Carnivore management is not just a numbers game, Virginia Tech wildlife scientists assert in response to an article in the Jan. 10 issue of the journal Science that urged “minimum population densities be maintained for persistence of large carnivores, biodiversity, and ecosystem structure.”
“This type of approach may fail in social carnivore species,” said Kathleen alexander, an associate professor of fisheries and wildlife conservation in the College of Natural Resources and Environment. “Predator management is incredibly complex and we need to be extremely cautious in applying blanket approaches which rely on securing some target number or density of individuals in an ecosystem.”
The research-based argument appears in a letter in the March 14 issue of Science and an article abstract in the October 2013 issue of the journal population ecology.
“Life history strategy, including number of offspring, lifespan, diet, and behavior that evolves from ecological pressures of the species in question should also guide management approaches,” wrote Alexander and Claire E. Sanderson, a postdoctoral associate in fisheries and wildlife conservation, in the Science letter.
The research published in Population Ecology evaluated 45 solitary and social medium and large carnivore species and their key life history attributes, population trends, and identified the presence of factors that increase the potential for extinction.
Disturbingly, 73 percent of carnivore species — both social and solitary — were declining, observed Sanderson, Sarah Jobbins, also a postdoctoral associate, and Alexander.
“Social carnivores appeared to be particularly vulnerable with 45 percent threatened by infectious disease but only 3 percent of solitary carnivores similarly impacted,” they report. “In this, increased contact between individuals, disease-related mortality, and loss of individuals below some critical threshold seems to be the issue, pushing social carnivores closer to the brink of extinction.”
Reporting on their research on social carnivores, Sanderson, Jobbins, and Alexander said in the article, “Highly cohesive social species, like African wild dog, require strict participation from all group members … in all areas of life, including predator avoidance, reproductive success, hunting, and survivorship. This life-history strategy can result in enhanced fitness benefits for the group, but also a higher critical threshold for extinction.”
“The number of individuals in the group then becomes the critical factor influencing population persistence,” said Sanderson.
For example, rabies and distemper have caused local extinction of African wild dog in regions of Africa. Even in a large population, transmission of an infectious disease from only a few infected individuals can result in sufficient mortality to push groups below a critical threshold, ultimately threatening population persistence, the researchers report.
It has been found in certain ecosystems that when wild dog packs are reduced to less than four individuals, they may be unable to rear pups because of trade-offs between specialized roles, such as pup guarding and hunting.
“While aggregation of conspecifics may be beneficial for reproduction, hunting,
… Continue reading here.
Dogs News — Sciencedaily
Funny Dogs – Cute and Funny Dog Fail Compilation 2014 by failwindaily “funny dogs, funny, dogs funny, funny dogs sleeping, funny puppies, funny dog, baby and…
Video Rating: 4 / 5
Only Natural Pet Easy Chew Bully Stick 6″ Single
Made from bladder sticks, these softer, yet satisfying bully chews, are natural, healthy, and ideal for seniors and dogs with sensitive mouths.
Sold by www.onlynaturalpet.com
Bestsellers and Hot Products
Bundle of Wellness Soft Natural Grain-Free Treats for Training, No Artificial Flavors, Real Meat, Made in USA (Lamb & Salmon, 8 & 6 -Ounce Bags)$4.49 (as of June 3, 2023 03:29 GMT -06:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
neabot P1 Pro Pet Grooming Kit & Vacuum Suction 99% Pet Hair, Professional Grooming Clippers with 5 Proven Grooming Tools for Dogs Cats and Other Animals29% Off
Perperqer Dog Nail Clipper,Dog Nail Trimmers with Safety Guard for Small Medium Large Breed Dog & Cat to Avoid Over Cutting,Professional Grooming Tool with Quick Sensor and Dog Nail File23% Off
Amazon Basics Unscented Standard Dog Poop Bags with Dispenser and Leash Clip, 13 x 9 Inches, Black - 20 Rolls (300 Bags)$9.90 ($0.03 / Count) (as of June 3, 2023 02:52 GMT -06:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Benebone Wishbone Durable Dog Chew Toy for Aggressive Chewers, Made in USA, Small, Real Bacon Flavor12% Off
Pet Grooming– Maintaining A Posh Pup
Canine Grooming– Maintaining a Posh Pup Pet dog Grooming– It's Not Just for Poodles Anymore Preserving a routine grooming schedule will assist to keep your pet both healthy and delighted. Regular pet dog grooming will guarantee that your canine is complimentary of parasites, has healthy skin and a glossy coat, and has great oral health. […]
7 Best Calming Solutions for Dogs with Separation Anxiety
1. Kong Wobbler A lot of dog owners have reported positive results using a Kong Wobbler. The toy is designed to be filled with dog treats or kibble. The design makes it virtually impossible for your dog to get the treats out of the toy, which can help prevent separation anxiety. It takes a little […]
How Long Does It Take For Your Dog To Settle In Your New Home?
Relocating to a new house is a whole lot of work, especially when you are doing it all by yourself. This includes going through an adjustment period, where you will feel the need to adapt to the new environment and other factors. Just like humans, our furry friends also need to have some time to […]
10 Small Hypoallergenic Dog Breeds that don't Bark
Welcoming a pet into your home as a friend for a lifetime Is always a dreamy milestone to achieve. But if you are someone who starts to show allergic reactions as soon as you come in contact with the pet, then this dreamy situation can turn into a Nightmare. So, if you are facing this […]
laughed so much at 00:35 xD
1:20 sooo funny….
Funny and lovely