气候变化领域集成服务门户(CCPortal): Fire and land cover drive predator abundances in a pyric landscape

CCPortal

DOI	10.1016/j.foreco.2020.117939
	Fire and land cover drive predator abundances in a pyric landscape
	Jorge M.H.; Garrison E.P.; Conner L.M.; Cherry M.J.
发表日期	2020
ISSN	0378-1127
卷号	461
英文摘要	Understanding the link between environmental factors such as disturbance events, land cover, and soil productivity to spatial variation in animal abundance is fundamental to population ecology and wildlife management. The Longleaf pine (Pinus palustris) ecosystem is an archetypal fire-mediated ecosystem, which has seen drastic reductions in land area due to fire suppression. Current restoration utilizes prescribed fire and hardwood removal, but little is known regarding how these restoration efforts influence predator spatial distributions and predator-prey interactions. We conducted a study to investigate how fire, land cover, and soil productivity influence spatial distributions of predators in a fire-mediated ecosystem. We conducted a 34-camera survey across Camp Blanding Joint Training Center, a military installation in northern Florida, and utilized N-mixture models to estimate relative abundances of mammalian predators. To conceptualize our results relative to managed prey species, we categorized predators into white-tailed deer fawn predators [i.e. coyote (Canis latrans), bobcat (Felis rufus), and Florida black bear (Ursus americanus floridanus)] and nest predators [i.e. raccoon (Procyon lotor), Virginia opossum (Didelphis virginiana), and nine-banded armadillo (Dasypus novemcinctus)]. Coyote (P = <0.001) and bobcat (P = 0.01), increased relative abundance with decreasing pyrodiversity, the number of unique time since fire values. Raccoon relative abundance increased with distance from recent burns (P = 0.02). Coyote (P = <0.001) and bobcat (P = <0.001) relative abundance also increased with proximity to hardwoods, while raccoon relative abundance decreased with proximity to pine (P = 0.02). Interestingly, there was a lack of detections of mesopredators [i.e. red fox (Vulpes Vulpes), grey fox (Urocyon cinereoargenteus), spotted skunk (Mephitis mephitis) and striped skunk (Spilogale putorius)] that were historically considered common throughout the Southeastern United States and longleaf pine ecosystems. Our results indicate that predator space use was altered by fire conditions and distances to pine and hardwood stands, which supports a predator management strategy that utilizes management tools commonly used in restoration and conservation of the LLP ecosystem to indirectly alter predator distributions, which has the potential to positively affect the management of important species within this ecosystem. © 2020 Elsevier B.V.
关键词	Conservation Fires Forestry Hardwoods Mammals Mixtures Plants (botany)Productivity Restoration Spatial distribution Coyote Longleaf pine Mixture model Prescribed fires Pyrodiversity Raccoon Ecosystems abundance bear environmental disturbance environmental factor land cover pine population ecology predator-prey interaction relative abundance space use spatial variation species conservation Conservation Fires Forestry Hardwoods Mammals Mixtures Camp Blanding Florida [United States]United States Virginia Animalia Canis latrans Dasypus novemcinctus Didelphis virginiana Lynx rufus Mammalia Mephitis Mephitis mephitis Odocoileus virginianus Pinus palustris Procyon Procyon lotor Spilogale Spilogale putorius Urocyon cinereoargenteus Ursus americanus Vulpes Vulpes vulpes
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132959
推荐引用方式 GB/T 7714	Jorge M.H.,Garrison E.P.,Conner L.M.,et al. Fire and land cover drive predator abundances in a pyric landscape[J]. Forest Ecology and Management,2020,461.
APA	Jorge M.H.,Garrison E.P.,Conner L.M.,&Cherry M.J..(2020).Fire and land cover drive predator abundances in a pyric landscape.,461.
MLA	Jorge M.H.,et al."Fire and land cover drive predator abundances in a pyric landscape".461(2020).