Deer Vigilance and Movement Behavior Are Affected by Edge Density and Connectivity DOI Creative Commons
Savannah L. Bartel,

Leotie Hakkila,

John L. Orrock

et al.

Ethology, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

ABSTRACT Animal behavior is an important component of individual, population, and community responses to anthropogenic habitat alteration. For example, antipredator (e.g., vigilance) animal movement may both be behavioral the increased density edges changes in patch connectivity that characterize highly modified habitats. Importantly, edge might interact, this interaction likely mediate behavior: linear, edge‐rich landscape features often provide structural between patches, but functional connectedness patches for use could depend upon how modifies vigilance movement. Using remote cameras large‐scale experimental landscapes manipulate (high‐ vs. low‐density edges) (isolated or connected patches), we examined effects on white‐tailed deer ( Odocoileus virginianus ). Deer was 1.38 times greater near high‐density compared edges, regardless whether were isolated. also more move parallel than all other types, suggesting promotes along edges. These results suggest increases accompany human fragmentation existing habitats give rise deer. conservation strategies simultaneously (i.e., corridors) have multiple different aspects linear corridors areas high vigilance, where implied edge.

Language: Английский

Representing mortality risk in mechanistic models DOI Creative Commons
Steven F. Railsback, Bret C. Harvey

Published: March 27, 2025

Mortality risk is a critical and complex component of individual fitness individual-based ecology, especially when risk-avoidance behaviors are considered. Organisms subject to multiple kinds that can vary with habitat, time, state, activity behavior, population status. Yet often represented very simply in models there little literature on practical ways model its variation. In our experience, desirable characteristics include: (a) survival probability variables individuals, other entities; (b) relations between specific be added or removed modified without re-fitting the entire model; (c) take different forms, including continuous nonlinear functions discrete values; (d) easy understand fit many data assumptions; (e) they calibrated by adjusting only one parameter. We review terminology conventions ecologists use risk, provide mathematical framework for modeling risk. For risks, we describe illustrate method “survival increase functions” each relate variable. These have form variable based information. The combined into single value easily calibrated. discuss methods evaluating functions, ranging from general field observations controlled experiments, knowledge mechanisms driving survival, even conceptual those mechanisms. This approach has proven representing effects represent how behavior depend

Language: Английский

Citations

0
Deer Vigilance and Movement Behavior Are Affected by Edge Density and Connectivity DOI Creative Commons
Savannah L. Bartel,

Leotie Hakkila,

John L. Orrock

et al.

Ethology, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

ABSTRACT Animal behavior is an important component of individual, population, and community responses to anthropogenic habitat alteration. For example, antipredator (e.g., vigilance) animal movement may both be behavioral the increased density edges changes in patch connectivity that characterize highly modified habitats. Importantly, edge might interact, this interaction likely mediate behavior: linear, edge‐rich landscape features often provide structural between patches, but functional connectedness patches for use could depend upon how modifies vigilance movement. Using remote cameras large‐scale experimental landscapes manipulate (high‐ vs. low‐density edges) (isolated or connected patches), we examined effects on white‐tailed deer ( Odocoileus virginianus ). Deer was 1.38 times greater near high‐density compared edges, regardless whether were isolated. also more move parallel than all other types, suggesting promotes along edges. These results suggest increases accompany human fragmentation existing habitats give rise deer. conservation strategies simultaneously (i.e., corridors) have multiple different aspects linear corridors areas high vigilance, where implied edge.

Language: Английский

Citations

0