GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    A current affair: entanglement of humpback whales in coastal shark‐control nets
    Wiley ; 2020
    In:  Remote Sensing in Ecology and Conservation Vol. 6, No. 2 ( 2020-06), p. 119-128
    Details
    In: Remote Sensing in Ecology and Conservation, Wiley, Vol. 6, No. 2 ( 2020-06), p. 119-128
    Abstract: Shark‐control nets pose an entanglement risk to East Australian humpback whales during their annual northward and southward migrations between the Southern Ocean and the Coral Sea. Rates of whale entanglement exhibit seasonal and interannual variation, suggesting that an understanding of the influence of variability in the broad‐scale physical environment along the migratory route would be useful in assessing risk of entanglement. This study provides a quantitative spatio‐temporal analysis of the probability of whale entanglement in shark‐control nets relative to the position and characteristics of the East Australian Current ( EAC ), the dominant oceanographic feature of the region. We use satellite‐derived sea‐surface temperature, and outputs from a data‐assimilating ocean model, to develop multivariate, data‐driven algorithms for detecting the edge of the EAC using Principal Components Analysis. We use outputs from these algorithms to model the likelihood of humpback entanglements in South‐east Queensland. We find that the likelihood of entanglement increases when the EAC edge is locally less structured and closer to shore in the vicinity of the corresponding net, or when the EAC is well resolved over the entire study domain. Our results suggest that migrating humpbacks use the gradient in physical characteristics that marks the EAC inner edge as a navigational aid. Thus, when the EAC inner edge encroaches on the coast, the whales’ migration range is compressed into nearshore waters, increasing the risk of entanglement. Our findings can help predict periods of elevated entanglement risk, which could underpin a more data‐driven approach to the management of shark‐control programs, and other activities that involve static fishing gear.
    Type of Medium: Online Resource
    ISSN: 2056-3485 , 2056-3485
    URL: Issue
    URL: Article
    DOI: 10.1002/rse2.v6.2
    DOI: 10.1002/rse2.133
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2825232-9
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Presence of kin-biased social associations in a lizard with no parental care: the eastern water dragon (Intellagama lesueurii)
    Oxford University Press (OUP) ; 2019
    In:  Behavioral Ecology Vol. 30, No. 5 ( 2019-09-28), p. 1406-1415
    Details
    In: Behavioral Ecology, Oxford University Press (OUP), Vol. 30, No. 5 ( 2019-09-28), p. 1406-1415
    Abstract: Numerous studies have observed kin-biased social associations in a variety of species. Many of these studies have focused on species exhibiting parental care, which may facilitate the transmission of the social environment from parents to offspring. This becomes problematic when disentangling whether kin-biased associations are driven by kin recognition, or are a product of transmission of the social environment during ontogeny, or a combination of both. Studying kin-biased associations in systems that lack parental care may aid in addressing this issue. Furthermore, when studying kin-biased social associations, it is important to differentiate whether these originate from preferential choice or occur randomly as a result of habitat use or limited dispersal. Here, we combined high-resolution single-nucleotide polymorphism data with a long-term behavioral data set of a reptile with no parental care to demonstrate that eastern water dragons (Intellagama lesueurii) bias their nonrandom social associations toward their kin. In particular, we found that although the overall social network was not linked to genetic relatedness, individuals associated with kin more than expected given availability in space and also biased social preferences toward kin. This result opens important opportunities for the study of kinship-driven associations without the confounding effect of vertical transmission of social environments. Furthermore, we present a robust multiple-step approach for determining whether kin-biased social associations are a result of active social decisions or random encounters resulting from habitat use and dispersal patterns.
    Type of Medium: Online Resource
    ISSN: 1045-2249 , 1465-7279
    URL: Article
    DOI: 10.1093/beheco/arz093
    RVK:
    WA 15000
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1496189-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    European badger habitat requirements in the Netherlands – combining ecological niche models with neighbourhood analysis
    Wiley ; 2018
    In:  Wildlife Biology Vol. 2018, No. 1 ( 2018-01), p. 1-11
    Details
    In: Wildlife Biology, Wiley, Vol. 2018, No. 1 ( 2018-01), p. 1-11
    Abstract: European badger populations in the Netherlands suffered strong declines in the 1900s, becoming endangered in the 1980s. Despite mitigation actions, recovery of the population has been slow. Here, we use ecological niche modelling, relating 1515 badger sett (burrow) localities to data on topographic, groundwater table, soil type and land‐cover variables, to investigate the factors defining badger habitat suitability. Niche modelling of mobile animals such as badgers is challenging, as relevant features that determine habitat suitability surrounding animal sightings or burrow locations are often unaccounted for. In this study, habitat properties of the entire home range of individuals were incorporated via neighbourhood analysis on land‐cover variables. The neighbourhood analysis was applied at different spatial scales, to assess maximum model fit at the scale most representative of badger home‐range area in the Netherlands, which was approximately 3.6 km 2 . Our results showed that marine and river clay render highly unsuitable habitat for badgers. Grassland and maize crops presence, typically reported as driving factors, had little effect on badger distribution in the Netherlands. Instead, moderate vegetation cover, remoteness from urban infrastructures and low groundwater tables resulted in optimal conditions. We conclude that food availability is not a limiting factor for badgers in the Netherlands, but rather appropriate soil conditions for sett digging and non‐urban landscapes with sufficient cover for hideout determine their distribution. Our predictions indicate suitable areas that are not currently colonized. The results presented have important implications for management and conservation strategies in the Netherlands. Furthermore, we provide a useful general approach for niche modelling of mobile animals.
    Type of Medium: Online Resource
    ISSN: 1903-220X , 1903-220X
    URL: Article
    DOI: 10.2981/wlb.00453
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2276904-3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Eastern water dragons modify their social tactics with respect to the location within their home range
    Elsevier BV ; 2018
    In:  Animal Behaviour Vol. 144 ( 2018-10), p. 27-36
    Details
    In: Animal Behaviour, Elsevier BV, Vol. 144 ( 2018-10), p. 27-36
    Type of Medium: Online Resource
    ISSN: 0003-3472
    URL: Article
    DOI: 10.1016/j.anbehav.2018.08.001
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2018
    detail.hit.zdb_id: 1461112-0
    SSG: 12
    SSG: 5,2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Inhibitory Avoidance Learning in Zebrafish ( Danio Rerio ): Effects of Shock Intensity and Unraveling Differences in Task Performance
    Mary Ann Liebert Inc ; 2014
    In:  Zebrafish Vol. 11, No. 4 ( 2014-08), p. 341-352
    Details
    In: Zebrafish, Mary Ann Liebert Inc, Vol. 11, No. 4 ( 2014-08), p. 341-352
    Type of Medium: Online Resource
    ISSN: 1545-8547 , 1557-8542
    URL: Article
    DOI: 10.1089/zeb.2013.0970
    Language: English
    Publisher: Mary Ann Liebert Inc
    Publication Date: 2014
    detail.hit.zdb_id: 2156020-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Maternal nesting behaviour in city dragons: a species with temperature-dependent sex determination
    Oxford University Press (OUP) ; 2019
    In:  Journal of Urban Ecology Vol. 5, No. 1 ( 2019-01-01)
    Details
    In: Journal of Urban Ecology, Oxford University Press (OUP), Vol. 5, No. 1 ( 2019-01-01)
    Abstract: Urban environments present some of the greatest challenges to species survival. This is particularly true for species that exhibit thermally sensitive traits, such as temperature-dependent sex determination (TSD). This is because urban environments not only present species with entirely novel ecosystems, but species will also experience increased temperatures. These temperature increases may result not only in offspring mortality, but also skewed population sex ratios. To persist in cities, urban dwellers with TSD will therefore need to adjust the temperature of the nesting environment, either through phenotypic plasticity or rapid evolution through natural selection. Here, we investigate the nesting ecology of a long-lived, urban dwelling reptile, the eastern water dragon (Intellagama lesueurii), to understand how a TSD species may respond to urban environments. Based on data collected from 72 nests over 2 nesting seasons, we show that city dragons not only dug significantly deeper nests than previously observed across their natural riparian habitat, but also nested in novel substrates. Furthermore, we observed a behaviour not previously described in this species, where mothers travel outside of their core home range to nest. This excursion behaviour potentially represents a greater maternal investment and is linked to the selection of specific microhabitats.
    Type of Medium: Online Resource
    ISSN: 2058-5543
    URL: Article
    DOI: 10.1093/jue/juz005
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 2828456-2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...