June 6, 2023

Recolonizing Gray Wolves Increase Parasite Infection Risk in Their Prey

Abstract

The recent recolonization of Central Europe by the European gray wolf (Canis lupus) provides an opportunity to study the dynamics of parasite transmission for cases when a definitive host returns after a phase of local extinction. We investigated whether a newly established wolf population increased the prevalence of those parasites in ungulate intermediate hosts representing wolf prey, whether some parasite species are particularly well adapted to wolves, and the potential basis for such adaptations. We recorded Sarcocystis species richness in wolves and Sarcocystis prevalence in ungulates harvested in study sites with and without permanent wolf presence in Germany using microscopy and DNA metabarcoding. Sarcocystis prevalence in red deer (Cervus elaphus) was significantly higher in wolf areas (79.7%) than in control areas (26.3%) but not in roe deer (Capreolus capreolus) (97.2% vs. 90.4%) or wild boar (Sus scrofa) (82.8% vs. 64.9%). Of 11 Sarcocystis species, Sarcocystis taeniata and Sarcocystis grueneri occurred more often in wolves than expected from the Sarcocystis infection patterns of ungulate prey. Both Sarcocystis species showed a higher increase in prevalence in ungulates in wolf areas than other Sarcocystis species, suggesting that they are particularly well adapted to wolves, and are examples of “wolf specialists”. Sarcocystis species richness in wolves was significantly higher in pups than in adults. “Wolf specialists” persisted during wolf maturation. The results of this study demonstrate that (1) predator–prey interactions influence parasite prevalence, if both predator and prey are part of the parasite life cycle, (2) mesopredators do not necessarily replace the apex predator in parasite transmission dynamics for particular parasites of which the apex predator is the definitive host, even if meso- and apex predators were from the same taxonomic family (here: Canidae, e.g., red foxes Vulpes vulpes), and (3) age-dependent immune maturation contributes to the control of protozoan infection in wolves.<<<Read More>>>

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Parasites “A Major Threat to Moose” But Leads “Occasionally to Death.” HUH?

Perhaps Cornell University is at it again. The last time I recall the antics of Cornell University, was when they, in their attempt to do something about the overrunning deer population on campus, decided to conduct some “tubal ligations” on some of the female population of deer.

When a university, or any other organization, is wallowing in liberal idiocy, stupid things happen to stupid people. What the brilliant wildlife department at the university failed to understand, in their blindness, was that tubal ligations on female deer only caused those female deer to go into estrus and remain in estrus until they had successfully mated. Now, without the ability to successfully mate…The result? Every buck within a hundred miles descended on Cornell looking for action.

And now, the $34,000.00 a year tuition at Cornell, has students who are conducting tests, and what they call research, to see what are killing the Adirondack moose. They say moose eating snails is how they contract “brain worm,” which ends up killing the moose. However, in one paragraph, the university writes: “…surveys in 2016 on 11 live moose and 22 necropsies and concluded parasites are a major threat to the moose population.” (Emboldening added by editor)

This if followed almost immediately by this: “Foraging moose then ingest infected snails, culminating in a diseased brain and spinal cord, and occasionally death.”(emboldening added by editor)

I may be wrong, but from my perspective, if I was going to state that parasites, from eating snails, are a major threat to the moose population, then it must be that death, and/or failure to reproduce, is at a level high enough the recruitment of new moose calves is lower than total mortality of the adult moose population.

If that is true, then how can the results of foraging moose, eating snails, lead to “occasional death?”

Maybe they should try some tubal ligations.

Understand that by reading Cornell’s own words, they are clueless as to whether moose are eating snails and if so, if it is killing the moose. “Our results show that moose foraging in areas with high soil moisture may likely encounter higher densities of gastropods – snails and slugs – which likely increases the risk of parasitic threats from deer brain worm if the snails are eaten.” (Emboldening added by editor)

I suppose it is just as LIKELY that moose MIGHT eat a truck full of cannabis a LIKELY die!

Here’s one more observation. The student researchers (give em a break, right? So they can graduate and fill our wildlife manager departments with more progressive, brainwashed, environmentalist, idiots.) said they are looking into wet and “water areas” where they think, perhaps they will find these parasitic-laden snails. One area of interest to them is described this way: “Since moose make use of water areas and eat in wet, dense pine forests, they’re susceptible to a large presence of gastropods …”

I grew up in Maine and lived the majority of my adult life here. Maine is the Pine Tree State. Pine forests are everywhere and for some strange reason, the people of Maine decided to call Maine the Pine Tree State. Maine also has moose…more than any other state in the lower contiguous states. I’m going to go out and search for moose eating in “wet, dense pine forests.” And all this time, I thought pine trees, like the hundreds of thousands I have on my small acreage, thrived in dry, sandy places.

I just can’t believe my own eyes!

Maybe I should try some tubal ligations.

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Killing Ticks With Foods Laced With Anti-Parasitic Meds

What could possibly go wrong?

I read an article this morning about how in one area of Texas, where a certain tick carries a disease known as cattle fever. The plan, on deer ranches, is to lace the corn being fed to deer, with this anti-parasitic drug. Hmmm.

One small paragraph in the article states: “The use of treated corn or pellets to control internal parasites in deer is not new, as it has been used by deer and exotic breeders for years. It is not currently legal for use on wild deer, although some ranchers advocate that it should be.” (emboldening added)

In my travels I have heard of suggestions similar to this to kill ticks in deer that cause Lyme disease and winter ticks in moose, that can eventually kill a moose by depleting its blood supply. I don’t believe I have ever heard any serious discussion about this within the Maine Department of Inland Fisheries and Wildlife.

In a related event, those willing to acknowledge that wolves can carry and spread up to 50 different diseases, viruses and parasites, have suggested some kind of “feeding” program that would address the more deadly of the viruses, such as Echinococcus granulosis and Echinococcus multilocularis.

Some of the problems that should be examined thoroughly before any attempt at feeding wild deer and moose medicine-laced foods, is first to have a complete understanding of why there is a problem, where it comes from and how it is spread. We don’t know this information.

In Maine’s case, where Lyme disease is present, and where winter ticks on moose have become a very serious problem for the animal, there is no consensus that can answer any necessary questions. In other words, it hasn’t even been determined if Maine is growing too many moose and in some places, seemingly coincidental to prevalence of Lyme disease, too many deer. Is it responsible to use chemicals in wild deer and moose, simply because we want to see more deer and moose?

There are so many factors that influence diseases, parasites and viruses, the notion to stuff an animal’s food with drugs to supposedly stop one action, might create a firestorm of other problems. Wildlife managers should know these things and if they don’t, it’s time they did.

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Intestinal parasites of wolves in northern and western Canada

ABSTRACT

Gray wolves (Canis lupus L., 1758) are mobile opportunistic predators that can be infected by a wide range of parasites, with many acquired via predator-prey relationships. Historically, many of these parasites were identified only to genus or family, but genetic tools now enable identification of parasite fauna to species and beyond. We examined 191 intestines from wolves harvested for other purposes from regions in the Northwest Territories, British Columbia, Saskatchewan, and Manitoba. Adult helminths were collected from intestinal contents for morphological and molecular identification, and for a subset of wolves, fecal samples were also analyzed to detect helminth eggs and protozoan (oo)cysts. Using both detection methods, we found that 83% of 191 intestines contained one or more parasite species, including cestodes (Taenia spp., Echinococcus spp., and Diphyllobothrium sp.), nematodes (Uncinaria stenocephala, Trichuris spp., Physaloptera spp., and Toxascaris leonina), a trematode (Alaria sp.), and protozoa (Sarcocystis spp., Giardia spp., and Cryptosporidium spp.). Molecular characterization identified one species of Diphyllobothrium (D. latum), three species of Taenia (T. krabbei, T. hydatigena, and T. multiceps), and two Giardia assemblages (B and C). These results demonstrate the diverse diet of wolves, and illustrate the possibility of parasite spillover among wildlife, domestic animals, and people.<<<Read More>>>

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Dogs as Sources and Sentinels of Parasites in Humans and Wildlife, Northern Canada

ABSTRACT

A minimum of 11 genera of parasites, including 7 known or suspected to cause zoonoses, were detected in dogs in 2 northern Canadian communities. Dogs in remote settlements receive minimal veterinary care and may serve as sources and sentinels for parasites in persons and wildlife, and as parasite bridges between wildlife and humans.

Dogs as Sources and Sentinels of Parasites in Humans and Wildlife, Northern Canada (PDF Download Available). Available from: https://www.researchgate.net/publication/5594278_Dogs_as_Sources_and_Sentinels_of_Parasites_in_Humans_and_Wildlife_Northern_Canada [accessed Feb 18, 2016].

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Canines Host to Abortion-Causing Parasite

Eventually, after submitting fetuses to the Wisconsin Veterinary Diagnostic Laboratory for testing, the Koenses found the cause of their herd abortion problem to be Neospora caninum, a protozoan parasite that can affect a variety of large and small animal species, including cows, sheep, deer, goats and horses. The parasite causes a disease called neosporosis, which researchers say has become a leading cause of abortion and neonatal mortality in cattle in Wisconsin, across the U.S. and around the world. In fact, studies have shown that one or more animals in at least half of the dairy and beef herds in the United States have been exposed to this disease.

According to Koens, who has researched neosporosis since his encounter with it five years ago, the Neospora caninum parasite was first recognized as a common cause of cattle abortions in the late 1980s. It wasn’t until 1998, however, that scientists discovered the connection between Neospora caninum and canines.

Source: Canines Host to Abortion-Causing Parasite

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New Hampshire Thinks About Ending Moose Hunts

As with any game specie that reaches population levels, backed by scientific research, that call for the limitation or end of hunting, it should be done for obvious and not so obvious reasons. What is utterly sickening, non scientific and fraudulent, among other things, is to end a hunt, as is being suggested in New Hampshire, and to blame the reduction of moose on global warming.

According to Field and Stream:

Biologists are concerned that warmer winters and hotter summers have lead to an increase in parasites that are drastically affecting moose across the state.

Few will argue that the moose population in New Hampshire has decreased. To place the blame on global warming and its effects on parasites, including the winter tick, is just plain lazy dishonesty. As more and more scientists are finally admitting, the theories and the fraudulent “settled science” of global warming, mostly promoted by Al Gore, can not be backed by any real scientific research, people should be demanding that states, such as New Hampshire, stop using global warming as an excuse for incompetent wildlife management.

Computer modeling has become the new-science, post-normal science way of managing wildlife. Computer modeling might present interesting results, especially when they are designed and used for outcome-based results, the realities are that the results are worthless nonsense.

In the meantime, wildlife populations, like the moose, are suffering from fluctuations and the only excuse officials choose to use to hide their own incompetence is blame it on global warming.

Winter ticks, for example, have been around for a long time and are persistent from Texas to the Yukon. The theory that some are floating is that due to a warmer climate the tick is moving further north. How much further north can you go than the Yukon?

The fish and game departments are responsible for wildlife management. It’s time the fraud of global warming is taken out of the excuse bag and real science is implemented in order to honestly assess the problems at hand.

If, in fact, it is climate change, also known as normal climate cycles, that is the cause for moose reductions, then let’s discover it with honest scientific approach and not rely on some fake computer modeling derived from outcome-based “scientist” designed for the purpose of human control and tax fraud.

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WHO Describes Echinococcosis as “Considerable Public Health Problem”

WHO*Note* – It has been through the difficult and persistent hard work of Scott Rockholm in his research that he found and has shared, “WHO/OIE Manual on Echinococcosis in Humans and Animals: a Public Health Problem of Global Concern.” For this all of us are grateful.

Even though, as is described in this “Manual” that human Echinococcosis(Hydatidosis) has been around since nearly forever, it wasn’t until the introduction of wolves into the Greater Yellowstone Area that some humans became aware of the fact that these wolves and other canines, wild and domestic, can be carriers of untold numbers of diseases and parasites, including the tapeworm Echinococcus granulosus.

When it was discovered in 2009 that over 60% of wolves tested in the Northern Rocky Mountains Distinct Population Segment of gray wolves were infected with the tapeworm Echinococcus granulosus, for many of us seeking truth, we wanted to know the whats, whys and wherefores of this parasite and how it would affect humans. For others, seemingly those whose bent is to protect the wolves that carry and spread this disease, any discussion of the topic usually resulted in the passing on of bad and irresponsible information and a playing down of the seriousness of this disease.

For those readers perhaps not familiar with this website, I have collected much information and studies on this disease and have really only scratched the surface. This information can be found through a link in the top menu bar of the home page. Click this link for more information.

Below is a portion of the “Preface” of the World Health Organization’s Manual. This disease is important enough to WHO and to the World Organization for Animal Health that even the title describes it as a “Public Health Problem of Global Concern.”

This “Manual” relates information about the disease, much of it in areas away from the United States, but the concern grows in this country as more and more wolves disburse throughout other areas of the country increasing the threat of the spread of infectious diseases and harmful parasites. Please bear in mind that over the past near 100 years there have been insignificant populations of wild wolves in America and thus the threat of the spread of E.g, from wolves, has been minimal, but grows as the number of wolves grows. Places around the globe that have always had wolves have dealt with human Echinococcusis for centuries. Because the United States has not, I suppose this has been reason for many, including the professionals we are told will protect us and those that are in charge of overseeing the management of wild canines, such as the wolf, to downplay the real and serious threat of human hydatidosis.

As is pointed out in this report, this threat is not something that should be downplayed as irresponsibly as it has been to date here in the United States. Education should be the first step in understanding how to effectively deal with this disease. For those interested, a copy of this report can be downloaded by clicking on this link.

“The second edition of the WHO Guidelines for Surveillance, Prevention and Control of Echinococcosis/Hydatidosis, published in 1984, was focused on diagnostic methods and control measures available to combat this disease in humans and animals. These guidelines were very well received throughout the world and represented a valuable source of information for medical and Veterinary Services of many countries. Since then the understanding of the epidemiology of echinococcosis has been greatly improved, new diagnostic techniques for both humans and animals have been developed, progress has been made in the treatment of human echinococcosis, and new prevention strategies have emerged with the development of a vaccine against Echinococcus granulosus in intermediate hosts.

In spite of significant progress achieved in the field of research and control, human cystic echinococcosis, caused by Echinococcus granulosus, remains a considerable public health problem in many regions of the world. Ultrasound surveys of populations at risk have shown that cystic echinococcosis is more prevalent than previously anticipated in many endemic regions. To date, disease transmission has been reduced or interrupted in some limited areas only, especially on islands, such as Cyprus, New Zealand and Tasmania. In continental situations, however, E. granulosus control is more difficult, often less effective, is costly and requires sustained efforts over many decades.

Recent studies in Europe, Asia (i.e. People’s Republic of China and Japan) and North America have shown that E. multilocularis, the causative agent of human alveolar echinococcosis, is more widely distributed in the northern hemisphere than previously understood. Alveolar echinococcosis, althrough rare, represents a considerable public health burden as the infection is lethal in most untreated patients and treatment is very costly. In addition, in Central and South America, cases of polycystic echinococcosis in humans, caused by E. vogeli and E. oligarthrus, occur in apparently increasing numbers.”

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Minnesota Found E.G. in Moose in 1971 Knew Then Recruitment Non Sustainable

Image3290I must commend our good friend and ever vigilante researcher, Will Graves, for digging up a report containing data and other information from a report filed after the conclusion of a Minnesota moose hunt in 1971. It was reported that this moose hunt was the first allowed in 49 years in that state. The full report can be found at this link.

I suppose the first thing to note is the simple fact Echinococcus granulosus was found in the lungs of moose. As is a terrific way for biologists to collect data, mandatory check-ins by hunters provided opportunity for biologists to retrieve samples for testing. In addition to the taking of samples at the check stations, hunters were required to reveal the location of their moose kills in order that scientists could visit the site and retrieve more information from gut piles.

Over the past 6 or 8 years, there has been much discussion, at least in certain corners of the country, about the fact that wild canines, specifically being discussed are wolves, are the host species of the tapeworm Echinococcus granulosus. Tiny eggs embedded in and deposited all over the landscape through wolf scat, presents a situation in which wild ungulates, such as deer, elk and moose, while grazing, ingest these eggs. As part of the cycle, hydatid cysts can form in organs throughout the body. Perhaps the most common being the lungs, but also found in the liver, heart and brain. This is what was found in Minnesota.

Humans can also ingest these eggs, the result of which could be fatal. Hydatid cysts in humans is difficult, at best to detect, and perhaps even more so to treat. The greatest threat of humans contracting this disease is probably through contact with the domestic dogs, particularly those that live indoor and outdoor. While outdoors, family dogs can eat infected carrion and/or get the eggs onto their fur and in and around the mouths. Family dogs can be part of the cycle and if not properly de-wormed, can pose a very serious threat to members of the family who live with the dog. Imagine what is happening to you or your child, in the home, when the dog licks your hand or your child’s face.

The point of all this is to state that when some of us, being led by Will Graves, researcher and author of Wolves in Russia: Anxiety Through the Ages and co-author of The Real Wolf, along with George Dovel, editor of the Outdoorsman, Dr. Valerius Geist, professor emeritus University of Calgary, Dr. Delane Kritsky, noted parasitologist at Idaho State University, et. al., took to cyberspace and beyond to get the message out about Echinococcus granulosus, we were all told it didn’t exist and any talk of threats to humans was exaggerated and nothing to be concern with.

And now we discover that biologists in Minnesota over 40 years ago had discovered the presence of E.g. in moose in Minnesota. However, there is much more to this report that Will Graves has unearthed for us.

The moose hunt in Minnesota in 1971 took place in two regions of the state. (Please see map in linked-to report.) The two zones were separated by perhaps 100 miles. One zone located in and identified in the report as the Northeast and one zone in the Northwest. It is here stated that Echinocossus granulosus was “common in the northeast” and not so much in the northwest.

Fascioloides magna was the parasite in the northwest, while Taenia spp. and Echinococcus granulosus were common in the northeast.

I also find it interesting that with today’s prevalence of denial of the presence or risk of threat from Echinococcus granulosus, that biologists in 1971 were, along with other parasites, looking for Echinococcus granulosus. If it was something not of interest, why were they looking for it? Do you suppose over 40 years ago, scientists suspected, with the presence of wolves, moose might be infected?

Field crews investigated as many kill sites as possible. Lungs were examined for the presence of Hydatid cysts (Echinococcus granulosus) and lungworms (Dictyocaulus app.).

The biologists at the time where making the same examinations and taking the same samples from moose harvested in both the Northwest and Northeast hunting zones. What they found when comparing data between the two zones is tell-tale.

The Northeast zone, “carried larger loads of Echinococcus granulosus.” As a matter of fact, a considerably larger load. In the Northeast zone it was found that 60% of the moose carried Echinococcus granulosus. In the Northwest zone, only 10%. There must be an explanation.

The incidence of E. granulosus and Taenia spp. in the northeast is evidence of a higher timber wolf (Canis lupus) population in this part of the state.

43 years ago, wildlife biologists in Minnesota were willing to acknowledge that the higher the concentrations of wolves produced a higher incidence of Echinococcus granulosus in moose. It’s remarkable in a way, when we consider the deliberate roadblocks being constructed by some to prohibit any serious discussions and the educating of the public about this issue of Echinococcus granulosus and the potential threat it can have on humans.

But this isn’t all.

Most of us know that Minnesota is claiming that they don’t have understanding as to why the moose herd in that state is on a serious decline. Some want to blame it all on climate change, the collect-all excuse for everything these days, and a convenient means of covering up incompetence and political agendas. While the distractions and excuses continue to mount, it is my belief that officials in Minnesota pretty much have a distinct reasons and the proof of the beginnings of what has become, or soon will be, a predator pit and an unsustainable moose herd.

This report of 1971 clearly tells anybody interested in truth and facts that in the Northeast zone, where wolves were highly prevalent, the moose recruitment rate stood at such low levels, it would be only a matter of time before the moose would be gone.

Data from the aerial census and classification counts indicate a net productivity of 30-35% in the northwest and 9-15% in the northeast. This indicates a difference is occurring in the survival rate of calves in their first six months of life between the two areas. Area differences in nutrition, predation and parasitism may be responsible for these observed differences in net productivity.

If memory serves me correctly, in 1971 the United States was at the beginning stages of the fake “global cooling” flim-flam, but there was no talk and presentation of excuses as to how a planet, that was going to crumble and crack into millions of pieces due to cold, was responsible for a moose calf recruitment rate in Northeast Minnesota that anyone knew to be unsustainable.

With the environmentalists, which include the ignorant predator protectors and animal rights totalitarians, who want to create what they are attempting to coin as a “new understanding and a paradigm shift” about wolves and other predators, no longer to them are facts, history, real science or common sense anything worth considering. And that is the bottom line truth of what we are dealing with.

Tried and proven wildlife management, even the very basics, tells us that if there is not a high enough survival rate among the new born of any creature, to replace all other mortality, the species will not survive, at least in any sense of healthfulness. Instead, hidden behind other agendas, people want to replace this with “new understandings” and “shifting paradigms.”

Searching for “new understandings and paradigms” Minnesota is looking everywhere for the answer that stares them in the face. Wolves spread disease and devastate games herds and all wildlife and yet the “new understanding” is trying to tell us about trophic cascades and how the wolf creates nirvana.

Oh my God! We’ve actually come to this?

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Tapeworms: Echinococcus Multilocularis and Alveolar Echinococcosis From Foxes to Dogs to People

Tiny tapeworms on the rise: Are you and your pets infected or at risk?

Echinococcus multilocularis is a tiny tapeworm – an intestinal parasite of arctic foxes and red foxes that can also infest the intestines of coyotes and other canids, including domestic dogs.

In humans, the tapeworm causes a disease known as alveolar echinococcosis – but infection is very rare. Recently, however, a combination of factors has made this diagnosis more common, especially in Europe, and vets are concerned.<<<Read More>>>

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