Habitat use patterns and edge effects across a seagrass-unvegetated ecotone depend on species-specific behaviors and sampling methods

2018 ◽  
Vol 598 ◽  
pp. 21-33 ◽  
Author(s):  
C Gross ◽  
C Donoghue ◽  
C Pruitt ◽  
JL Ruesink
Keyword(s):  
Habitat Use ◽  
Edge Effects ◽  
Sampling Methods ◽  
Use Patterns ◽  
Species Specific

scholarly journals Ontogenetic Patterns of Elemental Tracers in the Vertebrae Cartilage of Coastal and Oceanic Sharks

2021 ◽  
Vol 8 ◽  
Author(s):  
Mariah C. Livernois ◽  
John A. Mohan ◽  
Thomas C. TinHan ◽  
Travis M. Richards ◽  
Brett J. Falterman ◽  
...  
Keyword(s):  
Life History ◽  
Habitat Use ◽  
Elemental Composition ◽  
Life History Traits ◽  
Shark Species ◽  
Ecosystem Structure ◽  
Population Declines ◽  
Use Patterns ◽  
Species Specific ◽  
Over Time

As predators, coastal and oceanic sharks play critical roles in shaping ecosystem structure and function, but most shark species are highly susceptible to population declines. Effective management of vulnerable shark populations requires knowledge of species-specific movement and habitat use patterns. Since sharks are often highly mobile and long-lived, tracking their habitat use patterns over large spatiotemporal scales is challenging. However, the analysis of elemental tracers in vertebral cartilage can describe a continuous record of the life history of an individual from birth to death. This study examined trace elements (Li, Mg, Mn, Zn, Sr, and Ba) along vertebral transects of five shark species with unique life histories. From most freshwater-associated to most oceanic, these species include Bull Sharks (Carcharhinus leucas), Bonnethead Sharks (Sphyrna tiburo), Blacktip Sharks (Carcharhinus limbatus), Spinner Sharks (Carcharhinus brevipinna), and Shortfin Mako Sharks (Isurus oxyrinchus). Element concentrations were compared across life stages (young-of-the-year, early juvenile, late juvenile, and adult) to infer species-specific ontogenetic patterns of habitat use and movement. Many of the observed elemental patterns could be explained by known life history traits: C. leucas exhibited clear ontogenetic changes in elemental composition matching expected changes in their use of freshwater habitats over time. S. tiburo elemental composition did not differ across ontogeny, suggesting residence in estuarine/coastal regions. The patterns of elemental composition were strikingly similar between C. brevipinna and C. limbatus, suggesting they co-occur in similar habitats across ontogeny. I. oxyrinchus elemental composition was stable over time, but some ontogenetic shifts occurred that may be due to changes in migration patterns with maturation. The results presented in this study enhance our understanding of the habitat use and movement patterns of coastal and oceanic sharks, and highlights the applicability of vertebral chemistry as a tool for characterizing shark life history traits.

Can animal habitat use patterns influence their vulnerability to extreme climate events? An estuarine sportfish case study

2017 ◽  
Vol 23 (10) ◽  
pp. 4045-4057 ◽  
Author(s):  
Ross E. Boucek ◽  
Michael R. Heithaus ◽  
Rolando Santos ◽  
Philip Stevens ◽  
Jennifer S. Rehage
Keyword(s):  
Habitat Use ◽  
Extreme Climate Events ◽  
Use Patterns ◽  
Extreme Climate ◽  
Climate Events ◽  
Animal Habitat

scholarly journals Habitat use patterns of franciscana dolphins (Pontoporia blainvillei) off southern Brazil in relation to water depth

2009 ◽  
Vol 89 (5) ◽  
pp. 943-949 ◽  
Author(s):  
Daniel Danilewicz ◽  
Eduardo R. Secchi ◽  
Paulo H. Ott ◽  
Ignacio B. Moreno ◽  
Manuela Bassoi ◽  
...  
Keyword(s):  
Habitat Use ◽  
Rio Grande ◽  
Limiting Factors ◽  
Small Scale ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Use Patterns ◽  
Management Procedures ◽  
By Catch ◽  
Pontoporia Blainvillei

The patterns of habitat use by the franciscana dolphins (Pontoporia blainvillei) along its distribution are poorly known. This study investigates the patterns of habitat use with respect to depth for 181 individuals of different age, size, gender and reproductive condition off Rio Grande do Sul, southern Brazil. The results reveal that franciscanas are very homogeneously distributed according to depth. Individuals from all lengths utilize nearly the entire range of depths of the surveyed area. Larger or older animals do not use deeper waters than younger animals, indicating that body size and age are not limiting factors for franciscanas that occupy deeper or offshore waters. Gestation seems to not cause a change in the distribution of females. Although the sex-ratio of the overall data did not vary from 1:1 in different depth intervals, a small-scale comparison between the northern and southern coast demonstrated the existence of some kind of sexual segregation. Franciscana by-catch in Rio Grande do Sul is not sustainable and it is agreed that management procedures are needed. Nevertheless, the available data on species distribution do not allow the designing of a protected area in order to minimize the by-catches of a particular sex/reproductive class.

Habitat-use patterns of the coypuMyocastor coypus in an urban wetland of its original distribution

2006 ◽  
Vol 51 (3) ◽  
pp. 295-302 ◽  
Author(s):  
María J. Corriale ◽  
Santiago M. Arias ◽  
Roberto F. Bó ◽  
Gustavo Porini
Keyword(s):  
Habitat Use ◽  
Use Patterns ◽  
Original Distribution ◽  
Urban Wetland

Habitat use patterns by ground beetles (Coleoptera: Carabidae) of northeastern Iowa

Pedobiologia ◽  
2003 ◽  
Vol 47 (3) ◽  
pp. 288-299 ◽  
Author(s):  
Kirk J. Larsen ◽  
Timothy T. Work ◽  
Foster F. Purrington
Keyword(s):  
Habitat Use ◽  
Ground Beetles ◽  
Use Patterns

scholarly journals Coyote (Canis latrans) Habitat use and Mortality in Grand Teton National Park and Suburban-Agricultural Areas of Jackson Hole, Wyoming

2000 ◽  
Vol 24 ◽  
pp. 51-59
Author(s):  
Matt McGee ◽  
Stan Anderson ◽  
Doug Wachob
Keyword(s):  
Habitat Use ◽  
National Park ◽  
Agricultural Land ◽  
Canis Latrans ◽  
Short Interval ◽  
Agricultural Area ◽  
Grand Teton National Park ◽  
Use Patterns ◽  
Jackson Hole ◽  
Agricultural Areas

A study of coyote (Canis latrans) habitat use and mortality in Grand Teton National Park and the suburban-agricultural land surrounding Jackson, WY was conducted between September 1999 and August 2000. This research focused on the influence of human development, habitat type, topography, and simulated wolf presence on coyote habitat use and on coyote mortality patterns in undeveloped and suburban-agricultural land. The overall goal of this project was to provide baseline information on the coyote population in Jackson Hole that can be used in the future to determine what, if any, impact wolves and human developments may have on coyotes. There were a total of fifteen radio-collared coyotes in the suburban-agricultural area and fourteen radio collared coyotes in Grand Teton National Park and adjacent areas in the National Elk Refuge and Bridger-Teton National Forest. Marked coyotes were tracked weekly using short interval telemetry relocations and triangulation to determine habitat use patterns. During the winter, track transects were skied weekly and coyote trails were backtracked and mapped using hand held GPS units to determine fine scale habitat use patterns. Coyote mortality was determined via telemetry and direct observation. Preliminary data analyses suggest that coyotes use mainly sagebrush-grasslands or forest-shrub-grass edge areas and avoid forest interior areas. Coyotes frequently use trails and roads in the undeveloped area when moving long distances. Preliminary analysis also indicates that roads and trails are used in a greater proportion than their abundance on the landscape. Coyotes were frequently observed using riparian corridors to move between open meadows in the suburban-agricultural area. There is some evidence that suggests coyotes selectively travel fences and irrigation ditches for long distances in agricultural areas. The movement data also suggests that coyotes avoid developed areas during the day and travel in these developed areas at night. The data on coyote locations suggests some avoidance of wolf urine scent grids in the undeveloped area, but not in the developed area. Coyote mortality was primarily human caused, and coyotes that were male, transient, and lived in the suburban-agricultural area were the most commonly killed animals.

Effect of the Wenchuan earthquake on habitat use patterns of the giant panda in the Minshan Mountains, southwestern China

2012 ◽  
Vol 145 (1) ◽  
pp. 241-245 ◽  
Author(s):  
Wen Zheng ◽  
Yu Xu ◽  
Lihuan Liao ◽  
Xuyu Yang ◽  
Xiaodong Gu ◽  
...  
Keyword(s):  
Habitat Use ◽  
Wenchuan Earthquake ◽  
Giant Panda ◽  
Southwestern China ◽  
Use Patterns ◽  
The Wenchuan Earthquake
Sign in / Sign up

Export Citation Format

Share Document