THE NARWHAL
Federal funds will kickstart work on an ecological corridor along the Little Saskatchewan River, aimed at protecting wildlife habitat and keeping the watershed healthy. Story here.
THE NARWHAL
Federal funds will kickstart work on an ecological corridor along the Little Saskatchewan River, aimed at protecting wildlife habitat and keeping the watershed healthy. Story here.
Kitasoo Xai’xais Nation (KXN)
the Raincoast Conservation Foundation,
and the University of Victoria.
Mountain Goat - Oreamnos americanus |
Photos by Connor Stefanison |
The first signs happened decades ago. KXN community members began to report a decline in sightings of goats once frequently seen from river valleys and the ocean. These patterns were alarming, given the immense cultural value of goats to the Kitasoo Xai’xais people.
“Historically, access to goats influenced the location of village sites and camps. Alarmingly, we don't see goats in these locations anymore, a dramatic decline from several decades ago” Douglas Neasloss, Chief Councillor of the KXN.
Motivated by these early alarm bells from the community, the KXN compiled multiple independent, but complementary, data sources. First, they conducted comprehensive interviews with knowledge holders who collectively had centuries of knowledge and experience in goat country in Kitasoo Xai’xais territory. Participants were asked how frequently they saw mountain goats from 1980 to the present day. The result was a striking decline in the number of goats observed over this time. In 2019, when the interviews were conducted, no one had even seen a goat that year.
Secondly, the KXN led helicopter surveys across more than 500 km2 of KXN territory in the summers of 2019 and 2020 to better understand contemporary mountain goat density. Building upon their own wildlife research program, the KXN collaborated with a team of wildlife scientists, led by Tyler Jessen, PhD student at UVic and scholar with the Raincoast Conservation Foundation, to analyze the data. Results show that KX goats occur in low density, especially when compared to interior populations, such as those that inhabit the Rocky Mountains.
Finally, wanting broader context and yet another independent source of information, the research team also examined hunting records that stretched across BC and back to 1980. They found that the success of BC hunters (unaccompanied by professional guides) has declined over the past four decades. All else being equal, if a hunter has to spend more days looking for a goat to kill than they did in the past, then there may be less goats than there were before. This pattern occurs well beyond KXN territory.
Collectively, these information sources all pointed to the same reality: that mountain goats are of conservation concern in KXN territory; either the abundance or distribution of goats has changed – possibly both. There are either less of these creatures, or they spend more time at high altitudes where they cannot be seen or hunted easily. If they are at higher elevations, this means that something is driving them upwards, such as warming alpine temperatures, which can cause heat stress. Additionally, mountain goat food quality and quality are often reduced at higher elevations. Combined, both of these factors can ultimately lead to population decline.
Either way the Kitasoo Xai’xais, having first detected these patterns, are not going to let these goats slip away. Their thick white coats are adapted to the chilly mountaintops, but as alpine temperatures rise, goats might have less habitat left to escape the heat. Against this climate change background and towards a precautionary approach to reflect the uncertainty around population abundance, the KXN will look to adopting management measures to safeguard these precious and culturally important animals from other harms. Specifically, the KXN are exploring tightening up restrictions within their territory including high-elevation logging, air traffic access, and hunting. Indeed, KXN members voluntarily stopped goat hunting decades ago in response to reduced sightings.
Shedding light on an elusive mountain animal would not have been possible without early insight from KXN. As Jessen explains, “A broader takeaway from this study is that Indigenous peoples commonly detect changes that go undetected by western scientists and managers.”
This study highlights a growing resurgence of Indigenous research and management and shows how pairing Local Ecological Knowledge with scientific information can enhance our collective understanding of ecosystems.
Science Magazine
Alaska's Arctic National Wildlife Refuge - Canning River/ by Jan Reurink. View map here. |
Mapping plan for Arctic refuge ignores risks, critics say. Story here.
Journal: Nature Sustainability
A Colombian farmer working on his "finca". These patches of forest are given away at a low price by the government to farmers who then clear them up to grow crops. Photo by LAIF. |
Almost 90% of terrestrial vertebrate species around the world might lose some of their habitat by 2050 as land is cleared to meet the future demand for food. However, according to a modelling study published in Nature Sustainability, proactive policies focusing on how, where and what food is produced could reduce these threats while also supporting human well-being.
Habitat loss driven by agricultural expansion is a major threat to terrestrial vertebrates. Projections based on human population growth and dietary needs estimate that we will need 2–10 million km2 of new agricultural land to be cleared at the expense of natural habitats.
Conventional conservation approaches — which often focus on a small number of species and/or a specific landscape — may be insufficient to fight these trends. Adequately responding to the impending biodiversity crisis requires location- and species-specific assessments of many thousands of species to identify the species and landscapes most at risk.
David Williams, Michael Clark and colleagues developed a model that increases both the breadth and specificity of current conservation analyses. The authors examined the impacts of likely agricultural expansion on almost 20,000 species.
Moose in Manitoba, Canada are being described as "imperilled." The Canadian Parks & Wilderness Society (CPAWS) says they need "large, protected areas with healthy forests & wetlands." Photo Credit - CPAWS. |
However, the authors also show that proactive policies, such as increasing agricultural yields, transitioning to healthier diets and reducing food waste, may have considerable benefits, with different approaches having bigger impacts in different regions.
Using tools which included video taken by a robot submarine, a Canadian research team recently discovered an amazing array of plants and animals, living in the heart of Milne, the very ice shelf which broke apart just this summer north of Ellesmere Island (above), losing almost half of its mass. Dr. Derek Mueller, Professor of Geography and Environment Science at Ottawa's Carleton University, is a team member who's worked in the area for decades. In an email to PinP, he can barely disguise his excitement over what they found. "There are really neat microbial mats (communities of micro-organisms including cyanobacteria, green algae, diatoms, heterotrophic bacteria, and viruses) that live on the surface of the ice shelves. Similar microbial mats can be found in ponds on the bottom of shallow lakes... Inside the sea ice and clinging to its underside are communities of algae and lots of kinds of phytoplankton in the ocean as well." Small animals from marine waters under the sea ice in Tuvaijuittuq, a Marine Protected Area in the region. Photo credit: P. Coupel and P. Tremblay, Fisheries and Oceans Canada. So what might the world lose if these organisms disappear with the ice? "This Last Ice Area will hopefully serve as a refuge for ice-dependent species," Dr. Mueller explains, "both on land and in the marine environment. We know relatively little about these organisms - how they are adapted to their surroundings, how unique they are (or perhaps how similar they are to their cousins in analogous environments in the Antarctic) and many more questions! We won't get to ask these questions if global temperatures rise unabated and this ice melts away." The images above come from just a tiny part of the vastness Mueller refers to, called the "Last Ice Area." And, in the face of a rapidly-warming Arctic, events involving the break-up of sea ice are all too common there. What's left of the Ward Hunt Ice Shelf in the Last Ice Area after breaking apart in 2011. Credit: CEN, Laval University. |
Here's how Dr. Mueller describes the LIA. "'The Last Ice Area' means the region in the Arctic Ocean where sea ice is most likely to survive in a warming world." It sprawls for up to 25 hundred kilometres along the coastlines of northern Canada and Greenland and well out to sea. It's there that the thickest sea-ice in the entire Arctic can be found. Because of its importance as a home for ice-dependant marine life and its cultural significance to the Inuit people living there, they and the World Wildlife Fund have long promoted it as worthy of conservation. (Local Inuit elders call it “Similijuaq - place of the big ice.”) |
A Bengal, the commonest tiger species (but still endangered) paces in its cage at Winnipeg's Assiniboine Park zoo. A PinP photo.
A study just published in the journal, Facets, begins positively enough. It acknowledges that members of Canada's Accredited Zoos and Aquariums (CAZA - the private, non-profit charity representing thirty such institutions), do try to be leaders in researching this field and, that they do take part in programs aimed at species survival by breeding animals in captivity, then re-introducing them into the wild.
And on its own website, CAZA claims, "We are behind some of the most remarkable conservation success stories. This includes, bringing species such as the Black Footed Ferret and the Vancouver Island Marmot back from the brink of extinction,” for example.
However, in some key areas, the researchers (a team of two biologists from Laurentian University in Sudbury) suggest, CAZA and its members are falling short.
Zoos and aquariums could be "important resources in mitigating biodiversity loss. And the credibility of zoos as conservation organizations can only be enhanced by the production of peer-reviewed science in this field."
Yet, while CAZA members are turning out more such research (still significantly less than their US counterparts and most in "zoo-centric" journals), most are not on the topic of biodiversity conservation at all, but on veterinary science, instead.
"Few studies have explored their contribution to biodiversity conservation efforts and research productivity in general."
Increasing collaboration with academic institutions would be one way for CAZA to overcome that shortcoming. So, “It is puzzling that collaborations between these groups are rare. Academics can use the unique environment zoos and aquariums provide for studying species, whereas academic research based on field observations may increase the success of reintroduction efforts led by zoos and aquariums.”
This new research comes to light against the backdrop of extinctions hanging over tens of thousands of Earth's wild species, “ due to widespread degradation of global ecosystems caused by humans.”
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"Harvesting" by Beegee49 |
In this satellite photo, "halos" appear as pale blue circular bands surrounding tiny dark spots.The spots are likely small patch reefs or other shelter for small fish and invertebrates that protect them from predators. Each halo is probably about 10 meters wide. The more there are, the healthier marine life there is likely to be. |
Elizabeth M.P. Madin, Ph.D.
Assistant Research Professor
Hawaii Institute of Marin Biology
University of Hawaii at Manoa, USA.
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The spokesperson for the study, Dr. Elizabeth Madin (above), tells PinP, "What the halos are telling us is that marine reserves - especially older ones - where predator and herbivore populations have had sufficient time to recover from previous fishing - are protecting key species and their resulting interactions. |
Dugongs, a type of marine mammal, are
known to be capable of decimating sea-grass beds as they graze. Photo taken in an oceanarium in Jakarta.
This spares massive sea-scapes of algae and sea-grasses nearby, which would otherwise be stripped by the plant-eaters. Instead, the vegetation grows taller and denser, greatly increasing its capacity to store carbon, thus providing a significant buffer against climate change.
Not only are the number of marine reserves growing, worldwide, they're getting bigger, too (some more than 100 thousand km2). Nineteen of these "mega-reserves" have been established since 2009. And happily for the sea-life living there, the research finds, the bigger the reserves, the more protection they offer! |
The Tetlin National Wildlife Refuge, Alaska. Photo by Diego Delso.
In a ruling issued from Alaska, a U.S. District Court
has determined that President Trump overstepped his constitutional authority
and violated federal law. More here.
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A proposed new road could disrupt the migration of animals like this in the Serengeti. Photo by eismcsquare. |
The world's largest protected area is now four times the size of California. pic.twitter.com/lvtsbzXXJF— AJ+ (@ajplus) September 1, 2016
International Institute for Sustainable Development The International Court of Justice will issue an advisory opinion on the obligations of...