Extinction – TINA CHIARELLI, PHD, FRGS

A Year in Review: Let 2017 be the Year of Action

December 14th, 2016tinalc0 Comments

As 2016 draws to a close, it’s important to reflect upon the last 365 days. Just like the preceding years, 2016 had triumphs and failures in wildlife and habitat protection. Although we still have a lot of battles before us in the field of conservation, I feel that 2016 was the year of awareness. Global issues were brought to the forefront to be openly discussed. I have to hope that is a great start for things to come in 2017. With each passing year, I am often asked how one person can make a difference. I completely understand how easy …

Coral: Diversity in Danger

March 25th, 2016tinalc0 Comments

Occupying less than one percent of the Earth’s surface and less than two percent of the ocean floor, it would be easy to overlook the significance of coral. In fact, 25% of all marine species depend on coral reefs for survival. In addition, for humans, coral provides shoreline protection, medicine, food, and an incentive for ecotourism to the sum of ~$50 million annually. Coral belong to the phylum Cnideria; closely related to sea anemones and jellyfish. Although they begin their lives as mobile medusa, they spend their adulthood as sessile polyps. Coral secrete calcium carbonate to form a hard exoskeleton …

The State of Africa’s Big Cats: a 30-year Conservation Report Card

January 21st, 2015tinalc0 Comments

Despite staunch conservation efforts, global big cat populations continue to decline. In just the last 30 years, data collected by conservation groups in Africa show that some big cat populations fell by at least 50% (table 1). Loss of habitat, human-wildlife conflicts, hunting, and poaching continue to threaten the long –term survival of these iconic creatures. Population 1985 2015 Cheetah (Africa and Iran) ~21,000 <10,000 (CCF) Lion (African and Asia) 100,000 ~23,000 Africa; <400 Asia (IUCN) Tiger (6 subspecies) 5,000-7,000 <3,500 (Global Tiger Initiative) Leopard (9 subspecies) no reliable data 100,000 Africa; 8,000 India (Nat Geo) …

Make 2015 the Year of Conservation Achievements

January 5th, 2015tinalc0 Comments

As 2014 came to a close, I felt inundated with reports of record numbers of animals killed to fuel the illegal wildlife trade. In 2014, almost 1,200 rhino were killed for their horns. Numbers of elephants slaughtered for ivory were in the tens of thousands. It appears that life in the sea is just as dangerous on land as over 100 million sharks were killed for their fins. Gorillas, tigers, okapis, hippos, lions, and cheetah are not only losing their lives, but also their homes. Sadly, they are not the only ones. This cannot continue. As we begin 2015, …

Human-Wildlife Conflict Redefined

December 7th, 2012tinalc0 Comments

Five years ago, if you heard the words “human-wildlife conflict” (or HWC) the first thing that probably came to mind was the challenges agriculturalists in range countries face coexisting with native fauna. Maybe you thought about the struggle between Namibian goat herders and cheetahs or East African farmers protecting their crops from raiding elephants. In short, humans had what animals wanted. No doubt those types of incidences still exist, but the overall dynamic of human-wildlife conflicts have changed, and therefore need redefined. Perhaps the first thing we should change is our way of thinking; how we view conflict between man …

Wildlife Trafficking: Be Part of the Solution, Not the Problem

November 13th, 2012tinalc0 Comments

With the holidays right around the corner many people have started their yearly quest for one of a kind gifts. It is very easy amidst the hustle and bustle to purchase items based on beauty alone. Please be wildlife aware when buying and receiving gifts. The cost may only be a few dollars out of your pocket, but for an animal it just may have cost his life. It has been well known for quite some time that the illegal trafficking of wildlife and their parts is a multi-billion dollar a year business. Falling behind only drugs and weapons, wildlife …

Vultures: Ecosystem Guardians

August 31st, 2012tinalc0 Comments

1 September marks International Vulture Awareness Day. Although sometimes regarded as ugly and gross, vultures play a most important role in keeping ecosystems healthy. They serve both a biological and cultural significance. Unfortunately, several species are under threat of extinction due to humans. And please believe me when I say, this is not a species that we can live without. Collectively, there are 23 species of vultures that are classified into two groups: Old World Vultures and New World Vultures. Although all species are similar, these two groups actually belong to different families. There are 16 species of Old World …

Animal Extinctions: What Can We Learn From Past Mistakes

April 30th, 2012tinalc0 Comments

Across the globe animal species are going extinct. From such contributing factors such as disease, persecution, poaching, displacement, and habitat destruction, we are losing some of our most amazing creatures at an alarming rate. Unfortunately, species extinctions are nothing new. But can we learn from past mistakes to ensure more magnificent animals do not do the way of the dodo? One of the most iconic species to have become extinct in the 20th Century was the thylacine or Tasmanian tiger. The last known thylacine was observed in captivity at the Hobart Zoo in 1936. Although the thylacine was a large …

The Year of the Dragon

February 20th, 2012tinalc0 Comments

The dragon is both revered and feared in many cultures around the world. This year the Chinese will celebrate the upcoming new year as the Year of the Dragon. A symbol of strength and royalty, you can find interpretations of these mythical beasts adorning clothing, wall tapestries, statues, and even etched into flesh. But what do we know about our last remaining dragon, the Komodo dragon, which still walks the earth? What is being done to conserve this magnificent creature and its habitat to ensure that it too remains immortalized? Weighing in at up to 100 kg (220 lbs) and …

Devil Facial Tumor Disease

January 27th, 2012tinalc0 Comments

In honor of Australia Day I thought it would be fitting to write about one of their most beloved species, the Tasmanian devil. Immortalized as the spinning, incoherent cartoon character, the survival of the real Tasmanian devil is in peril. A communicative disease called Devil Facial Tumor Disease (DFTD) is decimating the devil population of Tasmania. As researchers race to understand the etiology behind DFTD the devils face an uncertain future. Devil Facial Tumor Disease was first documented in 1996 in northeastern Tasmanian. The disease is characterized by large, fast-growing cancerous tumors that are found around the face and inside …