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Topic: Detritivorous

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	RedOrbit - Science - Microbial links and element flows in nested detrital food-webs (Site not responding. Last check: 2007-11-03)
		Large detritivores such as isopods, millipedes and earthworms, and large predators, such as spiders, carabid beetles and centipedes, are often not included.
		It is assumed that all detritivorous animals depend not only on detritus but also on microbial productivity, and use microbial cells as sources of nitrogen and phosphorus, whereas energy (carbohydrates) can be assimilated directly from plant tissues transformed by microorganisms.
		Rossi, L., Fano, A.E. (1979) Role of fungi in the trophic niche of the congeneric detritivorous Asellus aquaticus and A. coxalis (Isopoda).
	www.redorbit.com /news/stories/2/2003/09/03/story104.html (4549 words)

	Proceedings of the second international symposium on the management of large rivers for fisheries: Volume II
		Although some detritivorous fishes consume coarse vegetative detritus, most of the material classified as detritus in gut contents is fine amorphous material of undetermined origin.
		Detritivorous fishes form major portions of the diets of piscivorous catfishes in large South American rivers (Barthem and Goulding 1997; Barbarino and Winemiller unpublished).
		The gizzard shad is a common detritivore and periphyton grazer of lowland rivers in North America and could significantly affect ecosystem dynamics.
	www.fao.org /docrep/007/ad526e/ad526e0l.htm (11693 words)

	Wikinfo \| Fungus
		Two main ecological niches occupied by fungi are that of the decomposer (detritivore) or saprophyte, and that of the parasite.
		The only difference between detritivorous and parasitic fungi is that the latter grow on living organisms, while the former grow on dead organisms.
		Some of the detritivorous fungi are also considered "facultative parasites," growing on weakened or dying organisms.
	www.wikinfo.org /wiki.php?title=Fungi (1062 words)

	Consumer Influence on Ecosystem Structure and Function I - North American Benthological Society [NB]
		The flux of nitrogen into fine benthic particulate compartments was 46% greater when detritivorous fish were removed, but long-term N loss was much higher from these compartments.
		In contrast, in the presence of detritivorous fish N was retained by more stable epilithic biofilms.
		In the ecologically intact system, detritivorous fish influence the fates and fluxes of N, which increases N storage by this headwater stream.
	www.agu.org /meetings/sm05/sm05-sessions/sm05_NB21B.html (1873 words)

	Loyola University Chicago: Biology Research
		When leaf litter that is chemically altered by CO enrichment was introduced into natural stream and lake ecosystems, we measured significant reductions in microbial colonization and growth.
		In addition, when this leaf litter was fed to numerous species of aquatic macroinvertebrate detritivores, their consumption, assimilation efficiency, development and growth were significantly reduced.
		Effects of atmospheric CO enrichment and sunlight on degradation of plant particulate and dissolved organic matter and microbial utilization.
	www.luc.edu /depts/biology/tuchman.htm (612 words)

	Detritivore - Wikipedia, the free encyclopedia
		Detritivores (also known as saprophages, detrivores or detritus feeders) are organisms that recycle detritus (decomposing organic material), returning it into the food chain.
		The detritus may already have been partially or fully decomposed by decomposers.
		Groups of detritivorous animals include: millipedes, woodlice, dung beetles, dung flies and burying beetles.
	en.wikipedia.org /wiki/Detritivore (120 words)

	ESA 2005 (Site not responding. Last check: 2007-11-03)
		Both grazing and detritivorous arthropods were collected using a vacuum suction-sampler and a soil corer.
		Where Phragmites was prevalent, detritivorous flies and crustaceans were prominent members of the arthropod community and herbivorous insects such as planthoppers were rare.
		These results suggest that the invasion of Connecticut marshes by Phragmites is having profound effects on the diversity and abundance of arthropod detritivores, herbivores, predators and parasitoids.
	abstracts.co.allenpress.com /pweb/esa2005/document?ID=49678 (335 words)

	Carbon and nitrogen stoichiometry of detritivorous fish: gut contents, tissues, and excretions - NABS Communication - ...
		Gizzard shad (Dorosoma cepedianum) are abundant detritivores in many Southern United States reservoirs.
		Although there is an abundant source of food for these fish, their food quality may vary along the axis of the reservoir with high influx of allochthonous nutrients in the riverine zone and nutrient limitation in the lacustrine zone.
		We also calculated ammonia excretion rates for gizzard shad and determined if variations in excretions were correlated with stoichiometric values of tissues and foregut contents.
	www.benthos.org /database/allnabstracts.cfm/db/Anchorage2006abstracts/id/539 (233 words)

	[No title]
		Many larval detritivorous insects harbor symbiotic bacteria in their digestive tracts that help degrade cellulose or they produce the enzyme cellulase themselves.
		Life Histories of the Major Aquatic Insect Groups The Mayflies (Order Ephemeroptera) Adult mayflies are terrestrial but remain near water during their brief adult lives whereas the larvae are aquatic.
		Productivity of detritivorous and herbivorous benthos is at least 5 - 10 times as high as that among predatory organisms (why?).
	www.montana.edu /ecology/courses/biol404/inverts2.doc (1096 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		It is proposed here that in warm-water lakes and reservoirs, fish affect phytoplankton primarily through the nutrient pump mechanism rather than through conventional food chain interactions.
		The specific objectives are to quantify the community level effects of detritivorous fish on lake phytoplankton communities.
		Hypotheses to be tested include: 1) detritivorous fish affect phytoplankton via the nutrient pump mechanism, 2) the effects of the nutrient pump mechanism is dependent on fish population structure, and detrital nutrient content, and 3) detritivorous fish are a major source of nutrients to phytoplankton in small reservoirs during times with stream inflows are low.
	www.cs.utexas.edu /users/yguan/NSFAbstracts/Abstracts/BIO/DEB.BIO.a9318452.txt (206 words)

	Maynard H. Schaus
		Nitrogen and Phosphorus Excretion by Detritivorous Gizzard Shad (Dorosoma cepedianum) in a Reservoir Ecosystem.
		"Detritivorous Fish as a Link Among Terrestrial, Benthic, and Pelagic Ecosystems in an Agricultural Watershed".
		Sigma Xi, Grant in the Aid of Research - "The Impacts of a Detritivorous Fish on the Nutrient Budgets and Community Dynamics of Inland Reservoirs: Influences of Sediment Nutrient Content", $450, Sole Principal Investigator.
	facultystaff.vwc.edu /~mschaus/mhscv.htm (762 words)

	Selected Papers from the 7th FECS Conference - ScientificJournals.com
		— detritivorous fish (N=20) and Perna perna — filter-feeding bivalves (N=190), which are widely consumed by the population.
		The average THg content in detritivorous fish was 15.4  5.8 microgram kg-1 wet wt., whereas THg concentrations ranged from 4.1 to 53.5 microgram kg-1 wet wt.
		MeHg concentration in detritivorous fish was similar to MeHg concentration in molluscs, but there was a significant difference in the MeHg/ THg ratio: the carnivorous fish presented higher MeHg percentages (98%) than the detritivorous fish (54%) and the molluscs (33%).
	www.scientificjournals.com /sj/espr/abstract/ArtikelId/4362 (555 words)

	NANFA Mailing List Archive: Re: NANFA-L-- Detritivorous snail f (Site not responding. Last check: 2007-11-03)
		Re: NANFA-L-- Detritivorous snail for Native Fish tank
		Maybe in reply to: SHasloue at kdhe.state.ks.us: "NANFA-L-- Detritivorous snail for Native Fish tank"
		Maybe reply: Moontanman at aol.com: "Re: NANFA-L-- Detritivorous snail for Native Fish tank"
	www.nanfa.org /archive/nanfa/nanfa-loct04/0029.html (316 words)

	Thesis by Jouni Laakso
		N mineralisation, and plant growth and N uptake increased in the presence of microbivorous and detritivorous fauna but their predators generally had a weak influence on these processes.
		1980), have a potential to indirectly affect excretion of N and microbial activity by controlling the biomass of detritivores and microbivores (e.g.
		As detritivorous and microbivorous fauna are known for their significant direct and indirect contributions to decomposition and nutrient cycling (Verhoef and Brussaard 1990), I also assessed the role of horizontal heterogeneity of this fauna by controlling
	www.helsinki.fi /~jlaakso/reprints/Thesis.html (7225 words)

	Grupo Mexicano de Ciclidófilos - Herichthys minckleyi
		The molluscivorous form inhabits in some springs more and besides in the Mezquites river, the detritivorous form is the more widely distributed in the valley springs.
		The detritivorous form feed upon organic detritus and vegetal material.
		All of the three forms although is special the detritivorus take advantage of any fallen arthropods adn larvae that fell in the water (Sage and Selander, 1975).
	www.petsforum.com /gmc/cichlids/species/herichthys/minckleyi_en.html (1232 words)

	Inter Research » MEPS » v228 » p119-130
		cordatus was the most prominent in terms of biomass (75% of the total), the detritivorous fiddler crabs and P.
		A system picture emerges whereby energy flow is strongly dominated by herbivorous and detritivorous species.
		Both guilds probably promote mangrove primary production by (1) conserving nutrients in the system, (2) enhancing nutrient remineralization, and (3) oxygenizing the soil through their burrowing and feeding activities.
	www.int-res.com /abstracts/meps/v228/p119-130 (404 words)

	Ocean Biogeographic Information System
		Around the Island of Kolguyev, the fauna was dominated by sub-surface detritivorous Polychaeta.
		The Kara Strait area showed some spatial variation in faunal characteristics, but generally contained high numbers of surface deposit feeding Polychaeta and Crustacea, as well as encrusting suspensivores on stones.
		The stations sampled between Kolguyev and the Pechora Bay contained large amounts of macrofaunal Foraminifera and detritivorous Polychaeta, while the fauna sampled in the Pechora Bay was typical of northern, low salinity environments.
	www.iobis.org /OBISWEB/ObisMeta.jsp?sourceID=40 (282 words)

	ASLO Summer Meeting 2005, Santiago de Compostela, Spain (Site not responding. Last check: 2007-11-03)
		The relative magnitudes of new versus recycled nutrient supply, and the processes sustaining new and recycled production, are rarely quantified in freshwater ecosystems.
		We quantified new and recycled phosphorus supply and primary production rates in a hypereutrophic reservoir, as well as the rates at which sediment-feeding detritivorous fish (gizzard shad) provide new P by excreting sediment-derived P into the water column.
		We conclude that a substantial proportion of primary production is fueled by new nutrients, and that nutrient excretion by detritivorous fish comprises a large proportion of new P supply.
	aslo.org /meetings/santiago2005/abstracts/970.htm (152 words)

	(NB21B-02) Alteration of the Fates and Fluxes of Nitrogen by Detritivorous Fish: a Whole-Stream Manipulation and ...
		(NB21B-02) Alteration of the Fates and Fluxes of Nitrogen by Detritivorous Fish: a Whole-Stream Manipulation and a
		We used a large-scale experimental approach to remove Prochilodus from a diverse assemblage, and measured the effects of its loss on the stream nitrogen cycle using a
		-N, but when detritivorous fish were present nitrification was 30% higher.
	www.benthos.org /database/allnabstracts.cfm/db/NewOrleans2005abstracts/id/91 (292 words)

	NANFA Mailing List Archive: Re: NANFA-L-- Detritivorous snail f (Site not responding. Last check: 2007-11-03)
		Next message: Snailcollector at cs.com: "Re: NANFA-L-- Detritivorous snail for Native Fish tank"
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	www.nanfa.org /archive/nanfa/nanfa-loct04/0047.html (240 words)

	Lepidopterology.com \| News \| Just printed
		Immature stages of Calycopis caulonia (Hewitson, 1877) (Lepidoptera, Lycaenidae, Theclinae, Eumaeini), with notes on rearing detritivorous hairstreaks on artificial diet
		Details of egg, larval, and pupal morphology are described and illustrated for Calycopis caulonia (Hewitson).
		Butterflies of Britain and Europe — A comprehensive field guide to all the butterfly species of Britain and Europe, illustrated with over 2,000 paintings
	www.lepidopterology.com /news/printed.htm (208 words)

	New curimatid found in Peru \| Practical Fishkeeping magazine
		The new fish can be told apart from other Cyphocharax by a number of meristic and morphological characters and by its distinctive colouration - it has a dark bar running from the back of the orbit to the rear of the gill cover.
		The species is one of around 34 species in the Cyphocharax genus, most of which are detritivorous fishes which vaguely resemble drab versions of Semaprochilodus sometimes kept in aquariums.
		The fish typically reach a size of around 20cm/10".
	www.practicalfishkeeping.co.uk /pfk/pages/item.php?news=859 (588 words)

	UBC Zoology - Diane Srivastava
		This is a large question, but we can begin to get an idea of the answers by using small-scale communities, such as the detritivorous insects in bromeliads (see below) and enclosures in streams.
		Intertidal plant communities of a sub-Arctic salt marsh, isostatic uplift and herbivory.
		Numerical and per capita responses to species loss: mechanisms maintaining ecosystem function in a community of stream insect detritivores.
	www.zoology.ubc.ca /~srivast (1124 words)

	NANFA Mailing List Archive: NANFA-L-- Detritivorous snail for N (Site not responding. Last check: 2007-11-03)
		Subject: NANFA-L-- Detritivorous snail for Native Fish tank
		Next in thread: Joshua L. Wiegert: "Re: NANFA-L-- Detritivorous snail for Native Fish tank"
		Reply: SHasloue at kdhe.state.ks.us: "NANFA-L-- Detritivorous snail for Native Fish tank"
	www.nanfa.org /archive/nanfa/nanfa-loct04/0024.html (275 words)

	Chapter 3b Zygomycota
		Bob Lichtwardt's 1986 book gives a fine account of this offbeat group, though 13 new genera and 79 new species of Trichomycetes have been described since it was published, bringing the total to 52 genera and 210 species.
		Trichomycetes are common in herbivorous or detritivorous arthropods, but rare in predaceous species.
		A single species of trichomycete can usually inhabit several related host species.
	www.mycolog.com /CHAP3b.htm (2817 words)

	NANFA Mailing List Archive: By Thread (Site not responding. Last check: 2007-11-03)
		NANFA-L-- Detritivorous snail for Native Fish tank SHasloue at kdhe.state.ks.us
		Re: NANFA-L-- Detritivorous snail for Native Fish tank Snailcollector at cs.com
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	www.nanfa.org /archive/nanfa/nanfa-loct04/index.html (1372 words)

	BEES: behavior • ecology • evolution • systematics
		Through a series of lab and field experiments, I will measure the costs and benefits of each diet regime.
		Ultimately, I hope to extrapolate how herbivory may have originated in ancestrally detritivorous species.
		BEES Program Office, 4209 Bio/Psych Building, College of Chemical and Life Sciences,
	www.life.umd.edu /grad/BEES/students/paustian.html (170 words)

	GCE-LTER Biography :: Caroline McFarlin
		McFarlin, C.R. Impact of Fertilization on a Salt Marsh Food Web in Georgia.
		McFarlin, C.R., Buck, T.L., Newell, S.Y. and Pennings, S.C. Poster: Impact of fertilization on the abundance of two detritivorous snails.
		Uplands to Lowlands: Coastal Processes in a Time of Global Change.
	gce-lter.marsci.uga.edu /lter/asp/db/personnel_bios.asp?id=cmcfarlin (119 words)

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