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Adapting to Water Temperature Changes: The Smart “Coat” of Yangtze Finless Porpoise

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Newswise — In a study using B-mode ultrasound imaging, a team of researchers in China monitored the blubber thickness in Yangtze finless porpoises (YFPs) over different seasons. They made a fascinating discovery – the thickness of the blubber changes with the water temperature.

“When the water gets colder, their blubber layer becomes thicker, acting like a warm, cozy down jacket,” shares Bin Tang, first author of the study. “And when the water warms up, their blubber gets thinner, helping them stay cool and comfortable.”

Interestingly, the blubber thickness of cetaceans exhibits varying patterns across different body regions in response to water temperature changes. Specifically, in the dorsal region, blubber thickness decreases linearly as the water temperature increases. However, in the lateral and ventral regions, significant changes in blubber thickness occur only when the water temperature reaches approximately 18 oC.

The researchers, who published their findings in the KeAi journal Water Biology and Security, also investigated the interconnection between energy intake, blubber thickness, and water temperature.

“It appears that water temperature might influence changes in blubber thickness by affecting the appetite of these marine mammals,” adds Tang.
Nonetheless, the relationship between energy intake, blubber thickness, and how it is influenced by water temperature is a complex subject that merits deeper investigation to uncover the underlying mechanisms.

Credit: Water Biology and Security
Figure 1
« Adapting to Water Temperature Changes: The Smart “Coat” of Yangtze Finless Porpoise

“By delving deeper into these aspects, we can gain valuable insights into the adaptive strategies of cetaceans and the mechanisms they employ to thrive in various aquatic environments, concludes corresponding author Yujiang Hao. “Such knowledge could have broader implications for understanding marine ecosystems and potentially even aid in conservation efforts for these remarkable marine mammals.”

Source: Chinese Academy of Sciences

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Nature

Unveiling the Truth About Joro Spiders

Learn from the expert: Joro spiders are harmless. Understand their role in the ecosystem and dispel myths.

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Joro Spider
A Joro spider. « Joro spiders are nothing to worry about, explains expert Credit: Image courtesy Pexels.

The recent buzz surrounding the Joro spider on social media has caused a stir, with exaggerated stories painting them as a potential threat. However, according to expert entomologist Theresa Dellinger from Virginia Tech, there is no cause for alarm when it comes to these arachnids. Here are some key points that shed light on the reality of Joro spiders:

  1. Origin and Spread: Joro spiders are native to east Asia and likely made their way to the U.S. through imported materials. While they have been sighted in several states, including Georgia, Tennessee, North Carolina, and South Carolina, they have not been reported in Virginia yet.
  2. Similarity to Other Spider Species: Joro spiders belong to the orb weaver family, much like other spider species found in the U.S. such as garden orb weavers and golden silk orbs. While they may look intimidating due to their size, they are not aggressive towards humans.
  3. Behavior and Concerns: Joro spiders are not known to pose any medical concerns, unless someone is specifically allergic to spider bites. They are shy creatures that feed on insects and play a role in controlling pest populations.
  4. Environmental Impact: As a non-native species, Joro spiders may impact the ecosystem by competing with native spider species. However, the long-term effects are still being studied.
  5. Precautions: Contrary to sensationalized claims, Joro spiders do not invade homes and do not require yard treatments. If they become a nuisance, they can be easily removed using a broom or insecticide spray.

Theresa Dellinger, an expert in entomology, provides valuable insights into the behavior and impact of Joro spiders, debunking myths and offering practical advice for coexisting with these creatures. As with any wildlife encounter, understanding the facts can help dispel unnecessary fear and promote a harmonious relationship with nature.

For more information, check out the Virginia Tech article.

To find additional details, take a look at the article from Virginia Tech.

https://www.newswise.com/articles/joro-spiders-are-nothing-to-worry-about-explains-expert

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McCain Foods Delivers on Promise by Planting 18,000 Trees in Wisconsin

McCain Foods fulfills promise, planting 18,000 trees in Wisconsin, beautifying Plover and promoting sustainability. A true commitment to the environment and community. #McCainFoods #Sustainability

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In a heartwarming display of commitment to the environment and the Plover community, McCain Foods has fulfilled its promise by planting 18,000 trees throughout Wisconsin. This inspiring initiative was part of the company’s pledge to replace and increase the number of trees cut down for the expansion of their appetizer processing plant in Plover.

A group of volunteers planting trees in a park, representing McCain Foods' commitment to sustainability and community.
McCain Foods and the Wisconsin Department of Natural Resources planted 18,000 new trees in Plover and surrounding communities last week. (prnewswire)

Ribbon-Cutting Ceremony:
Celebrating this remarkable achievement, McCain hosted a special ribbon-cutting ceremony in Plover last Friday. Howard Snape, the president of McCain Foods North America, expressed his pride in the company’s contribution. “With this initiative, McCain has added three times the number of trees we had to clear in Plover, beautifying the community while increasing its sustainability,” Snape shared. This event not only marked a milestone for McCain but also highlighted their dedication to fostering thriving communities.

Tree Planting Locations:
The 18,000 newly planted trees can be found in various locations, including the Douglas County Forest and throughout the Plover community. This carefully planned distribution ensures that the positive impact of the initiative is widespread. Local elementary schools, homes of growers, and the residences of McCain employees have all benefited from this sustainability effort. By incorporating trees into these areas, McCain aims to enhance the overall beauty and vitality of the community.

Commitment to Rural Areas:
With a network of 3,500 farmer partners worldwide, McCain has a significant presence in rural areas, often serving as the largest employer within those communities. The company values its role in creating sustainable livelihoods and fostering community development through donations, volunteering, and similar initiatives. The tree planting project is yet another testament to McCain’s dedication to these principles.

Sustainable Mission:
Sustainability lies at the core of McCain’s mission, as the company strives to celebrate real connections through delicious, planet-friendly foods. In line with global efforts to combat climate change, McCain has committed to reducing its emissions by 50% by 2030. This ambitious goal aligns with the international push to limit the rise in global temperatures to 1.5°C.

A Greener and More Sustainable Community:
McCain Foods’ tree planting initiative showcases the company’s dedication to the environment and the communities it serves. By fulfilling their promise and planting 18,000 trees, McCain has not only beautified Plover but has also helped create a greener and more sustainable community. This initiative reflects their ethos of promoting environmental stewardship, community engagement, and long-term sustainability.


McCain Foods’ commitment to replanting and increasing the number of trees cut down for their expansion project in Plover is truly commendable. By planting 18,000 trees throughout Wisconsin, they have not only fulfilled their promise but have also made a significant positive impact on the environment and the Plover community. McCain has once again demonstrated their dedication to sustainability, showcasing their determination to make a difference for future generations.

About McCain Foods USA
McCain Foods USA is a leading supplier of frozen potato and snack food products for the foodservice markets, retail grocery chains and private label brands in restaurants and supermarket freezers across the country. McCain Foods USA Inc., headquartered in Oakbrook Terrace, Illinois, employs 4,000 people and operates production facilities in Idaho, Maine, Nebraska, Washington and Wisconsin. https://www.mccainusafoodservice.com/

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The Resurgence of Tulare Lake: A Story of Resilience and Restoration

Rediscovery of Tulare Lake: A triumph of nature and indigenous resilience

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"Image: Aerial view of Tulare Lake, surrounded by greenery and mountains in the distance."
Tulare Lake. (2024, March 31). https://en.wikipedia.org/wiki/Tulare_Lake

In the heart of California’s San Joaquin Valley lies a tale of nature’s resilience and the enduring spirit of indigenous communities. Tulare Lake, once the largest body of freshwater west of the Mississippi River, vanished from the landscape over a century ago, leaving behind a legacy of environmental and cultural upheaval. But now, in a stunning turn of events, the ancient lake has returned, bringing with it hope, healing, and a renewed sense of connection to the land.

For the Tachi Yokut Tribe, Tulare Lake, known as Pa’ashi, holds deep historical and cultural significance. It was not just a body of water but a lifeline, sustaining both people and wildlife for generations. However, the lake’s disappearance in 1898 marked the beginning of a dark chapter in the region’s history. Indigenous communities were persecuted and displaced, and the land was transformed for farming through draining and irrigation—a testament to the era’s deeply entrenched settler colonialism.

Despite periodic reappearances in the decades that followed, Tulare Lake remained largely absent from the landscape until the barrage of atmospheric rivers that flooded California in 2023. Against all odds, the lake returned, defying expectations and rekindling a sense of wonder among those who witnessed its resurgence. Now, once again stretching across the valley, Tulare Lake serves as a beacon of hope and a symbol of nature’s resilience.

The return of Tulare Lake has brought about a cascade of positive effects, both ecological and cultural. Native species have reclaimed their habitats, and migratory birds once again grace the skies above the Pacific Flyway. For the Tachi Yokut Tribe, the lake’s resurgence represents a return to ancestral lands and traditions. Ceremonies are once again held along its shores, and native plants are being reintroduced, signaling a renewed connection to the land and its natural rhythms.

However, the rejuvenation of Tulare Lake is not without its challenges. The floods have caused significant damage to crops, homes, and infrastructure, posing a dilemma for policymakers and residents alike. Yet, amidst the destruction, there is a growing consensus that Tulare Lake should be allowed to remain. Recognizing its importance as a vital component of the region’s ecosystem, there is a call for a paradigm shift in how we view and interact with the land.

Letting Tulare Lake remain could not only heal the Central Valley’s relationship with water but also serve as a model for ecological restoration and coexistence. As efforts to drain the lake continue, it is imperative that we consider the long-term implications and embrace a more holistic approach to land management—one that prioritizes sustainability, resilience, and respect for indigenous knowledge and stewardship.

In the words of Kenny Barrios, a cultural liaison for the Tachi Yokut Tribe, “The lake is just like us.” Resilient, enduring, and deeply connected to the land, Tulare Lake stands as a testament to the power of nature and the human spirit. As we embark on this journey of restoration and reconciliation, let us draw inspiration from the ancient waters that have returned to reclaim their rightful place in the landscape.

Tulare Lake, also known as Tache Lake in Yokuts language, is a freshwater lake located in the southern San Joaquin Valley, California, United States. It was historically the largest freshwater lake to the west of the Mississippi River. For thousands of years, from the Paleolithic era, Tulare Lake was a uniquely rich area that supported perhaps the largest population of Native Americans north of present-day Mexico.

In the latter half of the 19th century, Tulare Lake was drained by diverting its tributary rivers to support agricultural irrigation and municipal water usage. In contemporary times, it is typically a dry lakebed that features residual wetlands and marshes. The lake only reappears after episodes of unusually high rainfall or snowmelt, as it did in 1942, 1969, 1983, 1997, 1998, and 2023. (Wikipedia)

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