California Fish and Wildlife Journal最新文献

{"title":"Post-fire species composition and abundance of a lentic-breeding amphibian assemblage: case study of Ledson Marsh","authors":"David G. Cook, M. Hayes","doi":"10.51492/cfwj.firesi.8","DOIUrl":"https://doi.org/10.51492/cfwj.firesi.8","url":null,"abstract":"Amphibians frequently inhabit wildfire-prone environments, but little is known how amphibians respond to fire. This study assessed the post-wildfire species composition and abundance of an amphibian assemblage in an 11.8-ha seasonal marsh. Pre-fire, four native amphibians occupied Ledson Marsh, including: California red-legged frog (Rana draytonii), Pacific treefrog (Pseudacris regilla), California newt (Taricha torosa), and roughskin newt (Taricha granulosa), in addition to the exotic American bullfrog (Rana [Lithobates] catesbeiana). Qualitative data revealed the California newt and Pacific treefrog were abundant species. In 2017, the Nuns Wildfire burned the majority of ground cover within the watershed. Nearly all marsh vegetation burned to charred and desiccated stubble. Renewal of substantial marsh vegetation occurred after one growing season, indicating a protected rootstock in a majority of perennial wetland plants. Post-fire, the same four native amphibians were still present. In addition, western toad (Anaxyrus boreas), a species previously undetected, also appeared. Appearance of western toad is consistent with its positive short-term response to fire, as described in other studies. The California newt and Pacific treefrog remained the two most abundant species post-fire. Over the short-term, the amphibian assemblage appeared resilient, or potentially benefitted, due to the temporary disturbance of wildfire within their lentic breeding habitat. The conclusion is based on the persistence of all pre-fire species, colonization by the western toad, and the return to an earlier successional stage, which may extend the longevity of the marsh. Since the rapid seasonal drying of habitat can increase the likelihood of fire under the current climate trajectory, we need a better understanding of the mechanisms that enable amphibians to cope with fire. This is particularly important over longer timelines and within wetland habitats that have the potential to burn.","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43028055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Survival of the rare Packera layneae (Asteraceae), under chaparral and after fire","authors":"D. Ayres, Virginia C. Meyer, melanie GoGol-prokurat, Lauren Fety","doi":"10.51492/cfwj.firesi.5","DOIUrl":"https://doi.org/10.51492/cfwj.firesi.5","url":null,"abstract":"Conservation of rare plants requires an understanding of how the species responds to natural and artificial disturbance dynamics. For chaparral species this includes the natural disturbances of fire and shrub canopy closure during the interfire period, and the effect of shrub clearing for fuel reduction. Packera layneae is a federally listed rare herbaceous perennial subject to all these disturbances; its center of distribution is upon the gabbro soils surrounding Pine Hill in western El Dorado County, CA an area known as a hotspot of botanical diversity. Combining genetic data with mapping following a 2007 wildfire in Shingle Springs, we found that the species survives fire and chaparral overgrowth due to underground rhizomes and caudices that resprout after fire and enable its persistence under dense chaparral canopies; as well, seed recruitment of new genetic individuals occurred within discrete patches. Seedlings were not found the spring following the 2007 fire, suggesting fire killed the soft-walled seeds. Surveys across the Pine Hill area from 2005-2007 found populations flowering and producing seed in recently burned and cleared areas as well as under mature chaparral; however, the proportion of plants flowering decreased as shrub density increased. From our 2019 surveys of a new 4.25 km fuel break around the perimeter of Pine Hill in Rescue, CA (0.983 km2) we found the species resprouted from plants growing under the dense chaparral canopy on the southern, eastern, and western aspects but did not occur on the northern exposure or under dense oak canopy. As the seedling regeneration niche is unknown, preservation of established populations is vital to the long-term persistence of the species.","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42632938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review of the potential impacts of artificial lights on fish and wildlife and how this may apply to cannabis cultivation","authors":"L. Rich, Erin C. Ferguson, Ange Darnell Baker, Erin Chappell","doi":"10.51492/cfwj.cannabissi.4","DOIUrl":"https://doi.org/10.51492/cfwj.cannabissi.4","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48186544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applied science to inform cannabis regulatory efforts, Humboldt County, California","authors":"E. Portugal, Jason Hwan","doi":"10.51492/cfwj.cannabissi.1","DOIUrl":"https://doi.org/10.51492/cfwj.cannabissi.1","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46846252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pesticides in California: their potential impacts on wildlife resources and their use in permitted cannabis cultivation","authors":"L. Rich, Stella McMillan, Ange Darnell Baker, Erin Chappell","doi":"10.51492/cfwj.cannabissi.2","DOIUrl":"https://doi.org/10.51492/cfwj.cannabissi.2","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43063339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential impacts of plastic from cannabis cultivation on fish and wildlife resources","authors":"L. Rich, Ange Darnell Baker, Erin Chappell","doi":"10.51492/cfwj.cannabissi.6","DOIUrl":"https://doi.org/10.51492/cfwj.cannabissi.6","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47868412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coexisting with cannabis: wildlife response to marijuana cultivation in the Klamath-Siskiyou Ecoregion","authors":"Phoebe Parker‐Shames, Wenjing Xu, L. Rich, J. Brashares","doi":"10.51492/cfwj.cannabissi.5","DOIUrl":"https://doi.org/10.51492/cfwj.cannabissi.5","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46705145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Locality records for Woodhouse's toad: have wet washes in a dry desert led to extralimital occurrences of an adaptable anuran?","authors":"V. Bleich","doi":"10.51492/cfwj.106.18","DOIUrl":"https://doi.org/10.51492/cfwj.106.18","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46138569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nearly all California Monarch overwintering groves require non-native trees","authors":"Travis Longcore, Catherine Rich, S. Weiss","doi":"10.51492/cfwj.106.16","DOIUrl":"https://doi.org/10.51492/cfwj.106.16","url":null,"abstract":"","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47908197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Striped Bass on the coast of California: a review","authors":"D. Boughton","doi":"10.51492/cfwj.106.17","DOIUrl":"https://doi.org/10.51492/cfwj.106.17","url":null,"abstract":"Striped Bass (Morone saxatilis), a non-native, anadromous fish introduced to California in 1879, is a popular sport fish and piscivorous predator in the San Francisco Bay/Delta ecosystem, but comparatively little is known about its distribution and ecology in estuaries and rivers of the California coast. Here we review recent scientific papers, consultant reports, and correspondence to evaluate its distribution in coastal estuaries and rivers, evidence for local reproduction, and scope for impacts on native fishes, especially salmonids. Striped Bass is extremely rare in the ocean along the north coast, and has not turned up in extensive surveys of Humboldt Bay, the Eel River estuary, or the Russian River estuary. It is, however, a perennial feature of seining surveys in estuaries south of the Golden Gate and along Monterey Bay, usually sporadically and as a very small proportion of total catch. It has become quite common in the Carmel River estuary, and is occasionally caught in the ocean further south. Small upstream migrations, possibly for spawning, have been observed in the Salinas River and Carmel River, but no evidence of eggs or larvae has been found—perhaps due to a lack of ichthyplankton surveys anywhere except in Elkhorn Slough. However, the species’ reproductive ecology is not a good match to the hydrologic structure of most coastal stream systems, requiring a large long river where adults can spawn, in combination with an extensive, ramifying estuarine system where larvae can accumulate. One potential good match is the Salinas River system, especially in its historic form as the Salinas River/Old Salinas River Channel/Elkhorn Slough complex of the 19th century. Despite the modest presence of the species on the coast between the Golden Gate and Carmel, it still has scope for large impacts on emigrating salmonids, due to its extreme piscivory at larger size-classes and its ability to exploit migration bottlenecks as feeding grounds. Most likely the individuals observed in coastal estuaries originated in the San Francisco Bay/Delta system and use local systems opportunistically for foraging, but the hypothesis of local reproduction cannot be ruled out without further study.","PeriodicalId":29697,"journal":{"name":"California Fish and Wildlife Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41832327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}