Evaluation of the ornithogenic influence on the trophic state of East Mediterranean wetland ecosystem using trend analysis

Litaor, M. Iggy; Barnea, I.; Reichmann, O.; Zohar, Irit

doi:10.1016/j.scitotenv.2015.07.103

Cited by 11 publications

(8 citation statements)

References 45 publications

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“…Nonmetric multidimensional scaling (NMDS) was then used to investigate the legacy contaminant patterns for each site. Non-parametric Kendall's tau test and Kendall-Theil robust line (with Sen's slope) were used for trends and breakpoint analysis (Granato, 2006;Huang et al, 2015;Kendall, 1948;Litaor et al, 2016;Stonevičius et al, 2014) using KTRLine software developed by the U.S. Geological Survey (USGS). The statistical analyses were performed using SPSS 22 (2014 IBM Corporation) and MATLAB 2016b.…”

Section: Discussionmentioning

confidence: 99%

Polychlorinated biphenyls and organochlorine pesticides concentration patterns and trends in top predator fish of Laurentian Great Lakes from 1999 to 2014

Zhou

Pagano

Crimmins

et al. 2018

Journal of Great Lakes Research

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Concentration patterns and temporal trends of legacy persistent, bioaccumulative and toxic (PBT) contaminants were determined using the Great Lake Fish Monitoring and Surveillance Program (GLFMSP) top predator fish data from 1999 to 2014 and applying Kendall-Theil robust regression after cluster-based age normalization. For most Great Lakes sites, significant decreasing concentration trends ranging from −4.1% to −21.6% per year (with the only exception being mirex in Lake Erie walleye) were found for PBTs including polychlorinated biphenyls (PCBs), dichlorodiphenyl-trichlorethane (DDTs), dieldrin, endrin, chlordane, oxychlordane, nonachlor, mirex, and hexachlorobenzene (HCB) reflecting the successful historical and ongoing reduction of fugitive releases and remediation efforts in the U.S. and Canada including physical removal (dredging) coupled with sediment sequestration. Generally, lower concentrations and faster decreasing trends are observed in western/northern sampling sites compared to eastern/southern sites as the former sites are generally more remote from population centers and industrial activities. PCBs, which can be released from ongoing sources, have the highest concentration, the second slowest decreasing trend, and increasing mass fractions of the contaminants studied suggesting that they will continue to be the legacy contaminant of greatest concern into the future.

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Section: Discussionmentioning

confidence: 99%

Polychlorinated biphenyls and organochlorine pesticides concentration patterns and trends in top predator fish of Laurentian Great Lakes from 1999 to 2014

Zhou

Pagano

Crimmins

et al. 2018

Journal of Great Lakes Research

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“…At another common crane wintering site in Israel, the inflow of P to agricultural soil was even higher (~7 kg P/ha/year compared to ~6.4 kg P/ha/year removal by plant harvesting measured on the scale of a feeding site of ~100 ha) (Litaor et al, 2014 ). While nutrients added to soils by cranes are partly balanced by plant harvesting, the impact on waterways may be more problematic, as was also found at the wintering sites in Spain and Israel (Litaor et al, 2016a ; Navedo et al, 2015 ).…”

Section: Resultsmentioning

confidence: 94%

“…Descriptions of hunting or poisoning cranes to prevent damage referred to single events (as described in section II.1.a.iv). Lure crops and diversionary feeding, that is, fields where the birds can feed undisturbed, have been used in Sweden (Montràs‐Janer et al, 2019 ), Israel (Litaor et al, 2016a ), and North America (Boggie et al, 2018 ; Vogel et al, 2013 ). At an area in New Mexico in which diversionary feeding is practiced, as much as 60% of sandhill crane diet derived from supplemented maize (Boggie et al, 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Winners and losers of land use change: A systematic review of interactions between the world’s crane species (Gruidae) and the agricultural sector

Hemminger

König

Månsson

et al. 2022

Ecology and Evolution

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While agricultural intensification and expansion are major factors driving loss and degradation of natural habitat and species decline, some wildlife species also benefit from agriculturally managed habitats. This may lead to high population densities with impacts on both human livelihoods and wildlife conservation. Cranes are a group of 15 species worldwide, affected both negatively and positively by agricultural practices. While eleven species face critical population declines, numbers of common cranes (Grus grus) and sandhill cranes (Grus canadensis) have increased drastically in the last 40 years. Their increase is associated with higher incidences of crane foraging on agricultural crops, causing financial losses to farmers. Our aim was to synthesize scientific knowledge on the bilateral effects of land use change and crane populations. We conducted a systematic literature review of peer‐reviewed publications on agriculture‐crane interactions (n = 135) and on the importance of agricultural crops in the diet of cranes (n = 81). Agricultural crops constitute a considerable part of the diet of all crane species (average of 37%, most frequently maize (Zea mays L.) and wheat (Triticum aestivum L.)). Crop damage was identified in only 10% of all agriculture‐crane interactions, although one‐third of interactions included cranes foraging on cropland. Using a conceptual framework analysis, we identified two major pathways in agriculture‐crane interactions: (1) habitat loss with negative effects on crane species dependent on specific habitats, and (2) expanding agricultural habitats with superabundant food availability beneficial for opportunistic crane species. The degree to which crane species can adapt to agricultural land use changes may be an important factor explaining their population response. We conclude that multi‐objective management needs to combine land sparing and land sharing strategies at landscape scale. To support viable crane populations while guaranteeing sustainable agricultural production, it is necessary to include the perspectives of diverse stakeholders and streamline conservation initiatives and agricultural policy accordingly.

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“…Ten years of research and monitoring of the climatological, hydrological, nutrients and physico-chemical parameters are summarized and focus is giving to Nitrogen and Phosphorus. The degradation of organic matter originate from submerged vegetation is an internal P source and breaking of organic substances in the peat soil release bounded P which is flushed and migrate by rain drainage into lake Agmon [14] [15]. Peat soil Gypsum dissolution contribute sulfate which is transfer into Lake Agmon through drainage as well as Carbonates (Alkalinity) and partly re-precipitated as CaSO 4 (Gypsum) onto the lake sediments.…”

Section: Discussionmentioning

confidence: 99%

Chemical, Hydrological and Climatological Properties of Lake Agmon, Hula Valley (Israel), (1994-2006)

Gophen¹,

Meron²,

Tsipris³

et al. 2016

OJMH

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The first decade of monitoring program in Lake Agmon (Hula Valley, Northern Israel) is summarized. The presented part of the program include: water discharges, physico-chemical (pH, EC, Temperature) and chemical parameters (TP, TN, TDN, TDP, NO3, NH4, SO4, TDS, TSS,). It was found that Nitrogen concentrations decline from north to south and the opposite for Phosphorus. Resulting of re-suspension by wind direction of western-southern-eastern and averaged maximal velocities of 9-10 m/s is suggested. De-nitrification and particles sedimentation emphasize Lake Agmon as a sink for Nitrogen. Sulfate-Carbonates association and the production of precipitated Gypsum (CaSO4) highlight the sink property of Lake Agmon. Nevertheless Sulfate removal by the Lake Agmon hydrological system is significant.

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Evaluation of the ornithogenic influence on the trophic state of East Mediterranean wetland ecosystem using trend analysis

Cited by 11 publications

References 45 publications

Polychlorinated biphenyls and organochlorine pesticides concentration patterns and trends in top predator fish of Laurentian Great Lakes from 1999 to 2014

Polychlorinated biphenyls and organochlorine pesticides concentration patterns and trends in top predator fish of Laurentian Great Lakes from 1999 to 2014

Winners and losers of land use change: A systematic review of interactions between the world’s crane species (Gruidae) and the agricultural sector

Chemical, Hydrological and Climatological Properties of Lake Agmon, Hula Valley (Israel), (1994-2006)

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