Mastodawn

Daniel Stewart Feb 1, 2023

Here is a full access link. https://link.springer.com/epdf/10.1007/s12237-023-01171-4?sharing_token=n1dIE9HAu74qD7KYxywuJfe4RwlQNchNByi7wbcMAY6Ad8KDIX08joxBuhaEEMsiUP0l6qnUhQMo1hVRTYLMuCaTz4fbgIv5qWfYLTZBtk1-8rQac3DBsJQl87a3dG5oT00jinbk341Gw9U7Ia_3jQEeXP_geAi1Tkg49e-I2Bs%3D

Undetected but Widespread: the Cryptic Invasion of Non-Native Cattail (Typha) in a Pacific Northwest Estuary

Daniel Stewart Feb 1, 2023

📢 New paper alert! 📢

Non-native #Typha angustifolia has been detected in the Fraser Estuary in recent decades, but questions around their degree of establishment, and the potential emergence of hybrid cattail (Typha × glauca), remain unanswered. This study models the current and potential future distribution of non-native #cattail in the FRE using a combination of imagery analysis and species distribution modeling, and confirms T. × glauca is present and abundant.

https://link.springer.com/article/10.1007/s12237-023-01171-4

Undetected but Widespread: the Cryptic Invasion of Non-Native Cattail (Typha) in a Pacific Northwest Estuary

Daniel Stewart Dec 30, 2022

Justin Luong, PhD Dec 30, 2022

My 10th paper is now online right in time for the new year! Have you ever wondered how trail disturbance affects native and non-native grasses and it's implications for management? Read more:

https://link.springer.com/article/10.1007/s11258-022-01284-z

Native and invasive bunchgrasses have different responses to trail disturbance on California coastal prairies - Plant Ecology

Ecosystems often experience small-scale disturbances through recreational foot and bike traffic. The intermediate disturbance hypothesis predicts that frequent disturbances in grasslands can negatively impact native species and lead to invasion by disturbance-adapted, non-native species. Disturbance studies often examine intentional or unintended larger scale disturbances, but do not commonly focus on common small-scale disturbances such as those caused by trampling along trails. As such, we were interested in how trail disturbance affects the vegetative growth and reproductive output of in situ native (Danthonia californica Bol. and Stipa pulchra Hitchc.) and invasive (Dactylis glomerata L. and Holcus lanatus L.) perennial bunchgrasses commonly found on California coastal prairies. We measured the basal circumference and seed production of plants located on-trail and off-trail on five coastal prairies in Santa Cruz, CA, USA. We hypothesized that native grasses located on-trail would have lower growth and reproductive output and non-native grasses would be unaffected. We found that native and non-native plants had differences in growth and reproductive output on-trail and off-trail. S. pulchra had lower reproductive potential (via culm sterility) with trail disturbance, whereas both native grasses showed evidence of compensatory growth on-trail. Invasive non-native D. glomerata and H. lanatus growth was unaffected by trail disturbance, but H. lanatus had lower reproductive output on-trail. Results suggest that it may be prudent to restore trails with disturbance tolerant species like D. californica and use less tolerant species like S. pulchra further into the central habitat space.

SpringerLink

Daniel Stewart Dec 16, 2022

Saddened to see that #Twitter is now flagging Mastadon profile links as unsafe.

Daniel Stewart Dec 12, 2022

Joshua Drew Dec 12, 2022

Folks, I'm an editor at #Conservation Biology and we are actively soliciting research papers that focus on "Diversifying Conservation" We want to create a special issue highlighting research from diverse voices, research that highlights #diversity (broadly defined) in conservation, and submissions that may be centered in non-western epistemologies. Abstracts due mid Feb, with research papers at the end of March. Hit me up for more details

Daniel Stewart Dec 2, 2022

Excited to announce I'll be presenting on #cattail invasions at the upcoming ISCBC Annual Forum & AGM! I recall presenting my proposed research in 2019, and it is shocking to think of how much we have learned about #cattail after four years.

For anyone not familiar, I'd highly recommend attending the event if you have any interest in invasives. These meetings are wonderful for networking, and for being exposed to new information on invasives in BC.

https://pheedloop.com/EVEWOEVWDZZKA/site/

2023 ISCBC Annual Forum & AGM Virtual Portal

Join us in person for the 2023 Invasives Annual Forum! Throughout the COVID-19 pandemic many of us reconnected with nature, now let’s reconnect with one another. The ISCBC 2023 Forum will serve invasive species practitioners over two and a half days of informative, dynamic sessions held in person in New Westminster, BC. Experts will share the latest best practices, leading-edge invasive species research, and local government initiatives. The goal is to empower participants with practical, cutting-edge information, to inspire them with powerful examples of collaboration, and to leave them with optimism, reminding them of the great difference their work is making in protecting BC’s rich and biodiverse landscapes and waterways.

Daniel Stewart Nov 18, 2022

Enjoyed a beautiful and frosty dawn at Alaksen National Wildlife Area in the Fraser Estuary. Some astounding tidal marshes are in this protected area, but also one of the largest #Typha infestations in the estuary. Today marked the end of our second year of experimental treatments.

#fraserriver #estuary #invasivespecies

Daniel Stewart Nov 15, 2022

Olivier Gimenez Nov 14, 2022

RT @[email protected]

Hi folks, please RT! We’re looking for a postdoc to lead a project studying mechanism(s) of pop change in western Arctic and Wrangel Isl snow geese. Results will help prioritize future monitoring schemes: https://ornithologyexchange.org/jobs/board/postdoctoral-positions/postdoctoral-fellowship-demography-of-pacific-flyway-snow-geese-r18921/

📸 N. Riggio

🐦🔗: https://twitter.com/MitchWeegman/status/1592173902146736129

Postdoctoral fellowship: Demography of Pacific Flyway snow geese

The Department of Biology at the University of Saskatchewan is seeking a 2-year postdoctoral fellow to lead a project using all available demographic and population survey information for Wrangel Island and Western Arctic snow geese to estimate demographic rates and abundances in an integrated po...

Ornithology Exchange

Daniel Stewart Nov 12, 2022

Shyam PHARTYAL Nov 10, 2022

Assembly of plant communities has long been scrutinized through the lens of trait-based ecology & often analyze functional traits related to vegetative growth, survival & resource acquisition & thus ignores how assembly rules may affect plants at other stages of their life cycle.

The study demonstrates that, in addition to vegetative traits, seed traits can substantially contribute to the functional structuring of plant communities along environmental gradients.

https://doi.org/10.1111/1365-2745.13955

ResearchGate	https://www.researchgate.net/profile/Daniel-Stewart-17
Google Scholar	https://scholar.google.com/citations?user=0Nflv38AAAAJ&hl=en