta Alberta. Benthic invertebrate assessment in Wabamun Lake, November 2002. Edmonton: Alberta Environment, 2003.

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Wiens, A. P. Surveys of benthic macroinvertebrates in Playgreen and Kiskittogisu Lakes, Northern Manitoba. Winnipeg, Man: Central and Arctic Region, Dept. of Fisheries and Oceans, 1991.

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Shepherd, Philippa. Changes in sediment types and invertebrate fauna in the intertidal mudflats of the Bay of Fundy between 1977 and 1994. Sackville, N.B: Canadian Wildlife Service, 1995.

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Shepherd, Philippa. Changes in sediment types and invertebrate fauna in the intertidal mudflats of the Bay of Fundy between 1977 and 1994. Sackville, N.B: Canadian Wildlife Service, 1994.

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P, Barratt Barbara I., and New Zealand. Dept. of Conservation., eds. Impact of fire on tussock grassland invertebrate populations. Wellington, N.Z: Publishing Team, Dept. of Conservation, 2009.

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Gunawardene, Nihara R. The terrestrial invertebrate fauna of Barrow Island, Western Australia. Perth, Western Australia: Western Australian Museum, 2013.

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I, Berenboĭm B., and Poli͡a︡rnyĭ nauchno-issledovatelʹskiĭ institut morskogo rybnogo khozi͡a︡ĭstva i okeanografii im. N.M. Knipovicha., eds. Issledovanii͡a︡ promyslovykh bespozvonochnykh v Barent͡s︡evom more: Sbornik nauchnykh trudov. Murmansk: Izd-vo PINRO, 1997.

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Book chapters on the topic "Invertebrate populations"

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Van de Vyver, Gysèle. "Histocompatibility Responses in Freshwater Sponges: A Model for Studies of Cell-Cell Interactions in Natural Populations and Experimental Systems." In Invertebrate Historecognition, 1–14. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1053-2_1.

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Rockwell, R. F., and Louis Levine. "Chromosomal Polymorphism and Vagility in Natural Populations of Drosophila pseudoobscura." In Evolutionary Genetics of Invertebrate Behavior, 19–32. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-3487-1_3.

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Schneider, John C., and Richard T. Roush. "Genetic Differences in Oviposition Preference Between Two Populations of Heliothis virescens." In Evolutionary Genetics of Invertebrate Behavior, 163–71. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-3487-1_16.

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Vacelet, Jean, and Robert Garrone. "Two Distinct Populations of Collagen Fibrils in A “Sclerosponge” (Porifera)." In Biology of Invertebrate and Lower Vertebrate Collagens, 183–89. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7636-1_14.

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Downing, J. A. "The effect of habitat structure on the spatial distribution of freshwater invertebrate populations." In Habitat Structure, 87–106. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3076-9_5.

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Hinzke, Tjorven, Manuel Kleiner, and Stephanie Markert. "Centrifugation-Based Enrichment of Bacterial Cell Populations for Metaproteomic Studies on Bacteria–Invertebrate Symbioses." In Methods in Molecular Biology, 319–34. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8695-8_22.

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Seed, Raymond. "Invertebrate Predators and their Role in Structuring Coastal and Estuarine Populations of Filter Feeding Bivalves." In Bivalve Filter Feeders, 149–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78353-1_5.

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Suchanek, T. H., P. J. Richerson, L. J. Holts, B. A. Lamphere, C. E. Woodmansee, D. G. Slotton, E. J. Harner, and L. A. Woodward. "Impacts of Mercury on Benthic Invertebrate Populations and Communities within the Aquatic Ecosystem of Clear Lake, California." In Mercury as a Global Pollutant, 951–60. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0153-0_103.

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Cross, T. F., G. Burnell, J. Coughlan, S. Culloty, E. Dillane, P. McGinnity, and E. Rogan. "Detrimental Genetic Effects of Interactions Between Reared Strains and Wild Populations of Marine and Anadromous Fish and Invertebrate Species." In Aquaculture in the Ecosystem, 117–54. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6810-2_4.

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Solter, Leellen F., and James J. Becnel. "The Pathogen Population." In Ecology of Invertebrate Diseases, 49–99. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119256106.ch3.

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Conference papers on the topic "Invertebrate populations"

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Alekseev, M. A. "SUSCEPTIBILITY OF INSECT POPULATIONS TO AVERMECTINS." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-61.

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Brief review on avermectin resistance in insects of sanitary and hygienic and medical value is given. In our country, avermectins upon their rational use will be an important component in the system of measures of non-specific prevention of human infectious diseases.
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Ilyasov, R. A., A. G. Nikolenko, and H. W. Kwon. "GENETIC IMPROVEMENT OF HONEY BEES FOR KEEPING IN EXTREMAL CLIMATIC CONDITIONS." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-55.

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Genetic improvement of honey bee populations based on molecular genetics features is faster and precision in comparison with morphometry and behavior-based methods. We developed the method based on nine nuclear microsatellite loci that allow a selection of most adaptive honey bee colonies by genetically defined features. Our study the heterozygosity of the dark European bee A. m. mellifera inhabiting the extremely cold region of the Ural Mountains to provide a marker-assisted selection for revealing the high adapted to extremely cold climate honey bee population can be applied for markerassisted selection of honey bees adapted to beekeeping in extremal climatic conditions.
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Ostroverkhova, N. V. "DARK FOREST BEE APIS MELLIFERA MELLIFERA L. IN SIBERIA: CURRENT STATE AND WAYS OF POPULATION CONSERVATION." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-56.

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Screening studies of the honey bee in Siberia made it possible to identify the dark forest bee Apis mellifera mellifera populations in the Tomsk region, Krasnoyarsk and Altai territories, and the Altai Republic. A comparative analysis of the genetic diversity of the dark forest bee populations of Siberia, the Urals and Europe, carried out according to the data of the molecular genetic study of the mitochondrial and nuclear genomes, suggests the existence of the Siberian ecotype of the Middle Russian breed. The studied bee colonies are characterized by a high adaptive potential (high degree of "acclimatization") and good economically significant indicators. To preserve the gene pool of the Middle Russian breed of Siberian populations, monitoring studies, ecological and genetic analysis of bee colonies as well as selection and breeding work in the Tomsk bee farm are carried out.
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Cabrera Vera, Teresa, Sheila McClure, Jess Pelaez, and Carlos Pelaez. "ANALYZING THE EFFECT OF WATER CONSTRAINTS AND SEASONAL FLUCTUATIONS ON INVERTEBRATE POPULATIONS WITHIN AN INTERDISCIPLINARY FRAMEWORK." In 113th Annual GSA Cordilleran Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017cd-293003.

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Soboleva, E. S., V. S. Fedorova, V. A. Burlak, M. V. Sharakhova, and G. N. Artemov. "INVERSION POLYMORPHISM OF NATURAL POPULATIONS ANOPHELES BEKLEMISHEVI STEGNII ET KABANOVA IN WESTERN SIBERIA." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-35.

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The geographical distribution and inversion polymorphism of malaria mosquitoes Anopheles beklemishevi Stegnii et Kabanova in the West Siberia were investigated. X chromosome homozygous cytotypes were defined by fluorescent in situ hybridization of microdissected DNA-probe, labeling the breakpoints region of X chromosome inversions. For the first time the samples, which are homozygous and hemizygous by inversions X1 и X2 were detected. Cytotypes representation and frequencies have not differences between northern and southern (Altay) population of the malaria mosquitoes.
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Lyabzina, S. N., and D. F. Zinnikov. "THE USE OF PHEROMONE TRAPS IN TRAINING FIELD PRACTICE." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-23.

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In field practice on invertebrate zoology and other subjects, in addition to the traditional methods of collecting insects, we can use pheromone traps. Traps were applied in studying the dynamics of xylophilous insects: a sawyer beetle and two bark beetles (an eight-dentated bark beetle and a six-dentated bark beetle). The pheromonitoring have been obtained seasonal variations in the number of populations and density of these species of some nature conservation area in Karelia. The collection efficiency of bark beetles during the period of the maximum number of species was about 600 individuals.
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Davlianidze, T. A., and O. Yu Eremina. "CHLORPHENAPYR AND INDOXACARB - NEW INSECTICIDES IN THE CONTROL OF FLIES." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-68.

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At the moment, the actual problem is the search for new insecticides. The use of the same insecticides over the years has led to the emergence of resistant insect populations. Every year the number of resistant populations increases. However, the most dangerous and economically significant species are usually resistant to a large number of pesticides over a large area. There is a need to introduce new groups of chemical compounds into IPM. Indoxacarb and chlorfenapyr-based products are highly effective broad-spectrum drugs. Both insecticides have a strong effect on insects in the form of bait.
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Roslavtseva, S. A., and K. S. Krivonos. "INORGANIC SUBSTANCES AND THEIR EFFECTS ON INSECTS." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-76.

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The return of interest in the use of inorganic substances as insecticides is associated with the development of resistance to traditional organic insecticides from the classes of organophosphorus compounds (OPs), carbamates and pyrethroids in populations of insect vectors of pathogens. In this regard, we have developed an insecticide based on a mixture of diatomaceous powder (DP) with silica gel, which is recommended primarily for controlling resistant populations of bed bugs, as well as German cockroaches, fleas, and crickets, and a special insecticide (a mixture of DP with boric acid) for controlling German and black cockroaches and crickets.
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Romanenko, V. N. "PERIODS OF ACTIVITY DERMACENTOR RETICULATUS IN THE TAIGA ZONE." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-75.

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The range of D. reticulatus ticks mainly covers forest-steppe and steppe, where they occupy open spaces. The discovery of high-abundance populations of this tick in the taiga zone is a rare phenomenon. On the outskirts of the city of Tomsk, on the coastal slope of the Tom River of the south-southwestern exposure, such a population was found in 2015. In 2018, this species was also found on the slope of the southern exposure, on the outskirts of the city, which has a very rare young stand. In contrast to the coastal slope, people practically did not appear here, which made it possible to trace the natural dynamics of the population and, using marks, determine the duration of their life. Here, mites appeared on the surface immediately after the snow melted. The spring period of activity lasted until the end of June, then during July there was a summer diapause, and in the beginning of August the autumn period of activity began. The number in spring was higher than in autumn. The life span, as shown by the tagging, in this area, is no more than 1 year.
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Frolova, A. I. "RANGE OF DIAGNOSTIC CONCENTRATIONS FROM DIFFERENT GROUPS OF INSECTICIDES IN RELATION TO INVASIVE SPECIES OF MOSQUITOES OF THE GENUS AEDES." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-82.

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Data on the susceptibility to insecticides of various structures in mosquito larvae of Aedes albopictus that is a vector of arboviral fevers are given. Diagnostic concentrations of insecticides for the detection of insecticide resistance in Ae. albopictus populations from different districts of the Russia Black Sea coast of the Caucasus are calculated.
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Reports on the topic "Invertebrate populations"

1

Cummins, K. W. Pathogenic regulation of running water invertebrate populations. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/7067065.

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Cummins, K. W. Pathogenic regulation of running water invertebrate populations. Final progress report. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10158851.

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Kienzler, Mariann, D. H. Alban, and D. A. Perala. Soil Invertebrate and Microbial Populations Under Three Tree Species on the Same Soil Type. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station, 1986. http://dx.doi.org/10.2737/nc-rn-337.

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Sprague, Joshua, David Kushner, James Grunden, Jamie McClain, Benjamin Grime, and Cullen Molitor. Channel Islands National Park Kelp Forest Monitoring Program: Annual report 2014. National Park Service, August 2022. http://dx.doi.org/10.36967/2293855.

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Channel Islands National Park (CHIS) has conducted long-term ecological monitoring of the kelp forests around San Miguel, Santa Rosa, Santa Cruz, Anacapa and Santa Barbara Islands since 1982. The original permanent transects were established at 16 sites between 1981 and 1986 with the first sampling beginning in 1982, this being the 33rd year of monitoring. An additional site, Miracle Mile, was established at San Miguel Island in 2001 by a commercial fisherman with assistance from the park. Miracle Mile was partially monitored from 2002 to 2004, and then fully monitored (using all KFM protocols) since 2005. In 2005, 16 additional permanent sites were established to collect baseline data from inside and adjacent to four marine reserves that were established in 2003. Sampling results from all 33 sites mentioned above are included in this report. Funding for the Kelp Forest Monitoring Program (KFM) in 2014 was provided by the National Park Service (NPS). The 2014 monitoring efforts utilized 49 days of vessel time to conduct 1,040 dives for a total of 1,059 hours of bottom time. Population dynamics of a select list of 71 “indicator species” (consisting of taxa or categories of algae, fish, and invertebrates) were measured at the 33 permanent sites. In addition, population dynamics were measured for all additional species of fish observed at the sites during the roving diver fish count. Survey techniques follow the CHIS Kelp Forest Monitoring Protocol Handbook (Davis et al. 1997) and an update to the sampling protocol handbook currently being developed (Kushner and Sprague, in progress). The techniques utilize SCUBA and surface-supplied-air to conduct the following monitoring protocols: 1 m2 quadrats, 5 m2 quadrats, band transects, random point contacts, fish transects, roving diver fish counts, video transects, size frequency measurements, and artificial recruitment modules. Hourly temperature data were collected using remote temperature loggers at 32 sites, the exception being Miracle Mile where there is no temperature logger installed. This annual report contains a brief description of each site including any notable observations or anomalies, a summary of methods used, and monitoring results for 2014. All the data collected during 2014 can be found in the appendices and in an Excel workbook on the NPS Integrated Resource Management Applications (IRMA) portal. In the 2013 annual report (Sprague et al. 2020) several changes were made to the appendices. Previously, annual report density and percent cover data tables only included the current year’s data. Now, density and percent cover data are presented in graphical format and include all years of available monitoring data. Roving diver fish count (RDFC), fish size frequency, natural habitat size frequency, and Artificial Recruitment Module (ARM) size frequency data are now stored on IRMA at https://irma.nps.gov/DataStore/Reference/Profile/2259651. The temperature data graphs in Appendix L include the same graphs that were used in past reports, but include additional violin plot sections that compare monthly means from the current year to past years. In addition to the changes listed above, the layout of the discussion section was reordered by species instead of by site. The status of kelp forests differed among the five park islands. This is a result of a combination of factors including but not limited to, oceanography, biogeography and associated differences in species abundance and composition, as well as sport and commercial fishing pressure. All 33 permanent sites were established in areas that had or were historically known to have had kelp forests in the past. In 2014, 15 of the 33 sites monitored were characterized as developing kelp forest, kelp forest or mature kelp forest. In addition, three sites were in a state of transition. Two sites were part kelp forest and part dominated by Strongylocentrotus purpuratus...
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Benthic invertebrate population characteristics as affected by water quality in coal-bearing regions of Tennessee. US Geological Survey, 1986. http://dx.doi.org/10.3133/wri854227.

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